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Xerox DocuPrint N2125 Network Laser Printer Service Manual

1. 4 i ba bul ko paa eee bel m taser PWB a EE L Pu Pu Pu ia a m er 2 u e ROS Print Engine controler PWB 550 Sheet 550 Sheet Lead Feeder Feeder Connector nt PWS PWB Jp pal eu PWB T se 5 s os po EA Registration Paper LJ fes Ctm Perder i Sizet PWB T if H ee il pm ME pa m a lo Pap 5 En j Ei du Ki H Pte Fuss Prva i ed ne id H 45 Ls 3 E rh PartotMBF fus rue ru re rw Sees Assembly Iri Pusrs i Gum cum Sensor Moor 7006A Figure 4 Block Diagram 1 of 2 initial Issue ae Wiring Data DocuPrint N2125 TP Base Engine
2. Print Engine serui E po ou cone we po lou s Sensor a HS H Rear interiock Switch CO 9 Jo Exit Motor 1 HO or Pu Fan Assy i EHO m Tee F221 ipie E Font Swen pu M We me PRE 1 EM d i Ld wes ud Ext Sensor PWB Pu pes I Es ss eS Ju E pn suc ou 1 wo fase Hoy system oa rl ystem Heater Rod 13 controler 18 Main Boner Smi swa user i Fuser Assy i 70068 Figure 5 Block Diagram 2 of 2 Wiring Data 022000 Initial Issue Base Engine 78 DocuPrint N2125 gram Tray 2 and Tray 3 Print Engine Controller PWB lt gt LVPS PWB and Fuser Assembly Fig ure 7 Table 2 h mme amp T H xcd E stack Right sensor Les Pw 4B FARO PIES IRL Fees HEN HEAT BE may Tayssie BEI ol 2 E Tum Clutch PEL Tu i BH Assembly 2 ZEN z a lg B ZAV ETN 8 18 lg Paper Litt Motor SAIN E Em A
3. 7012 Figure 12 Print Engine Controller PWB lt gt Size 1 PWB lt gt Feeder PWB lt gt Low Paper Sensor Stack Height Sensor Feed Clutch Assembly Turn Clutch Assembly Motor Assembly Print Engine Controller PWB lt gt Size 1 PWB lt gt Feeder PWB lt gt Low Paper Sensor Stack Height Sensor Feed Clutch Assembly Turn Clutch Assembly and Motor Assembly Initial Issue 9272000 Wiring Data DocuPrint N2125 745 Base Engine Table 8 shows the signal names for the Print Engine Controller PWB lt gt Size 1 PWB path Table 8 Signal Names Table 8 Signal Names Signal Name Description TON PRE Signal Wom the Low Paper Sensor equipped on the Feeder This signat Signal Name Description is Low when the Low Paper Sensor is activated TG MCU 550 Shoat Feeder check signal whichis rom tha Pant Engine Controller PW Signal Levels High 33V Low 0V Signal Levels High 33V Low 0V Print Engine Controller PWB lt gt Size 1 PWB lt gt Feeder PWB lt gt Low Paper Sensor Stack FDTXD Control data whichisiransteredTromihs Print Engine ComWollerPWE Height Sensor Feed Clutch Assembly Turn Clutch Assembly and Motor Assembly Signal Levels High 3 3V_ Low 0V Table 9 shows the signal names for the Feeder PWB lt gt Low Paper Sensor Stack Height horo Received data F
4. 125 3224 Figure 1 Damaged Print Actions Check that the paper supply is dry and fresh Check that rollers and other components in the paper path are clean and unobstructed Ensure that paper is within specification Procedure Observe paper feed as you run a test print The paper fed crooked YN Replace paper with fresh dry standard paper Run a Test Print The paper is still dam aged YN Open the Rear Cover Remove the Fuser Assembly Rotate the fuser idler gear manually and inspect the Heat Roll Open the fuser jam access cover Rotate the fuser idler gear manually and inspect the Pressure Roll The Heat Roll and the Pressure Roll are free of scratches and contamination YN Clean or replace the Fuser Assembly REP 6 2 Inspect the paper path between the feed tray and the exit tray for contamination or obstructions The paper path is free of obstructions YN Remove obstructions or contamination from the paper path Inspect all of the rolls along the paper path between the feed tray and the exit tray for contamination wear or damage The paper path rolls are free of contamination wear or damage Initial Issue DocuPrint N2125 02 2000 323 IQ RAP 13 IQ 14 Image Quality Repair Analysis Procedures 5 IQ RAP 15 Registration pcs the damaged ocio rl The image is not positioned correctly on the paper It may be of in either the process direction Install a n
5. that is reclaimed from the drum is not reused by the Print Cartridge Figure 8 Drum BTR Fuser Assy i Exit Assembly BOR H Cleaning Blade Burley Rosy Used Toner Output Ta CM Blade PUN Mag Fol 6010 Dru m Figure 1 The Three Possible Paper Paths 6008 Figure 8 Side View of the Print Cartridge General Procedures Information GP 3 1 GP 3 2 6 28 Figure 2 is a cut away side view of the N2125 printer that shows the major components thatare GP 3 3 Drive Flow PAM to ERA RS shown in Figure 1 the Drive Gear Assembly takes the mechanical energy that is created by the Main Motor Assembly and transmits it to four printer subsystems the Turn Clutch Assem Midi Rol Assy bly the drum gear the Fuser Assembly and the Optional Envelope Feeder Assembly The Exit MM tent t he ee Re tye oa core ng Ui a tede neue wok rH ane re Rubber Reg Roll Pinch Roll ain Motor Assembly Drive Gear Asserrbly s oe Roll Assy Diti anie un m Butt Gute ds ide ol s Bu iid UR em oHee a Bus ABl ta lg up ai mm Rm WIRT ERE DocuPrint 2125 629 GP3 1 GP 3 2 Drive transmission to the MBF Roll Assembly Drive transmission to the Turn Roll Assembly As shown in Figure 2 the mechanical energy created by the Main Motor Assembly is transmit shown in Figure 3 the mechanical energy created by the Main Moto
6. Frame Ground 5040 VDC Enton Pn Frame Ground 240 Vb CNTUT Pim3 Ground 240 VDC Pia 7 Frame Ground 5 VOT COT PE Frame Ground 33 VDC All voltages are correct YN The voltages on pins 1 2 and 3 are correct YN On the Print Engine Controller PWB check the voltage between P J28 pins 1 2 and 3 and frame ground All three readings are 24 0 VDC YN Replace the LVPS REP 9 5 On the Print Engine Controller PWB check the voltage between PISO pin 2 and frame ground The voltage is 24VDC YN Check the wiring between tho Print Engine Controller PWB and tho Rear Interlock Repair or replace the wiring or replace the Rear Interlock Switch REP 9 10 Replace the Print Engine Controller PWB REP 9 3 The voltage on pin 7 is correct YN On the Print Engine Controller PWB check the voltage between 28 pin 7 and frame ground The voltage is 45 0 VDC YN Replace the LVPS REP 9 5 Replace the Print Engine Controller PWB REP 9 3 On the Print Engine Controller PWB check the voltage between P J28 pin 10 and ground The voltage is 3 3 VDC YN Replace the LVPS REP 9 5 Initial Issue 272000 Status Indicator Repair Analysis Procedures DocuPrint N2125 RAP 29 RAP 30 Laser Assembly Procedure Enter Diagnostics and select Component Test Scroll to ROS Motor and press Enter You can hear the ROS Motor spin up YN Switch the printer power off Remove the Left Interface Cover REP 1 1 Left Cover RE
7. Duplex NS Ves ves es Universal 1050 RES X887 x x iad Legal 13 215 9 330 2 8 5 __ Duplex Duplex NS es Yes Ves 130 ser ser Ai 210x287 min 2r x Duplex Duper YW Nes es Nes 11 69 SEF seF BS 182x257 mm 716x Duplex Duplex M es ves Nes 10127 SEF BSISO 1760 200 mm 693x mper CUS Nes es Nes seF initial Issue 022000 General Procedures Information DocuPrint N2125 6 9 GP 1 5 Table 8 Media Input Output Chart Table 8 Media Input Output Chart nus pus Tray 1 2 3 Envelope Tray 1 2 3 Envelope Paper ratte loser race Paper coton oder race Sine Paper size er Tay Lega epton Mam ub foc sive Papersizo mer lepton main up ocr e BOYER Eimer sme NS ves vee Gusom 823 2159 X lez Ser ser mm 07 897 Executive 182 4 x 266 7 mm 25x Duplex Duplex NS Yes ves Yes Length 257 0 355 6mm 110 5 SEF SEF 1010 14 T8A4 990 x 210 0 mm 38x jimplex Simplex NE Ves Yes Ves ustom Simplex Width 98 4 215 9 X 8 27 cus cus 3 9 8 5 ae 3972 89 m Simplex CUS e es E res Length 1480 355 8mm ment 857 SEF 687 145 UF FET BF TIST STR Simplex IN ves ves ustom Duplex Width 182 0 215 9 x card 5 5 SEF e Taek STORET enge RS
8. Initial Actions are used to gather information regarding the performance of the machine and prepare the product for servicing Corrective Actions are used to verify the normal operation of the machine In the Y N Yes No steps of the corrective actions a Yes response will lead you to the next step No response will indicate the next step to perform or wil direct you to a Repair Analysis Procedure RAP RAPs will provide the instructions to isolate the faulty part or provide list of suspect parts when isolation is not appropriate Wire harnesses are not included in the repair actions and problems with loose connections or damaged harnesses should be isolated using visual inspection and the wiring data in section 7 Final Actions are used to evaluate the total operation of the system and to identify the actions required to complete the service call 1 1 Machine Orientation For servicing the DocuPrint N2125 all references to machine orientation are as illustrated in Figure 1 Let Side wo Right Side Front Process Sean gt Direction Direction Figure 1 Machine Orientation Initial Issue DocuPrint N2125 02 2000 13 Service Call Procedures 1 0 1 1 1 2 Call Flow The cal low diagram shows the relationship of actions during a typical service call Figure 1 The functions in Call Flow correspond to service manual sections as follows Section 1 Initial Actions Corrective Actions and
9. 2 2000 7 12 2 2000 7 13 2 2000 7 14 2 2000 7 15 2 2000 7 16 2 2000 7 17 2 2000 7 18 2 2000 7 19 2 2000 7 20 2 2000 7 21 2 2000 7 22 2 2000 7 23 2 2000 Page Revision 7 24 2 2000 7 25 2 2000 7 26 2 2000 7 27 2 2000 7 28 2 2000 7 29 2 2000 7 30 2 2000 7 314 2 2000 7 32 2 2000 7 33 2 2000 7 34 2 2000 7 35 7 36 2 2000 2 2000 Page Revision Page Revision Revision Control List 02 2000 Initial Issue DocuPrint 2125 Page Revision Page Revision Page Revision Page Revision Page Revision Page Revision Initial Issue DocuPrint N2125 02 2000 Revision Control List 1 Service Call Procedures 1 0 Introduction 13 1 1 Machine Orientation 13 1 2 Call Flow 14 133 Initial Actions 15 14 Corrective Actions 15 1 5 Final Actions 17 Initial Issue 022000 Service Call Procedures DocuPrint N2125 14 Service Call Procedures 022000 Initial Issue 12 DocuPrint N2125 1 0 Introduction The Service Call Procedures section is used to identify a suspected problem This section con tains Call Flow Initial Actions Corrective Actions and Final Actions Call Flow illustrates the normal activities and flow of a service
10. Check the Paper Feed Assembly for binding obstructions or contamination The feed assem bly is clean and in good condit YON Clean repair or replace as necessary REP 11 12 ifthe problem persists replace the following in order until the problem is found Print Engine Controller PWB REP 9 3 Feeder PWB REP 11 9 Size PWB REP 11 19 Paper Feed Clutch REP 11 10 Initial Issue DocuPrint N2125 02 2000 245 RAP 52 RAP 53 Analysis Procedures RAP 54 550 Sheet Feeder Assembly Not Recognized Controller does not recognize the Feeder Assembly Procedure Check the alignment of the printer to the 550 Sheet Feeder and the alignment of the top 550 Sheet Feeder to the second 550 Sheet Feeder if installed Ensure that the connectors are properly aligned and properly connected connectors are properly aligned and con nected Reseat the feeders and printer to obtain proper alignment and connection Switch the printer power off Remove the Lett Interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Switch the printer power on On the Print Engine Con troller PWB check the voltage between P J33 pin 13 and frame ground The voltage is 2aVDC On the Print Engine Controller PWS check the voltage between P J33 pin 6 and frame ground The voltage is 24 0VDC YN Replace the Print Engine Controller PWB REP 9 3 Remove Paper Tray 2 Check th
11. N2125 3309 igure 1 Skips Smears Spots Procedure From the menu mode run a Config Sheet Inspect the print for spats Figure 1 Within 208 x 95 mm square There should be no spots larger than or equal to 0 5 mm visible on the prints There should be no more than 1 spot measuring between 0 4 mm and 0 5 mm visible on the print There should be no more than 16 spots measuring between 0 25 mm and 0 4 mm visible on the print Any spot measuring less than 0 25 mm is acceptable The prints are free of spots or the spots that are visible fall within the acceptable range YON Go to IQ RAP 3 Spots Go to Other Print Defects image Printed Image N2125 3310 Figure 1 Spots Image Quality Repair Analysis Procedures Skips Smears Spots 02 2000 Initial Issue DocuPrint N2125 Other Print Defects Procedure Inspect the Test Patterns for other Print Defects Test Prints are free of defects There are dark streaks present on the Test Prints YN There is a residual image ghosts on the Test Prints Y inkles creases tears ete The printer meets specifications Go to Initial Actions Go to IQ RAP 14 Damaged Prints Go to IQ RAP 9 Residual Image Goto IQ RAP 7 10 RAP 8 Streaks Go to Final Actions 1Q RAP 1 Light Undertoned Prints The overall image density is too light Figure 1 N2t25 aoi Figure 1 Light Prints Actions Inspect the printer paper path for
12. Problem Solved RAP 59 Remove Output From Offset Bin C5 Error code indicates the output tray is full Procedure There is a paper stack in the offset bin actuating the Stack Full Sensor YN The paper is curled YN Y Y Lift and release the Stack Full Actuator a few times The actuator moves freely YN Replace Stack Full Actuator REP 10 12 or Stack Full Sensor REP 10 13 as necessary Enter diagnostics and select Component Test Scroll to Sensor Input test Manually actuate and deactuate the Stack Full Actuator The number on the LCD incre ments each time you lift and release the actuator the count may have a short delay because of the sensor circuit YN Goto RAP 60 Replace Print Engine Controller PWB REP 9 3 Replace paper in paper tray with fresh dry paper Run test prints The error code reap pears N Problem solved Enter diagnostics and select Component Test Scroll to Sensor Input test Manually actu ate and deactuate the Stack Full Actuator The number on the LCI time you lift and release the actuator the count may have a short delay because of the sensor circuit rements each N Go to RAP 60 Replace Print Engine Controller PWB REP 9 3 Remove the paper stack Status Indicator Repair Analysis Procedures RAP 58 RAP 59 2 50 Initial Issue DocuPrint N2125 RAP 60 OCT Stack Full Sensor Procedure Enter Diagnostics and select Component Te
13. Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left Interface Cover Assembly REP 1 1 3 Remove the Front Cover Assembly REP 1 6 4 Remove the Left Front Cover REP 1 7 5 Remove the Lett Cover REP 1 2 6 Remove the Left Plate Assembly REP 1 11 7 Remove the Top Cover Assembly REP 1 4 Remove the Rear Cover Assembly REP 1 8 Remove the Interlock Cover REP 1 10 10 Disconnect P J31 and PLIS2 from the Print Engine Controller PWB Figure 1 d 11 Remove the four screws that secure the Exit Chute Assembly to the printer Figure 2 12 Remove the Exit Chute Assembly Figure 2 2 126 4088 Figure 2 Exit Chute Assembly Replacement 1 Reinstall the components in the reverse order 10 2125 4089 Figure 1 Exit Chute Harness Assembly initial Issue pum Repair Adjustment DocuPrint N2125 445 REP 6 4 REP 6 5 Exit Motor Assembly Parts List on PL 7 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left interface Cover Assembly REP 1 1 Remove the Front Cover Assembly REP 1 5 Remove the Lett Front Cover REP 1 7 Remove the Left Cover REP 1 2 Remove the Left Plate Assembly REP 1 11 Remove the Top Cover Assembly REP 1 4 Remove the Rear Cover Assembly REP 1 8 Remove the Interlock Cover REP 1 10 Remove the Exit Chute Assembly REP 6 4 Remove the two screws that secure the Exit Motor Assembly to the Exit Chute
14. TIT Fur E e Negatvely Charged Toner reis UNS 5 ag Rar Layer Figure 4 Side View Block Diagram of the Development Process Transfer Figure 5 The Bias Transfer Roll BTR applies a positive charge to the back side of the printing paper as the paper travels between the BTR and the drum surface This positive charge transfers the negative charged toner image from the drum surface to the front of the paper The toner image is now on the paper and the paper is now stuck to the drum sur face due to the relative electrical differences General Procedures Information GP 3 1 02 2000 626 Initial Issue DocuPrint N2125 Deum HPS Charged Negative Charged Postive Negatively Charged Toner f ESSE rer ki i Figure 5 Side View Block Diagram of the Transfer Process 5 Discharge Figure 6 After the toner image has transferred to the surface of the paper the Detack Saw a thin Strip of metal that resembles a saw blade applies a negative charge to the back side of the paper to neutralize the positive voltage that was applied to it by the BTR Once the positive voltage is neutralized the paper strips easily off of the drum surface DETACK SAW Nee 58 are Tee XXI 999 2 968999699 DETACK SAW 6006 Figure 6 Side View Block Diagram of the Discharge Process Fusing Figure 7
15. The paper moves to the Fuser Assembly where it passes between the Heat Roll and the Pressure Roll The Heat Roll melts the toner image and bonds it permanently to the paper The paper then is transported to the output tray Cleaning Figure 7 The Cleaning Blade removes any toner that remains on the drum after the transfer pro cess Immediately after passing the Cleaning Blade the drum passes under the BCR The BCR applies an AC voltage to the surface of the drum to neutralize any electrical pat terns remaining from the last print cycle Initial Issue DocuPrint N2125 02 2000 627 General Procedures Information GP 3 1 Laser Beam 1G Exposure Figure 7 Side View Block Diagram of the Fusing and Cl The toner that the Cleaning Blade removes is collected inside t Heat Rol Pasig GP 3 2 The Paper Path There are three paths that a sheet of paper can follow during a feed cycle Figure 1 One path is taken if paper is fed from the Paper Tray Another path is taken if paper is fed from the Multi ple Bypass Feeder MBF A third path is taken if paper is fed from the Envelope Feeder Assembly option the Print Cartridge Toner Cassette Feed Assy MBF Feed Envelope Feed i i Feed Roll MBF Foll Assembly Assembly i Turn Foll Assembly i Metal Registration Foll Rubber Registration Roll i
16. BE 2 EJ E PEST ETAT sere Kl R Low Paper eae en 15 Stack Height Sensor 291 user Asser FES EL reed ctuten 1 a al E Assembly 2 a Tey2 size WEB 8 D lid vov 2 El Clutch FE 8 8 FR Assembly d Rl mE Figure 7 Print Engine Controller lt gt LVPS lt gt Fuser RER E Lis Paper un motor Lj Print Engine Controller PWB lt gt LVPS PWB and Fuser Assembly mea Table 2 shows the signal names for the Print Engine Controller PWB lt gt LVPS PWB path 1 El Pre Table 2 Signal Names E m 3 Sensor Signal Name Pap 81 8 E Stack Height Sensor FANON Fan drive power that drives the Fan Assembly wih 2 voltages 24V Tar High H mi dm speed and 15V for Low speed 5 d HERI Tj Fuser control signal to switch AC power to the Heat Rod on and off E ae EFO mo Pow ie Borm Lou 0V ON High a3 OFF m gl Mtn FFIGH AV Fan speed switching signal that switches the speed of rotation ot he Fam Assembly between High and Low Hm E Bde Paper Lit Motor Low High speed High 24V Low speed FAN ALARM Fan monitor signal Goes Low when the rotation of the Fan Assembly is abnor Print Engine Contr LT E d Ww Low OV Abnormal High 3 3V Normal Figure 6 Block Diagram Tray 2 and Tray 3 Initial Issue pum Wiring Data DocuPrint N2125 Base Engine LVPS PWB lt gt Fan Assembly Front Switch Int
17. Figure 6 Parallel Menu Figure 7 Serial Menu General Procedures Information 02 2000 Initial Issue GP 4 1 6 52 DocuPrint N2125 USB Menu Select the USB Menu using the Menu Up and Menu down keys Select a variable with Item Up or Item Down keys Use the Value Up or Value Down keys to scroll to the requested value Use Enter key to load value in NVRAM Asterisk indicates factory default values Tem Keys Job Menu Password Menu Tray Menu Port Enable PCL Menu System Menu Port Timeout Parallel Menus Serial Menu USB PDL Postscript USB Menu Ethernet Menu Binary PS Token Ring Menu Novell Menu Print Menu Reset Menu T Menus marked with 9 only appear if certain options are installed Seo Menu Maps for details of each menu The Reset Menu is only visible in the 1 menu ist if the printer is powered euo while pressing the Online and Enter Figure 8 USB Menu Initial Issue 0212000 General Procedures Information DocuPrint N2125 653 GP 4 1 Select the Ethernet Menu using the Menu Up and Menu down keys Select variable with Item Up or Item Down keys Use the Value Up or Value Down keys to scrol to the requested value Use Enter key to load value in NVRAM Asterisk indicates factory default value The Ethernet menu does not appear if the Token Ring Card is installed item Keys Job Menu LPR Enable Password Menu LPR Banner Tray Menu LPR POL PCL Menu LPR
18. 7 Ifthe problem is the result of incorrect operator action refer the operator to the User doc umentation NOTE The printer has the capability of displaying error messages while in the online mode or in the diagnostic mode The Fault History log wil list the last 100 errors that have occurred The three codes may be different in format but you can use any one of the codes to access the Error Code Tables Table 1 or Table 2 in section 2 The Error Code Tables wil lit the corrective actions or direct you to a If an error message is displayed refer to the Error Code Tables Table 1 or Table 2 f possible print the Configuration Sheer To print the Configuration Sheet press and release 1 or 5 until Print Menu is displayed Then press and release 2 or 6 until Config Sheet is displayed Press Enter 4 to print the sheet If the sheet is blank go to 1Q RAP 2 Have the customer determine that the configuration settings are correct If possible print the Fault History To print the Fault History press and release 1 or 5 until Print Menu is displayed Then press and release 2 or 6 until Fault History is dis played Next press Enter 4 to print the sheet The Fault History wil list the error codes the meter count when the event happened Use the Fault History to determine the fre quency of a problem Access the Error Code Tables Table 1 or Table 2 and perform the corrective action as
19. Figure 2 XL UK and AO 220 VAC Outlet XL Europe 220 VAC Figure 3 Perform the following Measure the AC voltage between the supply pins then between a supply pin and earth then between the other supply pin and earth The voltage is 198 to 264 VAC between the supply pins and between one of the supply pins and earth Between the other supply pin and earth is less than 3 Earth Supply Pins E enum Figure 3 XL Europe 220 VAC Outet The voltage measured la correct YON Inform the customer of insufficient voltage of improper wing Check the continuity through all connections of the power cord The measurement is less AC Neutral AG Line than 10 ohms for each connection YN Replace the power cord PL 10 1 as applicable Perform RAP 2 635 0008 Figure 1 US XCI and AO 115 VAC Outlet XL UK and AO 220 VAC Figure 2 Perform the following Measure the AC voltage between Line and Neutral between Line and Earth Ground and between Neutral and Earth Ground The voltage between Line and Neutral and between Line and Earth Ground is 198 to 264 VAG and between Neutral and Earth Ground is less than 3 vac Initial Issue 272000 Status Indicator Repair Analysis Procedures DocuPrint N2125 241 1 RAP 2 DC Power Check the voltages listed in Table Y This procedure is used to troubleshoot he Low Voltage Power Supply Pioced re Red Lead Black Lead Voltage Pe
20. power is switched on voltage is Replace the LVPS REP 9 5 Replace the Fan Assembly REP 9 1 Enter Diagnostics and select Component Test Scroll to Fan Motor Hi and press Enter The Fan rotates at high speed YN Switch the printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and Left Plate Assembly REP 1 11 Switch the printer power on Scroll to Fan Matar Hi and press Enter On the LVPS check the voltage between P J283 pin 1 and frame ground The voltage is 421 5VDC YN Press the Online 0 key Check the voltage between P J281 pin 11 and frame ground Press the Enter key The voltage changes from 0 8VDC to 0 0VDC when you press the Enter key YN Replace the Print Engine Controller PWB REP 9 3 Replace the LVPS REP 9 5 Replace the Fan Assembly REP 9 1 Switch the printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and Left Plate Assembly REP 1 11 Enter Diagnostics and select Component Test On the LVPS check the voltage between P J283 pin 2 and frame ground The voltage is less than 10VDC YN Replace the Fan Assembly REP 9 1 Replace the Print Engine Controller PWB REP RAP 21 Low Paper Tray Paper stack in the Paper Tray Assembly is below 50 30 sheets Procedure Insert a full Tray Assembly in the affected position The Error Message reappears YN Problem solved Remove the affected tray Assembly Push up the Low P
21. REP 5 4 Registration Sensor Parts List on PL 5 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left Interface Cover Assembly REP 1 1 Remove the Front Cover Assembly REP 1 5 Remove the Lett Front Cover REP 1 7 Remove the MBF Chute Assembly REP 4 1 Remove the Paper Handler Assembly REP 5 1 Remove the Registration Actuator REP 5 3 Disengage the five hooks that secure the Sensor Figure 1 Remove the Sensor out the back of the Paper Handler Figure 1 0 Disconnect P J432 from the Registration Sensor REP 5 5 Registration Clutch Parts List on PL 5 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left Interface Cover Assembly REP 1 1 Remove the Front Cover Assembly REP 1 6 Remove the Left Front Cover REP 1 7 Remove the MBF Chute Assembly REP 4 1 Remove the Paper Handler Assembly REP 5 1 Remove the E ring that secures the Registration Clutch to the Paper Handler Assembly Figure 1 Slide the clutch out and Disconnect P J483 from the Clutch Figure 1 9 Remove the Clutch ni S 8 e Figure 1 Registration Sensor i g Replacement Figure 1 Registration Clutch 1 Reinstall the components in the reverse order P Replacement 1 Reinstall the components in the reverse order Repair Adjustment pem Issue REP 5 4 REP 5 5 440 DocuPrint N2125 REP 5 6 Rubber Registration Roll Parts List on
22. Remove Left Cover REP 1 2 4 Remove the Front Cover Assembly REP 1 6 5 Remove the Left Front Cover Assembly REP 1 7 6 Remove Top Cover Assembly REP 1 4 7 Remove the Loft Plate Assembly REP 1 11 8 Remove the Plate Handle REP 1 12 9 Remove the Size Sensor Housing REP 3 11 10 Disconnect 451 from the Tray 1 Size PWB Figure 1 11 Remove the two screws that secure the Size Harness Assembly to the Sensor Figure 1 12 Remove the Size Harness Assembly Figure 1 Figure 1 Size M Harness Assembly Replacement 1 Reinstall the components in the reverse order Repair Adjustment REP 3 13 REP 3 14 02 2000 428 Initial Issue DocuPrint N2125 REP 4 1 MBF Chute Assembly Parts List on PL 4 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left Interface Cover Assembly REP 1 1 Remove the Front Cover Assembly REP 1 6 Remove the Left Front Cover REP 1 7 Disconnect P J41 444 and P J45 from the Connector PWB Figure 1 Open the two clamps securing the harness of the MBF Chute Assembly to the printer Figure 1 Remove the four screws that secure the MBF Chute Assembly Remove the assembly Figure 1 2125 408 Figure 1 MBF Chute Assembly Replacement 1 Reinstall the components in the reverse order REP 4 2 MBF Feed Roll Assembly Parts List on PL 4 1 Removal WARNING Switch off the power and disconnect the Power Cord
23. Remove the Offset Roll Assembly Figure 1 1 Remove he Offset Catch Tray REP 10 1 2 Remove the Exit Tray Extension REP 102 8 Remove the Exit Tray REP 10 3 4 Turn the Offset Catch Tray upside down 5 Remove the Lower Cover REP 10 5 6 Hold open the Rear Cover 7 Remove the Inner Exit Chute Assembly REP 10 6 Remove the Offset Catch Tray PWB REP 10 7 Remove the Static Eliminator REP 10 9 10 Remove the Stack Full Actuator REP 10 12 11 Release the locking tab and remove the Exit Gear Figure 1 12 Remove the Exit Gear Bearing Figure 1 13 Release the two locking tabs and remove the Offset Level from the Offset Roll Assembly Figure 1 14 Remove the Exit Shaft Figure 1 Figure 1 Offset Roll Assembly Replacement 1 Reinstall the components in the reverse order Repair Adjustment pum Initial Issue REP 10 14 474 DocuPrint N2125 REP 10 15 Mid Roll Assembly Parts List on PL 14 2 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the Offset Catch Tray REP 10 1 2 Remove the Exit Tray Extension REP 102 8 Remove the Exit Tray REP 10 3 4 Hold open the Rear Cover 5 Tum the Offset Catch Tray upside down 6 Remove the Lower Cover REP 10 5 7 Remove the Inner Exit Chute Assembly REP 10 6 8 Remove the Offset Catch Tray PWB REP 10 7 Remove the screw that secures the ground plate to the bottom of the Motor D
24. WARNING Switch off the power and disconnect the Power Cord 1 B 13 14 15 16 17 18 19 20 2 22 23 24 Remove Tray 1 Remove the Left Interface Cover Assembly REP 1 1 Remove the Left Cover REP 1 2 Remove the Front Cover Assembly REP 1 6 Remove the Left Front Cover REP 1 7 Remove the Left Plate Assembly REP 1 11 Remove the Plate Handle REP 1 12 Open Rear Door Remove the Fuser Assembly REP 6 2 Remove the Top Cover Assembly REP 1 4 Remove the MBF Chute Assembly REP 4 1 Remove the Paper Handler Assembly REP 5 1 Remove the Transport Chute Assembly REP 6 1 Remove the Print Cartridge Top Guide Assembly REP 7 2 Remove the Print Engine Controller PWB REP 9 3 Remove the Main Motor Assembly REP 8 1 Remove the LVPS PWB REP 9 5 Remove the Drive Gear Assembly REP 8 2 Unplug the P JPRE red from the HVPS PWB REP 10 6 Remove the screw that secures the HVPS Housing to the printer Figure 1 Remove the HVPS Pull the Fuser Harness Assembly from the left side of the printer Figure 1 Remove the two screws that secure the Fuser Harness Assembly to the printer Figure 1 Remove the Fuser Harness Assembly 2128 4078 Figure 1 Fuser Harness Assembly Replacement Reinstall the components in the reverse order Repair Adjustment REP 6 3 444 02 2000 Initial Issue DocuPrint N2125 REP 6 4 Exit Chute Assembly Parts List on PL 7 1 Removal WARNING
25. a gt 211 2 n 2121 EI 213 77 3i 261 nome z PRB ie F 42 m Ls L eg ES 341 s51 18 EN i 662 DTS 661 2 EI E om Figure 2 Base Engine Pid Location Map 2 of 2 Figure 1 Base Engine PIJ Location Map 1 of 2 Initial Issue 0212000 Wiring Data DocuPrint N2125 75 Wiring Diagram Notations The wiring diagrams presented in this manual use the following circuit notations to describe components and signal paths within the printer Figure 3 A Plug Ade Connection of Pin 15 of Connectors PiJ28 P28 and J28 m 15 gt 5V INTLK The signal name of a vire The voltage measured with the 20c negativo probe of the meter on SG The voltage value of a signal 1 The voltage goes LOW when the signal is In this case the HEAT signal is ON so the normal voltage of 3 3VDC drops to 0 0 SG Signa Ground FG Frame Ground HIN Fetum There is continuity between SG and Continuity between FG and SG depends on circuit specifications TTL TTL displayed in tho HIGH level or LOW level columns of the signal tables indicate the signal is ECL CMOS compatible HIGH is approximately 3 3VDC LOW is approximately 0 to 0 8VDC Figure 3 Wiring Diagram Notations Wiring Data 0212000 Initial Issue Base Engine 7 DocuPrint N2125 Block Diagram
26. 1 Reinstall the components in the reverse order Repair Adjustment REP 12 3 REP 12 4 0212000 Initial Issue DocuPrint N2125 REP 12 5 Drive Cover Parts List on PL 13 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the Duplex Assembly REP 12 1 2 Remove the two screws that secure the cover Figure 1 3 Remove the Drive Cover Figure 1 Figure 1 Drive Cover Replacement 1 Reinstall the components in the reverse order REP 12 6 Connector Chute Assembly Parts List on PL 13 1 Removal WARNING Switch off the power and disconnect the Power Cord 7 Remove the Duplex Assembly REP 12 1 2 Remove the Duplex Cover REP 12 3 Remove the Drive Cover REP 12 5 4 Remove the Duplex PWB REP 12 4 Only disconnect P J39 Figure 1 5 Remove the connector harness from al cable clamps and pull connector through the hole in the frame Figure 1 6 Remove the two screws that secure the Connector Chute Assembly Figure 1 Figure 1 Connector Chute Assembly Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 02 2000 Repair Adjustment 495 REP 12 5 REP 12 6 REP 12 7 Upper Chute Assembly Parts List on PL 13 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the Duplex Assembly REP 12 1 2 Remove the Duplex Cover REP 12 3 3 Remove the Drive Cover REP 12 5 4 Remove the Connector Chute Assembly REP
27. Portugese Bra Plain A6 105x148 Pyooknn Preprinted AS 148x210 Deutsch Letterhead AA 210x297 ignore Size Transparency 287x420 Ignore Type Prepunched en Ignore Labots B5 150 176x250 Job Menu Langua i Index Card 3x5 Password Paper Size Pocycled 4 5 257364 Menu aper ype lor Com10 4 125 9 5 POL Menu n 300 Seconds Cardstock HS System Menu Policy Timeout den User type 1 DL 110x220 Paralel Menu Print Quantity ie diets See Seal Menu Duplex ier s USB Menu Draft Mode User type 4 Exec 7 25x10 5 Ethernet Menu Edge to Edge User po 5 Token Ring Menu Novell Menu Resolution Print Mena Output Timeout Reset Menu Output Offset Output Dest Print PS Errors Power Sever Defaults Short Edge oF ON pienas arte WIT hy appear 1 orth optone are ns Sod Menu TA Maps Yor elas of each menu 1200 1200 1 The Reset Menu is only visible in the menu list if the printer is powered while pressing the Online and Enter ie Standard Bin 1 Default paper size is a function of the Defaults setting See Section 5 2 User Types are only displayed if loaded Figure 5 System Menu Initial Issue 022000 General Procedures Information DocuPrint N2125 6 51 GP 4 1 Parallel Menu Serial Menu Select the Parallel Menu using the Menu Up and Menu down keys Selecta variable with Select tho Serial Menu usi
28. REP 12 1 Reinstall the Duplex Assembly Enter diagnostics and select Test Print Run 15 to 20 duplex test prints The error code reappears YN Problem solved Select Component Test Scroll to Duplex Motor Low and press Enter Then scroll to Duplex Motor Hi and press Enter You can hear the Duplex Motor run at both speeds YN Remove the Duplex Assembly then remove the Duplex Cover REP 12 3 Disconnect P J38 from the Duplex PWB Measure the resistance on the disconnected plug between pin 1 and pin 2 between pin 1 and pin 3 between pin 1 and pin 4 and between pin 1 and pin 5 All four readings are between 30 and 37 ohms Replace the Duplex Motor Assembly REP 12 8 Replace the Duplex PWB REP 12 4 f the problem persists replace the Print Engine Controller PWB REP 9 3 Press 0 for one second to stop all tests Scroll to Sensor Input test and press Enter Use a small strip of paper to actuate and deactuate the Duplex Transport Sensor The number on the LCD increments each time you press and release the actuator YN Replace the Duplex Sensor Assembly REP 12 13 If the problem persists replace the Print Engine Controller PWB REP 9 3 Perform RAP 32 to test the Registration Sensor The Registration Sensor is wor rectly YN Replace the Registration Sensor REP 5 4 Replace the Print Engine Controller PWB REP 9 3 Initial Issue DocuPrint N2125 02 2000 247 Status Indicator Repair Analysis Pro
29. Scroll to Sensor Input test and press Enter 4 Open the rear cover and open the Fuser Access Cover Use a folded piece of paper to block and unblock the Fuser Exit Sensor The number on the LCD increments each time you block and unblock the sensor YN Switch the printer power off Remove the Lett interface Cover REP 1 1 Left Cover REP 12 and the Left Plate Assembly REP 1 11 Disconnect 27 from the Print Engine Controller PWB Switch the printer power on Check the voltage between P J27 pin and frame ground The voltage is 3 3VDC YN Check the voltage between P J28 pin 10 and frame ground The voltage is 3 3VDC YN Replace the LVPS REP 9 5 Replace the Print Engine Controller PWB REP 9 3 Switch the printer power off Reconnect P J27 to the Print Engine Controller PWB Switch the printer power Measure the voltage between P J27 pin 5 and frame ground as you block and unblock the Fuser Exit Sensor The voltage is 3 3VDC when the Fuser Exit Sensor is blocked and 0 0VDC when unblocked YN Replace the Fuser Assembly REP 6 2 Replace the Print Engine Controller PWB REP Replace the Print Engine Controller PWB REP 9 3 RAP 49 Exit Motor Procedure Switch the printer power of Open the Rear Cover and manually rotate the Exit Chute Assem by The Exit Chute rotates without binding YN Remove the Exit Chute Assembly REP 6 4 Repair or replace components as necessary PL7 1 Enter diagn
30. Stack Height Sensor P O item 19 24 Gear Clutch P O item 19 25 OM Clutch Assembly P O tem 19 26 Rll Assembly P O tem 44 27 Gear 25T PIO tem 19 28 Gear 311 PIO item 19 23 809E11610 Nudger Spring 30 Gear 4 42 with 11 12 3 Gear2 32 Gear Cover Bracket 34 Gears 35 Gear 1 36 160052781 Feeder PWB 37 121K19010 Feed Clutch Assembly 38 Bearing 39 NIMOT Harness Assembly 40 Socket 41 600079640 Socket amp Harness Kit with 39 40 600K79650 Actuator amp Support Kit with 11 12 2050900 Feeder Assembly Kit with 1 40 44 600079550 Feed Roll Kit tem 26 quantity 3 45 108100230 Feed Roll Usage Kit tem 44 p quantity 2 46 600079660 Hardware Kit includes screw Initial Issue pum Parts ist DocuPrint N2125 59 PL3 1 PL 4 1 MBF Chute Item Part Description 1 with 2 26 T S80 MBF Chute Assembly ith 290 2 cares MBF Roll Assembly with 3 6 28 BR at es 3 MBF Shaft Assembly ILLI i MBF 5 MBF Rol Assemb 7 Bearing 4 Tay Bato Assembly wth 11 12 5 MBF Bottom Pad Tay Pave moO I TorBotom PO tam 8 12 MBF No Paper Actuator PIO tem 8 MBF Bottom Spring 4 oz teary 16 Gis Retard Pad Assombiy 16 190681970 Paper Sot Sonor voc MBF Ground Pio MBF Chat Acco 18 Vaso Pek Up Somme 0 MBF Sprog 2 Gear Pek Up 7000 Enmlope Comair Pato 28 Connector Assembly Be lt Cam
31. 1 Reinstall the components in the reverse order REP 12 2 Turn Chute Assembly Parts List on PL 13 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the Duplex Assembly REP 12 1 2 Remove the two screws that secure the Turn Chute Assembly Figure 1 3 Remove the Turn Chute Assembly Figure 1 Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 02 2000 493 REP 12 1 REP 12 2 Repair Adjustment REP 12 3 Duplex Cover Parts List on PL 13 2 Removal WARNING Switch off the power and disconnect the Power Cord 1 2 4 Remove the Duplex Assembly REP 12 1 Turn the Duplex Assembly upside down Release the three locking tabs that secure the cover Figure 1 Remove the Duplex Cover Figure 1 Figure 1 Duplex Cover Replacement 1 Reinstall the components in the reverse order REP 12 4 Duplex PWB Parts List on PL 13 2 Removal CAUTION These components are susceptible to electostatic discharge Observe all ESD procedures to avoid damage WARNING Switch off the power and disconnect the Power Cord 1 Remove the Duplex Assembly REP 12 1 2 Remove the Duplex Cover REP 12 3 3 Carefully release the locking tab and remove the PWB to access the connectors Figure 1 4 Disconnect P J392 P J37 P J38 and P J39 Figure 1 5 Remove the Duplex PWB Figure 1 Figure 1 Duplex PWB Replacement
32. 18 Remove the E ring that secures the Feed Clutch Assembly to the Feeder Figure 2 16 Disconnect P J6St from the clutch Figure 2 17 Remove the Feed Clutch Assembly Figure 2 2125 4041 Replacement 1 2 Reinstall the components in the reverse order Ensure that all alignment pins are properly inserted in the bracket holes before replacing the four screws Repair Adjustment 02 2000 REP 3 6 422 Figure 2 Feed Clutch Assembly DocuPrint N2125 REP 3 7 Feeder Assembly Parts List on PL 3 1 Removal WARNING Switch off the power and disconnect the Power Cord 17 Remove Tray 1 Remove the Left Interface Cover Assembly REP 1 1 Remove the Left Cover REP 1 2 Remove the Front Cover Assembly REP 1 6 Remove the Left Front Cover REP 1 7 Remove the Left Plate Assembly REP 1 11 Remove the Plate Handle REP 1 12 Open Rear Door Remove the Top Cover Assembly REP 1 4 Remove the Right Cover REP 1 5 Remove the LVPS PWB REP 9 5 Remove the Paper Feeder REP 3 1 Remove the Feed Clutch Assembly REP 3 8 Remove the E ring that secures the left shaft of the Feeder Assembly Figure 1 Remove the left bearing from the left shaft of the Feeder Assembly Figure 1 Open the Front Chute Assembly Figure 2 NOTE Caution Don t lose Bias Spring located under the Feeder Assembly Figure 2 Slide the Feeder Assembly to the right and remove Figure 2 2025 4037 Figure 1 Fe
33. 2 and 6 down uiput tray full T5 Empty face down bin Power up printer for message IOT to appear on the LCD Optional output Wray Tul OCT CS Empty OCT bin 4 Release both keys then press key 4 to enter the IOT Diagnostics menu message Enter 99 Paper to MBF 5 WEF is out of paper add ing IOT Diagnostics Mode appears If key 4 is not pressed within 5 seconds of the paper message printer wil go to the normal boot process haa Paper to Way 5 Main Tay i ont of paper 899 5 Press key 1 or 5 to scroll through the Main Menu Component Test and NVM Config paper and Test Print are the choices available Add Paper to vay 2 5 Aux Tray T is out of paper add 6 With Test Print displayed press key 2 or 6 to scroll through the items menu paper 7 Press key 3 or 7 to view the options selected under the item Paper to way 3 cs Aux Tray is out of paper add Test Print items menu offers the following selections paper Input Tray Tray 1 Tray 2 Tray 3 MBF EBF Paper EBF Tray 5 Ada envelopes Envelope Output Tray Standard OCT Feeder plex O0 On Toce marea s Cis Fir Print Pattern Initial Issue DocuPrint N2125 02 2000 617 General Procedures Information GP 2 5 Table 2 IOT Fault Table Condition 7 Message UT Error Code Ration GP 2 6 NVM Config The IOT NVM values hold critical control parameters of the mechanical and electr
34. 2125 4073 Figure 1 Shaft 14 Paper Handler Assembly Figure 2 Gear 14 Paper Handler Assembly 9 2128 4062 Figure 3 Paper Handler Assembly L 2125 4074 Initial Issue DocuPrint N2125 437 Repair Adjustment REP 5 1 REP 5 2 Toner Sensor Parts List on PL 5 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 jemove the Left Interface Cover Assembly REP 1 1 REP Figure 4 Paper Handler Assembly Removal Replacement 1 Reinstall the components in the reverse order Repair Adjustment 0212000 Initial Issue REP 5 1 REP 5 2 438 DocuPrint N2125 Replacement REP 5 3 Registration Actuator 1 Reinstall the components in the reverse order Parts List on PL 5 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left Interface Cover Assembly REP 1 1 Remove the Front Cover Assembly REP 1 6 Remove the Left Front Cover REP 1 7 Remove the MBF Chute Assembly REP 4 1 Remove the Paper Handler Assembly REP 5 1 Open the Upper Chute Figure 1 Disconnect the right hook of the Registration Sensor Spring Figure 1 Move the Actuator to the left until the right end is free Figure 1 0 Remove the Actuator Figure 1 Registration Actuator Replacement 1 Reinstall the components in the reverse order Initial Issue 0212000 Repair Adjustment DocuPrint N2125 439 REP 5 2 REP 5 3
35. 24 160K71840 mb Flash Dimm S 600K79660 Hardware Kit Includes Screw Initial Issue 02 2000 Parts list DocuPrint N2125 516 PL 10 1 PL 11 1 500 Sheet Feeder 1 of 2 Hem 2 3 A re 5 162K48431 MEA 7 160653061 8 9 10 12 13 162K48420 16 802E04930 17 2258910 18 109800448 19 802E04920 20 600K79670 Description Option Feeder Assembly with 2 20 Gear OPT Bracket Assembly Gear OPT Top Plate Option Size Harness Assembly Size Sensor Housing Size Option PWB Spring Lever Shaft CAM SW Cover Size Sensor Size Harness Assembly Clamp Main Frame Assembly Right Side Cover Feeder Assembly Cassette Assembly Left Side Cover Screw quantity 3 21 with 5 13 21 80209980 Size Sensor Housing Assembly with 5 13 S 60079660 Hardware Kit Includes Screws Initial Issue 022000 Parts list DocuPrint N2125 517 PL 11 1 PL 11 2 500 Sheet Feeder 2 of 2 Hem Part Description vith 1 40 NOE Feeder Assembly with 2 40 2 2255001 Roll Assembly with 3 3 12120151 Turn Clutch Assembly 4 ER Spring Extension 5 809E11630 Spring Chute 6 120E16960 Paper Actuator 7 Actuator Support 8 Feeder Frame Assembly 9 Clamp 10 Left Latch Spring Low Paper Actuator P O item 43 12 Low Paper Support Actuator P O item 43 13 190E81970 Low Paper Sensor 14 162K47211 NiSensor
36. 3 8 Erase Cycle The printer immediately interrupts a print cycle whenever the Front or Rear Covers are opened there is a paper jam Tray 1 is removed or the printer power is switched off When you remove the cause of the print cycle interruption such as closing the covers clearing the paper jam reinstalling the Paper or switching on printer power the printer runs an Erase Cycle before continuing with the next print cycle During an Erase Cycle the printer switches on the Main Motor Assembly and the BCR AC and BTR and DB DC voltages The Erase Cycle removes any developed image toner on the drum and any latent image electrical on the drum When the Erase Cycle finishes the printer returns to normal mode and is ready to resume printing General Procedures Information GP 3 7 GP 3 8 02 2000 Initial Issue 636 DocuPrint N2125 GP 3 9 Fan Control GP 3 10 Duplex The printer switches between two Fan speeds The Paper Path for Duplex Printing Figure 1 and Figure 2 During the duplex printing the printer prints the first side of the paper Then the Exit Assembly High Speed when the Main Motor Assembly is on reverses direction and re feeds the paper to the Duplex Assembly The paper is transferred Low Speed when the Main Motor Assembly is off through the Duplex Assembly and fed again to the Paper Handler Assembly When the paper When printer power is switched on or when an Interlock Switch is act
37. 4 of the Service Manual provides information that enables the Service Representative to restore the product to within specification after fault iso lation Section Contents The Section Contents lists in sequence all the items of the section with page references Each entry in the section contents appears exactly as it appears in the manual Repair Procedures This repair subsection contains instructions for removal and replacement tasks A removal and replacement task is included when it is not obvious how components are removed and replaced or when special conditions such as an adjustment must be met during these tasks Step by step removal procedures for a specific component or assembly are provided Numbers in the illustrations refer to steps in the procedure For example if step 3 in a procedure instructed you to remove a screw the screw in the illustration would be labeled 3 Illustrations are used to assist you with the procedures You should refer to the specific Parts List illustration listed under the repair title for locating most components within a procedure NOTE Always reinstall the correct type and size screws Using the wrong screw can damage tapped holes NOTE Do not use excessive force to either remove or installa part Locations such as left right front or rear given in the repairs assume you are facing the printer control panel The Print Cartridge should be removed and stored in a safe plac
38. 6 Laser Assembly REP 7 4 BTR Assembly REP 7 1 Print Engine Controller PWB REP 9 3 LVPS PWB REP 9 5 Print Cartridge Side Guide REP 7 5 2125 3513 Problem solved Figure 1 Spots Actions Check that the paper supply is clean dry and fresh recycled paper may have spots Ensure there are no obstructions in the Laser path Inspect the printer paper path for items such as staples paper clips and paper scraps Check installation of the Print Cartridge Check that the Print Cartridge ground contact points are clean Check that rollers and other components in the paper path are clean and unobstructed Procedure Install a new Print Cartridge Run a Test Print The spots are gone YN Inspect the BTR Assembly for contamination and wear The BTR is free of contamir tion and wear YN Replace the BTR Assembly REP 7 1 Generate Test Print and switch OFF the printer power halfway through the print cycle Carefully remove the Print Cartridge and inspect the toner image on the drum just before the transfer area BTR The image on the drum is completely developed with sharp black easily read areas and no spots YN Goto RAP 43 Initial Issue RUM Image Quality Repair Analysis Procedures DocuPrint 2125 343 IQ RAP 2 IQ RAP 3 k ip WARNING ithe printer has ben sched o tha Fuse ilb hot Open he Rear Cover Remove Fuser Asso tuser der gear manualy and repe ie Han Pk Oper be
39. 6 2 PIJ283 Main Fan REP 9 1 PUJ284 Front Interlock Switch REP 9 9 PUPN1 SVDC Power Supply REP 9 4 Connect the power cord Switch the printer power on and measure the voltages listed in Table 1 on the LVPS Table 1 VPS Red Lead Black Lead Voltage PRET pin Frame Ground r2VDC Past pin 10 Frame Ground 33VDC 2 1 Frame Ground 24 0VDT All voltages are correct YN Replace the LVPS REP 9 5 Switch the printer power off Reconnect P J281 to the LVPS Switch the printer power on and measure the voltages listed in Table 1 All the voltages are correct YN Switch the printer power off Reconnect all the P Js to the LVPS Disconnect the following from the Print Engine Controller PWB PASS OCT PWB REP 10 7 P134 Duplex PWB REP 12 4 3 Size 1 PWB REP 3 13 Pid22 Laser REP 7 4 Pid21 Laser REP 7 4 P1323 Connector PWB REP 9 7 P31 Stack Full Sensor REP 6 6 P1330 Rear Interlock Switch REP 9 10 P J25 Print Cartridge Sensor REP 7 3 P1332 Exit Motor REP 6 5 PJ29 Main Motor REP 8 1 PiJ26 HVPS PWB REP 9 5 PJ27 Fuser Sensors REP 6 2 Switch the printer power on and measure the voltages listed in Table 1 All voltages are correct N Pt Engine one PWB REP 3 Switch the printer power oft Reconnect one of the disconnected plugs Switch the printer power on Measure the voltages listed
40. 6 2 Fuser Assembly Parts List on PL 6 1 Parts List on PL 6 1 Removal Removal WARNING WARNING Switch ott the power and disconnect the Power Cord Switch off the power and disconnect the Power Cord 1 Remove Tray 1 The Fuser may be hot 2 Remove the Left Interface Cover Assembly REP 1 1 1 Open the Rear Cover Assembly 3 Remove the Front Cover Assembly REP 1 6 2 Remove Duplex Assembly if installed 4 Remove the Left Front Cover REP 1 7 3 Remove the two thumb screws that secure the Fuser Assembly to the printer and remove 5 Remove the MBF Chute Assembly REP 4 1 the Fuser Figure 1 6 Remove the Paper Handler Assembly REP 5 1 7 Remove the BTR Assembly REP 7 1 p d 8 Remove the screw that secures the DTS Wire white to the Transport Chute Assembly e Figure 1 9 Remove the screw that secures the TR Wire red to the Transport Chute Assembly Fig 1 10 Use care not to drop high voltage contact springs when chute is removed Figure 1 11 Remove the two screws that secure the Transport Chute Assembly to the printer Figure 1 Remove Assembly 3 8 g 2125 4078 Figure 1 Transport Chute Assembly Figure 1 Fuser Assembly Replacement 1 Reinstall the components in the reverse order Replacement 1 Reinstall the components in the reverse order Initial Issue sazooo Repair Adjustment DocuPrint N2125 443 REP 6 1 REP 6 2 REP 6 3 Fuser Harness Assembly Parts List on PL 6 1 Removal
41. 9 then the Size PWB REP 11 19 for the potion ear assembly Replace the Print Engine Controller PWB REP 9 3 Initial Issue DocuPrint N2125 02 2000 Status Indicator Repair Analysis Procedures 5 245 RAP 6 Remove Output From Std Bin C5 Error code indicates the output tray is full Procedure There is a paper stack in the standard bin actuating the stack full Sensor YN The paper is curled YN Lift and release the Stack Full Actuator a few times The actuator moves freely YN Replace Stack Full Actuator REP 6 8 or Stack Full Sensor REP 6 6 as nec essary Enter diagnostics and select Component Test Scroll to Sensor Input test Manually actuate and deactuate the Stack Full Actuator The number on the LCD incre ments each time you lift and release the actuator the count may have a short delay because of the sensor circuit YN Go to RAP 35 Replace Print Engine Controller PWB REP 9 3 Replace paper in paper tray with fresh dry paper Run test prints The error code reap pears YN Problem solved Enter diagnostics and select Component Test Scroll to Sensor Input test Manually actu ate and deactuate the Stack Full Actuator The number on the LCD increments each time you lift and release the actuator the count may have a short delay because of the sensor circuit YN Go to RAP 35 Replace Print Engine Controller PWB REP 9 3 Remove the paper stack RAP 7 MBF Mis
42. Assy Feeder PWB Tum Roll Assy Low Paper Sensor Actuator Feeder PWB Feeder Assy I Stack Height Sensor No Paper Sensor 604 Figure 4 Major Components of the Option Feeder Assembly General Procedures Information 02 2000 GP 3 13 6 46 Initial Issue DocuPrint N2125 GP 4 1 Menu Maps This chapter shows the menu structure in graphical format The names of menus items and values found in the menu maps contain the English language strings for reference only The order of menus items and values found in the menu maps is the order in which these strings are displayed when scrolling through the menu items The first menu item or value is at the top of the list and the last menu item or value is at the bottom of the list Selecting an Up key causes scrolling from first to last Pressing Down key causes scrolling from last to first Some of the Menus and Items in the following maps are only displayed if an associated option is installed These options entries are flagged with the symbol _ following the entry Job MenuPrint Menu Reset Menu Press Menu Down or Menu Up to enter this menu system and scroll through the menus Scroll through the items with Item Up or Item Down keys Use the Enter Key to accept an item or execute a function such as set a language or print a page or cancel job Job Menu Password Menu Tay Menu PCL Menu System Menu Parallel Menu Serial Me
43. Binary PS System Menu DLC LLC Enable Parallel Menu DLOLLC POL Serial Menu DLCALLC Bin PS USB Menu NetBeui Enable Ethernet Menu NetBeui PDL NetBeui Bin PS AppSocket Enabt Print Menu AppSocket PDL Reset Menu AppSocket Bin PS Etak Enable HTTP Enable IP Address Res Port Timeout Speed Speed is not displayed if he 10 Base 2 option is installed TF Menus marked with C only appear 1 certain options are installed See Menu Maps for details of each menu 17 The Reset Menu is only visible in the menu list if the printer is powered while pressing the Online and Enter ik Value Keys p Postscript BOOTRARP DHCP ETS 3O Half 3OfFull 100 Ha 100 Ful eo Figure 9 Ethernet Menu General Procedures Information GP 4 1 02 2000 6 54 Initial Issue DocuPrint N2125 Token Ring Menu Select the Token Ring Menu using the Menu Up and Menu down Select a variable with Item Up or Item Down keys Use the Value Up or Value Down keys to scroll to the requested value Use Enter key to load value in NVRAM Asterisk indicates factory default value This menu only appears if the Token Ring card is installed item Keys Vale Keys Ce mem Paie nies Tae PCL Menu Post System Menu Parallel Mena Serial Menu USE Menu PostScript Ethernet Menu NetBeui PDL om Token Ring Ment et amp eui Bin PS AppSocket Enable Novell Menu Print Me
44. Clear Paper Path time Close the Cover Go to RAP 7 Tay 1 Wistoed Way TJam EXT ERT Feed dam Paper does at Registration Open Tay 1 Open Tray 1 Sensor position within a specified Open Front Cover lime Clear Paper Path Go to RAP 8 Tray 2 steed wih Way 2 Jam Ez 12 EZT Feed Jam Paper does nat arrive at Regisvation Open Front Cover 550 Sheet Feeder Open Tray 2 Sensor position within a speci ed Open Tray 2 installed as Tray 2 ime Clear Papar Path Go to RAP 8 3 wi Tay 3 Jam EDT EDT Feed Jam Paper does not arrive at Registration Open Tay T 550 Sheet Feeder Open Tray 3 Sensor position within a speci ed Open Front Cover installed as Tray 3 time Clear Paper Path Go to RAP 8 Paper Jam ETT ETT Reg dam Exit Sensor dd not actuate wikin Opem Front Cover Open Front Cover lime after the Registration clutch is Remove Print Cartridge actuated Clear Paper Path Go to RAP 10 Paper Esz ESZ Reg Jam Ragisralion Sensor didnot deaciu Open Front Cover Open Front Cover ate within time after actuation of Reg Remove Print Cartridge stration sensor Clear Paper Path 2 Registration Sensor is actuated at Go to RAP 10 power Ext dam ET EEO Ext Paper Teaves Exit Sensor early Open Rear Cover Open Rear Cover Clear Paper Path Go to RAP 11 Ext dam Ext Tarr Erz T Paper Tate off ENT Sensor Open Rear Cover Open Rear Cover 2 Exit Sensor on at power up Clear Papar Path G
45. Cover Lower Duplex Chute Assembly S 600K79660 Hardware Kit Includes Screw pum Parsist DocuPrint N2125 sn PL 13 1 PL 13 2 Duplex 2 of 2 Hem Description 1 with 2 18 1 He Lower Duplex Chule Assembly with 2 18 2 59K12151 Duplex Roll Assembly 2 3 3E47580 Duplex Stopper Belt Duplex Gear 17 Pulley 5 Duplex Bearing B Duplex Gear 18 7 Duplex Gear 17 39 8 127K24800 Motor Assembly 4 9 423015455 Synchronous Belt d 10 Lower Duplex Chute 11 Duplex Latch 12 Duplex Latch Spring UE 13 Duplex Sensor Harness 14 130 1970 Face Up Tray Sensor 15 16053051 Duplex PWB E 16 Duplex Cover 17 180K83310 Duplex Transport Sensor 7 18 Duplex Handle Label S 600K79660 Hardware Kit Includes Screw 7 13 n 4 10 5 17 15 16 sore Initial Issue 02 2000 Parts list DocuPrint N2125 522 PL 13 2 PL 14 1 Offset Catch Tray 1 of 2 Hem Description ih 2 10 1 E Offset Catch Tray Assembly with 2 10 2 50K38631 Exit Tray Assembly 3 nM Tray Spring 4 50EB9160 Exit Tray 5 12E09550 Weight Link 6 802E02773 Rear Cover 7 802E02755 Cover 8 54K14842 Inner Exit Chute Assembly B Hook Cover 10 Lower Cover s 600K79660 Hardware Kit Includes Screw Initial Issue 02 2000 Parts list DocuPrint 2125 523 PL 14 1 PL 14 2 Offset Catch Tray 2 of 2 Hem 1 2 3 4 160K47332 Be uu
46. Detak Saw PRE RVPS output to the Pressure Rol Wiring Da 02 2000 Initia Issue Base Engine 732 DocuPrint N2125 Print Engine Controller PWB lt gt Fuser Assembly Figure 10 Table 6 Print Engine Controller PWS Fiber fase Pilar Puer Act P1275 1 2 Exit Sensor a P3274 7010 Figure 10 Print Engine Controller PWB lt gt Fuser Assembly Print Engine Controller PWB lt gt Fuser Assembly Table 6 shows the signal names for the Print Engine Controller PWB lt gt Fuser Assembly path Table 6 Signal Names Signal Name Description TEXT Signal from the Ext Sensor This signal is Low OV when the Exit Sensor is activated and High 3 3V when deactuated s Signal rom ihe Temperature Sensor which monitors the Fuser Heat Fal temperature Analog Initial Issue 272000 Wiring Data DocuPrint N2125 743 Base Engine Print Engine Controller PWB lt gt Exit Sensor and Rear Interlock Switch Figure 11 Table 7 Print Engine pon PASS Controller PWB FST Stack 1 Ful 2 se Sensor 3 33V 24V Exit MOT in 24V Exit MOT Fear Interlock Switch 97 ai ra 2 701 ar Interlock Switch Figure 11 Print Engine Controller PWB lt gt Exit Sensor lt gt Print Engine Controller PWB lt gt
47. EP Cartridge Top Guide Assembly Replacement 1 Reinstall the components in the reverse order Initial Issue pum Repair Adjustment DocuPrint 2125 451 7 1 7 2 REP 7 3 Print Cartridge Sensor Assembly 12 Remove the Sensor Assembly Figure 1 Parts List on PL 8 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left Interface Cover Assembly REP 1 2 Remove the Front Cover Assembly REP 1 6 Remove the Left Front Cover REP 1 7 Remove the Top Cover Assembly REP 1 4 Remove the Left Plate Assembly REP 1 11 Open the Rear Cover Remove the Print Cartridge Top Guide Assembly REP 7 3 Release the harness of the Print Cartridge Sensor Assembly from the three clamps securing it to the Print Cartridge Top Guide Assembly Figure 1 10 With small screwdriver pry the right shaft free of the assembly Figure 1 11 With a small screwdriver pry the left shaft free of the assembly Remove the Sensor Assembly Figure 1 Figure 1 Print Cartridge Sensor Assembly Replacement 1 Reinstall the components in the reverse order Repair Adjustment 0212000 il Issue REP 7 3 452 DocuPrint N2125 REP 7 4 Laser Assembly Parts List on PL 8 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove the Front Cover Assembly REP 1 6 Remove the Left Front Cover REP 1 7 Open the Rear Cover Remove the Top Cover Assem
48. Feeder Connector Measure resistance between pins 1 and 4 The resistance reading is between 110 120 ohms YN Rete mo oor sant REP 24 Replace Paper Feeder Connector PL 2 2 Cheek the Paper Tray for damage contamination binding misalignment or obstruction All components are clean connected properly aligned properly and without damage YN secs Replace the Motor Assembly REP 2 4 RAP 38 Registration Clutch Procedure Enter Diagnostics and select Component Test Scroll to Confirm Reg Clutch and press Enter You can hear the Registration Clutch energize YN Switch the printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Disconnect P J23 on the Print Engine Con troller PWB Measure the resistance between pins 6 and 9 on the disconnected plug Remove the Front Cover REP 1 6 and the Left Front Cover REP 1 7 Disconnect P143 from the Connector PWB Measure the resistance between pins 1 and 2 on the disconnected plug The resistance is approximately 145 to 165 ohms YN Replace the Registration Clutch REP 5 5 Replace the Connector PWB REP 9 7 Reconnect PLJ23 Switch the printer power on Check the voltage between P J23 pin 6 frame ground The voltage is 24VDC YON ee tra Pir Engine Gone Pt REP 23 Enter Diagnostics and select Component Test Scroll to Confirm Reg Clutch Check the voltage between P J23 pin
49. Figure 2 Remove the belts Figure 1 Pinch Roll 10 2125 273 Figure 2 Feed Belts Replacement Reinstall the components in the reverse order Initial Issue DocuPrint N2125 02 2000 113 Repair Adjustment REP 13 17 Repair Adjustment 02 2000 Initial issue REP 13 17 14 DocuPrint N2125 ADJ 1 1 Registration 6 Press Enter to save the setting Purpose 7 Soci Tati Suet Pr Par a pe ig feasure the distance from the lead edge of the paper to the lead edge of the image adjust the registration in the scan direction and the process direction rid DOR the oni th tat ace of te tal sige othe inde B Figure 1 These two measurements should be within 1mm To set D fauit Tray 9 Measure the distance from the left edge of the paper to the left edge of the image and 1 Enter Diagnostics and select Test Print measure the distance from the right edge of the paper to the right edge of the Image D 2 Scroll to Input Tray Figure 1 These two measurements should be within 1mm 3 Select the tray that you wish to feed trom 10 Repeat steps 1 through 9 until equal lead edge to trail edge process direction and side d ces to side scan direction measurements are achieved 5 Exit Diagnostics Check 1 Ensure that Edge to Ed
50. Final Actions Section 2 Status Indicator Repair Analysis Procedures RAPS Section 3 Image Quali Repair Analysis Procedures IQ RAPS Section 4 Repair Adjustment REPs Section 5 Parts Lists PLs Section 6 General Procedures Section 7 Wiring All service calls start with Initial Actions and all service calls end with Final Actions Initial Actions Corrective Actions Parts List RAPS Repair Procedures Wiring Data General Procedures Image Quality Correct Any Final Actions Secondary Problems Figure 1 Call Flow Diagram Service Call Procedures 1 2 02 2000 14 DocuPrint N2125 1 3 Initial Actions Initial Actions are used to gather information from the operator concerning problems at the local machine Make note of symptoms error messages error codes or other information con cerning the problem that the operator may provide This information may help identity an inter mittent or unusual problem Procedure 1 Ensure that the power cord is connected to the wall outlet and to the machine 2 Check for paper or other objects in the paper path 3 Remove all paper from the output tray s 4 The Rear Cover and Front Cover are closed 5 paper is within specification and is loaded correctly in the Paper Tray s 6 Askthe operator to describe or i possible demonstrate the problem
51. Gears Gear Tum Fol Assy OFT Gear Food Pol Ads m OPT Gear Far 0 Roll Assy Turn Clutch Assy xS Gears Gears OPT Gear 7 E OPT 1 Goar 7 P p T Turn Clutch Assy baci Figure 2 The Option Feeder Paper Path Gears Gear 4 Figure 3 Option Feeder Drive Flow Function of Major Components Figure 4 shows the major components of the Option Feeder Assembly Clutch Assembly Consists of a gear and an electric clutch located on the end of the Turn Roll Assembly shaft This clutch controls the transmission of the drive power from Gear 4 of the Standard Feeder Assembly to the Turn Roll Assembly by turning on and off the Turn Roll clutch When this clutch is activated the drive power is transmitted to the Turn Roll Assembly through the Gear OPT to the gear ofthe Clutch Assembly Feed initial Issue 022000 General Procedures Information DocuPrint 2125 645 GP 3 12 GP 3 13 Feed Clutch Assembly Consists of a gear and a electric clutch located on the end of the Feeder Assembly shaft This clutch controls the transmission of the drive power from Gear 3 through the Turn Clutch Assembly to the Roll Assembly of the Feeder Assembly by turning on and off the Feed clutch When this clutch is activated the drive power is transmitted to the Feeder Assembly Feeder Assembly Consists of the Nudger Support Assembly Shaft Feed and Roll Assembly The task of this Assembly is
52. LOWPAPS Signal fom the Law Paper Sensor 3 equipped on the 550 Shear Feeder on the Feeder PWB 3 This signal is Low when the Low Paper Sensor 3 is activated Signal Levels High 33V Low 0V LOW PAP Signal from ihe Low Paper Sensor 2 equipped on the 580 Shear Feeder 2 This signal is Low when the Low Paper Sensor 2 is activated Signal Levels High 3 3V Low OV FEDT Feed control signal or the Feeder 1 The Feed Cluich Assembly and the Hur Clutch Assembly are activated when this signal goes Low Signal Levels High 33V Low 0V TNO PAP T Signal rom the No Paper 1 Sensor equipped an the Feeder Tis signa is Low when the No Paper 1 Sensor is activated Signal Levels High 33V Low ov Wiring Data 02 2000 Initial Issue Base Engine DocuPrint N2125 Print Engine Controller PWB lt gt Main Motor Assembly Exit Motor Table 10 Signal Names Assembly and Print Cartridge Sensor Assembly Figure 13 Table 10 Signal Name Description EXIT XR Phase XA dive signal Tor he stepping motor LOW when driving and High when not driving Print Engine x Controler PWB gl j Signal Levels High 24V Low ov a EXITE Phase B drive signal Tor the stepping motor LOW when driving and High aee R Sensor Assy when not driving 1 Signal Levels High 24V Low 0V pug TEXTA Phase A drive signal Tor he stepping matar LOW when
53. List on PL 1 3 Removal WARNING Switch off the power and disconnect the Power Cord 1 Open the Rear Cover Assembly by squeezing the clips 2 Lift the lead edge of the locking tab to release and remove the Stopper from the cover Figure 1 3 Slide the Pivot Stopper that secures the left Rear Cover Assembly Figure 2 4 Slide the Rear Cover Assembly to the right as viewed from the rear Figure 2 Figure 1 Stopper Figure 2 Rear Cover Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 0212000 Repair Adjustment 49 REP 1 8 REP 1 9 Rear Face Up Cover Assembly Parts List on PL 1 3 Removal WARNING Switch off the power and disconnect the Power Cord 1 Open the Rear Cover Assembly REP 1 8 2 Release the Pivot Arm from the Rear Face Up Cover Assembly Figure 1 The art shows the cover removed for clarity 3 Close the Rear Cover Assembly 4 Open the Rear Face Up Cover Assembly 5 Push the right hinge pin to the left as viewed from the rear unti he hinge pin is free of the Rear Cover 6 Remove the Rear Face Up Cover Assembly Figure 1 Rear Face Up Cover Assembly Replacement 1 Reinstall the components in the reverse order REP 1 10 Interlock Cover Parts List on PL 7 1 Removal WARNING Switch off the power and disconnect the Power Cord 7 Remove Rear Cover Assembly REP 1 8 2 Remove the one screw that secures the St
54. Offset Catch Tray 728 DocuPrint N2125 PIJ Table Table 1 OCT P J Table CA gor Connector Coordinate Description Puzo JET the OCT Harness Assembly Unit To the Printer ASSET Print Engine Controller PWB PUZS E7 Connects the OCT Harness Assembly Unit fo the OCT PWE 2 Pazo Es Connects the Matar Drive Assembly to the OCT PWB PUZZ E amp Connects the Offset Motor Assembly to the OCT PWB PUZM E7 Connects the OCT Harness Assembly SNR To the OCT PWS PUZS Es Connects the OCT Harness Assembly SNR To the Stack Full Sen sor E 25 27 Paz 67 Connects the OCT Harness Assembly SNR to the OCT Home Ser sor s 23 Paar HT Connects the OCT Harness Assembly SNR To the OCT Exit Sensor Assembly 210 FUE iL Gonnecis the OCT Harness Assembly SNR ha Direction Soie W noid 224 7 gt 7 Pid Map a d a k 7004 Figure 1 OCT Pi Initial Issue 202000 Wiring Data DocuPrint N2125 729 Offset Catch Tray Block Diagram Print Engine Controller PWB lt gt OCT PWB Figure 3 Table 2 si ey E g rach ve E S E SE dus zu m VES mie Figuro 2 OCT Block Diagram Sebo TONM 10V Figure 3 Print Engine Controller PWB lt gt OCT PWB Wiring Data 02
55. PL 10 1 Removal CAUTION These components are susceptible to electrostatic discharge Observe all ESD procedures to avoid damage WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left Interface Cover Assembly REP 1 1 Remove the Lett Cover REP 1 2 4 Remove the Front Cover Assembly REP 1 6 5 Remove the Left Front Cover REP 1 7 6 Remove the Top Cover Assembly REP 1 4 7 Remove the Rear Cover Assembly REP 1 8 8 Remove the Lett Plate Assembly REP 1 11 9 Remove the Plate Handle REP 1 12 10 Remove the MBF Chute Assembly REP 4 1 11 Remove the Paper Handler Assembly REP 5 1 12 Remove the Transport Chute Assembly REP 6 1 13 Remove the Fuser Assembly REP 6 2 14 Remove the Print Cartridge Top Guide Assembly REP 7 2 15 Remove the Main Motor Assembly REP 8 1 16 Remove the Drive Gear Assembly REP 8 2 17 Remove the Print Engine Controller PWB REP 9 3 18 Remove the LVPS PWB REP 9 5 18 Remove the two screws that secure the Duplex Harness Assembly to the printer Figure J Repair Adjustment 02 2000 REP 9 11 REP 9 12 464 Initial Issue DocuPrint N2125 20 Remove the Duplex Harness Assembly Figure 1 2125 4108 Figure 1 Duplex Harness Assembly Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 02 2000 465 Repair Adjustment REP 9 12 Repair Adjustment 02 2000 Initial issue
56. PL 5 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left Interface Cover Assembly REP 1 1 3 Remove the Front Cover Assembly REP 1 6 4 Remove the Left Front Cover REP 1 7 5 Remove the MBF Chute Assembly REP 4 1 6 Remove the Paper Handler Assembly REP 5 1 7 Remove the Registration Clutch REP 5 5 8 Remove the two E rings that secure the two Registration Gears Figure 1 9 Remove the E ring from the left end of the Metal Registration Shaft Figure 1 10 Release the two registration springs from the Metal Registration Roll Figure 2 11 Squeeze and hold the Upper Chute and Inlet Chute together Align the hole in the chute with the Boss on the Left Bearing Remove the Left Bearing from the Metal Registration Roll Figure 1 12 Lift ihe Torsion Spring and slide the Right Bearing out Squeeze and hold the Upper Chute and Inlet Chute together and align the hole in the chute with the Boss on the Right Bearing Remove the Right Bearing Figure 1 13 Slide the Metal Registration Shaft to the right and remove the assembly Figure 1 Figure 1 Registration Roll 14 Remove the left and right bearings from the Rubber Registration Roll Figure 3 18 Lift the right end of the Rubber Registration Roll and remove Figure 3 Initial Issue 0212000 Repair Adjustment DocuPrint N2125 441 REP 5 6 REP 6 1 Transport Chute Assembly REP
57. PWB Replacement 1 Reinstall the components in the reverse order REP 13 4 Retard Roll Assembly Parts List on PL 12 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the Envelope Feeder from the printer 2 Remove the Bottom Cover REP 13 1 3 Remove the Top Chute REP 13 2 4 Carefully pry up on the two hinge pins and remove the Retard Roll Assembly Figure 1 205 4251 Figure 1 Retard Roll Assembly Replacement 1 Reinstall the components in the reverse order Repair Adjustment REP 13 3 REP 13 4 02 2000 4 104 Initial Issue DocuPrint N2125 REP 13 5 Exit Pinch Roll REP 13 6 Exit Sensor Assembly Parts List on PL 12 1 Parts List on PL 12 1 Removal Removal WARNING WARNING Switch off the power and disconnect the Power Cord Switch off the power and disconnect the Power Cord Remove the Envelope Feeder from the printer Remove the Bottom Cover REP 13 1 Remove the Top Chute REP 13 2 Release the four locking tabs and remove the Exit Sensor Figure 1 1 Remove the Envelope Feeder from the printer Remove the Bottom Cover REP 13 1 Remove the Top Chute REP 13 2 Carefully pry up on either end of the Pinch Roll until it is free of the mounting Figure 1 Remove the Exit Pinch Roll Figure 1 2025 4263 2125 4225 iq FS Figure 1 Exit Figure 1 Exit Sensor Assembly Replacement Replacement 1 Reinstall the components in the reverse ord
58. Peku 26 ea MBF No Paper Harness Assembly 045 0451 106800 Pak Up Pad som With 9 10 Sow f Ls pom Eum DocuPrint N2125 5 10 4 1 PL 5 1 Paper Handler Assembly Hem Part 1 2 3 4 54k14980 5 fee 7 s9k11910 8 9 10 120 13331 11 80919721 120 180E81970 Ens 14 9E79120 15 7 54671 16 754681 7 18 19 12185820 20 21 22 23 24 25 26 27 28 16247011 35 7 54650 36 809E19030 600K79380 Description Toner Sensor Toner Holder Sensor Toner Spring Sensor Paper Handler Assembly with 2 5 31 Registration Roll Metal Upper Chute Assembly Registration Roll Rubber Chute Inlet Ground Spring Bottom Registration Actuator Registration Sensor Spring Registration Sensor Metal Bearing Registration Spring Right Registration Gear Metal Registration Gear Rubber Right Bearing Rubber Left Bearing Rubber Registration Clutch Upper Chute Bottom Ground Spring Right Ground Spring Center Ground Screw Left Spring Resist Lower Chute Bottom CST Chute Registration Harness Assembly 943 4431 432 Torsion Spring Lever Handle Right Metal Bearing Toner Sensor Harness Assembly 42 9420 TNS Cushion Shaft 14 Gear 14 Registration Spring Left Toner Sensor Kit with 1 3 32 amp 33 S 600K79660 Hardware Kit Includes Screw Initial Issue 02 2000 Parts list DocuPrint 2125 5
59. REP 11 19 If the problem persists replace the Tray 2 Feeder PWB REP 11 9 The printer has two optional 550 Sheet Feeders installed YN Replace the Printer Engine Controller PWB REP 8 3 On the Print Engine Controller PWB check the voltage between P J33 pin 14 and frame ground The voltage is 24 0VDC Remove Paper Tray 3 Check the voltage between the bottom terminal on the mating con nector on the Tray 3 feeder and frame ground The voltage is 24 0VDC YN Replace the Tray Size PWB REP 11 19 It the problem persists replace the Tray Feeder PWB REP 11 9 Check the resistance between the bottom and top terminals of the mating connector on paper tray 3 There is continuity between the two pins Replace the paper tray mating connector PL 2 2 Check that the paper tray mating connector and the feeder mating connector are properly aligned when the tray is inserted into the feeder The mating connectors are properly connected when the paper tray is inserted YN Repair or replace camponents as necessary Replace the Tray 3 Size PWB REP 11 19 If the problem persists replace the Tray 3 Feeder PWB REP 11 9 Replace the Print Engine Controller PWB REP 9 3 Status Indicator Repair Analysis Procedures 0212000 Initial Issue RAP 54 2 46 DocuPrint N2125 RAP 55 Duplex Unit Fail or Removed E9 1 Duplex Unit was removed while power was Procedure Switch the printer power
60. Registration Sensor is actuated WS EP Cartridge T Print Cartridge is not installed installe Print Cartridge or Print Cartridge 2 The installed Print Cartridge is not replace with the correct Print the correct one Cartridge Go to RAP 13 Toner Low No Fault Entry J5 Toner Low Toner Low is detected affer 10 prints Heplace Print Cartridge while Toner Sensor ison Go to RAP 14 Memory Faire ESSM NA Controller memory has failed 32 meg Power OTO Power on board Go to RAP 9 INV Memory Fail ESSN NA Controller NVM Faure Power OffOn Power Off On Go to Flash Error FFT NA Flash Memory error ound Flash Flash memory format Format Flash memory format required required Go to RAP s Motor Failure Ur UT Motor Fai Motor Fail signal is declared 1 3 sec Power Off and Power Otton onds after start of Main Motor Go to RAP 16 Laser Failure 02 U2 ROS Fail Taser Signal intervals are longer Power Off and On Power Otton than the Ready time interval 20 sec Go to RAP 17 nds after the start of Laser warm up 2 The laser power does not reach the value in NVM when the laser diode is switched on after the start of Laser warm up 3 Laser signal intervals become longer than the Fail time interval after Laser warm up is completed Fuser Failure U7 Fuser Fall T Fuser temperature drops below the Power Off and On Power Otton set temperature after the Fuser warm Go to RAP 18 up is complete 2 Fuser warm up
61. Replace the Print Engine Controller PWB REP voltage is Replace the MBF No Paper Sensor REP 4 8 Replace the Connector PWB REP 9 7 Replace the Print Engine Controller PWB REP It appears that the MBF No Paper Sensor is working correctly If a problem persists replace the Print Engine Controller PWB REP 9 3 RAP 34 Tray 1 No Paper Sensor Procedure Remove Tray 1 Enter Diagnostics and select Component Test Scroll to Sensor Input test and press Enter Actuate and deactuate the Tray 1 No Paper Sensor Actuator The number on the LCD increments each time you press and release the actuator YN Visually inspect the Tray 1 No Paper Sensor Actuator The actuator moves freely an in good condition not broken or damaged YN Replace the Tray 1 No Paper Sensor Actuator REP 3 9 Switch the printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Switch the printer power on On the Print Engine Controller PWB measure the voltage between P J33 pin 2 and frame ground as you actuate and deactuate the No paper Sensor The voltage is 3 3VDC with the sen deactuated and 0 0VDC with the sensor actuated YN Check the voltage between P J33 pin 8 and frame ground The voltage 3 3VDC YN Replace the Print Engine Controller PWB REP 9 3 Replace the Tray 1 Feeder PWB REP 3 9 Replace the Print Engine Controller PWB REP it appe
62. Saddle H Clamp Insulator Plate Plate Handle Feeder Harness Assembly 233 3331 Shaft Size Sensor Actuators Cover Size Sensor Spring CAM Lever CAM Tray 1 Size PWB Size Harness Assembly 151 452 Size Sensor Housing Size Sensor 1 Kit with 13 21 5 800079880 Hardware Kit Includes Screw 22 with 19 21 Initial Issue 0202000 Parts list DocuPrint N2125 545 PL 9 1 Frame amp Size Sensor PL 10 1 Electrical Hem Part Description 1 162K47201 System Controller Harness Assembly 287 282 J288 2 16085650 System Controller PWB Network 160665940 System Controller PWB Non network as Back Panel 16249271 Harness Assembly J35 P351 5 Adapter H Power Cord 7 110K08571 Rear Interlock Switch Assembly E Ges AC Wire Assembly J285 9 162K46991 Duplex Harness Assembly J34 P341 10 16246941 Connector Harness Assembly J23 3231 11 160K52761 Connector PWB 12 110K08561 Front Interlock Switch Assembly 13 16052414 Print Engine Controller PWB 14 10515407 5VDC PWB 15 16246972 LVPS Harness Assembly J28 J218 16 10514931 LVPS PWB 120V 10515411 PWB 230V 1711093711 Main Switch 18 162K46962 Harness Assembly 19 10514954 HVPS PWB EE HVPS Housing 21 160K71820 Serial Card 160K71530 10 Base 2 Network Card 160K71540 Token Ring Card 22 Hard Disk Drive 23 7330014695 16 mb Dimm 733W14696 32 mb Dimm 733W14697 64 mb Dimm
63. Sensor Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 47 Repair Adjustment REP 10 18 Repair Adjustment 022000 Initial issue REP 10 18 478 DocuPrint N2125 REP 11 1 Printer Removal Parts List on PL 11 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray from the Feeder 2 Remove the three screws that secure the printer to the 550 Sheet Feeder Remove the printer Figure 1 3 Lift the printer amp remove the 550 Sheet Feeder 2125 4197 Figure 1 Optional Feeder Assembly Replacement 1 Reinstall the components in the reverse order REP 11 2 550 Sheet Feeder Right Cover Parts List on PL 11 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the printer from the 550 Sheet Feeder REP 11 1 2 Remove Tray from Feeder 3 Remove the four screws that secure the right cover Figure 1 4 Lit slightly to remove the cover Figure 1 2025 4205 Figure 1 Right Cover Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 02 2000 479 REP 11 1 REP 11 2 Repair Adjustment REP 11 3 550 Sheet Feeder Left Cover Parts List on PL 11 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the printer from the 550 Sheet Feeder REP 11 1 2 Remove the Tray from the feeder 3 Remove the four screws that secure the Lett Cover to t
64. Sheet Paper Feeder Duplex Assembly Wiring Diagrams and Signal Information This section of the manual contains a Block Diagram for the N2125 Duplex Feeder Assembly The Block Diagram shows the interconnections of the major subsystems within the printer The remainder of this section divides the Block Diagram into individual block diagrams to better ilustrate the electrical relationships between components and assemblies within the Duplex Feeder Assembly Each wire in the block diagram is tagged with a signal and each wire is terminated at both ends with a pin number Block Diagram 1 Duplex Assembly Block Diagram 2 Print Engine Controller PWB lt gt Duplex PWB Figure 3 Table 2 3 Duplex PWB lt gt Sensor Photo IN H L Duplex Sensor Assembly and Duplex Motor Assembly Figure 4 Location of P J Connectors Use the P J table Table 1 and the PIJ Map Figure 1 to locate a specific P J connector within the Feeder and Cassette Locate the connector number in the first column of the table Locate the corresponding coordinates in the second column such as I7 or J7 Goto the map Cross reference the letter and number of the P J coordinates with the letters and numbers on the map The PA connector is located within the area where the coordinates cross Wiring Data Duplex Assembly 724 Initial Issue DocuPrint N2125 PIJ Table Table
65. Table 3 Signal Names OCT PWB lt gt Drive Motor Assembly and Offset Motor Assembly Fig Signal Namie Descrpion ure 5 Table 4 TOCT EXT sgnal fom the OCT Exit Sensor Assembly This signal Wat turns High when the paper is passing on this sensor and turns Low again when the end of the paper passes over signal Levels High 33 Low ov DIREXT SOL ON Control signal for the Direction Solenoid The solenoid Is actuated when puzel this signal is Low and holds the state of actuation unti the signal DIRECT Offset Motor Assy SOL OFF is issued by the OCT PWS 24V B COM 1 Signal Levels High 33V Low OV DIRECTSOL Conira signal or The Direction Solenoid This signa cuts of the power i 4 circuit ofthe solenoid 5 6 Signal Levels High 33 Low OV Drve Motor Assy i 2 3 4 5 6 me Figure 5 OCT PWB lt gt Drive Motor Assembly and Offset Motor Assembly Table 4 shows the signal names for the OCT PWB lt gt Drive Motor Assembly and Offset Motor Assembly path Table 4 Signal Names Signal Name Description 5 Motor contro signal Signal Pulse Nolorconrorsgnar Signat Pulse 7 Motor conirol signal Signat Pulse Wiring Data pm Initial Issue Offset Catch Tray 732 DocuPrint N2125 Table 4 Signal Names Envelope Feeder Kane Leal Wiring Diagrams a
66. and disconnect the Power Cord 1 Squeeze the cover release and open the Rear Cover Assembly 2 Push the two locking tabs at the rear of Option Cover Figure 1 3 Litt and slide the Option Cover to the rear and remove Figure 1 2128 4004 Figure 1 Option Cover Replacement 1 Reinstall the components in the reverse order REP 1 4 Top Cover Assembly Parts List on PL 1 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Front Cover Assembly REP 1 6 Remove the Left Front Cover REP 1 7 Open the Rear Cover Assembly Remove the four screws securing the Top Cover Assembly Figure 1 Raising the Top Cover Assembly disconnect P J412 connector on the back side of the Control Panel Assembly Figure 1 7 Remove the Top Cover Assembly Figure 1 2125 4005 Figure 1 Top Cover Assembly Replacement 1 Reinstall the components in the reverse order Repair Adjustment REP 1 3 REP 1 4 0212000 Initial Issue DocuPrint N2125 REP 1 5 Right Cover B Remove the Right Cover Figure 1 Parts List on PL 1 1 Removal WARNING Switch oft the power and disconnect the Power Cord Remove Tray 1 Remove the Front Cover Assembly REP 1 6 Remove the Left Front Cover REP 1 7 Open the Rear Cover Assembly Remove the Top Cover Assembly REP 1 4 Remove the four screws securing the Right Cover Figure 1 NOTE On printers without an optional feeder slide the right edg
67. and options motors clutches etc Table 1 summarizes the operation of the Control Panel Keys for entering IOT diagnostics Table 1 Entering IOT Diagnostics Key Combination Key Number Action Tem Up tem Down 2 6 While turning on power press and hold unti message 1 is displayed on the LCD it takes approximately 30 seconds During this time the following occurs Switch printer power on Squares ight H Boot Code Version L 10T displayed Onine FomFeed Faut Dale Enier 7 Anter TOT is displayed the ENTER Key must be pressed within 5 to enter Diagnostics Ifthe ENTER key is not pressed within 5 sec printer wil continue its normal power up Q Q Q x5 ane Med sudo The IOT diagnostic menu has the following selections Test Print NVM Config 4 A Component Test Enter Table 2 summarizes the operation of the Control Panel keys in IOT diagnostic main menu Table 2107 Diagnostic Mode Key Table Key Combination Key Number Action Menu Up Menu Down Tors scroll through the diagnostic menu Print Figure 1 Keys Pad and LED Layout i Menu NVM Menu Component Menu ng 7 Stops routing TF process and clears error mas Press and hold for 1 second ages from Control Panel General Procedures Information pom Initial Issue GP 2 3 GP 2 4 616 DocuPrint N2125 GP 2 5 Test Print 3 The IOT pattern is stored in the Print
68. been developed on the current print Load Edge N2125 3319 Figure 1 Residual Image Initial Actions Inspect the printer paper path for items such as staples paper clips and paper scraps Check installation of the Print Cartridge Check that the Print Cartridge ground contact points are clean Verify the fuser temperature NVM Procedure Replace paper with fresh dry paper Run a test print Residual images stil appear YN Problem solved Install a new Print Cartridge Run a test print The residus YN Problem solved images still appear Inspect the BTR Assembly for contamination and wear The BTR is free of contamination and wear YN Replace the BTR Assembly REP 7 1 Initial Issue 02 2000 DocuPrint N2125 349 Image Quality Repair Analysis Procedures IQ RAP 8 IQ RAP 9 A WARNING It the printer has been switched on the Fuser will be hot Open the Rear Cover Remove the Fuser Assembly Rotate the fuser idler gear manually and inspect the Heat Roll Open the fuser jam access cover Rotate the fuser idler gear manually and inspect the Pressure Roll The Heat Roll and the Pressure Roll are free of scratches contamination YN Clean or replace the Fuser Assembly REP 6 2 Replace the following in order until the defective component is found BTR Assembly REP 7 1 Fuser Assembly REP 6 2 PWB REP 9 6 Print Cartridge Side Guide REP 7 5 IQ RAP 10 Black Pr
69. detects that an OCT jam has occurred E6 2 Jam One of the conditions of the E6 2 jam is the same as the condition of the E6 1 jam Another is the signal of the OCT Exit Sensor Assembly turns Low during the warming up GP 3 13 Option Feeder Assembly The Paper Path for the Option Feeder Assembly Paper that is fed from the Optional Feeder Assembly follows the path shown in Figure 1 Spina Foe 555 Twe wee ene Ten Rol Tena pd at Rasta Rl Faser Edt assent d cn x Assembly Output Tray oct Figure 1 The Option Feeder Paper Path General Procedures Information GP 3 12 GP 3 13 02 2000 644 Figure 2 shows a cut off view of the printer to better illustrate the components involved in the Option Feeder Assembly paper path Drive Flow As shown in Figure 3 the mechanical power generated by the Main Motor Assembly is trans mitted to the gears of the Option Feeder Assembly Ma 3 Rol Ass i Cartage E57 ich Fi a Main Motor Assy id 2 Pal Aem B M2 Rol Drum Pinch Roll Meta Pog Rat Cleaning Blade rubber Reg Rat Pinch Pot MBF Rol Assy Mid 1 Poll Ass Heat Fol Pressure Roll ie Tum Rot Assy ee Turn Cute Assy Rom tek ney Main Gear Ass Gear 1 Retard Nudger Roll Roll Assy Feed Clutch Assy FEE
70. driving and High SIAR A when not driving BETA hi 28i is Ext Motor Assy 32 Signal Levels Hg ENT MOT DESI Signal Levels Figi VATA Main motor monitor signal Goes Low when the rotation oF The Main P Motor Assembly is abnormal eB igna Levels High 33V Low tV HOT ON Main molor control signal To turn the Main Motor Assembly on and a Main Motor Assy 4B Signal Levels High 33V Low 0V BE 22 1B 7013 Figure 13 Print Engine Controller PWB lt gt Main Motor Assembly Exit Motor Assembly Print Cartridge Sensor Assembly Print Engine Controller PWB lt gt Main Motor Assembly Exit Motor Assembly and Print Car ridge Sensor Assembly Table 10 shows the signal names for the Print Engine Controller PWB lt gt Main Motor Assem bly Exit Motor Assembly and Print Cartridge Sensor Assembly path Table 10 Signal Names Signal Name Descrpion FBV power Source to the Laser Diode OV when the Print Cariridge Is ot in place High 5V Low OV Signal which activates the SVLD GNU OV when the Print Carnage Ts notin place High SV Low OV TEXT XE Phase XB drive signal for the stepping molor LOW when driving and High when nat driving Signal Levels High 24V Low ov Initial Issue 272000 Wiring Data DocuPrint N2125 TAT Base Engine Print Engine Controller PWB lt gt Connector PWB lt gt Paper Set Sen sor Registration Sensor Registration Clutch Toner Sensor Pick Up Sole
71. in Table i All the voltages are correct YN eze he component as oes to tha Pi Eng Cone PWR Repeat the step with the next disconnected plug Switch the printer power off Reconnect one of the disconnected plugs Switch the printer power on Measure the voltages listed in Table 1 All the voltages are correct YON ee compare just crit Repeat the step with the next disconnected plug Status Indicator Repair Analysis Procedures RAP 28 02 2000 230 DocuPrint N2125 Initial Issue RAP 29 Main Motor Assembly Procedure Enter Diagnostics and select the Component Test Scroll to Main Motor Operation and press Enter The Main Motor rotates oc Pet Engine EP 2 Enter Diagnostics and select the Component Test Scroll to Main Motor Operation On the Print Engine Controller PWB measure the voltage between P J29 pin 7 and frame ground Press the Enter key The voltage drops from 5 0 VDC to 0 0 VDC YN YN Switch the printer power off Remove the Left Interface Cover 1 1 Left Cover 1 2 and Replace the Print Engine Controller PWB REP 9 5 Left Plato Assembly 1 11 Ensure the Rear Cover is closed Switch the printer power on Measure the voltages listed in Table 1 on the Main Motor Assembly Replace the Main Motor Assembly REP 8 1 Table 1 Main Motor Harness Problem solved return to Initial Actions and continue From To Voltage
72. insert and remove the Print Cartridge There is continuity between J25 4 and J25 3 and J25 2 and J25 1 when you insert the cartridge and no continuity when you remove the cartridge YN The Print Cartridge is a Xerox N2125 Print Cartridge YN Replace Print Cartridge with a Xerox N2125 Print Cartridge PL 8 1 Replace the Print Cartridge Sensor Assembly together with the harness REP 7 4 Replace the Print Engine Controller PWB REP Replace the Print Engine Controller PWB REP RAP 14 Toner Low J5 The Print Cartridge is in a low toner condition Procedure Install a new Print Cartridge The JS Error Code still appears YN Problem solved Remove the Front Cover REP 1 6 and the Left Front Cover REP 1 7 Cheat the Front Cover Interlock Switch On the Connector PWB check the voltage between P J42 pin 4 and frame ground The voltage is 0 0VDC with the print cartridge installed and 3 3VDC with the print cartridge removed YN Check the voltage between P J42 pin 3 and pin 1 The voltage is 24VDC YN On the Connector PWB check the voltage between P J231 pin 11 and pin 12 The voltage is 24VDC YN Check the Connector Harness Assembly If OK replace the Print Engine Con troller PWB REP 9 3 Replace the Connector PWB REP 9 7 Replace the Toner Sensor REP 5 2 the connector PWB check the voltage between P J231 pin 9 and frame ground The volt age is 0 0VDC with the print cartridge
73. installed and 3 3VDC with the print cartridge removed YON Replace the Connector PWB REP 9 7 Check the Connector Harness Assembly If OK replace the Print Engine Controller PWB REP Initial Issue DocuPrint N2125 02 2000 Analysis Procedures RAP 13 RAP 14 221 RAP 15 P1 Fuser Pause Receiving PAUSE command from the Controller Procedure Switch OFF the printer power Remove the Fuser Assembly Measure the resistance between pins A4 amp AS of P272 on the Fuser Assembly Figure 1 The resistance reads between 7K ohms and 380K ohms see NOTE YN Replace the Fuser Top Cover REP 6 9 Replace the Print Engine Controller PWB REP NOTE The resistance measured will be determined by the actual temperature of the Fuser when the test is made The acceptable range is between 7K ohms and 380K ohms Pin 3 Pin 4 pin ay Pin A5 PinA Pin A5 Pin2 P272 Pint Pin2 P272 110 Volt 220 Volt Figure 1 Fuser Connector RAP 16 Motor Failure Power Off On U1 There is a problem with the Main Motor Procedure Remove the Left Interface Cover REP 1 1 the Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Open the Rear Cover and i installed remove the Duplex Assembly Manually rotate the rotor of the Main Motor clockwise as viewed from the left side of the printer The rotor of the Motor rotates smoothly YON Open the Front Cover and remove Print Cartridge Manua
74. instructed If the Fault History can not be printed the fault history can be displayed on the Control Panel To display the Fault History press and release 1 or 5 until Print Menu is dis played Then press and release 2 or 6 until Display Faults is displayed Next press press 3 to display the last fault that occurred Continue to press and release 3 to display the error codes in order from the newest to the oldest Pressing and releasing the 4 key will display the codes in order from the oldest to the newest The Display Faults will dis play the error code and the meter count when the event happened An example of the dis play E9 2 8207 where E9 2 is the error code and 820 is the meter count Proceed to Corrective Actions 10 11 12 13 1 4 Corrective Actions Procedure Ensure that the Initial Actions have been completed Switch the main power off wait 10 sec onds then switch the main power on The Fuser Fan runs YN Perform RAP 2 If the DC power is correct perform RAP 20 The Main Drive Motor runs for approximately 6 seconds then stops YN Perform RAP 16 The Fuser Fan runs YN Perform RAP 20 In approximately 30 seconds the LCD Panel will display Power On and the Power On Diag nostic POD software Version xxx The display is correct Y N Perform RAP 25 The Control Panel will display a number of different screens as the Power On Diagnostics Completes Figure 1 The
75. mm inches x inches Letter SEF 2153x2794 BS x IT Lega 19 2159x330 BS x IS Legal 17 215 8 3558 BS x 14 Executive SEF 1842 2887 725 x 1057 Aa SEF 210 0 x 2970 825 x 115 B5 IS SEF 3820x2570 7 x 107 A5 SEF 148 5 x 210 0 88 x 825 Custom Width 98 4 215 9 3 5 8 5 Length 148 5 355 6 5 8 147 NOTE Automatic size sensing is not effective for the custom size paper Available paper weight for Simplex Mode is 60gsm 16 216gsm 80 and for Duplex Mode 60gsm 16lb 105gsm 281b Multi Bypass Feeder MBF Standard feeder for the N2125 printer The tables show available paper sizes and stack capacity Table 2 and Table 3 Table 2 MBF 1 of 2 Length mm 3270 3588 8 145 Width 762 2159 19 85 NOTE Available weight of paper as follows Qualified paper 60gsm 16 Xerographic 216gsm 80 Cover Stock Japanese Official Postcard 190gsm Card Stock 216gsm 801b Table 3 MBF 2 of 2 pe Paper Stack Fai Xerox PA T20 sheets Xerox 20 Letter RX GOA TOU sheets andard 20b Paper TS mm 487 SRT height Transparency Label Postcard 30 sheets Envelope TU sheets Initial issue 0212000 General Procedures Information DocuPrint N2125 GP 1 4 GP 1 5 Table 3 MBF 2 of 2 re Paper Stack Capaciy Label shest B0 sheets Thicker Stock 80 sheets Special Purpose Paper supported for Paper Trays and MB
76. off Remove and reinstall the Duplex Unit Switch the printer power on Run a Config Sheet The Duplex Unit is listed on the Config Sheet Switch the printer power off Remove the Lett Interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Switch the printer power on On the Print Engine Controller PWB check the voltage between P J34 pin 9 and frame ground The voltage is 3 3VDC with the duplex Unit removed and 0 0VDC with the Duplex Unit installed YN Check the wiring harnesses If in good condition replace the Duplex PWB REP 12 4 Ifthe problem persists replace the Print Engine Controller PWB REP 9 3 Replace the Print Engine Controller PWB REP Problem Solved RAP 56 Paper Jam Open Front Cover E7 Paper is early to the Registration Sensor paper is late to or late off the Registration Sensor or the Registration Sensor is actuated at power on Procedure Open the printer and check for paper or other obstructions in the paper path Remove the Duplex Assembly and check the rear entrance chute to the Paper Handler The printer is free jammed paper paper scraps or other obstructions Y Clear all jammed paper paper scraps and obstructions from the printer Check the Duplex Belt Rollers and gears Check for contamination wear and obstructions The Duplex rollers gears and belt are clean and in good condition Y N Replace components or Duplex Assembly as necessary
77. only on duplexed prints The skewed image occurs on prints fed trom all trays YN The skewed image occurs on prints fed from the MBF Tray YN The skewed image occurs on prints fed from Tray 1 YN The skewed image occurs on prints fed from Tray 2 YN Check the Tray 3 Feed Rolls Clean or replace if necessary Check the Tray 3 Retard Roll Clean or replace if necessary Check the Nudger Roll Clean or replace if necessary Check the Tray 3 Transport Rolls Check for obstructions or con tamination Clean as necessary Check the feed chute between Tray 3 and Tray 2 Check for obstructions or contamination Clean as necessary Image Quality Repair Analysis Procedures 0212000 Initial Issue IQ RAP 12 IQ RAP 13 322 DocuPrint N2125 Check the Tray 2 Feed Rolls Clean or replace if necessary Check the Tray 2 Retard Pad Retard Roll Clean or replace if neces sary Check the Tray 2 Nudger Rall Clean or replace if necessary Check the Tray 2 Transport Rolls Check for obstructions or contami nation Clean as necessary Check the feed chute between Tray 2 and Tray 1 Check for obstruc tions or contamination Clean as necessary Check the Tray 1 Feed Rolls Clean or replace if necessary Check the Tray 1 Nudger Roll Clean or replace if necessary Check the Tray 1 Retard Roll Clean or replace if necessary Check the feed chute between Tray 1 and the Registration Rolls Check for obstructions or conta
78. power and disconnect the Power Cord REP 8 2 Main Drive Gear Assembly Parts List on PL 8 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the Left Interface Cover REP 1 1 1 Remove Tay 1 2 Remove the Lett Cover REP 1 2 2 Remove the Left Interface Cover Assembly REP 1 1 Remove the Left Plate Assembly REP 1 1 3 Remove the Left Cover REP 1 2 4 Disconnect P J29 from the Print Engine Controller PWB Figure 1 4 Remove the Front Cover Assembly REP 1 8 5 Release Motor Harness from all cable clamps 5 Remove the Left Front Cover REP 1 7 6 Remove the four screws that secure the Main Motor Assembly to the printer and remove 6 Remove the Left Plate Assembly REP 1 11 the assembly Figure 1 7 Remove the Plate Handle REP 1 12 8 Open Rear Door 9 Remove the Fuser Assembly REP 62 10 Remove the Top Cover Assembly REP 1 4 11 Remove the MBF Chute Assembly REP 4 1 x 12 Remove the Paper Handler Assembly REP 5 1 18 Remove the Chute Trans Assembly REP 6 1 14 Remove the Print Cartridge Top Guide Assembly REP 7 2 15 Remove the System Controller PWB REP 9 2 16 Remove the Print Engine Controller PWB REP 2 3 T7 Remove the Main Motor Assembly REP 8 1 18 Remove the LVPS PWB REP 9 5 19 Remove the four screws that secure the Drive Gear Assembly from the lett side of the printer Screws are marked with a D Figure 1 6 21254003 Figure 1 Main Moto
79. return here RAP 1 indicated that correct AC voltage is being sup plied to the printer Notify customer that the power is out of specification Perform RAP 2 then return here RAP 2 indicated that correct DC voltage is being sup plied to the printer YON Rap 2 instructed you to replace a component YN Perform RAP 3 Replace component as necessary the System Controller PWB check the voltage on P J13 between pins 1 and 2 The volt age is 3 3VDC Switch the printer power off Disconnect P J13 from the System Controller PWB Switch the printer power on Check the voltage between pins 1 and 2 on the disconnected plug The voltage is 3 3VDC YN Replace the LVPS REP 9 5 Switch the printer power off Remove any options connected to the System Controller PWB Reconnect P J13 to the System Controller PWB Switch the printer power on Check the voltage on P J13 between pins 1 and 2 if there are no options installed follow the No path The voltage is 3 3VDC YN Replace the System Controller PWB REP 9 2 Switch the printer power off Reinstall the removed options one at a time switching on the power and checking for 3 3VDC on P J13 between pins 1 and 2 after each is installed Replace the option just installed when the voltage fails the System Controller PWB check the voltage on P J13 between pins 3 and 4 volt age is 5 0VDC YN Switch the printer power off Disconnect P J13 fr
80. small screwdriver to the locking tabs to disconnect P672 Disconnect P J672 from the Socket Guide Figure 2 Remove the two screws that secure the Socket Guide Figure 2 Remove the Socket Guide together with the Connector Figure 2 Remove the Spring Figure 2 Side the Connector to disconnect it from the Socket Guide Figure 2 2125 4028 Figure 1 Rear L Holder Figure 2 Connector and Socket Guide Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 02 2000 Repair Adjustment REP 2 5 Repair Adjustment 022000 Initial issue REP 2 5 418 DocuPrint N2125 REP 3 1 Paper Feeder Parts List on PL 3 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 NOTE Remove all Optional 550 Sheet Feeders 2 Remove the Left Interface Cover Assembly REP 1 1 3 Remove the Left Cover REP 1 2 4 Remove the Front Cover Assembly REP 1 6 5 Remove the Left Front Cover REP 1 7 6 Remove the Left Plate Assembly REP 1 11 7 Remove the Plate Handle REP 1 12 8 Open Rear Door 9 Remove the Top Cover Assembly REP 1 4 10 Remove the Right Cover REP 1 5 11 Remove the LVPS PWB REP 25 18 Remove the seven screws that secure the Paper Feeder to the printer Figure 1 13 Pull the Paper Feeder toward the front to remove Figure 1 2025 4044 Figure 1 Paper Feeder Replacement 1 Reinstall the components in the reverse order
81. that the part is included with item 1 2 1 PL1 2 line item 1 Initial Issue DocuPrint N2125 0212000 Parts list 53 Introduction PL 1 1 Covers 1 of 3 Hem 1 48E64591 2 802K11330 3 48E64642 48K76454 5 802K09700 6 16 55281 7 48E64612 B02K10800 E 10 1 12 13 14 16 50K39130 17 48E64624 a 19 B91E95830 89203010 892E 15040 89215050 892 15020 20 892E08500 Description Left Cover Left Interface Cover Option Cover Cover Assembly Control Panel Assembly with 6 Control Panel Harness Assembly Right Cover Front Cover Assembly with 10 13 15 17 20 22 Front Cover Left Latch Assembly Lever Right Latch Assembly Stopper Cover Envelope Chute Tray Stopper MBF Tray Assembly Left Front Cover MBF Chute Contro Pane Overlay English Control Panel Overlay Symbols 220V Control Panel Overlay Spanish Control Panel Overlay Portuguese Control Panel Overlay French Canadian Xerox Logo Badge S 600K79660 Hardware Kit Includes Screw 13 8 with 10 13 15 17 20 22 Initial Issue 022000 Parts list DocuPrint N2125 54 PL 1 1 PL 1 2 Covers 2 of 3 1 2 3 4 5 B 7 600K79530 8 5414991 ad Es 10 3E45120 1 80210010 S 600K79660 Description Latch Spring Left Latch Right Latch Latch Cover Rear Cover Direction Arm Cap Kit quantity 2 Face Up Chute Assembly Right Pivot Stopper Stopper Duplex Guide
82. the detects The voltage tolerances for this section are listed in Table 1 under the topic Measurements Throughout these procedures the term vertical refers to the process direction the direction paper travels through the printer the term horizontal refers to the scanning direction the Measurements Power and signal grounds are connected to frame ground therefore all circuit troubleshooting can be performed using the metal frame chassis as the grounding point If more information is needed to locate connectors or test points refer to section 7 Unless specified otherwise the following voltage tolerances are used within this section Table 1 Table 1 Voltage Measurements Stated Measured direction the laser beam scans across the page DL VDO 52V00 Cleaning procedures should always be performed before beginning any Print Quality Repair r3 VDC 3 0 VOC 19 35 VDC procedure 240 VOC 218 VDC to 264 VOC OU VOC less than 05 VDC Be sure that the paper meets printer specifications Changing the paper or using paper from previously unopened ream will resolve many print quality issues After resolving an image quality problem return to Image Quality Checkout to verify that no other image quality defects exist Sample reproductions of he various image quality patterns are included under Image Quality Specifications Use the Image Quality RAPS to further diagnose machine problem
83. toner into a very thin layer on the Magnetic Roll Friction between the Magnetic Roll and the CM Blade gener ates a small electrical charge that is transferred to the toner The surface of the Magnetic Roll is made up of a thin sheet of conductive material The HVPS PWB supplies the Magnetic Roll with two voltages a negative DC voltage and an voltage The DC voltage is the voltage that is used to transfer toner from the Magnetic Roll to the surface of the drum The AC voltage agitates the toner on the Magnetic Roll and makes toner transfer easier The Magnetic Roll maintains an electrical potential relative to the charged surface of the drum Negative charged areas of the drum have a lower electrical potential or higher rel ative negative value than the Magnetic Roll Discharged areas of the drum have higher electrical potential or lower relative negative value than the Magnetic Roll A discharged point on the surface of the drum now appears less negative or positive relative to the negative charge on the Magnetic Roll The toner adhering to the Magnetic Roll is always in contact with the drum surface When less negative point on the drum a discharged area comes in contact with the more negative charged toner on the Magnetic Roll toner transfers from the Magnetic Roll to that point on the drum At this point there is now a visible toner image on the drum sur face taser Irradiated Part Of The DRUM Surface
84. tridge Sensor Assembly deactuated and 45 0VDC with the sensor actuated Replace the Print Cartridge Sensor Assembly together with the harness REP 7 3 Check the voltage between PL25 pin 2 and frame ground Manually actuate and deactu ate the Print Cartridge Sensor Assembly The voltage is 3 3VDC with the Print Car tridge Sensor Assembly deactuated and 0 0VDC with the sensor actuated YN Gut Serer ment ga aves REP 23 Replace the Print Engine Controller PWB REP Replace the Print Engine Controller PWB REP 9 3 Initial Issue 02 2000 DocuPrint N2125 245 Analysis Procedures RAP 35 RAP 36 RAP 37 Tray Motor Assembly Checkout Procedure Procedure NOTE Tray 1 interlocks the 24VDC supply to the Tray 1 Size PWB Tray 1 Feeder PWB Tray 2 and Tray 3 2 interlocks the 24VDC supply to the Tray 2 Size PWB Tray 2 Feeder PWB and Tray 3 Tray 3 interlocks the 24VDC supply to the Tray 3 Size PWB and the 3 Feeder PWB Switch the printer power off Remove the Paper Tray to be tested Switch the printer power on Measure the voltage from the lower contact of the Paper Feeder Socket to frame ground The voltage is 24 VDC YN Goto RAP 2 On the left side ofthe paper tray measure the motor winding resistance from the middle con tact to he lower contact of the Paper Feeder Connector The resistance reading is between 110 130 ohms YN Disconnect J673 from the 3 pin Paper
85. 0 Wiring Data DocuPrint N2125 735 Envelope Feeder Table 2 shows the signal names for the Print Engine Controller PWB lt gt Connector PWB lt gt Envelope PWB path Table 2 Signal Names Envelope PWB lt gt Envelope Exit Sensor Assembly No Paper Sensor and Clutch Figure 4 Signal Name Description TEPRS This signal is Figh when the Envelope Feeder is not installed ENEWS usta Signal Levels High 33V Low 0V 5 NC NOPRE Signal rom the No Paper Sensor This signal is High when all envelopes JELEN SNR fed from the Envelope Feeder 1 56 2 ow 2 ENV Ext Sensor Signal Levels High 33V Low 0V D m 3 not used SOLE Control signal forthe Envelope Feeder PWB This signalis High when The Print Engine Controller makes the PWB active Peta PLATE Signal Levels High 33V Low 0V 3 ANOPRE 1 SOLE u Control signal or the clutch This signal Low when the Envelopa 2 ES 2 No spar Sari Feeder PWB makes the clutch active 1 3 3 Pusat Plate 2 SLE OUD T 2 Envelope 5 5 els Feed Clutch D 7025 Figure 4 Envelope PWB lt gt Envelope Exit Sensor Assembly No Paper Sensor and Clutch Wiring Data 9272000 Initial Issue Envelope Feeder 736 DocuPrint N2125
86. 00 5 15 2 2000 5 16 2 2000 5 17 2 2000 5 18 2 2000 5 19 2 2000 5 20 2 2000 5 21 2 2000 5 22 2 2000 5 23 2 2000 5 24 2 2000 2 2000 2 2000 2 2000 2 2000 6 10 6 11 6 12 6 13 6 14 6 15 6 16 6 17 6 18 6 19 6 20 6 21 6 22 6 23 6 24 6 25 6 26 6 27 6 28 6 29 6 30 6 31 6 32 6 33 6 34 6 35 6 36 6 37 6 38 6 39 6 40 6 41 6 42 6 43 Revision 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 2 2000 6 44 2 2000 Page Revision 6 45 2 2000 6 46 2 2000 6 47 2 2000 6 48 2 2000 6 49 2 2000 6 50 2 2000 6 51 2 2000 6 52 2 2000 6 53 2 2000 6 54 2 2000 6 55 2 2000 6 56 2 2000 6 57 2 2000 6 58 2 2000 6 59 2 2000 6 60 2 2000 7 1 2 2000 7 2 2 2000 7 3 2 2000 7 4 2 2000 7 5 2 2000 7 6 2 2000 7 7 2 2000 7 8 2 2000 7 9 2 2000 7 10 2 2000 7 11
87. 00 Initial Issue 4 50 DocuPrint N2125 REP 7 1 BTR Assembly Parts List on PL 6 1 Removal WARNING Switch off the power and disconnect the Power Cord Do not touch the surface of the BTR with your hands Oil from your hands can cause image quality problems After removing the BRT Roll store the Roll on clean paper and cover with another sheet ot paper 1 Open the Front Cover Assembly and remove the Print Cartridge 2 Push down to release the left and right latches of the BTR Assembly Figure 1 3 Holding the ends of the BTR Assembly remove the assembly Figure 1 REP 7 2 Print Cartridge Top Guide Assembly Parts List on PL 8 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left Interface Cover Assembly REP 1 2 Remove the Option Cover REP 1 3 Remove the Front Cover Assembly REP 1 5 Remove the Left Front Cover REP 1 7 Remove the Top Cover Assembly REP 1 4 Remove the Lett Plato Assembly REP 1 11 Open the Rear Cover Disconnect PA 25 from the Print Engine Controller PWB REP 9 3 10 Remove the two screws that secure the Print Cartridge Top Guide Assembly to the printer Figure 1 2 11 Remove the Print Cartridge Top Guide Assembly together with the Print Cartridge Sensor Assembly from the printer Figure 1 8 10 2125_4076 Figure 1 BTR Assembly 7 i Replacement 1 Reinstall the components in the reverse order f 2028 4000 Figure 1
88. 000 Wiring Data DocuPrint N2125 727 Duplex Assembly Offset Catch Tray Wiring Diagrams and Signal Information This section of the manual contains a Block Diagram for the 2125 The Block Diagram shows the interconnections of the major subsystems within the printer The remainder of this section divides the Block Diagram into individual block diagrams to better ilustrate the electri cal relationships between components and assemblies within the Offset Catch Tray Each wire in the block diagram is tagged with a signal name and each wire is terminated at both ends with a pin number Block Diagram 1 OCT Block Diagram 2 Print Engine Controller PWB lt gt OCT PWB Figure 3 Table 2 3 OCT PWB lt gt Stack Full Sensor OCT Home Sensor OCT Exit Sensor Assembly and Direction Solenoid Figure 4 Table 3 4 OCT PWB lt gt Drive Motor Assembly and Offset Motor Assembly Figure 5 Table 4 Location of P J Connectors Use the table Table 1 and the PIJ map Figure 1 to locate a specific P J connector within the Feeder and Cassette 1 Locate the P J connector number in the first column of the table 2 Locate the corresponding coordinates in the second column such as I7 or J7 3 Go to the map 4 Crass reference the letter and number of the P J coordinates with the letters and numbers on the map 5 The connector is located within the area where the coordinates cross Wiring Data 272000 Initial Issue
89. 1 10 2125 mi 10 Figure 1 LVPS PWB Replacement 1 Reinstall the components in the reverse order REP 9 6 HVPS PWB Parts List on PL 10 1 Removal CAUTION These components are susceptible to electrostatic discharge Observe all ESD procedures to avoid damage WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Front Cover Assembly REP 1 6 3 Remove the Lett Front Cover REP 1 7 4 Remove the MBF Chute Assembly REP 4 1 5 Remove the Paper Handler Assembly REP 5 1 6 Remove the BTR Assembly REP 7 1 7 Remove the Transport Chute Assembly REP 6 1 8 Disconnect P J261 from the HVPS PWB Figure 1 9 Disconnect red Figure 1 30 Remove the screw that secures the HVPS PWB housing to the printer Figure 1 11 Remove the HVPS Assembly Housing from the printer Figure 1 12 Carefully disconnect the DTS white and TR red wires from the HVPS Figure 2 13 Releasing the two hooks that secure the PWB to the Housing remove the HVPS PWB Figure 2 205 4n3 Figure 1 Transport Chute Assembly Repair Adjustment REP 9 5 REP 9 6 02 2000 4 50 Initial Issue DocuPrint N2125 13 205 Figure 2 HVPS PWB Replacement 1 Reinstall the components in the reverse order REP 9 7 Connector PWB Parts List on PL 10 1 Removal CAUTION These components are susceptible to electrostatic discharge Observe all ESD proce
90. 1 Remove the Exit Chute Assembly REP 6 4 Lift the Static Eliminator Assembly and remove Figure 1 See REP 6 8 step Remove the Stack Full Actuator REP 6 8 Release the locking tab and remove the Exit 17 Gear from the defective Roll Assembly Figure 1 Figure 2 or Figure 3 Remove the 32 Gear from the Exit Chute Assembly Figure 1 With a small screwdriver carefully release the locking tab that secures the Exit Bearings to the Exit Chute Assembly Figure 1 Figure 2 or Figure 3 Remove the Roll Assembly together with the Exit Bearing from the Exit Chute Assembly Figure 1 Figure 2 or Figure 3 Remove the left Exit Bearing from the Roll Assembly 15 gt 2125 4082 Figure 1 Exit 17 amp Exit 32 Gears Initial Issue 02 2000 DocuPrint N2125 447 Repair Adjustment REP 6 7 Figure 2 Mid 1 Roll Assembly 2125 4083 5 Figure 3 Mid 2 Roll Assembly Replacement 1 Reinstall the components in the reverse order Repair Adjustment REP 6 7 02 2000 Initial Issue 448 DocuPrint N2125 REP 6 8 Stack Full Actuator Parts List on PL 7 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Rom 1 2 4 5 7 205 408 77 Figure 2 Stack Full Actuator Replacement 1 Reinstall the components in the reverse order 1 2125_4080 Fig
91. 1 Duplex Assembly P J Table EPEE E E LA Eoo TRE RE Connector Coordinate Description D pase LL Vonnecisihe Duplex Sensor Harness Assembly io the Duplex Pwe Paa LL Connects the Duplex Sensor Assembly ic the Duplex PWE 2 87 Connects the Duplex Motor Assembly to the Duplex PWB PUS8 87 Connects the Duplex Option Harness Assembly io the Duplex Pwe AE UA Connects the Duplex Sensor Harness Assembly tho Sensor Photo IN H L 4 TT Connects the Duplex Option Harness Assembly tothe Printer Assembly Print Engine Controller PWB 360 Pid Map are 5 set 7002 Figure 1 Duplex Assembly PIJ Map Initial Issue 022000 Wiring Data DocuPrint N2125 725 Duplex Assembly Block Diagram Print Engine Controller PWB lt gt Duplex PWB Figure 3 Table 2 0 Dup Pwe pose 1109076 54321 90191919191 Duplex PWE s J391 B zi xa mis 77 eg ja ERB EE a 1 f PUMA 12 34 8 6 78 911 Print Engine Controller PWB Print Engine Controller PWB me Figure 3 Print Engine Controller PWB lt gt Duplex PWB jure 2 Duplex Assembly Block Diag
92. 11 PL5 1 PL 6 1 Chute Transport amp Fuser Part Description 1 22K55010 Assembly ewmm A 2 54K15000 Transfer Chute Assembly with 95 3 Bearing BTR SUP 4 Spring BTR 5 Transport Chute reference only 129010192 Fuser Assembly 120V with 10 m 126K10141 Assembly 230V 7 DTS Wire Assembly TR Wire Assembly 9 162K47191 Fuser Harness Assembly 120V 271 J11 J27 J262 162K51861 user Harness Assembly 230 271 J11 J27 J262 10 802K10000 Fuser Upper Cover Assembly 11 126K08410 Heat Rod 120V 126009710 Heat Rod 230V 108R00328 Usage Kit 120V with Fuser BTR 2 Feed Fols 13 108800529 Usage Kit 230V with Fuser BTR 2 Feed Fols S 600K79660 Hardware Kit Includes Screw f i initial Issue pu Parts iist DocuPrint N2125 512 6 1 PL 7 1 Exit Hem 1 105K14903 2 120 13350 3 4 5 B 7 59K11950 8 9 10 11 S9k11960 12 13 14 15 16 130E81970 17 162K46981 20 127411 21 25 600K79540 26 54K15890 Description Static Eliminator Assembly Stack Full Actuator Exit Gate Exit Spring Exi 17 Gear Exit Bearing MID 1 3 Roll Assembly Out Exit Roll Pinch Exit Roll Pinch Exit Spring Pinch MID 2 Roll Assembly Roll Pinch MID Spring Pinch Spring Pinch Exit Chute Exit Photo Sensor Stack Full Sensor Harness Assembly J30 J301 Interlock Cover Exit 23 Gear Exit 33 Gear Exit Mo
93. 12 6 5 Push the two locking tabs out to release the Upper Chute Assembly Figure 1 6 Lift the Upper Chute unti itis straight up Figure 2 7 Lit the right end to remove it from the right mounting Figure 2 8 Move the Upper Chute Assembly to the right and remove Figure 2 Upper Chute Assembly Replacement 1 Reinstall the components in the reverse order Figure 1 Locking Tabs Repair Adjustment 022000 Initial issue REP 12 7 496 DocuPrint N2125 REP 12 8 Motor Assembly REP 12 9 Rear Roll Assembly Parts List on PL 13 2 Parts List on PL 13 2 Removal Removal WARNING WARNING Switch off the power and disconnect the Power Cord Switch off the power and disconnect the Power Cord 1 Remove the Duplex Assembly REP 12 1 7 Remove the Duplex Assembly REP 12 1 2 Remove the Duplex Cover REP 12 3 2 Remove the Turn Chute Assembly REP 12 2 3 Remove the Drive Cover REP 12 5 Remove the Duplex Cover REP 12 3 4 Disconnect P J38 from the Duplex PWB Figure 1 4 Remove the Drive Cover REP 125 5 Remove the harness from all cable clamps Figure 1 5 Remove the Motor Assembly REP 12 8 6 Remove the two screws that secure tho Motor Assembly Figure 1 6 Release the locking tab and remove the Rear Belt Stopper Figure 1 7 Remove the Motor Assembly Figure 1 7 Remove the Duplex Gear Figure 1 8 Remove Gears 17 and 18 Figure 1 8 Figure 1 Motor Assembly Replacement 1 Reinstall the com
94. 125 RAP 8 Paper Jam Misfeed E2 Paper arrives early or late to the Registration Sensor or is on the sensor at power up Procedure Check the paper in all trays Check for curled damaged or damp paper and for paper that is of specification The paper is in good condition and meets specification YN Replace with fresh dry paper that is within specifications Check all paper paths for contamination paper or other obstructions All paper paths are clean and free of obstructions YN Remove contamination or obstructions Enter Diagnostics and select Test Print Run five prints from every paper tray The problem appears when printing from Tray 2 or 3 Remove Tray 1 from the printer Check the Nudger Rol Feed Rol and Retard for contamination and wear ll rolls are clean and in good condition YN hante tne igen Fonc or Pata Rol as necessary REP REP Reinsert Tray 1 into the printer From the rear of the printer watch the Tray 1 Bottom Plate The Bottom Plate is raised fully and evenly YN Go to RAP 37 From the rear of the printer watch the paper feed as you run a test print from tray 1 The Nudger Roll and Feed Roll rotate YN Go to RAP 40 Paper is fed from the tray to the Turn Roll Assembly YN Replace the Nudger and Feed Rolls REP 3 8 The Turn Roll Assembly moves the paper to the Registration Sensor YN Go to RAP 39 Go to RAP 32 Remove Tray 1 Check the paper chute at the
95. 125 4228 Figure 1 Exit Tray Paper Weight Figure 2 Exit Tray Replacement Reinstall the components in the reverse order Repair Adjustment REP 10 3 02 2000 468 il Issue DocuPrint N2125 REP 10 4 Rear Cover Assembly Parts List on PL 14 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove the Offset Catch Tray REP 10 1 Remove the Exit Tray extension REP 10 2 Remove the Exit Tray REP 10 3 Turn the Offset Catch Tray upside down Remove the Lower Cover REP 10 5 Remove the Inner Exit Chute Assembly REP 10 5 Release and remove the two Rear Cover Springs Figure 1 Remove the six screws that secure the Rear Cover Figure 1 Remove the Rear Cover Figure 1 Rear Cover Assembly Replacement 1 Reinstall the components in the reverse order REP 10 5 Lower Cover Parts List on PL 14 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the Offset Catch Tray REP 10 1 2 Carefully turn the Offset Catch Tray upside down 3 Remove the six screws that securo the lower cover Figure 1 4 Remove the Lower Cover Figure 1 205 032 Figure 1 Lower Cover Replacement 1 Hold the Stack Height Sensor Actuator out as you reinstall the lower cover 2 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 0212000 Repair Adjustment 469 REP 10 4 REP 10 5 REP 10 6 Inner Exit Chute Assembly Parts List
96. 16 Feed Roll Assembly 2 Parts List on PL 12 2 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the Envelope Feeder from the printer 2 Remove the Bottom Cover REP 13 1 3 Remove the Top Chute REP 13 2 4 Remove the Envelope Feeder PWB REP 13 3 5 Remove the Gear Cover REP 13 11 6 Remove the Torque Clutch and Bearing from the Feed Roll Shaft Figure 1 7 Sido the Feed Roll Shaft and Bearing to the left until itis free of the right mounting Figure 2 Remove the Feed Rall Assembly 2 Figure 2 9 It replacing the feeder rolls remove the feeder rolls from the assembly Figure 3 Figure 2 Feed Roll Shaft 9 Figure 3 Feed Roll Assembly 2 Replacement 1 Reinstall the components in the reverse order Repair Adjustment 0212000 Issue REP 13 16 112 DocuPrint N2125 REP 13 17 Feed Belts Parts List on PL 12 2 Removal WARNING Switch off the power and disconnect the Power Cord 1 2 4 5 7 1 Remove the Envelope Feeder from the printer Remove the Bottom Cover REP 13 1 Remove the Top Chute REP 13 2 Remove the Envelope Feeder PWB REP 13 3 Remove the Gear Cover REP 13 11 Remove the Feed Clutch REP 13 12 Remove the Bottom Roll Assembly REP 13 14 Remove the Feed Rall Assembly 1 REP 13 15 Remove the two pinch rolls fram under the feed belts Figure 1 D Rotate one side of the belt and slide it through the slot in the frame
97. 2 275 ROS Motor iH 2AN RN lel a RMOQUT Le 0 5 C2 IROLK OU nE Eon 7018 Figure 15 Print Engine Controller PWB lt gt Laser Assembly Table 12 shows the signal names for the Fuser Print Engine Controller PWB lt gt Laser Assem bly path Table 12 Signal Names Signal Name Descriptor Print image Daia Signal Levels High 3 3V Low 0V Initial Issue 272000 Wiring Data DocuPrint N2125 749 Base Engine System Controller PWB lt gt Control Panel Figure 16 Table 13 System Controller PWB Control Panel Figure 16 System Controller PWB lt gt Control Panel Table 13 Signal Names 550 Sheet Paper Feeder Wiring Diagrams and Signal Information This section of the manual contains a Block Diagram for the N2125 550 Sheet Paper Feeder Assembly The Block Diagram shows the interconnections of the major subsystems within the printer The remainder of this section divides the Block Diagram into individual block diagrams to better illustrate the electrical relationships between components and assemblies within the 550 Sheet Paper Feeder Assembly Each wire in the block diagram is tagged with a signal name and each wire is terminated at both ends with a pin number Block Diagram 1 550 Sheet Feeder Block Diagram 2 Size 1 PWB lt gt Tray 2 PWB lt gt Tray 3 PWB Table 2 3 Feeder PWB lt gt Low Paper Sensor Stack Height Sensor Feed Clutch Asse
98. 2000 Offset Catch Tray 730 Initial Issue DocuPrint N2125 Table 2 shows the signal names for the Print Engine Controller PWB lt gt OCT PWB path Table 2 Signal Names OCT PWB lt gt Stack Full Sensor OCT Home Sensor OCT Exit Sensor Assembly and Direction Solenoid Figure 4 Table 3 Signal Name Description TOCT PRE Signal from the OCT PWB That detects the installation of he OCT THis signal turns Low when the OCT is installed Signal Levels High 3 3V Low 0V INGT FSTKOGT Signal ram the OCT PWB generated alier the recepi of the signal NOT 24 1228 FSTK from the Stack Full Sensor This signal detects the full of paper on 1 NOE he Ext of he OCT Turning High ot tris signal norms tne Print 2 28 E stack Ful Sensor Engine Controller of the full stack of the Exit Tray Be 4 ue Signal Levels High 33V Low 0V 5 UP OFFSET MOT Motor control signal for the Offset Motor Assembly 6 E TOGT HOME E OCT Home Sensor TBI Signal Levels High 33V Low 0V aaveuu u TOGT POWERD Control signal for ihe The signal is used fo Switch on the OCT Tor HE sa H he reason that the OCT Harness Assembly M includes the signal ines pE EMT ES Exit Sensor Assy the Mail Box and is used commonly for the Mail Box This signal is the Print
99. 2000 4 93 2 2000 2 2000 2 38 2 2000 3 16 2 2000 4 24 2 2000 4 94 2 2000 2 2000 2 39 2 2000 3 17 2 2000 4 25 2 2000 4 95 2 2000 2 2000 2 40 2 2000 3 18 2 2000 4 26 2 2000 4 96 2 2000 2 2000 2 41 2 2000 3 19 2 2000 4 27 2 2000 4 97 2 2000 2 2000 2 42 2 2000 3 20 2 2000 4 28 2 2000 4 98 2 2000 2 2000 2 43 2 2000 3 21 2 2000 4 29 2 2000 4 99 2 2000 2 2000 2 44 2 2000 3 22 2 2000 4 30 2 2000 4 100 2 2000 2 10 2 2000 2 45 2 2000 3 23 2 2000 4 31 2 2000 4 101 2 2000 2 11 2 2000 2 46 2 2000 3 24 2 2000 4 32 2 2000 4 102 2 2000 2142 2 2000 2 47 2 2000 3 25 2 2000 4 33 2 2000 4 103 2 2000 248 2 2000 2 48 2 2000 3 26 2 2000 4 34 2 2000 4 104 2 2000 244 2 2000 2 49 2 2000 4 35 2 2000 4 105 2 2000 2 15 2 2000 2 50 2 2000 Lost inks 2 2000 4 36 2 2000 4 106 2 2000 Initial Issue DocuPrint N2125 02 2000 Revision Control List Page Revision 4 107 2 2000 4 108 2 2000 4 109 2 2000 4 110 2 2000 4 111 2 2000 4 112 2 2000 4 113 2 2000 4 114 2 2000 4 115 2 2000 4 116 2 2000 5 1 2 2000 5 2 2 2000 5 3 2 2000 5 4 2 2000 5 5 2 2000 5 6 2 2000 5 7 2 2000 5 8 2 2000 5 9 2 2000 5 10 2 2000 5 11 2 2000 5 12 2 2000 5 13 2 2000 5 14 2 20
100. 3 or 7 Table 8 U6 Value Description T Task Over Flow z Timer Table Over Flow 5 6 7 legal interruption NVN Tar 89 GP 2 7 Component Test This operation allows the user to test various electrical components of the printer The actua tion and deactuation of switches sensors and the energizing de energizing of motors sole and clutches Table 2 The component Diagnostics will provide the following routines Input actuation and state change of sensors and switches Turning on and of of Output components motors clutches solenoids etc Input test displays Test Name and increments counter 01 02 08 ete Output test displays Test Name and visual feedback of operation displayed Table 1 summarizes the operation of the Control Panel keys in Component Test Table 1 Test Print Key Table Key Numbers Actions Tem Up Wem Down zors IW scroll Component Menu see Table 2 Emer 3 Willturn on selected components T urn off all components Procedure 1 Power down printer Simultaneously hold keys 2 and 6 down Power up printer wait for message IOT to appear on the LCD Release both keys then press key 4 to enter the IOT Diagnostics menu message Enter ing IOT Diagnostics Mode appears If 4 is not pressed within 5 seconds of the IOT message printer will go to the normal boot process Press key 1 or 5 to scroll to Component T
101. 5 Paer Bi Connects the NIWOT Harness Assembly to the Feeder PWE PR The Size Option Harness Assembly tothe Printer Asse 5 by Size 1 PB is ee Pss Tes the Harness Assembly io ihe Lower Feeder Puen cs Connects the Turn Clulch Harness Assembly to the Turn Clutch 673 672 671 sar hd Assembly PIST C8 Connects the Feed Clutch Harness Assembly to the Fed 7 Assembly i po leu lan SNS TSS SSS PSS 2 Paper 5 1 Paez ETO Connects the NISNER Harness Assembly o the Stack Height Sem a Pen Connecis the MOT Harness Assembly the Sockel MS PUS7Z ES Connects the Cassette Assembly tothe Feeder Assembly Paer DS Connects the Matar Assembly o he Connector ie s Pid Map n 662 s 7001 Figure 1 550 Sheet Paper Feeder P J Map Initial Issue 202000 Wiring Data DocuPrint N2125 TM 550 Sheet Paper Feeder Low Paper Sensor Stack Height Sensor Feed Clutch Assy Tum Clutch Assy 2673 672 4671 gt c Paper it S Motor gt 5 NUD MOTOR Trays PISS Puse J521 1 1 T No Paper 2 6 Sensor 3 5 4 4 5 3 6 HET SE From a 5 paps PAL 9 a 6 ho 5 1 1 4 2 Switch Size 12 3 3 Hal 2 PIN 4 oo 14 1 o E de 48218 1 oo ATRNC OUT 24V UL Size 1 PWB Prue NOTE Tray 2 an
102. 9 and frame ground Press Enter The voltage drops from 424VDC to 0 0VDC YN Replace the Print Engine Controller PWB REP 9 3 Replace the Registration Clutch REP 5 5 Switch the printer power off Open the Front Cover and remove the Print Cartridge With the Front Cover open cheat the Front Cover Interlock Enter Diagnostics and select Component Test Scroll to Main Motor and press Enter Scroll to Confirm Reg Clutch and press Enter The Registration Rolls rotate smoothly without stalling or jerking YN Replace the Registration Clutch REP 5 5 or Registration Rolls REP 5 6 Prablem Solved Status Indicator Repair Analysis Procedures RAP 37 RAP 38 02 2000 Initial Issue 2 36 DocuPrint N2125 RAP 39 Turn Roll Clutch Assembly Procedure Enter Diagnostics and select Component Test Scroll to Turn Roll Clutch and press Enter You hear the Turn Roll Clutch energize Y Y N Remove Tray 1 Check the voltage between the lower contact of the Paper Feeder Con and frame ground The voltage is 24 0 Y N Switch the printer power oft Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Switch the printer power on On the Print Engine Controller PWB check the voltage between P J33 pin 6 and frame ground The voltage is 24VDC YN Replace the Print Engine Controller PWB REP 9 3 Replace the Feeder PWB REP 3 9 On the left si
103. Assembly Figure 1 12 Remove the Motor Figure 1 REP 6 6 Stack Full Sensor Parts List on PL 7 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left Interface Cover Assembly REP 1 1 Front Cover Assembly REP 1 5 Remove the Lett Front Cover REP 1 7 Remove the Top Cover Assembly REP 1 4 Open Rear Cover Remove the Static Eliminator Assembly See REP 6 8 stop Remove the Stack Full Actuator REP 6 8 Disconnect P J311 from the Stack Full Sensor Figure 1 10 Disengage the five hooks securing the Stack Full Sensor to the Exit Chute Assembly Fig ure 1 Remove the Sensor Figure 1 n 3125 4085 Figure 1 Exit Sensor 205 4087 Figure 1 Exit Motor Assembly Replacement 1 Reinstall the components in the reverse order Replacement Reinstall the components in the reverse order Repair Adjustment RUE Initial Issue REP 6 5 REP 6 6 DocuPrint N2125 REP 6 7 Mid 1 amp Mid 2 Roll Assemblies Parts List on PL 7 1 Removal WARNING Switch off the power and disconnect the Power Cord 15 16 17 Remove Tray 1 Remove the Left Interface Cover Assembly REP 1 1 Remove the Left Cover REP 1 2 Remove the Front Cover Assembly REP 1 6 Remove the Lett Front Cover REP 1 7 Remove the Top Cover Assembly REP 1 4 Remove the Rear Cover Assembly REP 1 8 Remove the Interlock Cover REP 1 10 Remove the Left Plate Assembly REP 1 1
104. Assembly 22 Weight Cover 28 Weight Plate 24 600K79310 Retard Roll Kit Assembly S 600K79660 Hardware Kit Includes Screw 5016 Initial Issue 022000 Parts list DocuPrint N2125 519 PL 12 1 PL 12 2 Envelope Feeder 2 of 2 Hem Part d Lx 3 TE27420 A ux 5 7E36080 6 121K87180 FD Az 8 7E28780 9 121K87201 0 11 121087190 12 6 47120 18 121K87210 14 121K87220 Description Envelope Feeder Sub Assembly with 2 31 Gear Cover Gear 29 Gear Drive 21 Gear 23 Torque 25 Clutch Assembly Feeder Bearing Idler 21 Gear One Way 26 Clutch Assembly Bearing Clutch Elec Feed Clutch Clutch Shaft 17 One Way Clutch Assembly One Way Clutch Assembly 1 with 2 31 15 with 16 15 Transport Rol Assembly with 16 16 Transport Roll 1 17 Bottom Assembly 1 Envelope Pinch Roll 19 Food Belt 20 Main Chassis No Paper Actuator 22 18061870 No Paper Sensor 23 Food Roll Assembly 1 wih 24 El Feeder Roll 25 Feed Roll Assembly 2 with 26 25 Feeder Roll z Envelope Connector 28 Main Harness Assembly 29 Clutch Harness Assembly 30 Envelope E No Paper Harness Assembly S G00K79660 Hardware Kit Includes Scrow so lesue pum Parsist DocuPrint N2125 520 PL 12 2 PL 13 1 Duplex 1 of 2 nem Description 1 gh 26 1 Duplex Assembly with 2 6 2 um Chute Assembly Connector Chute Assembly Connector 4 sakiso61 Upper Chute Assembly 5 Duplex Drive
105. Assembly REP 1 5 Remove the Left Front Cover Assembly REP 1 7 Remove Top Cover Assembly REP 1 4 Remove the Lett Plato Assembly REP 1 11 Remove the Plate Handle REP 1 12 Disconnect P J33 from the Print Engine Controller PWB and remove cable from all cable clamps Figure 1 10 Press the locking pin and slide the housing to the rear of the printer and remove Figure 2125_402 9 Figure 1 Size Sensor Housing Replacement 1 Reinstall the components in the reverse order Repair Adjustment pem Initial Issue REP 3 10 REP 3 11 426 DocuPrint N2125 REP 3 12 Size Sensor Actuators Replacement Parts List on PL 9 1 Refer to inset A Removal 1 Position the Size Sensor Actuators below the Housing Assembly as shown 2 Press and hold B to allow the actuators C to fall into position 3 During reassembly ensure that locking tabs slide into position 4 Reinstall the components in the reverse order WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left Interface Cover REP 1 1 Remove Left Cover REP 1 2 Remove the Front Cover Assembly REP 1 6 Remove the Left Front Cover Assembly REP 1 7 Remove Top Cover Assembly REP 1 4 Remove the Left Plate Assembly REP 1 11 Remove the Plate Handle REP 1 12 Remove the Size Sensor Housing REP 3 11 NOTE Observe orientation of switch actuators before removal 10 Remove the four screws that secure the Size Sens
106. Assembly it detects when paper passes into the Tray Exit Home Sensor The OCT Home Sensor detects when the Offset Roll Assembly is in the home position It is turned On when the Gear Core is located at the sensing point of the OCT Home Sensor Direction Solenoid and Lever Switches the paper path between the normal paper path and the OCT paper path Gear 47 W Exit Gear 20 Gear ar Gear 26 Ext Rol Assy Motor Drive Assy ocr pws Exi Pinch Rol Direction Solenoid Gear 28 gear 27 Solenoid Lover Od Pinch Pot Mla OCTRol Assy tose Figure 5 Major Components of the OCT 2 of 2 Ext Roll Assy Exit Pinch Roll Ext Gear 20 Fu Stack Actuator OCT Home Sensor Ext Sensor Assy Core Gear or Lever Stack Full Sensor Offset Catch Tray Control Offset Motor Control When the end of a sheet of paper reaches the OCT Exit Sensor Assembly the sensor signal goes Low The Offset Motor Assembly begins rotating clockwise for a specified time after the signal goes Low This clockwise rotation shifts the sheet of paper from the normal position At the specified time after the Sensor Assembly Exit goes Low the Exit Motor Assembly begins rotating in the counterclockwise direction moving the Offset Roll Assembly back into home position until the Sensor OCT Home signal OCT HOME goes Low When the power is first switched the Offset Motor Assembly performs this offset operation once to make sure th
107. Bottom Roll Assembly 4110 REP 11 1 Printer Removal 479 REP 18 15 Feed Roll Assembly 1 ant REP 11 2 550 Sheet Feeder Right Cover 479 13 16 Feed Roll Assembly 2 4112 REP 11 3 550 Sheet Feeder Left Cover 480 13 17 Feed Belts 4113 REP 11 4 550 Sheet Feeder Gear Bracket Assembly 4 80 REP 11 5 Top Plato 481 Adjustments REP 11 6 550 Sheet Feeder Drive Assembly 481 ADJ 1 1 Registration ans REP 11 7 No Paper Actuator 482 REP 11 8 Turn Roll Assembly 482 REP 11 9 Feeder PWB 483 REP 11 10 Feed Clutch Assembly REP 11 11 Paper Feed Rolls 485 REP 11 12 Feeder Assembly 486 REP 11 13 Stack Height Sensor 487 REP 11 14 Low Paper Sensor 487 REP 11 15 Feeder Socket E REP 11 16 550 Sheet Feeder Size Hamoss Assembly 488 REP 11 17 Size Sensor Housing Assembly 489 REP 11 18 Size Sensor Actuators 420 REP 11 19 Size PWB 491 REP 11 20 Size Harness Assembly 491 Duplex Unit REP 12 1 Duplex Assembly E REP 12 2 Chute Assembly 483 REP 12 3 Duplex Cover 494 REP 12 4 Duplex PWB 494 REP 12 5 Drive Cover 495 REP 12 6 Connector Chute Assembly 495 REP 12 7 Upper Chute Assembly 4 96 REP 12 8 Motor Assembly 497 REP 12 9 Rear Roll Assembly 497 REP 12 10 Middle Roll Assembly 498 REP 12 11 Front Roll Assembly 499 REP 12 12 Synchronous Bett 4 100 REP 12 13 Transport Sensor 4101 Repair Adjustment PETEA Initial Issue 42 DocuPrint N2125 Introduction Overview The Repair Adjustment section Section
108. DocuPrint N2125 REP 12 13 Transport Sensor Parts List on PL 13 2 Removal WARNING Switch off the power and disconnect the Power Cord 1 2 3 4 5 Remove the Duplex Assembly REP 12 1 Remove the Duplex Cover REP 12 3 Disconnect P J37 from the Duplex PWB Figure 1 Release the four locking tabs that secure the Transport Sensor Figure 1 Remove the Sensor Figure 1 Figure 1 Transport Sensor Replacement 1 Reinstall the components in the reverse order REP 12 14 Face Up Tray Sensor Parts List on PL 13 2 Removal WARNING Switch off the power and disconnect the Power Cord 7 Remove the Duplex Assembly REP 12 1 2 Release the four locking tabs that secure the Face Up Tray Sensor Figure 1 Disconnect P J361 from the Face Up Tray Sensor Figure 1 4 Remove the Sensor Figure 1 2125 4298 Figure 1 Face Up Tray Sensor Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 02 2000 Repair Adjustment 4 101 REP 12 13 REP 12 14 Repair Adjustment 02 2000 Initial issue REP 12 13 REP 12 14 4 102 DocuPrint N2125 REP 13 1 Bottom Cover Parts List on PL 12 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the Envelope Feeder from the printer the Feeder upside down 2 3 Remove the two screws that secure the front of the Bottom Cover Figure 1 4 Rotate the front of the Bottom Cover up until the t
109. Drop Clath PTT Film Remover SPAS Formula Cleaner P38 Towel heavy duy SSPSTST RX Unique Cleaner 890775 leaning Pad Kit 50054372 Fuser Cleaning Solvent Pads HSPES janeral Cleaning Solvent 890776 Test Pattern Output Performance BZPS20 Test Pattern Visual Scale SPIES 34 Magnetic Screwdriver 500131738 Yellow Towels PTE Initial Issue DocuPrint N2125 02 2000 6 59 General Procedures Information GP 5 1 General Procedures Information 02 2000 Initial Issue GP 5 1 6 60 DocuPrint N2125 Section Contents Base Engine 550 Sheet Paper Feeder Duplex Assembly Offset Catch Tray Envelope Feeder 73 73 720 724 728 733 7 Wiring Data Initial Issue DocuPrint N2125 02 2000 74 Wiring Data Wiring Data 022000 Initial issue 72 DocuPrint N2125 Section Contents Introduction This section of the manual contains a Block Diagram for the N2125 printer The Black Diagram shows the interconnections of the major subsystems within the printer The remainder of this section divides the Block Diagram into nine individual block diagrams to better ilustrate the electrical relationships between components and assemblies within the printer Each wire in the block diagram is tagged with a signal name and each wire is terminated at both ends with number Base Engine Wiring Diagrams and Signal Information for Engine Organization 2 4 10 n 12 Wiring Diagram Notations Fig
110. EAKS Extanecus dark lnasibands in he process direcion TO RAP 7 HORIZONTAL STREAKS Exiraneous dark lines bands in the direction of 0 RAP E RESIDUAL IMAGES The image from a previous print which was not IG RAPS removed during the cleaning process has been developed on the current print BLACK PRINTS The printis completely covered wih toner and has no visi T0 ble image BACKGROUND Union Toner contamination m non image areas Refer to TO RAP TT the Background specification UNEVEN DENSITY The lexi ina darkness and solid area densily image var IO RAP 12 ies across the print SKEWED IMAGE Angular displacement of the image from intended posi RAP 13 tion on the print Refer to the specification DAMAGED PRINTS Greases wrinkles excessive curl olds or TO RAP 14 embossed marks REGISTRATION lead edge To trail edge Displacement of the image in the IO RAP 18 process direction from ils intended position on the print inboard to outboard Displacement of the image in the direction of scan from its intended position the print SKIPS SMEARS Skip Loss or stretching of the image in bands across the 16 process direction Smoar The distortion of the image in bands across the process direction that cause it to appear to be blurred or compressed UNFUSED IMAGE Part of or al ofthe image is unused Refer to Whe speci TO RAP 7 cation RESOLUTION AT 600 DPT the two piel ines and ha
111. EP 1 1 Remove the Lett Cover REP 1 2 4 Remove the Front Cover Assembly REP 1 6 5 Remove the Left Front Cover REP 1 7 6 Remove the Left Plate Assembly REP 1 11 7 Remove the Plate Handle REP 1 12 8 Open Rear Door 9 Remove the Top Cover Assembly REP 1 4 10 Remove the Right Cover REP 1 5 11 Remove the LVPS PWB REP 9 5 12 Remove the Paper Feeder REP 3 1 13 Disconnect P J86t from the Low Paper Sensor Figure 1 14 Release the five hooks and remove the Low Paper Sensor Figure 1 Figure 1 Low Paper Sensor Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 0212000 Repair Adjustment 421 REP 3 4 REP 3 5 REP 3 6 Feed Clutch Assembly Parts List on PL 3 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left Interface Gover Assembly REP 1 1 3 Remove the Left Cover REP 1 2 4 Remove the Front Cover Assembly REP 1 6 5 Remove the Left Front Cover REP 1 7 6 Remove the Left Plate Assembly REP 1 11 7 Remove the Plate Handle REP 1 12 8 Open Rear Door 9 Remove the Top Cover Assembly REP 1 4 10 Remove the Right Cover REP 1 5 11 Remove the LVPS PWB REP 9 5 12 Remove the Paper Feeder REP 3 1 1 Remove the four screws that secure the bracket to the Paper Feeder and remove the bracket Figure 1 44 Remove the Gear 3 and Gear 2 from the shaft of the Paper Feeder Figure 1
112. EP 3 11 Measure continuity between the disconnected P J33 pin 6 to P J331 pin 12 on the Tray 1 Size PWB There is continuity between the two pins YN Repair or replace Feeder Harness Assembly PL 9 1 On the 1 Size PWB measure continuity between P J331 pin 12 to PLIG pin 1 There is continuity between the two pins YN Relate Tay 1 se pus EP 313 Check the wiring between P J67 pin 5 on the Tray 1 Feeder PWB and the bottom pin on the Paper Feeder Socket P J672 If in good condition replace the Tray 1 Feeder PWB REP 3 9 On the paper tray measure the resistance between the middle and bottom terminals on the Paper Feeder Socket The resistance is 75 to 105 ohms YN On the paper tray measure the resistance between the top and bottom terminals on the Paper Feeder Socket There is continuity 0 ohms between the two pins YN Repair or replace the Paper Feeder Socket Replace the following parts one at a time until the problem is resolved Stack Height Sensor 3 4 Feeder PWB 3 9 Size 1 PWB 3 13 Print Engine Controller PWB 9 3 Remove the Tray 3 from the paper feeder Check the voltage between the lower ter minal on the Paper Feeder Connector and frame ground The voltage is 24VDC YN Check the wiring harnesses between the Tray 2 Size PWB P J53 and the Tray 3 Size PWB P J54 Repair or replace if necessary If the harnesses are in good condition replace the Tray 3 Size PWB REP 11 19 then the
113. EP 6 2 Replace in order until the problem is solved HVPS PWB REP 9 6 Print Cartridge Side Guide REP 7 5 BTR Assembly REP 7 1 Chute Transport Assembly REP 6 1 Laser Assembly REP 7 4 Print Engine Controller PWB REP 93 Fuser Assembly REP 6 2 MBF Chute Assembly REP 4 1 Registration Clutch REP 5 5 Tum Roll Assembly REP 11 8 IQ RAP 5 Vertical Deletions deletion is an area of the print where the image is missing or extremely light Vertical band deletions are deletions which extend down the page Figure 1 2125 3314 Figure 1 Vertical Deletions I Actions Check that the paper supply is dry and fresh Inspect the printer paper path for items such as staples paper clips and paper scraps Check installation of the Print Cartridge Check that the Print Cartridge ground contact points are clean Ensure there are no obstructions in the Laser path Check that rollers and other components in the paper path are clean and unobstructed Procedure Load fresh dry paper Run a test print The problem is still present YN Problem solved Install a new Print Cartridge Run a test print The problem is YN Problem solved present Inspect the laser beam path between the Laser Assembly and the Drum The laser beam path is free of obstructions YN Remove any obstructions from the laser beam path Inspect the paper path between feed and exit for contamination or obst
114. Engine Controller PWB The pattem will be used by ser vice personnel to identify repair and validate the operability of printer xerographics and paper handling from all paper sources options and output sources Test Print diagnostics wil allow for the following routines 10 Print the Test Print Input Tray selection all supported paper sizes 1h Output Tray selection Duplex selection 4 Display error message code when failure occurs Table 2 Table 1 summarizes the operation of the Control Panel keys in Test Print mode Table 1 Test Print Key Table Press key 2 or 6 to scroll through the items menu When the LCD display Input Tray press key 3 or 7 to view the selected option Press key 3 or 7 to cycle through all available input trays Press key 4 to select it Selected tray has an next to it Repeat step 8 for output tray selection and duplex or simplex selection When ready to print press key 2 or 6 until Print Pattern is displayed Then press key 4 to start printing During printing press key 0 for 1 second to stop printing Wait for message Ready to appear on the LCD Press key 4 to resume printing or key 0 to get back to the items Press key 1 or 5 to get back to the Main Menu selection of Component Test or NVM Con fig or Test Print Error and Jam Recovery During Test Print printer encounters problem It will halt printing and displays the problem found on the LCD panel Tabl
115. Engine Controller to the OCT PWB when PRES LE a P225 is Low DIRECT SOLOFF E m Signal Levels High 33V Low 0V MOTON Motor contra signal Tor the Drive Maior Assembly Direction Signal Levels High 33V Low 0V MEX INIGCT EXIT Signal from the OCT Exit Sensor Assembly This signal turns High when 7018 he paper actuates the OCT Exit Sensor Assemibl st i Figure 4 OCT PWB lt gt Stack Full Sensor OCT Home Sensor OCT Exit Sensor Assem Signal Levels High 33V Low 0V bly Direction Solenoid DIRECT SOLON Control signal or he Direction Solenoid This signal Ts High when the RUN dii x snl Gates ng DOT BUB dcc Sc Fld Gor Hon PARU EIRE OGT Exit Sensor Assembly and Direction Solenoid path Signal Levels High 3 3V Low 0V bw d Sue scale NOTFSTKOCT Signal rom the Stack Full Sensor This signal turns High continucusiy E rer z when the Exit Tray becomes to be full of paper Torna ame y Les FROTFSTR Signal fom the Stack Full Sensor that detects the installation of tha OCT Tis signal turns Low when the OCT is installed Signal Levels High 33V Low 0V HOWE Signal rom the OCT Home Sensor This signal delecis the Rame pasion Jot the Offset Roll Assembly Turning Low of this signal informs the OCT PW that the initiation of the Offset Roll Assembly is completed Signal Levels High 33V Low 0V Initial Issue 9272000 Wiring Data DocuPrint N2125 TH Offset Catch Tray
116. Exit Sensor and Rear Interlock Switch Assembly Table 7 shows the signal names for the Print Engine Controller PWB lt gt Exit Sensor and Rear Interlock Switch Assembly path Table 7 Signal Names Signal Name Description FFSTR Signal from The Stack Full Sensor This Signals Low OV when the Fu Stack Sensor is actuated and High 3 3 when deactuated PATENT MOT Signal rom the Fear Interlock Switch Assembly Goes Low 0V when the Cover Rear is open and breaks the 24VDC circuit for the Exit Motor Assembly Wiring Data 272000 Initial Issue Base Engine 744 DocuPrint N2125 Print Engine Controller PWB lt gt Size 1 PWB lt gt Feeder PWB lt gt Low Paper Sensor Stack Height Sensor Feed Clutch Assembly Turn Clutch Assembly and Motor Assembly Figure 12 Table 8 Table 9 size Option PWB i Pus ideo pises 3 1 P 333 Print Engine Low Paper Sensor 2 H ContolerPu 1 3 Wo Paper Sensor is ha hal Stack Height INO PAP2 2 Sensor 1 n LOW PA 10 SG gt 24 Feed 6 Era sh Si cae M B Reserved Te aan F o FEED M Em NO PAPI Ll Pa LOW PAPI C 284 o Tum Guen Sue 1 PWB Assy JE Flere pier S7 dE e 8 nuomoron l2 pipan E 3 Motor fE 4 ipe 4 El 35 5 c2 25 1 152 Feeder PWB
117. F Table 6 Table 6 Special Purpose Paper Supported for Paper Trays and MBF NOTE Supported paper weight is 60gsm 161b to 105gsm 28 Duplex Assembly optional for the 2125 printer enables printing on both sides of the 100 x 148mm note 3 3 9 x 5 8 29 Media recommended Envelope Feeder optional Transparency 216 x 276mm ES x TT Letter Xerox PIN 3 2780 UST Optional Envelope feeder for the N2125 printer enables the feeding of envelopes The 216 x 279mm 8 5 x 11 Letter 3M P N CG3300 table shows available paper sizes and stack capacity Table 4 210 x 297mm 8 25 x 11 7 A4 Xerox 3R91334 Europe rote 1 Xerox PIN JEOO1 Japan Table 4 Envelope Feeder 210 x 297mm 8 25 11 7 A4 Paper Se Stackable Capaciy Label 216 x 279mm 85 x TT Letter Xerox 3 4459 US e O EEF 175 envelopes Columbian Beard 216 279mm 8 5 x 11 Letter Avery Laser Labels PIN 5160 210 x 297mm 8 25 x 11 7 A4 Xerox PIN 3R97408 Europe Monarch SEF 75 envelopes Monroe brand 210 x 297mm 8 25 x 11 7 4 Xerox P N V860 Japan DESEE envelopes River Spes Envelope note 2 104 8 241 3 x95 Columbian Brand Com 10 CS SEF 50 envelopes River Series 98 4 x 190 5 3 87 x 7 5 Monroe Brand Monarch Japanese Oficial postcard TOO sheets 162 x 229mm 6 4 x9 C5 River series 02067 Postcard T00 sheets 110 x 220mm 4 3 x 8 7 Gummed Orker Media pim T maxi
118. Feed Clutch The 550 Sheet Feeder is nat feeding paper or not feeding paper at the correct time Procedure Enter Diagnostics and select Component Test Scroll to Confirm Tray 2 Feed Clutch or Confirm 3 Feed Clutch and press Enter You can hear the clutch eno YN Switch the printer power of Remove the Left Interface Cover REP 1 1 Left Cover REP 12 and the Left Plate Assembly REP 1 11 Enter diagnostics and select Component Test Scroll to Confirm Tray 2 Feed Clutch or Confirm Tray 3 Feed Clutch On the Print Engine Controller PWB for Tray 2 check the voltage between pin 13 and frame around for Tray 8 check the voltage between PLISS pin 14 and rame ground The volt age is 24VDC YON Remove the Sheet Feeder Drive Assembly REP 11 6 for the affected feeder Dis connect P J65 from the Feed Clutch Measure the resistance between the pins the feed clutch The resistance is 140 to 170 ohms YN Pete Piper Feed uen EP 1110 Replace the Feeder PWB REP 11 9 If the problem persists replace the Size PWB REP 11 19 Press the Enter key The voltage drops from 24VDC to 0 0VDC YON Pepe re Pir Engine one PWB REP 23 Replace the Paper Feed Clutch REP 11 10 Remove the Sheet Feeder Drive Assembly REP 11 6 for the affected feeder Check the Paper Feed Rolls for contamination and wear The Paper Feed Rolls are clean and in good condi tion Y N Replace the Paper Feed Rolls REP 11 11
119. Feed Solenoid and press Enter The MBF Feed Rolls make one complete revolution then stop YN Replace the MBF Feed Solenoid REP 4 9 The MBF Feed Solenoid appears to operate correctly If the problem persists replace the Print Engine Controller PWB REP 9 3 RAP 42 System Controller Isolation Procedure Switch the printer power of Disconnect cables connected to the rear of the System Control ler PWB Remove the Left Interface Cover REP 1 1 Remove all options from tho Systom Controller PWB Switch the printer power on The printer boots up correctly and Ready is displayed on the Control Panel if no options are installed follow the No path YN Switch the printer power off Remove then reinstall the System Controller PWB REP 9 2 to reseat the connection with the Print Engine Controller PWB Switch the printer power The printer boots up correctly and Ready is displayed on the Control Panel Replace the System Controller PWB REP 9 2 Problem Solved Switch the printer power of Reinstall one of the removed options or cables Switch the printer power on The printer boots up correctly and Ready is displayed on the Control Panel Y N rie tincid Repeat the last step with the next option or cable until the problem is found Status Indicator Repair Analysis Procedures RAP 41 RAP 42 02 2000 238 Initial Issue DocuPrint N2125 RAP 43 HVPS Assembly Procedure Open the Front Cover
120. Flow of the Duplex Assembly Function of Major Components Figure 4 Duplex Roll Assemblies Rear Middle and Front Transfers the paper through the Duplex Assembly Duplex Motor Assembly Generates the drive to the Duplex Assembly Gears Transmits the drive power generated by the Duplex Motor Assembly to the Duplex Roll Assem by Synchronous Belt Transmis the drive power from the Middle Roll Assembly to the Front Roll Assembly Duplex Sensor Assembly Detects paper entering and leaving the Duplex Assembly Home Position Sensor Detects the positon of the Face Up Tray Duplex PWB Receives the control signals for the Duplex Motor Assembly from the Print Engine Controller PWB and provides the phase signals to operate the Duplex Motor Assembly Transmis the detection signals of the Duplex Sensor Assembly and the Duplex Sensor to the Print Engine Controller PWB Provides 24VDC and 3 3VDC for the Duplex Motor Assembly and Sensors Duplex PWB Duplex Motor Assy Duplex Gear Home 17 Pulley Position Sensor Synchronous Belt Duplex Gear 17 Pulley Rear Roll Assy Duplex Sensor Assy Front Roll Assy Middle Roll Assy eo Figure 4 The Major Components of the Duplex Assembly Duplex Printing Methods Single Sheet Batch Printing Involving a single sheet of paper The first side of the page is printed then the second side is printed and the page is sent to the output tray General Proce
121. Harness Assembly 15 Front Chute Assembly 16 Turn Chute 17 Roll 7 18 Feeder Cover 19 60079320 Feeder Assembly with 20 28 20 Feed Shaft 21 Bearing 22 Nudger Support Assembly 23 Nudger Chute 24 Gear Clutch 25 OW Clutch Assembly 26 Roll Assembly 27 Gear 25T 28 Gear 31T 28 Nudger Spring 30 Gear 4 E Gear2 32 Gear Cover 33 Bracket 34 Gear3 35 Gear 36 160K52781 Feeder PWB 37 121KI9010 Feed Clutch Assembly Sa lt Bearing 39 N Motor Harness Assembly 40 Socket 41 600K79550 Feed Roll Kit item 26 quantity 3 42 600K79640 Socket amp Harness Kit with 39 40 6O0K79650 Actuator amp Support Kit with 11 12 44 22056900 Feder Assembly 1 Kit with 1 40 45 108R00330 Feed Roll Usage Kit tom 41 quantity 2 S 600 79660 Hardware Kit Includes Screw Initial Issue 022000 Parts ist DocuPrint N2125 518 PL 11 2 PL 12 1 Envelope Feeder 1 of 2 Hem Part Description 1 2 29 1 Envelope Feeder Assembly with 2 23 2 84614452 Top Chute 3 Retard Spring 4 Retard Holder 5 Torque 29 Clutch Assembly 6 Retard Roll Assembly with 7 7 Retard Roll 8 Feeder Bearing 9 Pinch Spring 10 59E93940 Exit Pinch Rol 11 31 93291 Weight Arm 12 Weight Holder 13 Envelope Left Side Guide 14 Envelope Right Side Guide 15 Envelope Feeder Sub Assembly 16 Pinion Gear 17 Bottom Cover 18 Tray Extension 19 Envelope Pinch Roll 2000 Sensor Harness Assembly 21 130K60390 Exi Sensor
122. Lead ING Faut Enty CSMBF Ada Paper MBF is out ot paper Toad paper ite MBF Go to RAP 50 Remove Ouipat rom OF Fault Enty CS OCT Tay Ful E prints are dalvered fo the Top Way Empty OCT Tay set Bin after the OCT Full Stack Sensor is Go to RAP 59 actuated Remove Output from Std Fault Entry C5 Top Tray Full Top Tray is declared full when 5 prints Empty Top Tray Bin delivered to the top tray ater the Go to RAP 6 Full Stack Sensor is actuated Tay Emply Fault Entry 5 1 Add Pap Tay 1 is out of paper Load paper into Tray Go to Rap 5 Tay 2 Emply Fault Entry 5 2 Pap Tray 2 is out of paper Load paper into Tray Z Go to Rap 5 Tay 3 Emply Fault Entry 5 SAdd Pap Tray Sis out of paper Load paper into Tray 3 Go to Rap 5 Disk Error DT NI Hard Drive error was detected Power OTO Format Disk Format Hard Drive Replace Hard Drive PL 10 1 Replace System Controller PWB REP 9 2 Format Failed Dz IA Cannot format disk disk locked via Customer Unlock Disk Disk Locked PJL or SNMP Command Replace Hard Disk PL 10 1 Format Failed D3 IA Cannot put disk in factory default Customer Unlock Disk Disk Locked attempt to initialize disk after itis Replace Hard Disk PL 10 1 locked Tay 1 Feed Jam Way TJam E201 EZ 0 Feed Jam Paper arrives at Registration Sensor Open Tay 1 Open Tray 1 too early Open Front Cover Clear
123. List on PL 12 2 Removal WARNING Switch off the power and disconnect the Power Cord Remove the Envelope Feeder trom the printer Remove the Bottom Cover REP 15 1 Remove the No Paper Actuator REP 13 9 Release the three locking tabs that secure the No Paper Sensor Figure 1 Disconnect P J415 from the sensor Figure 1 Figure 1 No Paper Sensor Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 02 2000 Repair Adjustment 4 107 REP 13 9 REP 13 10 REP 13 11 Gear Cover REP 13 12 Feed Clutch Parts List on PL 12 2 Parts List on PL 12 2 Removal Removal WARNING WARNING Switch oft the power and disconnect the Power Cord Switch off the power and disconnect the Power Cord 1 Remove the Envelope Feeder from the printer 1 Remove the Envelope Feeder from the printer 2 Remove the Bottom Cover REP 15 1 2 Remove the Bottom Cover REP 15 1 3 Remove the Top Chute REP 13 2 3 Remove the Top Chute REP 13 2 4 Remove the Envelope Feeder PWB REP 13 3 4 Remove the Envelope Feeder PWB REP 13 3 5 Remove the two screws that secure the Gear Cover on the feeder Figure 1 5 Remove the Gear Cover REP 13 11 6 Disconnect P J416 from the Feed Clutch Figure 1 6 Remove the Torque Clutch Figure 1 7 Remove the cover 7 Remove the Feed Clutch Figure 2 6 2128 4288 Figure 1 Torque Clutch Figure 1 Gear Cover Replacement 1 Reinstall the components in the reverse o
124. MM installed in slot 3 with a new DIMM PL 10 1 Replace the System Controller PWB REP 9 2 RAP 47 DIMM 3 0103 Procedure Switch the printer power off Remove the Left Interface Cover REP 1 1 Remove the DIMM installed in Slot 3 slot 3 is the top DIMM slot Switch the printer power on The error code reappears YN Switch the printer power off Install the removed DIMM in Slot 2 bottom DIMM slot Switch the printer power on The error code reappears YN Switch the printer power Remove DIMM from Slot 2 bottom DIMM slot and install the DIMM in slot 3 top DIMM slot Switch the printer power on The error code reappears YN Attribute the problem to a poor connection between the DIMM and the System Controller PWB Go to Initial Actions Replace the System Controller PWB REP 9 2 Replace the DIMM installed in slot 2 with a new DIMM PL 10 1 Replace the System Controller PWB REP 9 2 Initial Issue DocuPrint N2125 02 2000 Analysis Procedures RAP 46 RAP 47 241 RAP 48 Exit Sensor Procedure Open the printer Rear Cover Remove the Duplex Module if installed Open the Fuser Access Gover and check the Exit Sensor Actuator Check that the actuator moves smoothly and is not broken Make sure the actuator blocks the Exit Sensor when the access cover is closed The actuator is in good condition and moves smoothly YN Replace the Fuser Assembly REP 6 2 Enter Diagnostics and select Component Test
125. N Go to RAP 62 Replace the Print Engine Controller PWB REP 9 3 Remove the Envelope Feeder trom the Printer Remove the Bottom Cover REP 13 1 and the Top Chute REP 13 2 Disconnect P J413 from the Envelope Feeder PWB Measure the resistance between Pins 1 and 2 on the disconnected plug The resistance is 170 to 190 ohms YN Replace the Envelope Feed Clutch REP 13 12 Replace the Envelope Feeder PWB REP 13 3 Check the Envelope Feed Belts for wear and contamination Check for belts slipping Repair or replace as necessary If Belts are in good condition and not slipping replace the Envelope Feed Clutch REP 13 12 Initial Issue DocuPrint N2125 02 2000 2 53 Analysis Procedures RAP 62 RAP 63 RAP 64 Envelope No Paper Sensor Procedure Enter Diagnostics and select Component Test Scroll to Sensor Input Test and press Enter Press and release the Envelope Feeder No Paper Sensor Actuator The number on the LCD increments each time you press and release the Actuator Y N Switch the Printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Switch the Printer power on On the Print Engine Controller PWB check the voltage between P J23 Pin 4 and the frame ground The voltage is 0 0VDC YN Go to RAP RAP 62 Check the voltage between P J23 Pin 3 and frame ground The voltage is 3 3 with the Envelope Feeder No Paper Sensor de actuated a
126. NG Switch off the power and disconnect the Power Cord Remove the Offset Catch Tray REP 10 1 Remove the Exit Tray Extension REP 10 2 Remove the Exit Tray REP 10 3 Turn the Offset Catch Tray upside down Remove the Lower Cover REP 10 5 Hold open the Rear Cover Remove the Inner Exit Chute Assembly REP 10 6 Remove the Static Eliminator REP 10 9 Remove the Stack Full Actuator from the two retaining clips Figure 1 2128 4239 Figure 1 Stack Full Sensor Actuator Replacement 1 Reinstall the components in the reverse order REP 10 13 Stack Full Sensor Parts List on PL 14 2 Removal WARNING Switch off the power and disconnect the Power Cord Remove the Offset Catch Tray REP 10 1 Remove the Exit Tray Extension REP 10 2 Remove the Exit Tray REP 10 3 Turn the Offset Catch Tray upside down Remove the Lower Cover REP 10 5 Hold open the Rear Cover Remove the Inner Exit Chute Assembly REP 10 5 Remove the Offset Catch Tray PWB REP 10 7 Disconnect P J225 from the Stack Full Sensor Figure 1 10 Release the four lacking tabs that secure the sensor Figure 1 Remove the sensor Figure 1 Stack Full Sensor Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 02 2000 473 Repair Adjustment REP 10 12 REP 10 13 REP 10 14 Offset Roll Assembly 16 Parts List on PL 14 2 Removal WARNING Switch off the power and disconnect the Power Cord
127. P 1 2 and the Left Plate Assembly REP 1 11 Switch the printer power on Check the volt age between pin 10 on the Print Engine Controller PWB and frame ground The voltage is 24 0 VDC YN Check the voltage between P J28 pin 1 on the Print Engine Controller PWB and frame ground The voltage is 24 0 VDC YN Replace the LVPS REP 9 5 Replace the Print Engine Controller PWB REP 9 3 Enter Diagnostics and select Component Test Scroll to ROS Motor Operation Check the voltage between P J21 pin 12 and frame ground Press the Enter key The voltage drops from 5 0 VDC to 0 0 VDC YN Replace the Print Engine Controller PWB REP 9 3 Replace the Laser Assembly REP 7 4 Switch the printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Switch the printer power on Check the voltage between P21 pin 6 and frame ground The voltage is 5 0VDC YN Check the voltage between P J28 pin 7 and frame ground The voltage is 5 0VDC YN Replace the LVPS REP 9 5 Check the voltage between P J25 pin 3 and frame ground The voltage is 5 0VDC YN Go to RAP 36 Replace the Print Engine Controller PWB REP Measure the voltage between P J21 pin 9 and frame ground The voltage is 5 0VDC YN Replace the Print Engine Controller PWB REP Replace the Laser Assembly REP 7 4 RAP 31 Fuser Assembly Procedure WARNING If the printer has been swi
128. P 24 RAP 25 Malfunctioning LCD LED There is an erratic display on LCD LED Procedure Switch the printer power off Remove any options connected to the System Controller PWB Disconnect P J18 from the System Controller PWB Switch the printer power on On the Sys tem Controller PWB check the following voltages between P J18 and frame ground Table 1 win puts With Pisa P18 Disconnected Connected Pint 3 EES Pind LALE OVD Pind T4VDC EES Pins LALE OVD Pind 3310 zavo Pme Tav 3D Pin 5300 EES Pin jo EEL All the voltages listed in the column with P J18 disconnected are correct On the System Controller PWB check the voltage on P J13 between pins 1 and 2 The voltage is 3 3VDC YN Switch the printer power off Disconnect P J13 from the System Controller PWB Switch the printer power on Check the voltage between pins 1 and 2 on the discon nected plug The voltage is 3 3VDC YN On the LVPS check the voltage on P J282 between pins 1 and 2 The voltage is 3 3VDC YN Replace the LVPS REP 9 5 Repair or replace the harness between the LVPS and the System Controller PWB PL 10 1 Replace the System Controller PWB REP 9 2 On the System Controller PWB check the voltage on P J13 between pins 3 and 4 The voltage is 5 0VDC YN Switch the printer power off Disconnect P J13 from the System Controller PWB Switch the printer power on Check the volta
129. P 4 8 REP 4 9 434 DocuPrint N2125 REP 4 10 Envelope Connector Assembly Parts List on PL 4 1 Removal WARNING Switch off the power and disconnect the Power Cord 7 Remove Tray 1 Remove the Left interlace Cover Assembly REP 1 1 Remove the Front Cover Assembly REP 1 5 Remove the MBF Chute Assembly REP 4 1 Remove the two screws that serve the Envelope Connector Assembly in the Chute Assembly Figure 1 6 Side the Envelope Connector Assembly and the Mounting to the left and remove Figure 1 7 Remove the Envelope connector Assembly trom the MBF Assembly 2128 4060 Figure 1 Envelope Connector Assembly Replacement 1 Reinstall the components in the reverse order Initial Issue mmm DocuPrint N2125 435 Repair Adjustment REP 4 10 Repair Adjustment 02 2000 Initial issue REP 4 10 436 DocuPrint N2125 REP 5 1 Paper Handler Assembly Parts List on PL 5 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left Interface Cover Assembly REP 1 1 Remove the Front Cover Assembly REP 1 6 Remove the Lett Front Cover REP 1 7 Remove the MBF Chute Assembly REP 4 1 Using long nose pliers remove Shaft 14 from the Printer Figure 1 Remove Gear 14 Figure 2 Disconnect P J43 and 42 trom the Connector PWB Figure 3 Remove the five screws that secure the Paper Handler Assembly Figure 3 0 Lift the right end slightly and remove the Paper Handler Figure 4
130. P 62 Envelope Feeder Not Recognized RAP 63 Envelope Feed Clutch 64 Envelope No Paper Sensor 65 Load Envelope C5 66 Envelope Feeder Jam E2 238 239 2 39 240 241 241 242 242 243 243 245 245 2 46 247 247 249 250 250 251 251 253 253 254 254 255 Initial Issue DocuPrint N2125 02 2000 24 Status Indicator Repair Analysis Procedures Status Indicator Repair Analysis Procedures 02 2000 Initial Issue 22 DocuPrint N2125 Introduction The Repair Analysis Procedures section is used to isolate and identity problems to a faulty component or subassembly It contains the Introduction display message table error code table and the Repair Analysis Procedures RAPS Use the Error Code Tables when messages or error codes are displayed or printed in a report The Repair Analysis Procedures RAPs are accessed from Section 1 system checks or addi tional checks There are two types of RAPs Status Indicator SI RAPs contained in this sec tion and Image Quality IQ RAPs located in Section 3 wil normally isolate a problem to a specific component or subassembly excluding the wire harnesses In the YIN Yes No steps of the RAPS a Yes No response will either lead you to the next step will indicate a corrective action When the indicated corrective action has been completed go to Section 1 and restart the System Check to verify that the problem has been correc
131. Paper Path Go to RAP 8 Tay 2 Feed Jam Way 2 Jam E202 E20 Feed Jam Paper arrives ai Registration Sensor Open Tray 2 Open Tray 2 too early Open Front Cover Clear Paper Path RAP amp Initial Issue DocuPrint N2125 02 2000 25 Status Indicator Repair Analysis Procedures Error Code Tables Table 1 Error Code Table General Into Control Panel Message Fault History Entry Diagnostic Message Error Description Action Way 3 Feed Jam Ways Jam EES EEO Feed Jam Paper arrives at Registration Sensor Open Tray 3 Open Tray 3 too early Open Front Cover Clear Paper Path Go to RAP 8 Envelope Feed Jam Envelope Feeder Jan JEZE EEO Feed lam Paper arrives at Registration Sensor Remove Envelope Feeder Remove Envelopes ioo eariy Open Front Cover Clear Paper Path Go to RAP 6 MEF Feed Jam VBF Jam EN EXD Feed Jam Paper arrives at Registration Sensor Open Front Cover Remove All Paper too eariy Clear Paper Path Go to RAP 7 Envelope Feed Jam Envelope Feeder Jan EZ TE EDT Feed Jam Paper does not arrive at Regisiralion Remove Envelope Feeder Remove all Envelopes Sensor position within a specified Open Front Cover ime Clear Paper Path Go to RAP 65 Misie SF Jam EET Feed dam Paper does arrive at Regisiralion Open Front Cover or Feeder Remove All Paper Sensor position within a specified
132. REP 11 6 Disconnect P J661 from the Low Paper Sensor Figure 1 Release the five hooks and remove the Sensor Figure 1 Figure 1 Low Paper Sensor Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 02 2000 487 Repair Adjustment REP 11 13 REP 11 14 REP 11 15 Feeder Socket Parts List on PL 3 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the Tray 2 Remove the two screws that secure the Socket to the Feeder in the printer Figure 1 3 It may be necessary to use a scribe or small screwdriver to lift the locking tabs to discon nect PAT 4 Disconnect P J71 from the Socket and remove Figure 1 2025 421 Figure 1 Feeder Socket Replacement 1 Reinstall the components in the reverse order REP 11 16 550 Sheet Feeder Size Harness Assembly Parts List on PL 11 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove the printer trom the 550 Sheet Feeder REP 11 1 Remove the Tray from the Feeder Remove the 550 Sheet Feeder Left Cover REP 11 3 Remove the two screws that secure the 550 Sheet Feeder Size Harness Assembly to the 550 Sheet Feeder and remove from the wiring harness Figure 1 Remove the Feeder Gear Bracket Assembly REP 11 4 Remove the Top Plate REP 11 5 Remove the Feeder Drive Assembly REP 11 6 Using a small screwdriver push the locking tab that secures the Size Sensor Housing to t
133. REP 3 2 Turn Roll Assembly Parts List on PL 3 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left Interface Cover Assembly REP 1 1 Remove the Left Cover REP 1 2 Remove the Front Cover Assembly REP 1 6 Remove the Left Front Cover REP 1 7 Remove the Left Plate Assembly REP 1 11 Remove the Plate Handle REP 1 12 Open Rear Door Remove the Top Cover Assembly REP 1 4 Remove the Right Cover REP 1 5 Remove the LVPS PWB REP 9 5 Remove the Paper Feeder REP 3 1 Disconnect P J64 on the Feeder PWB Figure 1 Release cable from all cable clamps Remove the four screws that secure the Turn Roll Assembly to the Paper Feeder Assem bly Figure 1 Remove the Turn Roll Assembly together with the Extension Spring and Chute Spring Figure 1 Figure 1 Turn Clutch Assembly Replacement Reinstall the components in the reverse order Initial Issue DocuPrint N2125 02 2000 Repair Adjustment REP 3 1 REP 3 2 REP 3 3 Tray 1 No Paper Actuator Parts List on PL 3 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left Interface Cover Assembly REP 1 1 3 Remove the Left Cover REP 1 2 4 Remove the Front Cover Assembly REP 1 6 5 Remove the Left Front Cover REP 1 7 6 Remove the Left Plate Assembly REP 1 11 7 Remove the Plate Handle REP 1 12 Open Rear Door 9 Remove the Top Cover Assemb
134. REP 4 8 MBF No Paper Sensor Parts List on PL 4 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left Interface Cover Assembly REP 1 1 Remove the Front Cover Assembly REP 1 5 Remove the Left Front Cover REP 1 7 Remove the MBF Chute Assembly REP 4 1 Remove the MBF Feed Assembly REP 4 2 Open the Bottom Tray Pick Up Figure 1 Remove the MBF Bottom Tray Spring from the two studs on the MBF Chute Assembly Figure 1 9 Release the five hooks that secures the No Paper Sensor and remove Figure 2 10 Disconnect P J45t from the No Paper Sensor Figure 2 Figure 1 Bottom Tray Pick Up Initial Issue DocuPrint N2125 02 2000 433 Repair Adjustment REP 4 7 REP 4 8 REP 4 9 Pick Up Solenoid Parts List on PL 4 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left Interface Cover Assembly REP 1 1 3 Remove the Front Cover Assembly REP 1 6 4 Remove the Left Front Cover REP 1 7 5 Remove the MBF Chute Assembly REP 4 1 6 Remove the screw that secures the Pick Up Solenoid to the MBF Chute Assembly Figure 7 Remove the solenoid Figure 1 Figure 2 MBF No Paper Sensor Replacement 1 Reinstall the components in the reverse order Figure 1 Pick Up Solenoid Replacement 1 Reinstall the components in the reverse order Repair Adjustment 0212000 Initial Issue RE
135. REP 6 2 Goto RAP 44 Problem solved 1Q RAP 8 Horizontal Streaks There are black lines running horizontally across the page at a right angle to the direction of paper travel Figure 1 Lead Edge 2125 3517 Check that the paper supply is dry and fresh Inspect the printer paper path for items such as staples paper clips and paper scraps Check installation of the Print Cartridge Check that the Print Cartridge ground contact points are clean Procedure Enter Diagnostics and select Test Print Scroll to Print Pattern and press Enter 4 Run five test prints The test prints have horizontal streaks YN Exit diagnostics and enter the Menu Mode Print a Config Sheet The prints have hori zontal streaks YN The problem appears to be with the host computer or the cables If the problems per sist replace the System Controller PWB REP 9 2 Remove and reseat the System Controller PWB If the problems persist replace the Sys tem Controller PWB REP 8 2 Install a new Print Cartridge Run a test print The horizontal streaks are gone YN Remove the Print Cartridge Inspect the Metal Grounding Contacts on the Print Cartridge Side Guide The Metal Grounding Contacts are intact and is free of contamination YN Reform or clean the Metal Grounding Contacts so it makes better contact with the drum shaft or replace the Print Cartridge Side Guide REP 7 5 Image Quality Repair Analysis Procedu
136. REP 9 12 466 DocuPrint N2125 REP 10 1 Offset Catch Tray OCT REP 10 2 Exit Tray Extension Parts List on PL 14 1 Parts List on PL 14 1 Removal Removal WARNING WARNING Switch off the power and disconnect the Power Cord Switch off the power and disconnect the Power Cord 1 Open the printer Rear Cover 1 Open the Exit Tray Extension 2 Press the two locking tabs at the rear of the Offset Catch Tray Figure 1 2 Slide the tray to the left 3 Liftthe rear of the Offset Catch Tray approximately 1 inch 25mm 3 Carefully deflect the center of the tray until the right hinge is free Figure 1 4 Slide the Offset Catch Tray toward the rear and remove Figure 1 4 Slide the tray to the right and remove Figure 1 Figure 1 Exit Tray Extension Replacement 1 Reinstall the components in the reverse order Figure 1 Offset Catch Tray Replacement 1 Reinstall the components in the reverse order Initial Issue 0212000 Repair Adjustment DocuPrint N2125 487 REP 10 1 REP 10 2 REP 10 3 Exit Tray Parts List on PL 14 1 Removal WARNING Switch oft the power and disconnect the Power Cord Remove the Exit Tray Extension REP 10 2 Squeeze the upper end of the Paper Weight and remove Figure 1 Slide the tray to the left Push the right hinge pin in until it is free of the Offset Catch Tray Figure 2 Push the left hinge pin in until it is free of the Offset Catch Tray Figure 2 Remove the Exit Tray 2
137. Rail Left Duplex Guide Rail Right Rear Cover Assembly with 1 9 Hardware Kit Includes Screw with 1 9 Initial Issue DocuPrint N2125 02 2000 55 Parts list PL 1 2 PL 1 3 Covers 3 of 3 Options Par Description T cei Ratt Paceup Cover Ariani with 2 15 2 Latch Spring 5 Lo Lateh ith 215 i Right Latch 1 5 Latch Gover 6 Rear Cover 7 Face up Sub Tay Face up Main Eliminator 10 Pinch Spring i Pinch Roll 2 Direction Arm 18 ak14991 Chute Assembly ia Right Stopper Pet 15 Face up Ground Spring 18 SE46120 igh Stopper 17 00K79830 Gap Kit quantity 2 S 600K79660 Hardware Ki Includes Screw intial Issue Parisiis DocuPrint 2125 56 PL 1 3 PL 2 1 Tray 1 1 of 2 Mem Descri 1 with 2 20 1 109RO0448 Cassette Assembly with 2 20 and PL22 2 Bottom Plate Assembly 3 Customer Size Knob 4 Custom Size Plate 5 End Guide Assembly B Extension Housing 7 Rack Slide 8 Extension Spring 9 Latch Spring 10 Size Plate 11 Base Extension 12 Left Side Guide Assembly 13 Right Side Guide Assembly 14 Link 15 Tray 1 Base 16 Rack 17 Pinion 18 Sub Cassette Assembly 19 Tray 1 Actuator en Actuator Cover S 600K79660 Hardware Kit Includes Screw 5004 Initial Issue 0212000 Parts list DocuPrint N2125 57 PL2 1 PL 2 2 Tray 1 2 of 2 Hem Part 5K82890 600K79550 OQ wees 10 809E11830 Descript
138. Removal WARNING Switch off the power and disconnect the Power Cord Remove the Offset Catch Tray REP 10 1 Remove the Exit Tray Extension REP 10 2 Remove the Exit Tray REP 10 3 Turn the Offset Catch Tray upside down Remove the Lower Cover REP 10 5 Hold open the Rear Cover Remove the Inner Exit Chute Assembly REP 10 5 Remove the two screws that secure the motor to the Inner Exit Chute Assembly Figure 1 9 Disconnect P J210 from the Offset Catch Tray PWB and remove the motor Figure 1 REP 10 9 Static Eliminator Parts List on PL 14 2 Removal WARNING Switch off the power and disconnect the Power Cord Remove the Offset Catch Tray REP 10 1 Remove the Exit Tray Extension REP 10 2 Remove the Exit Tray REP 10 3 Turn the Offset Catch Tray upside down Remove the Lower Cover REP 10 5 Hold open the Rear Cover Remove the Inner Exit Chute Assembly REP 10 6 Remove the three screws that secure the Static Eliminator to the Inner Exit Chute Figure 1 9 Remove the Static Eliminator Figure 1 Figure 1 Motor Drive Assembly Replacement 1 Install the motor with both tabs touching the plastic standolts 2 The ground wire on top and the earth plate at the bottom should be on the outside Figure 2 3 Reinstall the components in the reverse order Figure 1 Static El ator Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 02 2000 Repair Adjustmen
139. Remove Tray 1 Remove the Left Interface Cover Assembly REP 1 1 Remove the Front Cover Assembly REP 1 6 Remove the Left Front Cover REP 1 7 Remove the MBF Chute Assembly REP 4 1 Remove the MBF Pick Up Gear Spring Figure 1 Lift the locking tab and remove the Pick Up Gear Figure 1 Lif the locking tab and slide the left MBF Pick Up Cam to the right Figure 2 Lift the locking tab and slide the right MBF Pick Up Gam to the left Figure 2 Aligning the pin in the shaft with the slit the assembly side the MBF Feed Roll Assem bly to the left Figure 3 Lift the right end of the shaft and remove Figure 3 Figure 1 MBF Pick Up Gear Spring Initial Issue DocuPrint N2125 02 2000 429 Repair Adjustment REP 4 1 REP 4 2 2125 AMT Figure 3 MBF Roll Assembly Replacement 1 Reinstall the components in the reverse order REP 4 3 MBF Feed Roll Parts List on PL 4 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Open the Front Cover 2 Liftthe locking tab and slide the right core to the right Figure 1 3 Slide the MBF Feed Roll to the right and remove Figure 1 Figure 1 MBF Feed Roll Replacement NOTE Note the arrow on the side of the Feed Roll Install with the arrow pointing in the direc tion af rotation 1 Reinstall the components in the reverse order Repair Adjustment REP 4 2 REP 4 3 0212000 Initial Is
140. Remove the Print Cartridge Inspect contacts on the Transport Chute Assembly and the terminals on the Print Cartridge The terminals are in good condition and contacting properly when the cartridge is installed YN Replace the Transport Chute Assembly REP 6 1 or the Print Cartridge PL 8 1 as essary Cheat the Front Cover Interlock Switch Enter Diagnostics and select Component Test Scroll to each of the high voltage tests Table 1 Measure the voltage between the contact listed and frame ground Press the Enter Key Table 1 High Voltage Power Supply Readings High Voltage Test Contact Reading Targa Rol DC Rear Transport Chute Pin Contact 425 340 VOC Charge Roll AC Rear Transport Chute Pin Contact 1000 100 VAC Dev Bias DC Front Transport Chute Pin Contact 17323 VDC Dev Bias AC Front Transport Chute Pin Contact 555 85 VAG BTR BTR Roll Bushing FETES VOC BR BTR Roll Bushing o Voc Detack Saw Saw 920 TOO VO At least one of the voltages is correct YN Switch the printer power off Remove the Lett Interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Switch the printer power on On the Print Engine Contraller PWB check the voltage between P J26 pin 2 and frame ground The voltage is 24VDC YN Replace the Print Engine Controller PWB REP 9 3 Replace the HVPS REP 9 8 All the voltages are correct YN Replace the P
141. S W Leesburg VA 20175 2910 Prepared for Network Printers Business Unit Customer and Marketing Focus 701 South Aviation Blvd El Segundo California 90245 Copyright 2000 by Xerox Corporation Xerox and DocuPrint N2125 are registered trademarks of Xerox Corporation Copyright 2000 Xerox Corporation All rights reserved Copyright protection claimed includes all forms of matters of copyrightable materials and information now allowed by statutory or judicial law or hereinafter granted including without limitation material generated from the software programs which are displayed on the screen such as styles templates icons screen displays looks etc Xerox and all product names and product numbers mentioned in this publication are trademarks Adobe and PostScript are trademarks of Adobe Systems Incorporated PCL HP LaserJet and Intellifont are trademarks of Hewlett Packard Company IBM is a trademark of International Business Machines Corporation Microsoft Microsoft Windows Microsoft Word MS and MS DOS are trademarks of Microsoft Corporation Univers is a trademark of Linotype AG or its subsidiaries WordPerfect is a trademark of WordPerfect Corporation Centronics is a trademark of Centronics Corporation Macintosh and TrueType are trademarks of Apple Computer Incorporated All other product names are trademarks tradenames of their respective owners PCL PCL 5e and PCL 6 are trademarks of Hewlett Packard Company This pr
142. Scroll to process Tray X Proc Dir or scan Tray X Scan Dir adjustment for the desired tray L Press the Value Key 3 or 7 to display the current seting 5 Use the 3 or 7 keys to set the new value Each increment of change equals 0 5mm NOTE In the scan direction increasing the value moves the image to the right and Fight 1107 Test Petters decreasing the value moves the image to the left In the process direction increasing the value moves the image toward tho edge and decreasing the value moves tho image towards the lead edge Initial Issue 272000 Repair Adjustment DocuPrint 2125 4115 ADJ 1 1 Repair Adjustment 022000 Initial issue ADJ 1 1 4 116 DocuPrint N2125 5 Parts list Introduction 53 Duplex 1 Covers 1 of 3 PL 13 1 Duplex 1 of 2 52 PL 1 1 Covers 1 of 3 54 Duplex 2 Covers 2 of 3 PL 13 2 Duplex 2 of 2 52 PL 1 2 Covers 2013 55 Offset Catch Tray 1 Covers 3 of 2 PL 14 1 Offset Catch Tray 1 of 2 528 PL 1 3 Covers 3 of 3 Options 56 Offset Catch Tray 2 Paper Cases 1 PL 14 2 Offset Catch Tray 2 of 2 524 PL 2 1 Tray 1 1 of 2 57 Paper Cassette 2 PL 2 2 Tray 1 202 58 Paper Feeder PL3 1 Paper Feeder 5 MBF Chute PL 4 1 MBF Chute 510 Paper Transport PL 5 1 Paper Handler Assembly 51 Chute Transport amp Fuser PL 6 1 Chute Transport amp Fuser 512 Exit PL7 1 Exit 513 Drive amp PL amp 1 Drive amp Xerographics 514 Frame amp Siz
143. Tray 3 Feeder PWB REP 11 9 Replace the following componens in order until the problem is resolved Stack Height Sensor REP 11 13 Feeder PWB REP 11 9 Size PWB REP 11 19 Print Engine Controller PWB REP Remove the Tray 2 from the paper feeder Check the voltage between the lower terminal the Paper Feeder Connector and frame ground The voltage is 24VDC YN Check the wiring harnesses between the Tray 1 Size PWB P JS1 and the Tray 2 Size PWB P J52 Repair or replace if necessary I the harnesses are in good con dition replace the Tray 2 Size PWB REP 11 19 then the Tray 2 Feeder PWB REP 11 9 Replace the following components in order until the problem is resolved Stack Height Sensor REP 11 13 Feeder PWB REP 11 9 Size PWB REP 11 19 Print Engine Controller PWB REP 9 3 Go to RAP 37 Remove the Tray now occupying the Tray 1 position and continue with RAP 37 Status Indicator Repair Analysis Procedures pum RAP 4 244 Initial Issue DocuPrint N2125 RAP 5 Tray Empty C5 Procedure The problem appears when using Tray 2 or Tray 3 YN Check the paper level in Tray 1 There is paper in Tray 1 YN Load paper into Tray 1 Enter diagnostics and select Test Print Run a test print from the Tray 1 The CS error code reappears YN Return to Initial Actions and restart Remove Tray 1 from the printer Remove all paper from the tray Reinsert Tray 1 into the printer From t
144. WB 460 REP 9 7 Connector PWB 461 REP 9 8 Main Switch 462 REP 9 9 Front Interlock Switch Assembly 463 REP 9 10 Rear interlock Switch Assembly 463 REP 9 11 Offset Catch Tray Harness Assembly 464 REP 9 12 Duplex Harness Assembly 464 Offsetting Catch Tray OCT REP 10 1 Offset Catch Tray OCT 487 REP 10 2 Exit Tray Extension 487 REP 10 3 Exit Tray 488 Initial Issue DocuPrint N2125 02 2000 Repair Adjustment REP 10 4 Rear Cover Assembly 469 12 14 Face Up Tray Sensor 4101 REP 10 5 Lower Cover 469 REP 10 6 Inner Exit Chute Assembly 470 Envelope Feeder REP 10 7 Offset Catch Tray PWB 470 REP 13 1 Bottom Cover 4103 REP 10 8 Motor Drive Assembly 471 REP 13 2 Top Chute 4108 REP 10 9 Static Eliminator 471 REP 13 3 Envelope Feeder PWB 4104 REP 10 10 Direction Solenoid 472 184 Retard Roll Assembly 4104 REP 10 11 Exit Sensor Assembly 72 REP 13 5 Exit Pinch Rol 4105 REP 10 12 Stack Full Sensor Actuator 473 REP 13 6 Exit Sensor Assembly 4105 REP 10 13 Stack Full Sensor 4 73 REP 13 7 Weight rm 4106 REP 10 14 Offset Roll Assembly 474 REP 138 Tray Extension 4106 REP 10 15 Mid Roll Assembly 475 REP 18 9 No Paper Actuator 4107 REP 10 16 Offset Assembly 476 13 10 No Paper Sensor 4 107 REP 10 17 Offset Motor Assembly 4 76 REP 19 11 Gear Cover 4108 REP 10 18 Offset Assembly Home Sensor REP 19 12 Feed Clutch 4108 REP 13 13 Transport Roll Assembly 4 109 Optional Paper Feeder REP 13 14
145. XEROX Xerox DocuPrint N2125 Network Laser Printer Service Manual Q This Service Manual contains information that applies to the DocuPrint N2125 Laser Printer 721P52390 February 2000 Copyright This Service Manual contains information that applies to the DocuPrint N2125 Electronic Laser Printer NOTICE This manual is for use by Xerox Technicians and Xerox trained technicians only NOTICE While every care has been taken in the preparation of this manual no liability will be accepted by Xerox arising out of any inaccuracies or omissions All service documentation is supplied to Xerox external customers for informational purposes only Xerox service documentation is intended for use by certified product trained service personnel only Xerox does not warrant or represent that such documentation is complete Nor does Xerox represent or warrant that it will notify or provide to such customer any future changes to this documentation Customer s service of equipment or modules components parts of such equipment may void any otherwise applicable Xerox warranties If Customer services such equipment modules components or parts thereof Customer releases Xerox from any and all liability for Customer s actions and Customer agrees to indemnify defend and hold Xerox harmless from any third party claims which arise directly or indirectly from such service Prepared by Maak 1 105 Loudoun Street
146. abs and lit the Retard Assembly Figure 2 5 Remove the Retard Spring from the Roll Assembly Figure 2 Figure 2 Retard Spring Replacement 1 Reinstall the components in the reverse order 2 Ensure that the tab on the clutch is positioned on the pin on the Retard Shaft Figure 1 Retard Chute Initial Issue pum Repair Adjustment DocuPrint N2125 415 REP 2 3 REP 2 4 Motor Assembly Parts List on PL 2 2 Removal WARNING Switch off the power and disconnect the Power Cord 7 Remove Tray 1 2 Remove the two screws that secure the Rear L Holder to Tray 1 Figure 1 3 Remove the Motor Spring Figure 1 4 Remove the bearing Figure 1 NOTE It may be necessary to use a scribe or small screwdriver to the locking tabs to disconnect PAIS72 5 Press the Socket Guide slightly and disconnect P J672 Figure 2 Remove the three screws securing the Motor to the Motor Assembly Figure 2 7 Remove the Motor Figure 2 Figure 2 Motor Assembly Replacement 1 Reinstall the components in the reverse order Figure 1 Rear L Holder Repair Adjustment 0212000 il Issue REP 2 4 416 DocuPrint N2125 REP 2 5 Connector and Socket Guide Parts List on PL 2 2 Removal WARNING Switch off the power and disconnect the Power Cord 7 Remove Tray 1 2 Remove the two screws that secure the Loft Holder to the Tray 1 Figure 1 3 Remove the Motor Spring Figure 1 4 Remove the Bearing Figure 1 NOTE It may be necessary to use a scribe or
147. acement 1 Reinstall the components in the reverse order REP 9 4 5VDC PWB Parts List on PL 10 1 Removal CAUTION These components are susceptible to electrostatic discharge Observe all ESD procedures to avoid damage WARNING Switch off the power and disconnect the Power Cord Remove the Left Interface Cover Assembly REP 1 1 Remove the Left Cover REP 1 2 Remove the Left Plate Assembly REP 1 11 Disconnect PN288 from the PWB and PN1 fram the LVPS PWB Remove the two screws that secure the SVDC PWB to the printer Figure 1 Remove the SVDC PWB Figure 1 2125 4110 Figure 1 5VDC PWB Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 02 2000 Repair Adjustment 459 REP 9 3 REP 9 4 REP 9 5 LVPS PWB Parts List on PL 10 1 Removal CAUTION These components are susceptible to electrostatic discharge Observe all ESD procedures to avoid damage WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left Interface Cover Assembly REP 1 1 Remove the Left Cover REP 1 2 Remove the Front Cover Assembly REP 1 6 Remove the Lett Front Cover REP 1 7 Remove the Left Plato Assembly REP 1 11 Remove Plate Handle REP 1 12 Disconnect the Main Switch Figure 1 Disconnect PIJ11 PN 282 283 PLJ284 P J285 and PAJ281 Remove the four screws that secure the LVPS PWB to the printer Figure 1 Remove the PWB Figure
148. acket Assembly REP 11 4 6 Remove the Top Plate REP 11 5 6 Remove the Top Plate REP 11 5 7 Remove the 550 Sheet Feeder Drive Assembly REP 11 6 7 Remove the 550 Sheet Paper Feeder Drive Assembly REP 11 6 8 Rotate the No Paper Actuator up until the left end of the actuator can be removed fromthe 8 Remove the No Paper Actuator REP 11 7 support Figure 1 Remove the Actuator 9 Disconnect P J84 on the Paper Feeder PWB Figure 1 10 Remove the four screws that secure the Turn Roll Assembly the Feeder Assembly Fig ure 1 11 Remove the Turn Roll Assembly together with the Extension Springs and Chute Spring Figure 1 12 Unhook the lett and right Extension Springs from the two notches Figure 3 13 Remove the Chute Spring Figure 2 2125 4213 Figure 1 No Paper Actuator Figure 1 Turn Roll Assembly Replacement 1 Reinstall the components in the reverse order Repair Adjustment pee Initial Issue REP 11 7 REP 11 8 482 DocuPrint N2125 E tas en v Figure 2 Chute Spring Figure 3 Extension Springs Replacement 1 Reinstall the components in the reverse order REP 11 9 Feeder PWB Parts List on PL 11 2 Removal CAUTION These components are susceptible to electrostatic discharge Observe all ESD procedures to avoid damage WARNING Switch off the power and disconnect the Power Cord Remove the printer from the 550 Sheet Feeder REP 11 1 Remove the Tray from the Feeder Remove the 550 Sheet Feeder Righ
149. al Issue DocuPrint N2125 Figure 2 Feed Clutch Assembly Replacement 1 Reinstall the components in the reverse order REP 11 11 Paper Feed Rolls Parts List on PL 11 2 Removal WARNING Switch off the power and disconnect the Power Cord Remove the 2 Open the Front Chute Assembly from the Feeder of the 550 Sheet Feeder Figure 1 3 Release the locking tab on the front Feed Roll and slide the to the right and remove Figure 1 4 Repeat with rear Feed Roll Figure 1 War a 3 2125 4217 4 Figure 1 Paper Feed Rolls Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 0212000 Repair Adjustment 485 REP 11 10 REP 11 11 REP 11 12 Feeder Assembly Parts List on PL 11 2 Removal WARNING Switch off the power and disconnect the Power Cord Remove the printer from the 550 Sheet Feeder REP 11 1 Remove the Tray from the Feeder Remove the 550 Sheet Feeder Right Cover REP 11 2 Remove the 550 Sheet Feeder Loft Cover REP 11 3 Remove 550 Sheet Feeder Gear Bracket Assembly REP 11 4 Remove the Top Plate REP 11 5 Remove the 550 Sheet Feeder Drive Assembly REP 11 6 Remove the Feed Clutch Assembly REP 11 10 Remove the E ring that secures the left shaft of the Feeder Assembly Figure 1 Remove the lett bearing from the left shaft of the Feeder Assembly Figure 1 Open the Front Chute Assembly Figure 2 NOTE Caution Don t
150. al Procedures Information GP 2 5 GP 2 6 02 2000 Initial Issue 618 DocuPrint N2125 12 Press key 1 or 5 to get back to the Main Man selection ol Component Test or NUM Table 3 MBF Paper Size Table fo Test Pon a en taie z NV Tale w eos ara Sco Deku Vas Read TW pears Pri Rae Sarg bs aad On Ra OORT TET 1177 Gana So br ead Oy ELE Sang bs Taser Foner Saag E ead Oy Pe CM Four Tap Sy Sting 08 ae Read Ory Fear Tp No Aimer OE Taba Sj Read Wr sien Fear Tp Hr 0B aes fonde Fear Tp Aden 08 abe 5 Road Wie Table 4 EBF Paper Sizo Table Fear Tip EN Ausiment 00 abe 5j Road Wis Mio Sen Fear Tp Oop Risen 00 aba 5 Rea Wi More HEF Paper Sue Wei Reade br Postcard EBF Paper Sis Adusien TEBE Rea Wi bs Wear Tay Pros Raat ms Laas pre sisse 205 69827 Tray 2 Pros ir Agent Nn Semen Pros OF Rant oe aaa Wit bs YES EBF Prac Dir astro 05 bs CICALE CEEE TBE Proc Agent 8 aaa Wit or L T Sean BT Ls IES Sean Di Aer o Ronde Le esas Sean Di Aare o Ress i f e EDF San DT Agent
151. alysis Procedures 022000 Initial Issue Error Code Tables 240 DocuPrint N2125 RAP 1 AC Power Initial Actions Disconnect the AC power cord from the wall outlet WARNING Improper connection of the grounding conductor can result in the risk of electrical shack The following must be observed Never use a ground adapter plug to connect the machine to a power source Never attempt any maintenance function which is not specifically called out in the service procedures Never remove any covers which are fastened the service procedures screws unless so instructed in CAUTION If any of the voltage measurements are not as specified in the following steps the cause must be corrected Caution the customer NOT to connect the machine to the wall outlet Advise the customer that a licensed electrician must correct the wiring Do not attempt to correct the wir ing If you later find the condition has nat been corrected inform your manager in writ ing of the improper wiring Procedure Perform one of the following line voltage checks US XCI and AO 115 VAC Figure 1 Perform the following Measure the AC voltage between AC Line and Neutral between AC Line and Ground and between AC Neutral and Ground The voltage between Line and Neutral and between Lina and Ground is 90 to 140 VAC and the voltage between Neutral and Ground less than 3 VAC EarthvGND 0 AS EartvGND Line
152. aper Actuator manually and then release The Low Paper Actuator moves smoothly YN Faeroe to ow Paper Sener mont REP REP 11 14 Enter Diagnostics and select Component Test Scroll to Sensor Input test and press Enter Press the Low Paper Actuator manually and then release The LCD increments the counter each time you press and release the Actuator YN Check the wiring associated with the specific Low Paper Sensor If ok replace the Low Paper Sensor REP 3 5 REP 11 14 Replace the Print Engine Controller PWB REP 9 3 Initial Issue DocuPrint N2125 02 2000 225 RAP 20 RAP 21 Analysis Procedures RAP 22 Paper Size Error There is a conflict between the size of paper the printer senses and the size of paper that is actually loaded Procedure The problem appears when using Tray 1 2 or 3 YN Verity the size of paper currently in the MBF Tray Enter the User Menus select Tray Menu then select MBF Size The paper size displayed on the LCD matches the size actually in the MBF YN Set MBF size to the size of paper actualy installed then press Enter Replace the Print Engine Controller PWB REP Replace with paper that meets specifications Check the side guides and the Paper Stack End Guide in the problem tray All are properly set for the size of paper installed YN guides Properly set the guides Check the size cam on the let side of the paper ray Table 1 The cams are in good con io
153. appear to be narrower than tho others Arrow 2 The text paragraphs should be roughly equal in density Arrow 3 The hali tone patches adjacent to the solid blocks in the comers should be uniform in appear ance The three checks arrows 1 2 amp 3 are within specification YN Go to IQ RAP 18 Resolution The printed test patterns moet the Resolution specification Go to the Registration Side to Side RTS Figure 1 Resolution Registration Side to Side Procedure Measure the registration on two consecutive System Controller Test Patterns Fold the paper in half side edge to side edge Observe the fold line of the paper with reference to the cross hairs of the target Figure 1 The fold is within 2 0 mm of the target cross hairs each lino on the target is 1 mm YN Go to IQ RAP 15 Registration The test prints meet the side to side registration specification Go to Registration Lead Edge to Tail Edge PROCESS SCAN Fold Line N2125 3307 ire 1 Registration Side to Side Image Qu Resolution Registration ity Repair Analysis Procedures 0212000 Initial Issue DocuPrint N2125 Registration Lead Edge to Trail Edge Procedure Measure the registration on two consecutive System Controller Test Patterns Fold the paper in half lead edge to Trail Edge Observe the fold ine of the paper with reference to the cross hairs of the target The fold is within 2 0 mm of the ta
154. ars that the Tray 1 No Paper Sensor is working correctly If a problem persists replace the Print Engine Controller PWB REP 9 3 Status Indicator Repair Analysis Procedures RAP 33 RAP 34 02 2000 234 Initial Issue DocuPrint N2125 RAP 35 Standard Bin Stack Full Sensor Procedure Enter Diagnostics and select Component Test Scroll to Sensor input test and press Enter Actuate and deactuate the Stack Full Sensor Actuator The number on the LCD increments each time you press and release the actuator YN Visually inspect the Stack Full Sensor Actuator The actuator moves freely and good condition not broken or damaged YN Replace the Stack Full Actuator REP 6 8 Switch the printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 4 2 and Left Plate REP 1 11 Disconnect P J31 from the Print Engine Controller PWB Switch the printer power on On the Print Engine Controller PWB measure the voltage between P31 pin 1 and frame ground The voltage is 3 3VDC YN On the Print Engine Controller PWB measure the voltage between P J28 pin 10 and frame ground The voltage is 3 3VDC YN Replace the LVPS REP 9 5 Replace the Print Engine Controller PWB REP 9 3 Switch the printer power off Reconnect PS1 to the Print Engine Controller PWB Switch the printer power on On the Print Engine Controller PWB measure the voltage between P J31 pin 3 and frame ground There is 3 3VDC between P J31 pin 3 an
155. ation pam Initial Issue GP 3 10 GP 3 11 6 40 DocuPrint N2125 Tansers the envelope by its counterclockwise rotation and transfers the drive power to the GP 3 12 Offset Catch Tray OCT The Paper Path for the Offset Catch Tray Transfer Roll Assembly Paper that is fed to the optional Offset Catch Tray follows the path shown in Figure 1 Feed Belts at the same time Transfers the envelope to the registration paper path No Paper Sensor Detects out of envelope condition Envelope Exit Sensor Assembly Detects exit of the envelope Envelope PWB Controls the Envelope Feeder and is the signal interface to the Print Engine Controller PWB Clutch Assy 25 One Way Clutch Assy 26 Elec Clutch 29 Exit Sensor Assy Envelope PWB Feed Belt One Way Clutch Roll Assy Assy 26A One Way Clutch No Paper Actuator Y Y x Registration Ralls Drum TR Fuser Assembly Ext Assombly Duplex Assy fae I ba Gale Output Tay E set Catch OCT Tay fey 266 a Figure 1 The OCT Paper Path Front Feed 2 Roll Assy No Raper sensor Feed Fol Assy Figure 4 Major Components of the Envelope Feeder initia issue pum Genera Procedures information DocuPrint N2125 eat GP 3 11 GP 3 12 Figure 2 shows a cut off view of the printer to better illustrate the components involved in the paper path Drive Flow As shown in Fig
156. ay through the print cycle Carefully remove the Print Cartridge and inspect the toner image on the drum just before the transfer area BTR The undeveloped areas of the drum are clean and without background YN Go to RAP 43 Clean or replace the Fuser Assembly REP 6 2 The background is gone YN Replace the following in order until the defective component is found HVPS PWB REP 9 6 Fuser Assembly REP 6 2 Chute Transport Assembly REP 6 1 Laser Assembly REP 7 4 Print Cartridge Side Guide REP 7 5 Print Engine Controller PWB REP 9 3 Problem solved Problem solved IQ RAP 12 Uneven Density Image density varies within the page in either direction Figure 1 5 Leet Pir 5 oom Porter 1825 Loos Porter 10325 ees Panier 10425 Loot Per Figure 1 Uneven Density Actions Load fresh dry paper Check that the correct Print Cartridge is properly installed and not empty Ensure that the machine is reasonably level Check to make sure the Laser path is clean and unobstructed Remove the Print Cartridge and check the Left and Right Guides for ware contamination obstructions etc Clean the Laser window Procedure Run Test Print The Test Print output image contains uneven print YN Go to Final Actions Install a new Print Cartridge PL 8 1 Run a Test Print The Test Print output image con tains uneven print YN Problem solved Go to Initia
157. between P J23 Pin 4 and frame ground The voltage is 0 0VDC YN Switch the Printer power off Remove the Envelope Feeder Check for continuity between J418 Pin 3 Envelope Connector Assembly and P J23 Pin 4 on the Print Engine Controller PWB There is continuity between the two pins YN Remove the Front Cover REP 1 6 and the Left Front Cover REP 1 7 Check for continuity between Pid 41 Pin on the Connector PWB and P J 23 Pin 4 There is continuity between the two pins YN Check the Connector Harness Assembly for proper connection and for defective wires Repair or replace if necessary If Hamess is in good con dition replace the Connector PWB REP 9 7 Replace the Envelope Connector Assembly REP 4 10 Replace the Envelope Feeder PWB REP 13 3 Replace the Envelope Feeder PWB REP 13 3 Problem solved RAP 63 Envelope Feed Clutch Procedure Enter Diagnostics and select Component Test Scroll to confirm EBF Clutch and press Enter You can hear the clutch energize YN Switch Power Off Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Enter Diagnostics and select Component Test Scroll to confirm EBF Clutch On the Print Engine Controller PWB check voltage between P J23 Pin 1 and frame ground Press Enter The voltage pulses from 0 0VDC to 3 3VDC then returns to 0 0VDC Check the voltage between P J23 Pin 4 and frame ground The voltage is 0 0VDC Y
158. bly REP 1 4 connectors fram the bottom of the Laser Assembly Figure 1 7 Remove the Laser Assembly from the printer Figure 1 Figure 1 Laser Assembly Replacement 1 Reinstall the components in the reverse order Remove the four screws securing the Laser Assembly to the printer Figure 1 Raising the Laser Assembly slightly disconnect P J213 and P J223 from the rear and two REP 7 5 Print Cartridge Side Guide Parts List on PL 8 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left Interface Cover REP 1 1 3 Remove Front Cover Assembly REP 1 5 4 Remove the Left Front Cover REP 1 7 5 Remove MBF Chute Assembly REP 4 1 6 Remove the Paper Handler Assembly REP 5 1 7 Remove Top Cover Assembly REP 1 4 8 Remove Right Cover REP 1 5 9 Remove the two K clips that secure the Print Cartridge Locking Arm 10 Remove the five screws on the right side of the frame Figure 1 11 Remove the Print Cartridge Side Guide Figure 1 12 Remove the Spring Clip Figure 1 2125 4091 i 2025 4298 10 Figure 1 Print Cartridge Side Guide Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 0212000 Repair Adjustment 453 REP 7 4 REP 7 5 Repair Adjustment 022000 Initial issue REP 7 4 REP 7 5 pen DocuPrint N2125 REP 8 1 Main Motor Assembly Parts List on PL 8 1 Removal WARNING Switch off the
159. c Printer Operation RAP 28 Power Supply RAP 29 Main Motor Assembly RAP 30 Laser Assembly RAP 31 Fuser Assembly RAP 32 Registration Sensor RAP 33 MBF No Paper Sensor RAP 34 Tray 1 No Paper Sensor RAP 35 Standard Bin Stack Full Sensor RAP 36 Print Cartridge Sensor Assembly RAP 37 Tray Motor Assembly Checkout Procedure RAP 36 Registration Clutch RAP 39 Turn Roll Clutch Assembly RAP 40 Tray 1 Feed Clutch RAP 41 MBF Feed Solenoid 2 Status Indicator Repair Analysis Procedures 23 23 25 241 242 248 244 245 246 246 247 248 248 249 220 2 21 221 222 222 228 224 224 225 225 228 2 26 227 228 229 229 230 231 232 232 233 234 234 235 235 236 236 237 237 238 RAP 42 System Controller Isolation RAP 43 HVPS Assembly RAP 44 Electrical Noise RAP 45 DIMM 0101 RAP 46 DIMM 2 0102 RAP 47 DIMM 3 0103 RAP 48 Exit Sensor RAP 49 Exit Motor RAP 50 Load MBF C5 RAP 51 Face Up Tray Open ES 500 Sheet Feeder RAP 52 Low Paper Tray 2 or Tray 3 550 Sheet Feeder RAP 53 550 Sheet Feeder Feed Clutch RAP 54 550 Sheet Feeder Assembly Not Recognized Duplex Ui RAP 55 Duplex Unit Fail or Removed E9 1 56 Paper Jam Open Front Cover E7 Offsetting Catch Tray RAP 57 Offset Jam Open Rear Cover E6 X RAP 58 OCT Assy Not Recognized RAP 59 Remove Output From Offset Bin C5 RAP 60 OCT Stack Full Sensor RAP 61 OCT Offset Operation Not Performed Envelope Feeder RA
160. cates factory default values iem Keys Job Menu Cancel Job Password Menu Menu Form Feed PCL Menu blank entry Restart Printer System Menu Parallel Menu Serial Menu USB Menu Ethernet Menu Token Ring Menu Novell Menu Print Menu Reset Menu j certain options are installed See Menu Maps for details of each menu 1 The Reset Menu is only visible in the menu list if the printer is powered on ese while pressing the Online and Enter ieys General Procedures Information 02 2000 Initial Issue GP 4 1 648 DocuPrint 2125 Tray Menu Select the Tray Menu using the Menu Up and Menu down keys Select a variable with Item Up Item Down keys Use the Value Up or Value Down keys to scroll to the requested value Use Enter key to load value in NVRAM Factory Default item Keys Value Keys mem Legal 5x14 WEF See Folola 5x13 Job Menu MBF Type Ledger 11x17 Password Menu Tray 1 Typo AG 108x148 Tray Menu 2 Type note 3 5 148 210 PCL Menu Tray 3 Type note 3 AA 2 10x297 System Menu Tray Sequence B5 IS 182x257 Parallel Menu notes 3 4 B5 ISO 176x250 Serial Menu Custom Size Index USB Menu Tray 1 Mode Com10 4 125x9 5 Notes EmemetMen ey 2 Mode 511621229 1 Tho factory defaut for MBF and Token Ring Menu Tray 3 Mode OL 110x220 Custom size is a function of the Novell Menu Contig Fuserincte 3 Monch 3 87x7 5 Defaults setin
161. cedures RAP 55 RAP 56 Status Indicator Repair Analysis Procedures 02 2000 Initial Issue RAP 55 RAP 56 248 DocuPrint N2125 RAP 57 Offset Jam Open Rear Cover E6 X Paper late to OCT sensor paper late off OCT sensor or paper on OCT sensor at power on Procedure Open the printer Rear Cover and the OCT Rear Cover Check for paper ar other obstructions in the paper path The printer if free of jammed paper paper scraps or other obstructions YON Clear all jammed paper paper scraps and obstructions from the printer and the OCT Run 15 to 20 test prints output to OCT The error code reappears Problem Solved Enter Diagnostics and select Component Test Scroll to Sensor Input test and press Enter Open the OCT Rear Cover Actuate and deactuate the OCT Exit Sensor Actuator The ber on the LCD increments each time you press and release the actuator YN Switch the printer power off Remove the Lett interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 On the Print Engine Controller PWB check the voltage between P J35 pin 7 and frame ground as you actuate and deactuate the OCT Exit Sensor Actuator The voltage is 3 3VDC when deactuated and 0 0VDC when actuat YN Replace the OCT Exit Sensor REP 10 11 If the problem persists replace the OCT PWB REP 10 7 Replace the Print Engine Controller PWB REP Exit Sensor Input test and scroll to OCT Motor Operation Pre
162. ch the printer power off Remove the Front Cover REP 1 6 and the Left Front Cover REP 1 7 Cheat the Front Cover Interlock Switch Switch the printer power on On the connector PWB check the voltage between P J42 pin 4 and frame ground The voltage is 0 0VDC with the print cartridge installed and 3 3VDC with the print cartridge removed YON Check the voltage between P J42 pin 3 and 1 The voltage is 24VDC YN On the Connector PWB check the voltage between P J231 pin 11 and pin 12 The voltage is 24VDC YN Check the Connector Harness Assembly if OK replace the Print Engine Controller PWB REP 9 3 Replace the Connector PWB REP 9 7 Replace the Toner Sensor REP 5 2 the connector PWB check the voltage between P J231 pin 9 and frame ground The voltage is 0 0VDC with the print cartridge installed and 3 3VDC with the print car tridge removed YN Replace the Connector PWB REP 9 7 Check the Connector Harness Assembly I OK replace the Print Engine Controller PWB REP 9 3 Replace the Print Engine Controller PWB REP 9 3 Status Indicator Repair Analysis Procedures RAP 22 RAP 23 02 2000 Initial Issue 2 26 DocuPrint N2125 RAP 24 Inoperative Printer The main power cannat be switched Procedure Ensure the power cord is properly connected to the wall outlet and to the Power Receptacle of the printer The problem still exists YON Problem solved Perform RAP 1 then
163. closed positions Open the printer rear cover Switch the printer power on Cheat the Rear Caver Interiack and watch the Exit Gate at the end of reset Remove then replace the Rear Cover Interlock cheater The Exit Gate toggles at the com pletion of each reset Replace the Direction Solenoid REP 10 10 if the problem persists Replace the PWB REP 10 7 Replace the OCT PWB REP 10 7 I the problem persists Replace the Print Engine Control ler PWB REP 93 Initial Issue DocuPrint N2125 02 2000 Status Indicator Repair Analysis Procedures RAP 57 249 RAP 58 OCT Assy Not Recognized Procedure Switch the printer power off Remove and reinstall the Switch the printer power on Run a Contig Sheet The OCT is listed on the Contig Sheet Y N Switch the printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Remove the OCT from the printer Switch the printer power on On the Print Engine Controller PWB check the voltage between P J35 pin 1 and frame ground The voltage is 3 3VDC YON Replace the Print Engine Controller PWB REP 9 3 Switch the printer power off Properly install the OCT on the printer Switch the printer power on On the Print Engine Controller PWB check the voltage between P J35 pin 1 and frame ground The voltage is 0 0VDC YN Replace the OCT PWB REP 10 7 Replace the Print Engine Controller PWB REP
164. crews that secure the Size PWB to the Size Sensor Housing Assembly Figure 1 Remove the Tray 2 Size PWB Figure 1 S RIRS AN 8 Figure 1 Tray 2 Size PWB 2125 4203 Replacement 1 Reinstall the components in the reverse order REP 11 20 Size Harness Assembly Parts List on PL 9 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove the printer from the 550 Sheet Feeder REP 11 1 Remove the Tray from the Feeder Remove the 550 Sheet Feeder Left Cover REP 11 3 Remove the 550 Sheet Feeder Size Harness Assembly REP 11 16 Remove the Size Sensor Harness Assembly REP 11 17 Remove the Size Sensor Housing REP 11 18 Disconnect P J53 from the Tray 2 Size PWB Figure 1 Remove the two screws that secure the Size Harness Assembly Figure 1 Remove the Size Harness Assembly Figure 1 2025 4204 TE Figure 1 Size M Harness Assembly Replacement Reinstall the components in the reverse order Initial Issue DocuPrint N2125 02 2000 Repair Adjustment REP 11 19 REP 11 20 Repair Adjustment 02 2000 Initial issue REP 11 19 REP 11 20 492 DocuPrint N2125 REP 12 1 Duplex Assembly Parts List on PL 13 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Open the Printer Rear Cover 2 Push the left and right latches in and pull the Duplex Assembly aut and up to remove Fig ure 1 2028 424 2 Figure 1 Duplex Assembly Replacement
165. ctrostatic Discharge The following symbols indicates that there are components which are sensitive to damage caused by electrostatic discharge 4 Shock Hazard This symbol indicates the presence of potentially hazardous voltages FM ont Fuser Hazard This symbol indicates the presence of extreme heat from the Fuser Assembly 02 2000 Terminology and Symbols Titia Issue DocuPrint N2125 Laser Product Certification CAUTION Use of controls or adjustments other than those specified in this manual may result in an exposure to dangerous laser radiation The DocuPrint N2125 is certified to comply with Laser Product Performance Standards set by the United States Department of Health and Human Services as a Class 1 product This means that it is a laser product that does not emit dangerous laser radiation during any mode of customer operation During servicing the laser beam could cause eye damage if looked at directly Service procedures must be followed exactly as written without change CAUTION These components are susceptible to electrostatic discharge Observe all ESD procedures to avoid damage Initial Issue 02 2000 DocuPrint N2125 Laser Product Certification Product DocuPrint 2125 Laser Printer Tie Xerox DocuPrint N2125 Network Laser Printer Service Manual Part Number 721P52390 Pag
166. d Tray 3 wiring is identical Connector numbers are indexed for clarity in troubleshooting see Master Wiring Diagram Tray 2 and Tray 3 Feeder PWB EON Figure 2 550 Sheet Feeder Block Diagram Wiring Data 550 Sheet Paper Feeder 02 2000 722 Initial Issue DocuPrint N2125 Size 1 PWB lt gt Tray 2 PWB lt gt Tray 3 PWB Table 2 Table 3 Signal Names Table 2 shows the signal names for the Print Engine Controller PWB lt gt Size 1 PWB lt gt Name Description Option path FEED 17213 ON Control signal which actuates the Feed Clutch Assembly Table 2 Signal Names Signal Levels High 24 Low 0V Signal Name Description MANC OUT Control signal which actuates the Turn Cluich Assembly The Turn Clutch omo Control data which is Wom the Print Engine Controller PWE Assembly is interlocked with the Feed Clutch Assembly Signal Levels High 3 3V Low 0V Signal Levels High 24V Low 0V horo Received data rom the Feeder NUD MOTOR control signal which on the Motor Assembly Signal Levels High 33V Low 0V Signal Levels High 33V Low 0V WEEDS Feed control signal Tor the Feeder 3 The Feed andthe AV Interlock Interlock signal which related with he all clutches and maiors equipped Clutch Assembly are activated when this signal goes Low lon the Feeder PWB Signal Levels Hi
167. d frame ground when the Stack Full Sensor is deactuated and 0 0VDC when actuated YN Replace the Stack Full Sensor REP 6 6 Replace the Print Engine Controller PWB REP Replace the Print Engine Controller PWB REP RAP 36 Print Cartridge Sensor Assembly Procedure Open the Front Cover and remove the Print Cartridge Inspect the tab on the top of the Print Cartridge that actuates the Print Cartridge Sensor Assembly The tab on the Print Cartridge tact YN Replace the Print Cartridge PL 8 1 Press and release the Print Cartridge Sensor Assembly Actuator The Print Cartridge Sen sor Assembly Actuator lever moves smoothly YN Replace the Print Cartridge Sensor Assembly REP 7 3 Enter diagnostics and select Component Test Scroll to Sensor Input test and press Enter Manually actuate the Print Cartridge Sensor Assembly Actuator The number on the LCD increments each time you press and release the actuator YN Switch the printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and Left Plate Assembly REP 1 11 Switch the printer power on On the print Engine Controller PWB check the voltage between P J25 pin 4 and frame ground The voltage is 5 0VDC YN Replace the Print Engine Controller PWB REP 9 3 Check the voltage between P J25 pin 3 and frame ground Manually actuate and deactu ate the Print Cartridge Sensor Assembly The voltage is 0 0 with the Print Car
168. de of the Paper Tray measure the resistance between the upper and lower contacts on the Paper Feeder Connector Their is continuity between the two con tacts YN Replace the Paper Feeder Connector REP 2 5 Switch the printer power off Remove the Paper Feeder Assembly REP 3 1 Disconnect id64 from the Feeder PWB Measure the resistance between pins 1 and 2 on the discon nected plug Their is continuity between the two pins YN Replace the Turn Clutch Assembly PL 3 1 Replace the Feeder PWB REP 3 9 If the problem persists replace the Size PWB REP 3 13 Switch the printer power off Remove the Front Cover REP 1 6 Cheat the Front Cover Inter lock Switch Enter diagnostics and select Component Test Scroll to Main Motor and press Enter Scroll to Turn Roll Clutch and press Enter The Turn Rolls rotate smoothly without stalling or jerking N Replace the Turn Roll Assembly REP 3 2 Replace the Turn Roll Clutch REP 3 2 If the problem persists replace the Print Engine Con troller PWB REP 9 3 RAP 40 Tray 1 Feed Clutch Procedure NOTE 1 interlocks the 24VDC supply to the Tay 1 Size PWB 1 Feeder PWB Tray 2 and 3 Tay 2 interlocks the 24VDC supply to the Tray 2 Size PWB Tray 2 Feeder PWB and 3 8 interlocks the 24VDC supply to the Tray 3 Size PWB and the Tray 3 Feeder Pwe Enter Diagnostics and select Component Test Scroll to Confirm Tray 1 Feed Clutch and press En
169. dge x Long Tray plex Edge JOPT MBF Option option Table 7 Paper Size and Feeder Tray Output Tray Comp ardstock 762 270 210 287 X x Sue Paper Others 8 x 5 8 25 x Short Edge x Long Tiay STD Duplex Up 11 77 4 or 215 9 x Type Name Edge MBe Option Option Option 279 4 85 x 11 Let Regular Legal 14 2153x3556 83x X x x x ten Cut Sheet 14 Universal EZET x x Dens prsxsmzesx K KK piso qnas 13 CE CCE LAC KX KJ Gen AE X X 117 eme E x 1820 21 SX BETO X xk x 8 257 Ent ater 2159 279085 x Xe B Hranspar Leter 2159x2784 Ex X x x lency Eee AERIS IE xk x she manem x 117 85075 182 0 2570 7 10 X X x eter GELE XE X x xe ESSO 176 0 x 2500 EE x x xx lisi 1 bs Media A 210 287 825 X x X L3 11902100058 X x xx Sheet au 8257 Ham RASE 4 Media Input Output Chart Table 8 Letter NS Not Supported CUS Supported when printer is in custom mode Envelope 05 LEE LICE x x dir ipo COM 10 1048x2413 4 x 9 57 X x na is omar DE 1100 220 0 4 3 x x x pee TFT TETER aes ur pe Paper feeder Face Monarch Style Paper Size MBF Tray Legal option Main Up OCT Teter 2159x2794 mm Duplex Duper NS Nes es Postcard Japanese 100 x 1480 83 x55 x x 1 4 ee eR Oficial Tegal 2159 3558 85 __
170. dicator Repair Analysis Procedures 02 2000 Initial Issue RAP 66 2 56 DocuPrint N2125 3 Image Quality Repair Analysis Procedures Introduction 33 Measurements Image Quality Defect Definitions 34 Image Quality Checkout 35 Solid Area Density 36 Background 36 Deletions Line Band Spots 37 Fusing 37 Resolution 38 Registration Side to Side 38 Registration Lead Edge to Trail Edge Skew 39 Skips Smears 340 Spots 340 Other Print Defects ET IQ RAP 1 Light Undertoned Prints 311 RAP 2 Blank Prints 342 IQ RAP 3 Spots 313 RAP 4 Horizontal Deletions 314 IQ RAP 5 Vertical Deletions 348 IQ RAP 6 Spot Deletions 546 IQ RAP 7 Vertical Streaks 547 IQ RAP 8 Horizontal Streaks 348 IQ RAP 9 Residual Image RAP 10 Black Prints 320 IQ RAP 11 Background 321 IQ RAP 12 Uneven Density 321 IQ RAP 13 Skewed Image 322 IQ RAP 14 Damaged Print 323 IQ RAP 15 Registration 324 IQ RAP 16 Skips Smears 3 25 IQ RAP 17 Unfused Image 325 IQ RAP 18 Resolution 3 26 Issue 02 2000 Image Quality Repair Analysis Procedures DocuPrint N2125 34 Image Quality Repair Analysis Procedures 02 2000 Initial Issue 32 DocuPrint N2125 Introduction This section contains image quality repair procedures to assist in correcting image quality defects These procedures provide defect samples definitions and specifications to help iden iy the type of detect that exists the test pattern lo use and actions required to correct
171. does not complete within 110 seconds 3 Thermistor circuit is detected to be open 4 Fuser temperature rises above the set temperature 5 Heat rod is on for 10 seconds when the Main Drive Motor is stopped after ihe Fuser warm up is completed Fan Faure 05 U5 Fan Wain Fan has Taled Feck the Main Fan Power Ott Now Printer Pause Power Ott and On Go to RAP 20 Status Indicator Repair Analysis Procedures Error Code Tables 02 2000 28 Initial Issue DocuPrint N2125 Table 1 Error Code Table Genoralinfo Control Panel Message Fault History Entry Diagnostic Message Error Description Action TOT NVM Fait Us US NVM Fa T A read eroris detected during PowerOW and Om Power Ofl On power Replace Print Engine Contro 2 A write error is detected during ler PWB REP 9 3 write to the Nonvolatie Memory Table 2 System Controller Error Code Table LED blinks Control Panel Message Followed by 1 sec oft Comment 0061 System Controler T System Controller Board major failure RAP 42 0001 BASE System Controller Board RAM failure Go 10 42 001 3 System Coniraler Board boot ROM Go to RAP 42 0007 ASIG g System Controller Board ASIC failure Go to RAP 42 ooo TIMER g System Controller Board Timer failure Go RAP 42 0007 5 System Con
172. dures Information GP 3 10 02 2000 6 38 DocuPrint N2125 The Duplex Assembly uses a Single sheet Batch and Multi sheet Batch mode when duplex ing a print job Single sheet batch is used by the printer when a complex duplex job is received For example if the printer received a job that contains complicated graphics the printer will switch to single batch mode so it can process the job Multi Sheet Batch Printing The printer prints on one side of the first sheet of paper The first sheet is returned to the Duplex Assembly and held The printer prints on one side of a second sheet of paper The Duplex Assembly returns the first sheet to the printer as the Exit Assembly returns the second sheet to the Duplex Assembly The printer prints on the second side of the first sheet The printer transports the first sheet to the Output Tray A third sheet is fed and printed on one side The Duplex Assembly returns the second sheet to the printer as the third sheet is returned to the Duplex Assembly 9 The printer prints on the second side of the second sheet 10 The printer transports the duplexed printed second sheet to the output tray 11 This process repeats for additional prints GP 3 11 Envelope Feeder The Paper Path for the Envelope Feeder Paper that is fed from the optional Envelope Feeder follows the path Figure 1 Cassette Feed i Turn Roll Assy MBF Feed Y Y Re
173. dures to avoid damage WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Print Cartridge and store in safe place Remove the Front Cover Assembly REP 1 6 Remove the Left Front Cover REP 1 7 Disconnect PIJ41 PLIA2 P J43 P J44 P J45 and P J231 from the Connector PWB Fig ure 1 Remove the three screws that secure the Connector PWB to the printer Figure 1 Remove the Connector PWB Figure 1 jx i 5 205 4107 E Figure 1 Connector PWB Replacement 1 Reinstall the components in the reverse order Initial Issue pum Repair Adjustment DocuPrint 2125 461 REP 9 6 REP 9 7 REP 9 8 Main Switch Parts List on PL 10 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left Interface Cover Assembly REP 1 1 Remove the Left Cover REP 1 2 Remove the Front Cover Assembly REP 1 6 Remove the Left Front Cover REP 1 7 Remove the Left Plate Assembly REP 1 11 Remove the Plate Handle REP 1 12 Press the locking tabs and push the rear of the Main Switch so that it comes out of the ront of the printer Figure 1 9 Disconnect the Harness from the Main Switch and remove the Main Switch from the printer Figure 1 Replacement Reinstall the components in the reverse order 208 an2 yms T Figure 1 Main Switch Repair Adjustment prem Initial Issue REP 9 8 462 DocuPrint N2125 REP 9 9 Front Interl
174. e Offset Roll Assembly is in the home position Drive Motor Assy Offset Motor Assy 6057 Figure 4 Major Components of the OCT 1 of 2 When the printer is running in Duplex mode paper partially feeds out into the Face Down Tray under the OCT Assembly it then reverses direction and is printed on the second side then sent to the Exit Tray of the OCT Full Stack Detection The Print Engine Controller PWB examines the state of the Full Stack Sensor after the Sensor Assembly Exit signal goes Low The Print Engine Controller PWB detects that the Tray Exit is full when the Full Stack Sensor remains High for a set number of successive Sensor Assembly Exit actuations sheets of paper exiting in the OCT The Full Stack condition stays in affect unti the Full Stack Sensor goes Low Paper Jam Detection The base printer and the OCT are designed to move a sheet of paper between the detecting points Le sensors on the paper path within specific periods of time If a sheet of paper is either early or late arriving at any point the Print Engine Controller PWB interprets this devia tion as a paper jam Initial Issue DocuPrint N2125 General Procedures Information GP 3 12 02 2000 E6 1 6 1 is the specified time that the paper has to turn the OCT Sensor Assembly Low after it has turned the Sensor Exit High If the Sensor Assembly Exit does not go Low affer the specified time the Print Engine Controller PWB
175. e 2 LED 3 will Numbers start blinking Follow the instruction display on LCD panel to troubleshoot the problem Up Down 2or6 come icon et Mere In Au Press key 0 after fixing problem LED 3 will stop blinking once the error is cleared EE Up Wass DSS rer ens Tay Output Tey and Dupe 2 pining wl resume fs ator poem has been fred or prior wil go back to sop 1 Mera sector Table 2107 Fault Table Enter Executes the Test Print up to 995 prints Condition Message DL Error Code Actor Enters selections of Input Tray Output Paper Size Errorall inputs C5 Put correct size paper ia and Duplex selections Trays OnLine 7 Stop printing and clears error coda Earir eed jam zo Open covers clear paper palh Press and hold the 0 key for 1 second Misfeed jam E2 1 Open covers clear paper path Used to stop printing in the Test Print Reg jam E32 Open covers clear paper path mode Duplex jam ETC ET i ETZ ETS ve Open covers clear paper path tfan error code appears pressing 0 feed clears the error code Pressing 0 OCTjam E61 E62 Open covers lear paper path ond time returns to Print Pattern E40 E42 ETT Open covers clear paper path EP Cart out us Check Toner Cartridge ii may Procedure eed to be installed properly 1 Power down printer Low Toner 5 Replace EP Cartridge 2 Simultaneously hold keys
176. e 4 shows the signal names for the Print Engine Controller PWB lt gt HVPS PWB path TEE FETE ETAT Table 4 Signal Names TRE Transfer Voltage To be applied onto BTA Analog SEN SS DE DC Canirar signal ts select he Development Voltage Tor DC component Analog CR DC Conirol signal fo switch tha Charge Voltage for DG component oi the CR and 075 Control signal to select the DTS Voltage Analog the on and TRAD TRA Conal signal to select the TR voliage 0 To 3 3VDC as determined by ihe Low OV OFF High 3 3V ON applied charge voltage ATOVC Analog TRAE Constantirequency pulse signal that provides the source ofoscilation orgen PRE Pressure Foll Bias be applied on the Pressure Fol erating the component of the CR CRTR Print Engine Controller PWB lt gt HVPS PWB lt gt BTR Print Cartridge and Fuser Assembly DE DA Constant requency pulse signal that provides the source of oscllation Tor ger erating the AC component of the DB Development Bias in the HVPS Initial Issue 272000 Wiring Data DocuPrint N2125 741 Base Engine Table 5 shows the signal names for the HVPS PWB lt gt BTR Print Cartridge and Fuser Assembly path Table 5 Signal Names Signal Name Descrpion CR RVPS output to the Magnet Rol DE output to the BCR TR VPS output to the BTR DC in Transfer operation and DO when cleaning the BTA DT RVPS output tothe
177. e Density Does not exceed 0 02 ppm of ozone density TWA mse es os 89 nr lez es i68 Time Weight Average measured according to ECMA 186 198 210 186 129 standard Other standards TOOVIT20V type satisfies NOTE The data is the theoretical values when the paper is fed from tray 1 2 When Laser Motor OFF the values are adjusted as follows FPOT t 4 0 seconds 600 dpi FPOT t 4 0 seconds 1200 dpi 3 When the paper is fed from other tray the values are adjusted as follows t 1 2 seconds from MBF FPOT t 1 2 seconds from tray 2 FPOT t 2 4 seconds from tray 3 4 from the Sleep Mode add up to 65 seconds to each value General Procedures Information GP 1 2 GP 1 3 02 2000 66 Initial Issue DocuPrint N2125 GP 1 4 Continuous Printing Speed After The First Sheet Out Table 1 Continuous Printing Speed After the First Sheet Out Mode Duplex Mode Paper Type prints per minute impressions per minute Totter SEF El 75 Legal 13 SEF 17 125 Legal 14 SEF T ig Executive SEF El 14 Aa SEF 27 85 IS SEF zT 15 Envelopes NA GP 1 5 Paper Specifications The printer uses the following paper feed methods 550 Universal Paper Tray Standard feeder for the N2125 printer Holds up to 550 sheets of the following papers Table 1 Table 1 550 Universal Paper Tray Size mm x
178. e Feeder PWB to the Paper Feeder Figure 1 16 Remove the PWB Figure 1 Repair Adjustment 02 2000 REP 3 8 REP 3 9 424 Initial Issue DocuPrint N2125 REP 3 10 Feeder Socket Parts List on PL 3 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Lett Interface Cover Assembly REP 1 1 Remove the Left Cover REP 1 2 Remove the Front Cover Assembly REP 1 5 Remove the Left Front Cover REP 1 7 Remove the Left Plate Assembly REP 1 11 Remove the Plate Handle REP 1 12 Open Rear Door 9 Remove the Top Cover Assembly REP 1 4 10 Remove the Right Cover REP 1 5 11 Remove the LVPS PWB REP 9 5 32 Remove the Paper Feeder REP 3 1 13 Remove the two screws that secure the Feeder Socket in the printer Figure 1 NOTE lt may be necessary to use a scribe or small screwdriver to lift the locking tabs to disconnect PAJ671 16 4 Lif locking tabs and disconnect PLU from the Socket Figure 1 Figure 1 Feeder PB Replacement 1 Reinstall the components in the reverse order Figure 1 Feeder Socket Initial Issue 0212000 Repair Adjustment DocuPrint N2125 425 REP 3 9 REP 3 10 Replacement 1 Reinstall the components in the reverse order REP 3 11 Size Sensor Housing Parts List on PL 9 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Lett interlace Cover REP 1 1 Remove Lett Cover REP 1 2 Remove the Front Cover
179. e Fuser assem bly in Sleep Mode Fuser control temperature TOO TZOVAC printer TB D C F 220 240 printer T B D C F Size and weight not including the Print Cartridge System Controller PWB or any options Widin 422mm X Depth 439mm X Height 413mm 16 5 inches x17 28 inches x 16 25 inches Weight 26Kg 571bs Space requirements Overhead Minimum TBD mm Front Minimum 240mm 9 5 inches Back Minimum 300mm 11 8 inches Sides Minimum Maximum paper size Legal 14 85X14 3556mm X 2153mm Maximum printable area Edge io edge printing capability Within the 4mm Border E sides the printer wil print any data 6 point or larger Maximum paper Toad 550 shoots of AX 80 Ad paper or Xerox 20b Letter size paper Operating environment 5 35 741 95 15 85 AH operating Jo 3100 meter 10171 1 ft above sea level Horizontal bias within 5 of level orage environment with packed Print Cartridge INormal conditon T2 months maximum at 0 35 CEST 15 80 RH with no condensation present Severe condition 1 month maximum at 20 to 0 C 4 to 132 or 35 to 40 95 to104 F JQ 5 15 or 80 95 RH with no condensation present Print Cartridge ife See GP 1 7 10 000 15 000 prints on paper wilh 5 print coverage 10 000 or 15 000 prints dependent on Print Cartridge used Toner Sensor Afte
180. e Print Engine Controller PWB performs eight main functions 1 Communicates with the System Controller Exit Motor Assembly 2 Controls the print sequence 3 Controls the Fuser Assembly Laser Assembly and Drive components 4 Distributes low DC voltages to various printer components a ene f 5 Monitors printer status Exit Gear 32 6 Maintains a running print count 7 Writes the NVRAM settings Exit Gear 17 8 Controls printer options The Print Engine Controller PWB uses a 32 bit microcomputer and ASICs Application Specific Integrated Circuits The 32 bit microcomputer includes ROM RAM a 16 bit integrated timer Exit Gear 33 programmable timing pattern controller a watch dog timer serial communication interfaces an AID converter a D A converter UO ports a DMA controller and a refresh controller Exit Gear 28 FRONT The System Controller connects to the Print Engine Controller PWB directly The Control Panel Et Soar is connected to the System Controller and signals pass through the Print Engine Controller PWB via the System Controller 6020 Figure 8 Drive transmission to the Exit Components Initial Issue 0212000 General Procedures Information DocuPrint N2125 633 GP 3 3 GP 3 4 GP 3 5 Power Supplies The LVPS Low Voltage Power Supply Figure 1 The LVPS uses a resonance type switching regulator The LVPS supplies 24VDC 5 0 33 00 The LVPS has built in over current protection If an excessive current b
181. e Revision Page Revision Page Revision Page Revision Page Revision Title 2 2000 2 16 2 2000 2 51 2 2000 2 2 2000 4 72 2 2000 2 2000 2 17 2 2000 2 52 2 2000 43 2 2000 4 73 2 2000 2 2000 2 18 2 2000 2 53 2 2000 4 4 2 2000 4 74 2 2000 2 2000 2 19 2 2000 2 54 2 2000 4 5 2 2000 4 75 2 2000 2 2000 2 20 2 2000 2 55 2 2000 4 6 2 2000 4 76 2 2000 2 2000 2 21 2 2000 2 56 2 2000 4 7 2 2000 477 2 2000 2 2000 2 22 2 2000 4 8 2 2000 4 78 2 2000 2 2000 2 23 2 2000 E a 2 2000 4 9 2 2000 4 79 2 2000 2 2000 2 24 2 2000 9 2 2 2000 4 10 2 2000 4 80 2 2000 2 2000 2 25 2 2000 3 3 2 2000 4 11 2 2000 4 81 2 2000 2 26 2 2000 3 4 2 2000 4 12 2 2000 4 82 2 2000 2 2000 2 27 2 2000 3 5 2 2000 4 13 2 2000 4 83 2 2000 2 2000 2 28 2 2000 3 6 2 2000 4 14 2 2000 4 84 2 2000 2 2000 2 29 2 2000 3 7 2 2000 4 15 2 2000 4 85 2 2000 2 2000 2 30 2 2000 3 8 2 2000 4 16 2 2000 4 86 2 2000 2 2000 2 31 2 2000 3 9 2 2000 4 17 2 2000 4 87 2 2000 2 2000 2 32 2 2000 3 10 2 2000 4 18 2 2000 4 88 2 2000 2 2000 2 33 2 2000 3 11 2 2000 4 19 2 2000 4 89 2 2000 2 2000 2 34 2 2000 3 12 2 2000 4 20 2 2000 4 90 2 2000 2 35 2 2000 3 13 2 2000 4 21 2 2000 4 91 2 2000 2 2000 2 36 2 2000 3 14 2 2000 4 22 2 2000 4 92 2 2000 2 2000 2 37 2 2000 3 15 2 2000 4 23 2
182. e Sensor PL 9 1 Frame amp Size Sensor 545 Electrical PL 10 1 Electrical 516 Optional Feeder 1 PL 11 1 500 Sheet Feeder 1 of 2 517 Optional Feeder 2 PL 11 2 500 Sheet Feeder 2 of 2 518 Envelope Feeder 1 PL 12 1 Envelope Feeder 1 of 2 519 Envelope Feeder 2 PL 122 Envelope Feeder 2 of 2 520 Initial Issue 202000 Parts list DocuPrint N2125 54 02 2000 Initial Issue 52 DocuPrint N2125 Introduction Overview The Parts List section provides exploded view illustrations of all spared subsystem components and listing of the corresponding part numbers The illustrations show the relationships between parts Organization of this Section The following elements make up the Parts List section Parts Lists PL Each item number in the part numbers listing corresponds to an item number in the illustration All the parts in a given subsystem of the machine will be located in the same illustration or in a series of associated illustrations The parts which are not spared are indicated by in the Part column Exploded View Illustrations item that is called out on an illustration has a corresponding listing within this section Components are given item numbers that correspond to the part number listings Hardware items are lettered All hardware dimensions are in millimeters unless otherwise noted Assemblies and kits are a combination of several separato components A bracket is used on the
183. e corresponding coordinates in the second column such as 17 or 7 Go to the map Cross reference the letter and number of the P J coordinates with the letters and numbers on the map The Pid connector is located within the area where the coordinates cross Initial Issue 02 2000 DocuPrint N2125 73 Wiring Data Section Contents Base Engine PA Table Table 1 Base Engine Pid Table Connecter Coordinate Descrpron Table ine Engins PAS RES Figure 2 Connects the Size T PWE to the Print Engine Controller Connector Coordinate Descriptor pws E20 Figure Connects the BTR Roll to the PIF HET Figure 2j Connects the Duplex PWB to the Print Engine Controller 075 E29 Figure 1 Connects the Detack Saw o the HVPS pus PTET 20 Figure T Connects the Print Engine Controller PWB To tne 550 Sheet PSS eT Figure 2 Connects ie OCT PWB To the Print Engine Controller Feeder pus PUT GIS Figure 1 Connects the Feeder PWB to the Tay 1 Size PWE PUTA Figure 2 Connects ins System Controller PWB To the Print Engine PIJET Figure T Connects the Tarn Cluich Assembly to the Feeder PWE Controller PWB FUSE CTS Figure T Connects the Feed Clutch Assembly to the Feeder PWS Pras G33 Figure 2 Connects the Duplex S
184. e of the printer over the edge of the stand table by approximately 1 inch 7 Lower the cover to disconnect the three hooks at the top and bottom of the Right Cover Figure 1 Figure 1 Right Cover Replacement 1 Reinstall the components in the reverse order Initial Issue 0212000 Repair Adjustment DocuPrint N2125 47 REP 1 5 REP 1 6 Front Cover Assembly Parts List on PL 1 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 2 4 Open the Front Cover Assembly Slide the Cover Stopper to the left or right and remove fram the right cover Figure 1 Remove the K clip that secures the Front Cover Assembly to the left stud of the printer Figure 1 Slide the Front Cover to the right and remove Figure 1 2125 4008 Figure 1 Front Cover Replacement 1 Reinstall the components in the reverse order REP 1 7 Left Front Cover Parts List on PL 1 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Front Cover Assembly REP 1 6 Remove the three screws securing the Left Front Cover Figure 1 Use a small screwdriver to press on the locking tab and the remove the cover Figure 1 205 4n Figure 1 Left Front Cover Replacement 1 Reinstall the components in the reverse order Repair Adjustment REP 1 6 REP 1 7 02 2000 Initial Issue DocuPrint N2125 REP 1 8 Rear Cover Assembly Parts
185. e reappears YN Switch the printer power off Install the removed DIMM in Slot 2 bottom DIMM slot Switch the printer power on The error code reappears YN Switch the printer power Remove DIMM from Slot 2 bottom DIMM slot and install the DIMM in slot 1 middle DIMM slot Switch the printer power on The error code reappears YN Attribute the problem to a poor connection between the DIMM and the System Controller PWB Go to Initial Actions Replace the System Controller PWB REP 9 2 Replace the DIMM installed in slot 2 with a new DIMM PL 10 1 Replace the System Controller PWB REP 9 2 Status Indicator Repair Analysis Procedures RAP 44 RAP 45 0212000 Initial Issue 240 DocuPrint N2125 RAP 46 DIMM 2 0102 Procedure Switch the printer power off Remove the Left Interface Cover REP 1 1 Remove the DIMM installed in Slot 2 slot 2 is the bottom DIMM slot Switch the printer power on The error code reappears YN Switch the printer power off Install the removed DIMM in Slot 3 top DIMM slot Switch the printer power on The error code reappears YN Switch the printer power off Remove DIMM from Slot 3 top DIMM slot and install the DIMM in slot 2 bottom DIMM slot Switch the printer power on The error code reappears YN Attribute the problem to a poor connection between the DIMM and the System Controller PWB Go to Initial Actions Replace the System Controller PWB REP 9 2 Replace the DI
186. e the Left Interface Cover REP 1 1 Inspect the grounding screw and wire connected to the Main Power Connector The cable is grounded properly YN Attach the grounding screw properly Replace the Print Cartridge PL 8 1 The Electrical Noise problem is still present YN Problem solved Remove the Fuser Assembly REP 6 2 Remove the end covers see REP 6 9 Inspect the cables of the Heater Rod The cables are attached properly YN Attach the cables properly or replace the Fuser Assembly REP 6 2 Disconnect the HVPS PiJ26 from the Print Engine Controller PWB Run 20 Test Prints the prints willbe blank The Test Prints run normally Replace the Print Engine Controller PWB REP 9 3 The problem is still present YN Problem solved Inspect of the grounds in the printer All the grounds are securely connected YN Perte rc Replace the following components one at a time until the cause of the problem is found HVPS PWB Assembly REP 9 6 Print Engine Controller PWB REP 9 3 Initial Issue DocuPrint N2125 02 2000 239 Status Indicator Repair Analysis Procedures RAP 43 RAP 44 Print Cartridge PL 8 1 Fuser Assembly REP 6 2 Replace the HVPS PWB Assembly REP 9 6 RAP 45 DIMM 1 0101 Procedure Switch the printer power off Remove the Left Interface Cover REP 1 1 Remove the DIMM installed in Slot 1 slot 1 is the middle DIMM slot Switch the printer power on The error cod
187. e voltage between the bottom terminal on the mating con nector on the Tray 2 feeder and frame ground The voltage is 24 0VDC YN Remove paper tray 1 Check the voltage between the bottom terminal on the mating connector on the Tray 1 feeder and frame ground The voltage is 24 0VDC YN Replace the Tray 1 Size PWB REP 3 13 If the problem persists replace the Tay 1 Feeder PWB REP 3 9 Check the resistance between the bottom and top terminals of the mating connector paper tray 1 There is continuity between the two pins YN Replace the paper tray mating connector PL 2 2 Check that the paper tray mating connector and the feeder mating connector are properly aligned when the tray 1 is inserted into the feeder The mating connectors are properly connected when the paper tray is inserted YN Pemai or replace compan as ers Replace the Tray 1 Size PWB REP 3 13 If the problem persists replace the Tray 1 Feeder PWB REP 3 9 Check the resistance between the bottom and top terminals of the mating connector on the paper tray 2 There is continuity between the two pins Y N Replace the paper tray mating connector PL 2 2 a 8 Check that paper ray mating connector and the feeder mating connector are properly aligned han the ie e derte into the feeder The mating connecton are properly Connected when tha paper tre le neared oF Complet Replace the Tray 2 Size PWB
188. e when performing any proce dure where screws or components may damage the cartridge Adjustment Other than side to side and lead edge to trail edge registration the N2125 printer does not contain any field adjustable components WARNING Use of controls or adjustments other than those specified in this manual may result in an exposure to dangerous laser light Initial Issue DocuPrint N2125 43 Repair Adjustment Introduction Repair Adjustment 202000 Initial Issue Introduction 44 DocuPrint N2125 REP 1 1 Left Interface Cover Assembly Parts List on PL 1 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Loosen the two thumb screws that secure the Left Interface Cover Assembly Figure 1 2 Slide cover to the rear and remove Figure 1 2125_4003 Figure 1 Left Interface Cover Replacement 1 Reinstall the components in the reverse order REP 1 2 Left Cover Parts List on PL 1 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the Left Interface Cover Assembly REP 1 1 2 Remove the two screws securing the Left Cover to the printer Figure 1 Remove the Lett Cover Figure 1 2125 4027 Figure 1 Left Cover Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 Repair Adjustment 02 2000 REP 1 1 REP 1 2 45 REP 1 3 Option Cover Parts List on PL 1 1 Removal WARNING Switch off the power
189. ed and exit for contamination or obstructions Procedure Enter Diagnostics and select Test Print Scroll to Print Pattern and press Enter 4 Run five test prints The test prints have vertical streaks YON Exit diagnostics and enter the Menu Mode Print a Config Sheet The prints have verti cal streaks The problem appears to be with the host computer or the cables If the problems per sist replace the System Controller PWB REP 9 2 Remove and reseat the System Controller PWB If the problems persist replace the Sys tem Controller PWB REP 9 2 Install a new Print Cartridge Run a Test Print The vertical streaks are gone YN Inspect the laser beam path between the Laser Assembly and the Drum The laser beam path is free of obstructions Initial Issue DocuPrint N2125 02 2000 347 Image Quality Repair Analysis Procedures IQ RAP 6 IQ RAP 7 N Remove any obstructions from the laser beam path Inspect the BTR Assembly for contamination and wear The BTR is free of contamina tion and wear YN eie tm REP Za WARNING It the printer has been switched on the Fuser will be hot Open the Rear Cover Remove the Fuser Assembly Rotate the fuser idler gear manually and inspect the Heat Roll Open the fuser jam access cover Rotate the fuser idler gear manually and inspect the Pressure Roll The Heat Roll and the Pressure Roll are free of scratches and contamination YN Replace the Fuser Assembly
190. eder Assembly Bearing Figure 2 Feeder Assembly Replacement Reinstall the components in the reverse order Initial Issue DocuPrint 2125 423 Repair Adjustment REP 3 7 REP 3 8 Paper Feed Rolls Parts List on PL 3 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Open the Front Chute Assembly Figure 1 3 Release the locking tab on the Front Feed Roll and slide the roll to the right and remove Figure 1 4 Repeat with Rear Feed Roll Figure 1 Figure 1 Paper Feed Rolls Replacement 1 Reinstall the components in the reverse order REP 3 9 Feeder PWB Parts List on PL 3 1 Removal CAUTION These components are susceptible to electrostatic discharge Observe all ESD procedures to avoid damage WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left Interface Cover Assembly REP 1 1 3 Remove the Left Cover REP 1 2 4 Remove the Front Cover Assembly REP 1 6 5 Remove the Left Front Cover REP 1 7 6 Remove the Left Plate Assembly REP 1 11 7 Remove the Plate Handle REP 1 12 8 Open Rear Door 9 Remove the Top Cover Assembly REP 1 4 10 Remove the Right Cover REP 1 5 11 Remove the LVPS PWB REP 9 5 12 Remove the Paper Feeder REP 3 1 13 Disconnect P J64 P J65 P J66 and P J67 from the Feeder PWB 14 Remove the No Paper Actuator REP 3 3 18 Remove the four screws that secure th
191. egins to flow the DC supplies are shut down Switch the power supply OFF for 5 minutes then ON again to reset the circuit after an over current shutdown The LVPS also supplies AC power to the Heat Rod A circuit controlled by the Heat ON signal from the Print Engine Controller PWB switches power to the Heat Rod Main Power Such Fuse Fan E for Fan 206 Power 24 00 Supply Inverter E Heater Nowe oc T Grout Fier owe b Es p Supply 33 00 Power save Supply To Fusor 6085 Het Quartz Figure 1 LVPS Block Schematic Diagram The HVPS High Voltage Power Supply The HVPS supplies high voltages for the BCR BTR DB and DTS The HVPS receives 24 input from the LVPS along with nine control signals from the Print Engine Controller PWB The HVPS has built in overcurrent protection If an excessive current begins to flow in any of the four power supplies all of the supplies are shut down Switch the power supply OFF then ON again to reset the circuit after an overcurrent shutdown GP 3 6 Laser Control Warm up The Laser completes warm up when the SOS signal intervals are shorter than the READY ref erence value during three consecutive samplings of the SOS signal interval and when the actual Laser Diode laser power reaches the value that was set in NVM Configuration The READY interval for the SOS signal is approximately 98 of the SOS interval when the Laser Motor is ro
192. einstall the components in the reverse order REP 10 17 Offset Motor Assembly Parts List on PL 14 2 Removal WARNING Switch off the power and disconnect the Power Cord Remove the Offset Catch Tray REP 10 1 Remove the Exit Tray Extension REP 10 2 Remove the Exit Tray REP 10 3 Turn the Offset Catch Tray upside down Remove the Lower Cover REP 10 5 Hold open the Rear Cover Remove the Inner Exit Chute Assembly REP 10 6 Remove the Offset Assembly REP 10 16 Remove the two screws that secure the Offset Motor Figure 1 10 Remove the Offset Motor Assembly Figure 1 Figure 1 Offset Motor Assembly Replacement 1 Reinstall the components in the reverse order Repair Adjustment mum REP 10 16 REP 10 17 476 il Issue DocuPrint N2125 REP 10 18 Offset Assembly Home Sensor Parts List PL 14 2 Removal WARNING Switch off the power and disconnect the Power Cord Remove the Offset Catch Tray REP 10 1 Remove the Exit Tray Extension REP 10 2 Remove the Exit Tray REP 10 3 Turn the Offset Catch Tray upside down Remove the Lower Cover REP 10 5 Hold open the Rear Cover Remove the Inner Exit Chute Assembly REP 10 5 Remove the Offset Assembly REP 10 18 Disconnect P J226 from the Home Sensor Figure 1 Move the motor linkage until the flag is clear of the Sensor Figure 1 Release the locking tabs and remove the Offset Assembly Home Sensor Figure 1 Figure 1 Offset Assembly Home
193. els are readable Switch the printer power on If any of the customer selections were changed return them to the customers preferred settings Run final prints and verify image quality For Image Quality problems go to section 3 Image Quality Checkout Clean the general area Communicate with the customer to inform them of actions taken and to ensure all prob lems have been solved Initial Issue DocuPrint N2125 02 2000 17 Service Call Procedures 1 5 Service Call Procedures 022000 Initial Issue 1 5 18 DocuPrint N2125 Introduction Measurements Error Code Table Error Code Tables Base Printer RAP 1 AC Power RAP 2 DC Power RAP 3 DC Power Loading RAP 4 Tray Failure Power OHOn C3 RAP 5 Tray Empty CS RAP 6 Remove Output From Sid Bin C5 RAP 7 MBF Misteed E2 RAP 8 Paper Jam Misfeed E2 RAP 9 System Controller PWB RAP 10 Paper Jam Open Front Cover E3 11 Paper Jam Exit E4 RAP 12 Close Front CvriClose Rear Gur ES RAP 16 Install Print Cartridge 19 RAP 14 Toner Low J5 RAP 15 P1 Fuser Pause RAP 16 Motor Failure Power Off On U1 RAP 17 Laser Fail Power Off On U2 RAP 18 Fuser Failure Power U4 RAP 19 NVM Fail Power OfiOn US RAP 20 Fan Failure Power Of Now U5 RAP 21 Low Paper Tray f RAP 22 Paper Size Error RAP 23 Low Toner Sensor Failure RAP 24 Incperatve Printer RAP 25 Maltunctioning LCD LED RAP 26 Inoperative Keypad RAP 27 Errati
194. em Controller PWB Switch tho printer power on The error code reappears YN Switch the printer power off Reinstall one of the removed cables or options Switch the printer power on The error code reappears YN Repeat the step with the next option or cable Replace the option just installed Replace the System Controller PWB REP 9 2 RAP 10 Paper Jam Open Front Cover E3 Paper is late to the Exit Sensor paper is late off the Registration Sensor or Registration Sensor is actuated at power on Procedure Switch the printer power off Open the Front Cover and remove the Print Cartridge Check the printer for contamination paper scraps or other obstructions The paper path is clean and free of obstructions YN Clean components and remove all obstructions Open the Rear Cover Remove the Duplex unit if installed Open the Fuser Access Cover Check for contamination paper scraps or other obstructions The paper path is clean and free of obstructions YN Clean components and remove all obstructions Rotate the Fuser Idler Gear The Fuser Idler Gear rotates smoothly YON Replace the Fuser Assembly REP 6 2 Check the paper in all trays The paper loaded in the paper trays is damp wrinkled or damaged YN The paper size used specifications YN Replace with paper meeting size specifications Close the Rear Cover Cheat the Front Cover Interlock Enter diagnostics and select Com ponent Test Scr
195. emove the Tray from the Feeder 4 Remove the 550 Sheet Feeder Left Cover REP 11 3 5 Remove the Size Sensor Housing Assembly REP 11 17 NOTE Observe orientation of switch actuators before removal 6 Remove the four screws that secure the Size Sensor Actuators to the Size Sensor Hous ing Figure 1 7 From the back side disengage the two locking tabs that secure the Size Sensor Actuators to the Housing Assembly and remove Figure 1 Figure 1 Size Sensor Housing Replacement Refer to inset A 1 Position the Size Sensor Actuators below the Housing Assembly as shown 2 Press and hold B to allow the actuators to fall into position 3 During reassembly ensure that locking tabs slide into position Reinstall the components in the reverse order Repair Adjustment pum REP 11 18 490 Initial Issue DocuPrint N2125 REP 11 19 Size PWB Parts List on PL 9 1 Removal CAUTION These components are susceptible to electrostatic discharge Observe all ESD procedures to avoid damage WARNING Switch off the power and disconnect the Power Cord Remove the printer from the 550 Sheet Feeder REP 11 1 Remove the Tray from the Feeder Remove the 550 Sheet Feeder Left Cover REP 11 3 Remove the 550 Sheet Feeder Size Harness Assembly REP 11 16 Remove the Size Sensor Harness Assembly REP 11 17 Remove the Size Sensor Housing REP 11 18 Disconnect P J53 from the Tray 2 Size PWB Figure 1 Remove the two s
196. en simultaneously press keys 0 and 5 to activate the fuser reset function If keys 0 and 5 are not pressed within 5 seconds of the IOT message printer will go to the normal boot process Wait for message Reset Completed Please reboot to appear on the LCD then release both keys Power off power on GP 2 10 Reset Menu Power down printer Simultaneously hold keys 0 and 4 down Power up printer wait for first to display on the LCD line 1 then release both keys Let printer go to Ready mode Press 1 or 5 to scroll to Reset Menu Press 2 or 6 to select Reset items Table 1 Press 3 or 7 to change the values NOTE After execution all values except Demo Mode will return to Default value 8 Press Enter to execute Table 1 Reset Menu Reset Menu Reset Menu Values Factory Deus Yes resets USB System POC Tay and Par allel menu No default Network Defaults Yes resets Ethernet and Novel menu No default Demo Nes No default Delete AT Jobs Yes Hard drive installed No default Disk Taare Yes Hard drive installed No default Dak Format Yes Hard drive instalied No default Flash Format Yes Flash DIMM installed No default General Procedures Information GP 2 9 GP 2 10 Initial Issue DocuPrint N2125 02 2000 622 GP 2 11 System Controller Reset Resets the System Controller to factory defaults NOTE This wil reset all network address
197. ensor fo the Duplex PWE FUSE D18 Figure 1 Connects the Low Paper Sensor to the Feeder PWE PNTOT RSS Foue Connects the SVDC PWS to the UVP PBT BTE Figure 1 Connects the Paper Lif Motor to the Feeder PWE Pa Figure 2 Connects the SOS Sensor to the Print Engine Controller PUz6i R25 Figure 1 Connects the To the Print Engine Controller PUB gus ROS Figure Y Connecis the Fuser he PVPS PURE Were Comes te Laser iori the rn Engine Contatar Bus 077 Foe 1 Connects the Sze PWB othe Print Engine Con a a NB TS TS EGS GOT PU amp i A25 Figure 1 Connects the Turn Clutch to the Feeder ERE Pues A25 Figure 1 _ Connects the Feed Clutch to the Feeder PWB PTET Ait Figure 3 Connects the Laser PWB to he Print Engine Controller Pijet 628 Figure 1 Connects the Low Paper Sensor to the Feeder PWE pus PUBS D29 Figure 1 Connects the Stack Height Sensor to the Feeder PWE P21 Figure 27 Connects the LVPS to the Print Engine Controller PWS Pieri B20 Figure 1 Connects the Motor Harness Assembly to the Socket P282 Figure 2 Connects the System Controller PWB to the P872 C20 Figure 1 Connects the Cassette Assembly to the Feeder Assembly PIES RAT Figure 2 Cannecis the Fan Assembly to The VPS PIU67S___ B20 Figure 1 Connects the Motor Assembly to ine Connector PIERO Figure 2 Connects the Front Interiock Switch To ine Figure 2 Connects the Fuser As
198. ensure that the paper is within specification Procedure Replace the paper with fresh dry paper from an unopened ream Run test print prob lem is still present Set NV code to the factory default value Run 25 test prints The present YN Problem Solved problem is still Increase the fuser temperature by one increment The overall print densi YN Goto IQ RAP 1 is within specitication Open the Rear Cover Remove the Fuser Assembly Rotate the fuser idler gear manually and inspect the Heat Roll Open the fuser jam access cover Rotate the fuser idler gear manually and inspect the Pressure Roll The Heat Roll and the Pressure Roll are free of scratches and contamination Initial Issue DocuPrint N2125 02 2000 Image Quality Repair Analysis Procedures IQ RAP 16 IQ RAP 17 Grip Fine anti REP Open the fuser jam access cover Rotate the fuser idler gear manually and inspect the contact between the Heat Roll and the Pressure Roll along the rotation The Heat Roll and the Pres sure Roll are contacting each other uniformly YN Replace the Fuser Assembly REP 6 2 Replace the following in order until the defective component is found Fuser Assembly REP 6 2 Print Engine Controller PWB REP 9 3 LVPS PWB REP 9 5 IG RAP 18 Resolution The two pixel lines and halftone patches cannot be reproduced clearly on the print Initial Actions Ensure that the print densit
199. epair or replace the Registration Rolls REP 5 6 as necessary Status Indicator Repair Analysis Procedures RAP 15 RAP 16 02 2000 Initial Issue 222 DocuPrint N2125 Remove the paper from al paper trays Scroll to 1 Feed Clutch and press Entar The Main Motor continues to rotate smoothly YN Repair or replace the Tray 1 Feed Clutch or Feed Shaft REP 3 6 The printer has a Tray 2 Replace the Main Motor Assembly REP 8 1 Scroll to Tray 2 Feed Clutch and press Enter The Main Motor continues to rotate smoothly YN Tay 2 Fd chr Feed Shatt EP 1 10 The printer has a Tray 3 YN Paice te a cr ame REP 3 Remove the paper from all paper trays Scroll to Tray 3 Feed Clutch and press Enter The Main Motor continues to rotate smoothly YN Repair or replace the Tray 3 Feed Clutch or Feed Shaft REP 3 6 RAP 17 Laser Fail Power Off On U2 There is a problem with the Laser Assembly Procedure Enter Diagnostics and select NVM Config password 0734 Check the value for Print Resolu tion and for Laser Power The value for Resolution is 02 and for Laser Power is 8 Y N Replace the Print Engine Controller PWB REP 9 3 Select Component Test then ROS Motor You can hear the Scanner Motor spin up YN Go to RAP 30 Switch the printer power off Remove the Left Interface Cover REP 1 1 the Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Disconnect P J21 fr
200. er X Reinstall fhe componenti in he reverse order Initial Issue pen Repair Adjustment DocuPrint N2125 4 105 REP 13 5 REP 13 6 REP 13 7 Weight Arm REP 13 8 Tray Extension Parts List on PL 12 1 Parts List on PL 12 1 Removal Removal WARNING WARNING Switch off the power and disconnect the Power Cord Switch off the power and disconnect the Power Cord 1 Remove the Envelope Feeder from the printer 1 Remove the Envelope Feeder from the printer 2 Deflect the center of the Weight Arm until the end of the arm is free of the hinge pin Fig 2 Remove the Bottom Cover REP 13 1 1 3 Pull the extension out at 45 angle and remove Figure 1 3 Remove the Weight Arm Figure 1 Figure 1 Tray Extension Replacement 1 Reinstall the components in the reverse order Figure 1 Weight Arm Replacement 1 Reinstall the components in the reverse order Repair Adjustment 0212000 Initial Issue REP 13 7 REP 13 8 4 106 DocuPrint N2125 REP 13 9 No Paper Actuator Parts List on PL 12 2 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the Envelope Feeder from the printer 2 Remove the Bottom Cover REP 13 1 3 Carefully pry up on the hinge pins to remove the actuator trom the mounting Figure 1 4 Rotate the No Paper Actuator upto remove Figure 1 Figure 1 No Paper Actuator Replacement 1 Reinstall the components in the reverse order REP 13 10 No Paper Sensor Parts
201. er actuator moves smoothly up and down YN Inspect the Low Paper Actuator Repair or replace as required Enter Diagnostics and select Component Test Scroll to Sensor Input test and press Enter Press and release the Low Paper Actuator The number on the LCD increments each time you press and release the actuator YN Switch the printer power off Remove the Lett interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Switch the printer power on On the Print Engine Controller PWB check the voltage between P J33 pin 8 and frame ground The voltage is 3 3VDC YN On the Print Engine Controller PWB check the voltage between P J28 pin 10 and frame ground The voltage is 3 3VDC YN Replace the LVPS REP 9 5 Replace the Print Engine Controller PWB REP 9 3 Enter diagnostics and select Component Test Scroll to Sensor Input test and press Enter On the Print Engine Controller PWS for Tray 2 check the voltage between P J33 pin 9 and frame ground for Tray 3 check the voltage between P J33 pin 10 and frame ground Check the voltage as you actuate the Low Paper Sensor The voltage changes from 3 3VDC to 0 0VDC YN Replace the Low Paper Sensor REP 11 14 for the affected tray If the problem per sists replace the Feeder PWB REP 11 9 then the Size PWB REP 11 19 Replace the Print Engine Controller REP Replace the Print Engine Controller PWB REP RAP 53 550 Sheet Feeder
202. er for contamination paper scraps or other obstructions The printer and Envelope Feeder is clean and free of obstructions Clean feeder and remove all obstructions Check the Feed Belts Check for dirt or contamination the top side and the under side of the belt Both sides of the belt are clean Replace the Feed Belts REP 19 17 Enter Diagnostics and select Component Test Scroll to Confirm EBF Clutch and press Enter You can hear the clutch energiz Go to RAP 63 Scroll to Main Motor Operation and press Enter Scroll to Confirm EBF Clutch Watch the Feed Belts and Feed Rollers and press Enter The Feed Belts and Feed Rollers all rotate Ensure the Envelope Feeder is installed properly and is contacting the printer drive gear The Envelope Feeder YN Reinstall the Envelope Feeder correctly Remove the Envelope Feeder and check the feeder drive gears All gears are in good condition and operating properly YN Replace the gears as necessary PL 12 2 Replace the Envelope Feed Clutch REP 13 12 If the problem persists Replace the Envelope Feeder PWB REP 13 3 Perform RAP 32 to check the Registration Sensor The Registration Sensor is operating correctly YN Replace the Registration Sensor 5 4 Replace the Print Engine Controller PWB REP Initial Issue pum DocuPrint N2125 2 55 Status Indicator Repair Analysis Procedures RAP 66 Status In
203. erlock Assembly 5VDC PWB and System Controller PWB Figure 8 Table 3 Ps PWS P 7008 Figure 8 VPS lt gt Fan Assembly lt gt Front Switch Interlock lt gt 5VDC PWB lt gt System Controller PWB LVPS PWB lt gt Fan Assembly Front Switch Interlock Assembly SVDC PWB and System Con troller PWB Table 3 shows the signal names for the LVPS PWB lt gt Fan Assembly path Table 3 Signal Names Signal Name Description FAN ALARM Actuates the Cassette 1 Feed Solenoid Normally LOW OV and HIGH a SV when paper is fed Wiring Data 272000 Initial Issue Base Engine 740 DocuPrint N2125 Print Engine Controller PWB lt and Fuser Assembly HVPS PWB lt gt BTR Print Cartridge jure 9 Table 4 Table 5 Print Engine Controler PWB Pies 15 4l i3 2 i LEE EP Cartridge Side Guide Assy R HVPS ars Roll Detack Saw TR BTR Chute Trans Assy Fuser Assy 7008 Figure 9 Print Engine Controller PWB lt gt HVPS PWB lt gt BTR lt gt Print Cartridge lt gt Print Engine Controller PWB lt gt HVPS PWB lt gt BTR Print Gartridge and Fuser Assembly Table 4 Signal Names Signal Wame Description abl
204. es System Controller Software Version and Print Engine Con troller Software Version ES Description System Controller PWB Test Print for 81 2 x 11 and A4 paper sizes tamed on Printing of Test Patterns from selectable input sources to selectable output destina lashing Input Sources MBF Tray 1 Tray 2 Tray 3 MBF Duplex Tray 1 Duplex Tray 2 Speed OF 10 Mbit Ethernet Duplex and Tray 3 Duplex Red 100 Mbit Ethernet Output Sources Top Tray OCT OCT with offset Etnernet ink ound 2 and canbe terminated at tine by pressing Aciivily OF Indicates no activity on Ethernet ink 9 Amber Indicates activity on Ethernet link Error Log enablement and print capability l This feature enables system administrator to be notified of various reactive events the m printer via E mail messages The system administrator configures which events 1 be not ink 1 onsumable toner is low Activity e veio b al i address or E mail address ve DocuPrint N2125 615 GP 2 1 GP 2 2 GP 2 3 Keys Pad amp LED Layout Figure 1 illustrates the layout of the Control Panel GP 2 4 IOT Diagnostics The IOT diagnostics provide the ability to Print IOT test page Read or Set configuration values Access to is password protected Monitor and verify operation of input sensors for IOT and options Monitor and verity operation of all Output devices for IOT
205. es to the factory default 1 Power down printer 2 Simultaneously hold keys 0 and 7 down 3 Power up printer wait for message NVM Erased to appear on the LCD then release both keys Initial Issue DocuPrint N2125 623 General Procedures Information GP 2 11 General Procedures Information 022000 Initial Issue GP 2 11 624 DocuPrint N2125 GP 3 1 Print Process Overview Print Process Overview Figure 1 Figure 2 There are seven steps in the N2125 print process This seven step cycle is repeated for each sheet of paper that is sent through the printer The seven steps in the print process are 1 Charge bias charge roll places a uniform negative electric charge on the drum surface 2 Exposure The laser scanner scans the drum surface with a very thin beam of laser light modulated according to the signal from the Print Engine Controller to form an invisible electrostatic latent image on the drum surface 3 Development Attracts toner to the electrostatic latent image on the drum surface to form a visible toner image 4 Transfer Transfers the toner image from the drum surface to the paper 5 Discharge Partially neutralizes the charge on the paper to allow the paper to peel off the drum sur face Fusing Permanently fixes the toner image to the paper by heat and pressure 7 Cleaning Cleans the drum surface of the remaining toner Y 1 pfe Exposure 3 Deeper 4 ta
206. est Press key 2 or 6 to select Component Test Item Table 2 Press key 2 or 6 to scroll through the items menu Press key 4 to execute the test item appearing on the LCD Press and hold key 0 for 1 second to exit any Component test at any given time 0 Press key 1 or 5 to get back to the Main Menu selection of Component Test or NVM Con fig or Test Print Table 2 Component Menu Table Menu Tem Comment Print Counter Reading Print count displays for 5 seconds Sensor Input Test Press key O lo exit Read Fuser Set Temperature Fuser set temperature displays for 5 seconds Read Fuser Temperature Continuously updating temperature reading press key 0 to exit Confirm MBF Feed Solenoid on Tray 1 Feed Cluich Confirm Tray 2 Feed Clutch on Tray 3 Feed Cluich Confirm EBF Clutch nfir OPT Dir Operation General Procedures Information GP 2 6 GP 2 7 02 2000 620 Initial Issue DocuPrint N2125 Table 2 Component Menu Table GP 2 8 Entering Download Mode Wana Tem Comment Ee 2 Press and hold keys 1 and 5 as you switch printer power on Confrm Reg 3 br message Entering Down Load Mode to appear on the LCD charge FT DC Operation Charge Roll AG Operation 5 From the PC in DOS command mode Change directory to where the
207. ew Print Cartridge Run a Test Print The print is still damaged rin the sean dimction Figure 1 YN Problem Solved Replace the following in order until the defective component is found Fuser Assembly REP 6 2 Chute Transport Assembly REP 6 1 BTR Assembly REP 7 1 MBF Feed Roll Assembly REP 4 2 Retard Pad Assembly REP 47 Turn Roll Assembly REP 11 8 Paper Feed Rolls REP 11 11 Tray Assembly REP 4 4 Go to IQ RAP 13 loon Aver is 120382925 a Per At 120081085 are Ane snot 1202102 laa Ms 1202810005 are over 120382095 a Pr 202802025 are rer 120282825 Le Aer 2028823 tore us A 120292625 tare Mn N2125 3325 WD taa As Figure 1 Registr Initial Actions Check to ensure that the paper is within specification Check that the paper supply is dry and fresh and loaded correctly Check that the Paper Tray guides are set correctly Check that rollers and other components in the paper path are clean and unobstructed Procedure Run a test print The Test Print output image is properly registered YN Perform the registration check ADJ 1 1 The printer registration is set correctly YN Perform the registration procedure ADJ 1 1 If misregistration occurs in the process direction replace in sequence as necessary Rub ber Registration Rolls REP 5 6 Registration Clutch REP 5 5 Main Drive Gear Assem bly REP 8 2 Main Motor Assembly REP 8 1 Registration Sensor REP 5 4 Print Eng
208. eys Toss wth dashed i border appear only i hen the default font tis scalable i Job Menu Password Menu Tray Menu Pitch PCL Menu System Menu Parallel Menu Serial Menu USB Menu Ethernet Menu Token Ring Menu Novell Menu Print Menu Reset Menu Font Number Symbol Set Orientation Form Length Line Terminal Manus marked with 5 oniy appear 1 certain options are installed See Maps for details of each menu 17 The Reset Menu is only visibile in tho mer list the printer is powered while pressing the Online and Enter keys Value Keys Desktop Legal ISOLT ISOL2 Ms Publ ISOLS Pe e IS04 PC8DN 1506 16011 PC 850 158015 PC 852 16017 PiFont 15021 PS Math IS060 PSTed Roman 9 60 Inches 64 Milimeters Figure 4 PCL Menu Enter Key J Vn int Math us Win 3 0 Win Lt Win L2 Win L5 1S0 Lain Cyr PC Cyrilic Latin 6 General Procedures Information GP 4 1 02 2000 Initial Issue DocuPrint N2125 System Menu Select the System Menu using the Menu Up and Menu down keys Select a variable with Item Up or Item Down keys Use the Value Up or Value Down keys to scroll to the requested value Use Enter key lo load value in NVRAM Asterisk indicates factory default values Keys Vas Kaye English Later 5x11 Espanol Legal Srt Fancais Folo 65xto talano Ledger 11x17
209. feed E2 Paper arrives early or late to the Registration Sensor Procedure Switch the printer power off Open the Front Cover Check the MBF Chute for contamination or obstructions The MBF is free of contamination paper or other obstructions YN Clean the MBF and remove the paper or obstruction Check the MBF Feed Roll for contamination and wear The feed roll is clean and in good Replace the MBF Feed Roll REP 4 3 Enter Diagnostics and select Component Test Scroll to Confirm MBF Feed Solenoid and press Enter 4 You can hear the solenoid energize YN Goto RAP 41 Open the Front Cover and cheat the Front Cover Interlock Scroll to Main Motor Operation and press Enter The MBF drive gears rotate smoothly YN Check repair or replace the Drive Gear PL 5 1 Main Drive Gear Assembly REP 8 2 Main Motor Assembly REP 8 1 as necessary Scroll to Confirm MBF Feed Solenoid and press Enter 4 The Feed Roll Shaft rotates the Pick up Cams move and allow the Bottom Plate to contact the Feed Roll and the Feed Roll Shaft stops after one complete revolution YN Remove the MBF Chute Assembly REP 4 1 and repair of replace the components as necessary Check the Registration Sensor RAP 32 If the Registration Sensor is good and the problem persists replace the Print Engine Controller PWB REP 9 3 Status Indicator Repair Analysis Procedures RAP 6 RAP7 02 2000 Initial Issue 246 DocuPrint N2
210. fr fier os Lang 2670 35 6mm PES TIED EO TTX Sim esos res pes Gen Simei With su card SES Length 148 5 254 0mm Haga iUc TRU BST Sm TOUS os e CS mer aa x 583 1215 9 3 8 5 Late 270 088 rm 6 EF TOO BETA Sper CUE er e e er egg sni Envelope 757 ser ever 957 i ONTO OTE TG Sie CUS eres fos es ain o sone Envelope 987 ser ao CS Eme S2 0x DEED ESET CUS fes er temo WEISE B lope ser 2158mm 39 85 DL EE EE CE EL US erez ez ves Longi 1480 a5 mm lope eo ser les ve EISSx PTE TEE form ns ver pes es ences 11 09 ser ser tater asp TOOT S670 mm GET Simpler Simplex RS Wes ee ences rr ser sies TEXT EHX Simpler NS Se os es teer non ser Labs TOD XRT Om Simp NS os es ne nes ser ser Coston Sper EFE ets amm 88 engin 127 0 388 6 mm 57 14 General Procedures information inital issue GP 1 5 6 10 DocuPrint N2125 GP 1 6 Printing Accuracy Lead Edge Registration 2 0mm maximum Side Edge Registration 2 5mm maximum Skew 1 2mm maximum at the distance of 190mm GP 1 7 CRU Print Cartridge Fuser Assembly Print Cartridges Two Print Cartridges are available for the printer The following figures represent the number of impressions on an average 5 image coverage on Letter size paper in Simplex printing The Duplex printing is evaluated a
211. front of the tray the chute guides paper from 2to the Tray 1 turn rolls Check for contamination paper or other obstructions The chute is clean and free of obstructions YN Remove obstructions and clean chute Replace paper tray if necessary PL 2 1 The jams occur when feeding from tray 3 Remove tray 2 and place the tray in feeder 1 Place tray 1 in feeder 2 Enter diagnostics and select Test Print Run 20 to 25 test prints from tray 2 All prints completed sucess fully YN Remove the tray currently in feeder 2 Check the Nudger and Feed Ralls in feeder 2 for contamination and wear The Feed Rolls are clean and in good condition YN Replace the Feed Rolls REP 11 11 Check the Tray 2 Turn Roll Assembly Check for obstructions contamination or wear The Turn Rolls are clean and in good conc YN Remove the obstruction clean or replace the Turn Roll Assembly REP 11 8 Replace the Feeder PWB REP 11 9 If the problem persists replace the Size PWB REP 11 19 then the Print Engine Controller REP 9 3 The paper tray currently in feeder 1 appears to be defective Perform RAP 37 to check the fray motor If RAP 37 checks out correctly check the paper tray for contamination obstructions broken or deformed parts Replace the paper tray if necessary PL 2 1 Remove Tray 1 and Tray 2 Check the paper chute at the front of both trays the chute guides paper from Tray 3 to the Tray 2 turn rolls and from Tra
212. g in the System Print Menu Plain Custom menu Reset Menu Preprinted Statmt 5x8 5 Letterhead 25105 2 User defined paper pes are only Transparency displayed if loaded After a factory Prepunched default or setting a User pe to al Labels spaces these types wil not be Bond Plain displayed Recycled Preprinted Color Letterhead 3 Tray sequences and Tray Types are Cardstock Transparency only displayed which include tray User type 1 note 1 Prepunched options currently installed User type 2 note 2 Labels User type 3 note 3 Bond 4 The default value for Tray User type 4 note 2 Recycled Sequenco is a function of options User type 5 note 5 tuer installed Cardstock 2 User ype 1 5 All tems below Config Fuser are Menus marked wi oniy appear User type 2 not visible unless Config Fuser is certam options are installed Gee Mint User ype 3 es set lo ON Maps for details of each menu User type 4 The Reset Menu is only visible in the Low menu list if the printer is powered thie pressing the Onine and Enter Figure 3 Tray Menu Initial Issue pum General Procedures Information DocuPrint N2125 649 GP 4 1 PCL Menu Select the PCL Menu using the Menu Up and Menu down keys Select variable with Item Up Item Down keys Use the Value Up or Value Down keys to scroll to the requested value Use Enter key to load value in NVRAM Asterisk indicates factory default values K
213. g the drum discharges the surface charge The BCR is a conductive roll that is positioned slightly above the surface of the drum The HVPS PWB supplies the BCR with two voltages a negative DC charge voltage and an AC discharge voltage The negative DC voltage creates a uniform negative charge across the surface of the drum The AC voltage removes any residual DC charge that was left from the previous print cycle DocuPrint N2125 6 25 02 2000 General Procedures Information GP 3 1 Charged Negative Charged Poste Photoconductive Layer Conductive Layer Figure 3 Side View Block Diagram of the Drum Charge Process 2 Exposure The Raster Output Scanner Laser generates an invisible beam of cohesive light called a laser beam Image data received from the print controller modulates this beam turning it on and off according to image information Through the use of a series of rotating and stationary mirrors within the Laser Assembly the beam scans the negative charged drum surface Whenever the print controller sends command to print a black pixel the laser switches on long enough to shine onto the drum at a single pixel point That point is now discharged and is less negative relative to the surrounding negative charge 3 Development Figure 4 The toner in the Print Cartridge has a magnetic property that causes it to adhere to the Magnetic Roll The Charge Metering Blade CM Blade spreads the
214. ge Printing is set to of 2 Set the Default Tray 3 Enter diagnostics and select Test Print 4 Scrollto Print Pattern and press Enter to run a IOT Test Pattern 5 After at least two prints are completed Figure 1 press and hold the 0 key for ono sec ond to stop printing 6 The measurement should be made on two consecutive test patterns from each tray Measure the distance from the lead edge of the paper to the lead edge of the image A and measure the distance from the trail edge of the paper to the trail edge of the image B Figure 1 These two measurements should be within 1mm Measure the distance from the left edge of the paper to the lett edge of the image and measure the distance from the right edge of tho paper to the right edge of the image D Figure 1 These two measurements should be within 1mm 7 if either measurement does not meet specification perform the adjustment below Repeat steps 2 through 7 for each paper tray 9 From the Test Print menu set duplex to on and print a duplex test print Check the adjust ment step 5 for the duplexed print NOTE When checking the measurement for a duplexed print in the scan direction you must exit diagnostics and run a duplexed System Controller Test Print Fold the test pat tern in left edge to right edge The target should be within 2mm of the fold line Adjustment 1 Enter Diagnostics and select NVM Config 2 Enter the NVM Password 0734 3
215. ge between pins 3 and 4 on the discon nected plug The voltage is 5 0VDC YN On the LVPS check the voltage between P J PN1 pins 1 and 2 The voltage is 24 0VDC YN Replace the LVPS REP 9 5 Replace the System Controller 5 0VDC Power Supply REP 9 4 Replace the System Controller PWB REP 9 2 Switch the printer power off Reconnect P J18 to the System Controller PWB Switch the printer power on Check the voltages between the pins listed in Table 1 and frame ground All the voltages listed in the column with P J18 connected are correct YN Replace the Control Panel Assembly PL 1 1 Switch the printer power off Reinstall the removed options one at a time switching on the power and checking the voltages between the pins listed in Table 1 and frame ground after each component is installed Replace the option just installed if the voltage falls After all the options are reinstalled the LCD display is still erratic YN Problem solved Return to Initial Actions and restart Replace the Control Panel Assembly PL 1 1 If the problem persists replace the System Controller PWB REP 92 Switch the printer power off Reconnect P J18 to the System Controller PWB Switch the printer power on Check the voltages between the pins listed in Table 1 and frame ground All the voltages listed in the column with P J18 connected are correct YN Replace the Control Panel Assembly PL 1 1 Switch the printer po
216. gh 33V Low OV Signal Levels High 24V Low 0V FEEDZ Feed contro signal ar the Feeder 2 The Feed Cluich Assembly and the Turn Clutch Assembly are activated when this signal goes Low Signal Levels High 33V 0V INO FAP ignal rom the No Paper 3 Sensor equipped on the Option Feeder 3 This signal is Low when the No Paper 3 Sensor is activated Signal Levels High 33V Low 0V ING PAPE Signal from the No Paper 2 Sensor equipped on the Option Feeder 2 This signal is Low when the No Paper 3 Sensor is activated Signal Levels High 33V 0V COW PAP Signal from the Low Paper Sensor 3 equipped on the Option Feeder 3 This signal is Low when the Low Paper Sensor 3 is activated Signal Levels High 33V Low 0V LOWPAP2 Signal from the Low Paper Sensor 2 equipped on the Option Feeder 2 This signal is Low when the Low Paper Sensor 2 is activated Signal Levels High 33V Low 0V Feeder PWB lt gt Low Paper Sensor Stack Height Sensor Feed Clutch Assembly Turn Clutch Assembly and Motor Assembly Table 3 The following table shows the signal names for the Feeder PWB lt gt Low Paper Sensor Stack Height Sensor Feed Clutch Assembly Turn Clutch Assembly and Motor Assembly path Table 3 Signal Names Signal Name Descrplon COW PAP TTT Signal rom the Low Paper Sensor This signalis Low when the Low Paper Sensor is activated Signal Levels High 33V Low OV Initial Issue 272000 Wiring Data DocuPrint N2125 723 550
217. gistration Rolls i Drum BTR i Fuser Assembly Figure 1 The Envelope Feeder Paper Path Face Up Exit Assembly H Y Duplex Assy Output Tray 6050 Initial Issue pum DocuPrint N2125 General Procedures Information GP 3 10 GP 3 11 Figure 2 shows a cut off view of the printer to better illustrate the components involved in the Envelope paper path Pri Gare Drive Flow As shown in Figure 3 the mechanical power generated by the Main Motor Assembly is trans mitted to the gears of the Envelope Feeder Gear 29 MBF Gear 14 Drive Gear 21 Motor Assy Ide Gear 21 og Fat One Way cuten Assy 268 Car Be Feed 2 Roll Assy rare Ma Rat Ase Ideal Gear 21 Ore Wey Clutch per Pressure Rol Fes Rates One Way Ch Assy 26 Elec Clutch 29 onom na Ay Sum cen assy pi Detack Saw Pick Up Gear Drive Gear Assy Figure 2 The Envelope Paper Path Figure 3 Drive Flow Function of Major Components Figure 4 shows the major components of the Envelope Feeder Clutch 29 Controls the transmission of the drive power by the actuation of the clutch function Clutch Assembly One way Torque 25 26 26A and 268 Prevents the clockwise rotation Feed 1 Roll Assembly Transfers the envelope by its counterclockwise rotation Feed 2 Roll Assembly and Roll Assembly Bottom General Procedures Inform
218. he 550 Sheet Feeder Figure 1 4 Pull the top of the cover out and down to remove the cover Figure 1 C es 4207 3 Figure 1 Left Cover Replacement 1 Reinstall the components in the reverse order REP 11 4 550 Sheet Feeder Gear Bracket Assembly Parts List on PL 11 2 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the printer from the 550 Sheet Feeder REP 11 1 2 Remove the Tray trom the Feeder 3 Remove the five screws that secure the 550 Sheet Feeder Gear Bracket Assembly to the 550 Sheet Feeder Figure 1 4 Remove the Gear Bracket Assembly 2128 4198 Figure 1 Gear Bracket Assembly Replacement 1 Reinstall the components in the reverse order Repair Adjustment REP 11 3 REP 11 4 Initial Issue DocuPrint N2125 02 2000 4 80 REP 11 5 Top Plate Parts List on PL 11 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove the printer from the 550 Sheet Feeder REP 11 1 Remove the Tray from the Feeder Remove the 550 Sheet Feeder Right Cover REP 11 2 Remove the 550 Sheet Feeder Loft Cover REP 11 3 Remove 550 Sheet Feeder Gear Bracket Assembly REP 11 4 Remove the screw that secures the Top Plate to the Feeder Figure 1 Lift and remove the Top Plato from the Feeder Figure 1 REP 11 6 550 Sheet Feeder Drive Assembly Parts List on PL 11 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove the printer trom t
219. he 550 Sheet Feeder REP 11 1 Remove the Tray from the Feeder Remove the 550 Sheet Feeder Right Cover REP 11 2 Remove the 550 Sheet Feeder Left Cover REP 11 3 Remove 550 Sheet Feeder Gear Bracket Assembly REP 11 4 Remove the Top Plate REP 11 5 Remove the six screws that secure the 550 Sheet Feeder Drive Assembly to tho 550 Sheet Feeder Figure 1 8 Remove the Feeder Drive Assembly Figure 1 2025 4208 f J 2125 Figure 1 Feeder Drive Assembly Figure 1 Top Plate Replacement Replacement 1 Reinstall the components in the reverse order 1 Reinstall the components in the reverse order Initial Issue pum Repair Adjustment DocuPrint N2125 481 REP 11 5 REP 11 6 REP 11 7 No Paper Actuator Parts List PL 11 2 Removal WARNING Switch off the power and disconnect the Power Cord REP 11 8 Turn Roll Assembly Parts List on PL 11 2 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the printer from the 550 Sheet Feeder REP 11 1 1 Remove the printer from the 550 Sheet Feeder REP 11 1 2 Remove the Tray from the Feeder 2 Remove the Tay from the Feeder Remove the 550 Sheet Feeder Right Cover REP 11 2 3 Remove the 550 Sheet Feeder Right Cover REP 11 2 4 Remove the 550 Sheet Feeder Left Cover REP 11 3 4 Remove the 550 Sheet Feeder Left Cover REP 11 3 5 Remove 550 Sheet Gear Bracket Assembly REP 11 4 5 Remove 550 Sheet Feeder Gear Br
220. he Feeder and remove Figure 2 9 Disconnect P J52 from the Size Option PWB and remove the Harness Assembly Figure 3 2125 4200 Figure 1 Removing Harness Assembly Repair Adjustment REP 11 15 REP 11 16 02 2000 488 Initial Issue DocuPrint N2125 2025 4201 Figure 2 Disconnecting Boss REP 11 17 Size Sensor Housing Assembly Parts List on PL 9 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove the printer trom the 550 Sheet Feeder REP 11 1 Remove the Tray from the Feeder Remove the 550 Sheet Feeder Left Cover REP 11 3 Remove the two screws that secure the 550 Sheet Feeder Size Harness Assembly into the hole in the 550 Sheet Feeder and remove from the wiring harness Figure 1 5 Using a small screwdriver push the boss that secures the Size Sensor Housing from the 550 Sheet Feeder and remove Figure 1 E S eR 2025 4208 Figure 1 Size Sensor Housing Assembly Figure 3 Size Sensor Harness Assembly Replacement Replacement 1 Reinstall the components in the reverse order 1 Reinstall the components in the reverse order Initial Issue 0212000 Repair Adjustment DocuPrint N2125 489 REP 11 16 REP 11 17 REP 11 18 Size Sensor Actuators Parts List on PL 11 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the printer from the 550 Sheet Feeder REP 11 1 2 Remove any lower feeders if installed 3 R
221. he System Controller PWB If the problems persist replace the Sys tem Controller PWB REP 8 2 Load fresh dry paper Run a test print The problem is still present YN Problem solved Install a new Print Cartridge The problem is still present Image Quality Repair Analysis Procedures IQ RAP 3 IQ RAP 4 02 2000 344 Initial Issue DocuPrint N2125 YN Problem solved Inspect the BTR Assembly for contamination and wear The BTR is free of contamir and wear YON Replace the BTR Assembly REP 7 1 Generate a test print and switch OFF the printer power halfway through the print cycle Care fully remove the Print Cartridge and inspect the toner image on the drum just before the trans fer area BTR The image on the drum is completely developed with sharp black easily read areas and no horizontal deletions YON Go to RAP 43 Inspect the toner image on the drum immediately after the transfer area BTR The image on the drum was transferred to the paper YON Go to RAP 43 toner WARNING If the printer has been switched on the Fuser will be hot Warning the Fuser may be hot Open the Rear Cover and remove the Fuser Assembly Rotate the fuser idler gear manually and inspect the Heat Roll Open the fuser jam access cover Rotate the fuser idler gear manually and inspect the Pressure Rol The Heat Roll and the Pressure Roll are free of scratches and contamination YN Replace the Fuser Assembly R
222. he rear of the printer watch the Tray 1 bottom plate The Bottom Plate is raised fully and evenly YN Go to RAP 37 Remove Tray 1 Manually actuate the Tray 1 No Paper sensor The No Paper Actuator moves smoothly YN Replace the Tray 1 No Paper Actuator REP 3 3 Enter diagnostics and select Component Test Scroll to Sensor Input test and press Enter Manually actuate the Tray 1 No Paper Sensor The number on the LCD increments each time you press and release the actuator YN Go to RAP 34 Replace the Print Engine Controller PWB REP 9 3 Check the paper level in Tray 2 3 There is paper in the Tray YN Load paper into Tray 2 3 Enter diagnostics and select Test Print Run a test print from Tray 2 3 The CS error code reappears Return to Initial Actions and restart Remove Tray 2 3 from the printer Remove all paper from the tray Reinsert the Tray into the printer From the rear of the printer watch the tray bottom plate The Bottom Plate is raised fully and evenly Go to RAP 37 Remove Tray 2 3 Manually actuate the No Paper Sensor The No Paper Actuator moves smoothly YON Replace the Tray 2 3 No Paper Actuator REP 11 7 A Enter diagnostics and select Component Test Scroll to Sensor Input test and press Enter Manual actuate the 2 No Paper Sensor The number on the LCD Increments each deve you preas ond release ong of the actuators oN Replace in order the Feeder PWB REP 11
223. illustration when an assembly or kit is spared but is not shown The item number of the assembly or kit precedes the bracket the item numbers of the piece parts follow it Part Number Index This index lists all the spared parts in the system in numerical order Each number is followed by a reference to the parts list which the part may be found Other Information Abbreviations Abbreviations which may be used in the parts lists text or illustrations are as follows us United States Parts Distribution System European Parts Distribution System South America Parts Distribution System XGL Canada Parts Distribution System PIJ Plugidack PIO Part of Wih WOO Without Tao A Tag is used when a part or area of the system has been modified The Change Tag Index which is found in the General Procedures information Section lists the name and purpose of the Tag In some cases you will go to the parts lists and find a part number listed as with Tag Go to the Change Tag Index for a description of what the Tag is and what you need to install the Tag The Change Tag Index will either list a kit number or indicate piece par If piece part is indicated the parts lists reference s will be given and all parts associated with the Tag will have to be individually located ordered and installed The notation P O Tag after a part number indicates that the item is part of a Tag The n
224. ine Controller PWB REP 9 3 or System Controller PWB REP 9 2 If misregistration occurs across the process direction replace in sequence as necessary Laser REP 7 4 System Controller PWB REP 9 2 Have the customer send another print job The print image YN Have the customer contact the Xerox Customer Support properly registered Prablem Solved Image Quality Repair Analysis Procedures 0212000 Initial Issue IQ RAP 14 IQ RAP 15 324 DocuPrint N2125 IQ RAP 16 Skips Smears disturbance of the image which lengthens or shortens the image in the process direction A darkening across the process direction or a repeat ofthe image in the process direction Figure 1 XEROX Figure 1 Skips Smears Initial Actions Check that the paper supply is dry and fresh Check to ensure that the paper is within specification Check the paper path for any obstructions or debris Procedure Run a test print The image has skips or smears YN Problem Solved Check clean or replace as necessary in the following sequence Transport Chute Assembly REP 6 1 The Main Drive Gear components REP 8 2 The Fuser Assembly REP 6 2 The defect still occurs Problem Solved Replace the Print Cartridge PL 8 1 IQ RAP 17 Unfused Image The printed image is not fully fused to the paper The image rubs off easily Figure 1 2125 2227 Figure 1 Unfused Image Initial Actions Check to
225. inter power on On the Print Engine Controller PWB check the voltage between P J34 pin 11 and frame ground The voltage is 1 2VDC YN Replace the Print Engine Controller PWB REP 9 3 Check the wiring harnesses If the harnesses are in good condition replace the Duplex PWB REP 12 4 Replace the Face Up Tray Sensor REP 12 14 Switch the printer power off Remove the Lett Interface Cover REP 1 1 Left Cover REP 1 2 and the Lett Plate Assembly REP 1 11 Switch the printer power on On the Print Engine Controller PWB check the voltage between P J34 pin 11 and frame ground The voltage is 0 0VDC with the sensor unblocked and 3 3VDC with the sensor blocked Check the wiring harnesses If the harnesses are in good condition replace the Duplex PWB REP 124 Replace the Print Engine Controller PWB REP Replace the Print Engine Controller PWB REP 9 3 Initial Issue DocuPrint N2125 02 2000 243 Status Indicator Repair Analysis Procedures RAP 50 RAP 51 Status Indicator Repair Analysis Procedures 02 2000 Initial Issue RAP 50 RAP 51 244 DocuPrint N2125 RAP 52 Low Paper Tray 2 or Tray 3 550 Sheet Feeder Tray 2 andlor Tray 3 have low paper Procedure Fill the affected paper tray with fresh paper The Error Code is still displayed Problem solved Remove the paper tray from affected Feeder Assembly Manually push up and release the low paper actuator The low pap
226. inter contains an emulation of the Hewlett Packard PCL 5e or PCL 6 command language recognizes HP PCL 5e or HP PCL 6 commands and processes these commands in a manner compatible with Hewlett Packard LaserJet printer products XL is a trademark of Xiontics Warning This equipment complies with the requirements in Part 15 of FCC rules for a class A computing device Operation of the equipment in a residential area may cause unacceptable interference to radio and TV reception requiring the operator to take whatever steps are necessary to correct the interference Tnitial Issue 02 2000 Copyright DocuPrint 2125 Electrostatic Discharge This caution indicates that there are components which are sensitive to damage caused by electrostatic discharge CAUTION These components are susceptible to electrostatic discharge Observe all ESD procedures to avoid damage Shock Hazard This symbol indicates the presence of potentially hazardous voltages FM 001 Fuser Hazard This symbol indicates the presence of extreme heat from the Fuser Assembly Class 1 LASER Product The DocuPrint N2125 laser printer is certified to comply with Laser Product Performance Standards set by the U S Department of Health and Human Services as a Class 1 Laser Product This means that this is a class of laser product that does not emit hazardous laser radiation this is possible only because the laser beam is totally enclo
227. ints A totally black output print There is toner on the paper with no visible image N2125 320 Figure 1 Black Prints Actions Inspect the printer paper path for items such as staples paper clips and paper scraps Check installation of the Print Cartridge Check that the Print Cartridge ground contact points are clean Ensure the machine covers are in place and fit well so no outside light can enter the machine Procedure Install a new Print Cartridge Run a Test Print The print is normal YN Shield half of the window of the Laser Assembly Run a Test Print The print is half white and half black YN Goto RAP 44 Goto RAP 30 Problem solved Image Quality Repair Analysis Procedures 0212000 Initial Issue IQ RAP 9 IQ RAP 10 3 20 DocuPrint N2125 IQ RAP 11 Background There is toner contamination on all or part of the page The contamination appears as a very light gray dusting Figure 1 28 3221 Figure 1 Background Initial Actions Inspect the printer paper path for items such as staples paper clips and paper scraps Check installation of the Print Cartridge Check that the Print Cartridge ground contact points are clean Ensure the machine covers are in place and fit well so outside light can enter the machine Procedure Install new Print Cartridge PL 8 1 Run a Test Print The background is gone YN Generate Test Print and switch OFF the printer power halfw
228. ion Cassette Assembly with 2 27 P OPL2 1 Item 1 Retard Cap Retard Chute Base Left Retard Chute Retard Chute Base Right Retard Shaft Assembly Friction Clutch Assembly Roll Assembly Kit Retard Bracket Retard Spring Tongue Plate 1 with 2 27 12 Tongue Shaft Assembly 13 Lift Up Shaft Holder 14 Bearing 15 Lift Up Ground Spring 16 Cassette Housing 17 Lever 18 Cassette Handle Assembly 19 Motor Spring 20 Right Holder 21 Left Holder 22 127K24682 Motor Assembly 23 Bearing 24 Motor Holder Assembly 25 114E11680 Connector 26 Spring 27 Socket Guide S 600K79660 Hardware Kit Includes Screw 5005 Initial Issue 022000 Parts list DocuPrint N2125 58 PL2 2 PL 3 1 Paper Feeder tem Part Description 1 22K5151 Roll Assembly with 2 2 12120151 Clutch Assembly 3 Extension Spring with 1 40 a 4 B09E11690 Chute Spring 5 Feed CST Cover 6 120E16960 Paper Actuator 7 830E18131 Support Actuator f Feeder Frame Assembly 9 Clamp 10 Left Latch Spring n Low Paper Actuator P O item 42 12 Low Paper Actuator Support PIO item 42 1 130E81970 Low Paper Sensor 14 16047211 No Paper Sensor Harness Assy 15 Front Chute Assembly 16 Chute 17 Rol 7 n Feeder Cover 19 600K79920 Feed Head Assembly with 20 28 20 Feed Shaft PO item 19 21 Bearing P O tem 19 22 Nudger Support Assembly P O item 19 23 190E81970
229. istration Sensor REP 54 Replace the Connector PWB REP 9 7 Replace the Print Engine Controller PWB REP It appears that the Registration Sensor is working correctly If a problem persists replace the Print Engine Controller PWB REP 9 9 Initial Issue DocuPrint N2125 02 2000 Analysis Procedures RAP 31 RAP 32 RAP 33 MBF No Paper Sensor Procedure Enter Diagnostics and select Component Test Scroll to Sensor Input test and press Enter Actuate and deactuate the MBF No Paper Sensor The number on the LCD increments each time you press and release the actuator YN The actuator moves freely and YN Replace the MBF No Paper Sensor Actuator REP 4 5 good condition not broken or damaged Switch the printer power off Remove the Lett Interface Cover REP 1 1 Left Cover REP 12 and the Left Plate Assembly REP 1 11 Switch the printer power on On the Print Engine Controller PWB measure the voltage between P J23 pin 14 and frame ground The voltage is 3 3VDC with the MBF No Paper Sensor deactuated and 0 0VDC with the Sensor actuated YN Switch the printer power off Remove the Left Front Cover REP 1 7 Switch the printer power on On the Connector PWB measure the voltage between P J45 pin 3 and frame ground The voltage is 43 3VDC with the MBF No Paper Sensor dea tuated and 0 0VDC with the Sensor actuated YN Check the voltage between P J45 pin 1 and frame ground The 12VDC YN
230. items such as staples paper clips and paper scraps Check installation of the Print Cartridge Check that the Print Cartridge ground contact points are clean Ensure there are no obstructions in the Laser path Procedure Load fresh dry paper Run a test print The image density meets specifications YON Install a new Print Cartridge Run a test print The image density meets specifications Y N Remove the Print Cartridge Inspect the Metal Grounding Contacts on the Print Car ridge Side Guide The Metal Grounding Contacts are intact and free of contam ination YN Reform or clean the Metal Grounding Contacts so they make better contact with the drum shaft or replace the Print Cartridge Side Guide REP 7 5 Check for the continuity between the Metal Grounding Contacts and the printer body continuity between the Metal Grounding Contacts and the Replace the Print Cartridge Side Guide REP 7 5 Inspect Laser beam path between the Laser Assembly and the Drum for obstruc tions The laser beam path is free of obstructions Initial Issue DocuPrint N2125 02 2000 21 Image Quality Repair Analysis Procedures Other Print Defects IQ RAP 1 1 RAP 2 Blank Prints Clean the Laser window and remove any obstructions from the laser beam path No visible image anywhere on the output print Figure 1 YN EP 7 Generate Test Print and switch OFF the printer power ha
231. l Actions Check the Bias Transfer BTR for contamination even spring pressure and proper instal lation The BTR is in good condition not contaminated and properly installed YN Ferat ormapio BTR Anny REP 71 Check the Fuser Assembly for worn parts and for contamination on the Fuser Roll or Pressure Roll The Fuser Assembly is in good condition Initial Issue DocuPrint N2125 02 2000 221 Image Quality Repair Analysis Procedures IQ RAP 11 IQ RAP 12 N Replace the Fuser Assembly REP 6 2 Panic stop the printer half way through the print cycle Look at the image on the drum The image on the drum has even density YN Pc te Lara REP 74 Lock atthe print on the paper before the Fuser The print on the paper has even density YN iem err Replace the Fuser Assembly REP 6 2 IQ RAP 13 Skewed Image The image is not parallel to the edges of the print sheet Figure 1 N2125_3323 Figure 1 Skewed Image Actions Check the paper tray s installation and the paper in the tray s Load fresh dry paper Paper meets specification Check the paper path for any obstructions or debris that might hamper the passage of the paper Ensure the Print Cartridge is properly installed Procedure Run 5 test prints single sided from each paper tray f the printer has a Duplex Assembly run five duplexed prints from each tray The skewed image appears
232. l a new Print Cartridge Run a test print The problem is still present YN Problem solved Inspect the toner image on the drum immediately after the transfer area BTR The toner image on the drum transferred to the paper YON tm BTR teris REP 7 WARNING It the printer has been switched on the Fuser will be hot Open the Rear Cover and remove the Fuser Assembly Rotate the fuser idler gear manually and inspect the Heat Roll Open the fuser jam access cover Rotate the fuser idler gear manu ally and inspect the Pressure Roll The Heat Roll and the Pressure Roll are free of scratches and contamination Image Quality Repair Analysis Procedures IQ 5 IQ RAP 6 02 2000 Initial Issue 346 DocuPrint N2125 N Replace the Fuser Assembly REP 6 2 Replace the following in order until the defective component is found BTR Assembly REP 7 1 Chute Transport Assembly REP 6 1 IQ RAP 7 Vertical Streaks Extraneous dark lines bands in the process direction in the direction of paper travel Figure D Lead Edge N2U25 3318 Figure 1 Vertical Streaks Actions Check that the paper supply is dry and fresh Inspect the printer paper path for items such as staples paper clips and paper scraps Check installation of the Print Cartridge Check that the Print Cartridge ground contact points are clean Check that the paper is within specifications Inspect the paper path between fe
233. lean and free of obstructions YN Clean of replace the Face Up Chute Assembly as necessary PL 1 2 Select Component Test Scroll to Exit Motor FWD and press Enter The Exit Motor rotates YN Go to RAP 49 The Exit Rollers and Pinch Rollers on the Rear Cover rot YN Replace the Exit Rollers or Gears as necessary PL 7 1 smoothly Check the Fuser Assembly for obstructions or contamination The Fuser is clean and free of obstructions YON Clean or replace the Fuser Assembly REP 6 2 as necessary Initial Issue DocuPrint N2125 249 02 2000 Status Indicator Repair Analysis Procedures RAP 10 RAP 11 hack the Transport Chute for contamination or obstructions The Transport Chute ts clean and fee of obstructions YN Clean of replace the Transport Chute as necessary REP 6 1 Replace the Print Engine Controller PWB REP RAP 12 Close Front Cvr Close Rear Cvr E5 The Front Cover Rear Cover Interlock Switch is open Procedure Open and close the Front Cover Inspect the movement of the Interlock Switch actuator tab on the Front Cover presses down on the Interlock Switch lever YN Replace the Front Cover Assembly PL 1 1 Open and close the Rear Cover Inspect the movement of the Interlock Switch The actuator tab on the Rear Cover presses down on the Interlock Switch lever YN Replace the Rear Cover Assembly PL 1 3 Enter diagnostics and select Component Test Soroll t
234. lftone patches cannot IO RAP be reproduced clearly on the print Image Quality Repair Analysis Procedures Image Quality Defect Definitions 02 2000 34 In DocuPrint N2125 Image Quality Checkout The System Controller Test Print is used to evaluate and ensure that the printed image meets the printer specifications Use new paper whenever possible to check the image quality of prints Make five 5 prints of the System Controller Test Print Figure 1 Discard the first two prints and retain the remaining a prints tor image quality analysis The Image quality Checkout is used to evaluate the following 1 Besoin places Figure 1 2 Skips and Smears A laces Figure 1 a Registration 1 placo Figure 1 Resolution and Unirmiy 2 places Figure 1 5 Sold Area Density 5 places Figure 1 Set 8 Hal Tone Resolution 2 places Figure 1 iri Goto Sold Area Dens ET Figure 1 System Controller Test Print niil issue pum image Quality Repair Analysis Procedures DocuPrint N2125 35 Image Quality Checkout Solid Area Density Procedure Ensure the printer is set for 600 dpi Compare the solid areas on the System Controller Test Patterns with the Output Reference document 82P520 Figure 1 The solid areas on the print are at the 1 20 density square on the scale or higher and all the solid areas on any print differ in density less than one density squat YN The solid area den
235. lfway through the print cycle Carefully remove the Print Cartridge and inspect the toner image on the drum just before the transfer area BTR The image on the drum is completely devel oped with sharp black easily read areas YN Go to RAP 43 Inspect the toner image on the drum immediately after the transfer area BTR The toner image on the drum is transferred completely to the paper YN Go to RAP 43 N2125 3312 Replace in order unti the problem is solved BTR Assembly REP 7 1 Fuser Assembly REP 6 2 PWB REP 9 6 Laser Assembly REP 7 4 VPS Assembly REP 9 5 Print Cartridge Side Guide REP 7 5 Print Engine Controle Figure 1 Blank Prints PWB REP 9 3 Chute Transport Assembly REP 6 1 Initial Actions Go to RAP 23 Inspect the printer paper path for items such as staples paper clips and paper scraps Check installation of the Print Cartridge Check that the Print Cartridge ground contact points are clean Ensure there are no obstructions in the Laser path Ensure the blank prints are not the result of multisheet feeds Procedure Enter Diagnostics and select Test Print Scroll to Print Pattern and press Enter 4 Run five test prints The test prints are blank Problem Solved YON Exit diagnostics and enter the Menu Mode Print a Config Sheet The prints are blank YN The problem appears to be with the host computer or the cables If the problems per
236. lly rotate the rotor of motor clockwise The rotor of Main Motor rotates smoothly YN Remove the Fuser Assembly REP 6 2 Manually rotate the rotor of the Motor clock wise The rotor of the Main Motor rotates smoothly YN Remove the Main Motor REP 8 1 Manually rotate the rotor of the Motor clack wise The rotor of Main Motor rotates smoothly YN Replace the Main Motor REP 8 1 Replace the Main Drive Gear Assembly REP 8 2 Replace the Fuser Assembly REP 6 2 Replace the Print Cartridge PL 8 1 Open the Front Cover and remove the Print Cartridge Rotate the Metal Registration Roll man ually The Metal and Rubber Registration Rolls rotate smoothly YON Replace the Registration Rolls REP 5 6 or clutch REP 5 5 as necessary With the Front Cover open cheat the Front Cover Interlock Enter diagnostics and select Com ponent Test Run the Main Motor Operation Visually inspect the Main Motor and Main Drive Gears The Main Motor and drive gears run smoothly and all drive gears are in good Goto REP 8 1 With the Main Motor stil running select MBF Feed Solenoid The MBF Feed Roll Assembly rotates smoothly YN Replace the MBF Feed Roll components as necessary REP 4 2 REP 4 3 Scroll to Turn Roll Clutch and press Enter All Turn Roll Shafts rotate smoothly YN Repair or replace the appropriate Turn Roll Assembly REP 3 2 REP 11 8 Scroll to Reg Roll Clutch and press Enter The Registration Roll rotate smoothly YN R
237. lose Bias Spring located under the Feeder Assembly 12 Slide the Feeder Assembly to the right and remove Figure 2 Figure 1 E Ring amp Bearing Figure 2 Feeder Assembly Replacement Reinstall the components in the reverse order 41 Repair Adjustment REP 11 12 02 2000 4 86 il Issue DocuPrint N2125 REP 11 13 Stack Height Sensor Parts List on PL 3 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove the printer from the 550 Sheet Feeder REP 11 1 Remove the Tray from the Feeder Remove the 550 Sheet Feeder Right Cover REP 11 2 Remove the 550 Sheet Feeder Loft Cover REP 11 3 Remove 550 Sheet Feeder Gear Bracket Assembly REP 11 4 Remove the Top Plate REP 11 5 Remove the 550 Sheet Feeder Drive Assembly REP 11 6 Disconnect P J682 from the Stack Height Sensor Figure 1 Release the five hooks and remove the Sensor Figure 1 2025 4098 Figure 1 Stack Helght Sensor Replacement 1 Reinstall the components in the reverse order REP 11 14 Low Paper Sensor Parts List on PL 11 2 Removal WARNING Switch off the power and disconnect the Power Cord Remove the printer trom the 550 Sheet Feeder REP 11 1 Remove the Tray from the Feeder Remove the 550 Sheet Feeder Right Cover REP 11 2 Remove the 550 Sheet Feeder Left Cover REP 11 3 Remove 550 Sheet Gear Bracket Assembly REP 11 4 Remove the Top Plate REP 11 5 Remove the 550 Sheet Feeder Drive Assembly
238. ly REP 1 4 10 Remove the Right Cover REP 1 5 11 Remove the LVPS PWB REP 9 5 32 Remove the Paper Feeder REP 3 1 13 Rotate the No Paper Actuator up until the left end of the actuator can be removed from the support Figure 1 Remove the actuator Figure 1 No Paper Actuator Replacement 1 Reinstall the components in the reverse order Repair Adjustment REP 3 3 0212000 Initial Issue 420 DocuPrint N2125 REP 3 4 Stack Height Sensor Parts List on PL 3 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left Interface Cover Assembly REP 1 1 3 Remove the Left Cover REP 1 2 4 Remove the Front Cover Assembly REP 1 6 5 Remove the Left Front Cover REP 1 7 6 Remove the Left Plate Assembly REP 1 11 7 Remove the Plate Handle REP 1 12 Open Rear Door 9 Remove the Top Cover Assembly REP 1 4 10 Remove the Right Cover REP 1 5 11 Remove the LVPS PWB REP 9 5 12 Remove the Paper Feeder REP 3 1 1 Remove the No Paper Actuator REP 3 3 14 Disconnect P J862 from the Stack Height Sensor Figure 1 15 Release the five hooks and remove the Sensor Figure 1 Figure 1 Stack Height Sensor Replacement 1 Reinstall the components in the reverse order REP 3 5 Low Paper Sensor Parts List on PL 3 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left Interface Cover Assembly R
239. mbly Turn Clutch Assembly and Motor Assembly Table 3 Location of P J Connectors Use the P J Table Table 1 and the P J Map Figure 1 to locate a specific P J connector within the Feeder and Cassette To find the location of a Pid 1 Locate the P J connector number in the first column of the table Pin Number Signal Name Out 2 Locate the corresponding coordinates in the second column such as I7 or J7 T 33 F 3 Goto the map 2 GND P 4 Cross reference the letter and number of the P J coordinates with the letters and numbers TACK on the map 4 EU 5 The PU connector is located within the area where the coordinates cross 5 DAT OUT or g DAN 7 ETE ur g RESET Our Wiring Data 272000 Initial Issue Base Engine 550 Sheet Paper Feeder 720 DocuPrint N2125 PIJ Table Table 1 550 Sheet Paper Feeder Pid Table ARTES LEO ro 68 Connector Coordinate Description s 4 the Size 550 Sheet Harness Assembly tothe Size 550 Sheet PW PUSS 5 Connects the Harness Assembly tothe Size 550 Shot Feeder E Pwe PUsz FS Connects the Size Option PWB To the Feeder PW B5 the Tum Clutch Harness Assembly ins Feeder PWB Pues B5 Connects the Feed Clutch Harness Assembly to the Feeder PWE E CC The NISNSR Harness Assembly to the Feeder PWB 3 3 e 2
240. mination Clean as necessary Check the MBF Feed Rolls Clean or replace if necessary Check the MBF Retard Pad Clean or replace if necessary Check the MBF Guide Check for obstructions or contamination Clean or replace as necessary Check the Registration Sensor Check actuation and for obstructions or con tamination Clean or replace as necessary Check the Registration Sensor Check actuation and for obstructions or contamina tion Clean or replace as necessary Check the Registration Rolls Clean or replace if necessary Check the BTR Roll and bearings Clean or replace if necessary Check the Print Cartridge Replace if necessary Check the Chute Transport Assembly Check for obstructions or contamination Clean or replace as necessary Check the Fuser Assembly Check for worn parts or Check for obstructions or con tamination Clean or replace as necessary Check all rolls and drives in the Exit Assembly Check for obstructions or contamination Clean or replace as necessary Check the Duplex assembly Check for worn parts or rolls Check for obstructions or con tamination Clean or replace as necessary Check the chute between the Duplex Assembly and the Registration Rolls Check for worn paris or rolls Check for obstructions or contamination Clean or replace as neces sary IQ RAP 14 Damaged Print The printed page comes out of the printer either wrinkled creased or torn Figure 1
241. mum DE nive Gummed Postcard note 3 TOS x TST XE BY Postcard Japanese Official Post Card paper The table shows available paper sizes Table 5 Cardstock 76 2 x 177mm 210x 297mm 3 3 5 Oxford index card 40801 be 825x107 Table 5 Duplex Assembly A4 or 215 9 x 279 4mm Letter Classic Crest Super Smooth ps ISize mm x mm gsx i Cover Long Grain Lotter SEF PSS 275 4285 KITT Legal 13 2158 x 8302 85 x IS Legal i4 i59 x3556 ES x 14 Executive SEF 1842 x 2687 725 x 105 SEF 3100 x 2970 825 x TTT 85 UIS SEF 182 0 x2570 7 x 107 Custom Width 182 0 215 9 7 85 Length 257 0 355 6 10 14 NOTE Supported paper weight is 60gsm 16 105gsm 281b Custom size paper longer than JIS B5 is available only when Custom Size is selected General Procedures Information 0212000 Initial Issue GP 1 5 68 DocuPrint N2125 Paper Size and Feeder Tray Output Tray Compatibility Table 7 Table 7 Paper Size and Feeder Tray utput Tray Compatibility Paper sizes shown in the following table can be identified by the controller to improve process UNE bunc ing Otherwise media wil be processed as the maximum custom size E
242. n not broken and move freely as the paper tray end guide is moved YN Replace the paper tray PL 2 1 PL 11 1 Reinstall the paper tray Enter Diagnostics and select Component Test Scroll to Paper Tray Size Reading and press Enter to display MBF size Press Enter repeatedly to scroll through each of the paper trays The paper size displayed on the LCD matches the size of the paper actually loaded Replace the Tray Size PWB REP 3 19 REP 11 19 Replace the Print Engine Controller PWB REP Table 1 Paper Size Actuators Actuator Cam B5 AS iy ji A4 Extended ser ser SEF SEF Top Made x x Esto x Forward Cam x RAP 23 Low Toner Sensor Failure Low Toner is not displayed when the Print Cartridge appears to be emply Procedure Run a Test Print Inspect the print quality The print is light YN Return to Initial Actions Replace the Print Cartridge PL 8 1 Run 5 test prints Config Sheet or Demo Page and inspect the print quality The print quality meets specifications YN Goto IQ RAP 1 Open the Front Cover and cheat the Front Cover Interlock Enter Diagnostics and select Com ponent Test Scroll to Sensor Input and press Enter 4 Hold the Print Cartridge in position while you carefully push down then release the Toner Sensor The number on the LCD incre ments each time you pull down and release the Toner Sensor YN Swit
243. n Clutch that is located on the end of the Rubber Registration Roll Registration Clutch Main Motor Assembly FRONT f gal LES Drive Gear Assembly 6017 transmission to the Rubber Registration Roll Initial Issue DocuPrint N2125 02 2000 6 31 GP 3 3 General Procedures Information Drive transmission to the Drum and the BTR The Main Motor Assembly transmits drive through the Drive Gear Assembly to the Drum drive gear that is located on the end of the Drum The Drum Gear drives the BTR Gear that is located on the end of the BTR Assembly Figure 6 Drum Gear Print Cartridge 6018 Figure 6 Drive transmission to the Drum and BTR Drive transmission to the Fuser Assembly As shown in Figure 7 the mechanical energy created by the Main Motor Assembly is transmit ted through the Drive Gear Assembly to the Idler Gear of the Fuser Assembly The Idler Gear transmits energy to the Heat Roll Gear located on the Heat Roll Fuser Gear Idler Gear D FRONT Main Motor Assembly Fuser Assembly Drive Gear Assembly e019 Figure 7 Dri transmission to the Fuser Assembly General Procedures Information GP 3 3 02 2000 632 Drive transmission to the Exit Components As shown in Figure 8 the mechanical energy created by the Exit Motor Assembly provides drive to the gears located on the Roll Assembly GP 3 4 Print Engine Controller and Control Panel Functions Th
244. n P J281 pin 7 and frame ground The volt age is 5 0VDC YN Switch the printer power off and reconnect PN1 Go to RAP 28 Replace the Print Engine Controller PWB REP 9 3 The problem still appears YN Problem solved Go to RAP 44 The printer RESETS while generating test print YN Replace the Print Engine Controller PWB REP The problem still appears YN Problem solved Notify customer the cause of the trouble seems to be a communication problem between the host computer and the printer The customer should contact Customer Support YN Replace the System Controller PWB REP 9 2 Goto RAP 28 Disconnect PL412 from the Control Panel Measure continuity on all wires between P J412 and P J18 All checks are good YN Replace the wiring harness PL 1 1 Replace the Control Panel Assembly PL 1 1 Keypad numbers 1 7 increment the counter Keypad number 4 enters the test and 0 exits the test YN Replace the Control Panel Assembly PL 1 1 Replace the System Controller PWB REP 92 Initial Issue 272000 Analysis Procedures DocuPrint N2125 229 RAP 26 RAP 27 RAP 28 Power Supply Procedure Switch the printer power of Disconnect the power cord Remove the Left interface Gover REP 1 1 Lott Cover REP 1 2 and the Left Plate Assembly REP 1 11 Disconnect the folowing the LVPS PA281 Print Engine Controller PWB REP 9 3 PA282 System Controller PWB REP 9 2 PU tFuserjREP
245. n the LVPS between P J281 pin 12 and ground you euch the printer power The voltage le Q OVDC during fuser warm then changes to 28V0C YON Replace the Print Engine Controler PWB REP 3 Replace the REP 9 5 RAP 32 Registration Sensor Procedure Enter Diagnostics and select Component Test Scroll to Sensor Input test and press Enter Actuate and deactuate the Registration Sensor The number on the LCD increments each time you press and release the actuator YN The actuator moves freely and i YN Replace the Registration Actuator REP 4 2 good condition not broken or damaged Switch the printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and the Lett Plate Assembly REP 1 11 Switch the printer power on On the Print Engine Controller PWB measure the voltage between P J23 pin 11 and frame ground The voltage is 3 3VDC with the Registration Sensor deactuated and 0 0VDC with the Registration Sensor actuated YN Switch the printer power off Remove the Left Front Cover REP 1 7 Switch the printer power on On the Connector PWB measure the voltage between P J43 pin 5 and frame ground The voltage is 3 3VDC with the Registration Sensor deactu ated and 0 0VDC with the Registration Sensor actuated YN Check the voltage between P J43 pin and frame ground The 12VDC YN Replace the Print Engine Controller PWB REP 9 3 voltage is Replace the Reg
246. nd 0 0VDC with the sensor actu N Switch the Printer power off and remove the Envelope Feedar Check for continuity between J418 Envelope Connector Assembly and P J23 Pin 3 the Print Engine Controller PWB There is continuity between the pins YN Remove the Front Cover REP 1 6 and the Front Left Cover REP 1 7 Check for continuity between P J41 Pin 5 on the Connector PWB and P J23 Pin 3 on the Print Engine Controller PWB There is continuity between the two pins YON Check the Connector Harness Assembly for proper connection and for defective wires Repair or replace if necessary If Hamess is in good con dition replace the Connector PWB REP 9 7 Replace the Envelope Connector Assembly REP 4 10 Replace the Envelope Feeder PWB REP 13 3 If the problem persists replace the Envelope Feeder No Paper Sensor REP 13 10 Replace the Print Engine Controller PWB REP Replace the Print Engine Controller PWB REP RAP 65 Load Envelope C5 Procedure Enter Diagnostics and select Component Test Scroll to Sensor Input Test and press Enter Press and release the Envelope Feeder No Paper Sensor Actuator The number on the LCD increments each time you press and release the Actuator YN Y Y Switch the Printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Switch the Printer power on On the Print Engine Controller PWB check
247. nd Signal Information This section of the manual contains Block Diagram for the 2125 Envelope Feader The Signal Pulse Block Diagram shows the interconnections of the major subsystems within the printer The remainder of this section divides tho Block Diagram into individual block diagrams to better ilustrate the electrical relationships between components and assemblies within the Envelope Feeder Each wire in the block diagram is tagged with a signal name and each wire is termi nated at both ends with a pin number Block Diagram 1 Envelope Feeder Block Diagram 2 Print Engine Controller PWB lt gt Connector PWB lt gt Envelope PWB Figure 3 Table 2 3 Envelope PWB lt gt Envelope Exit Sensor Assembly No Paper Sensor and Clutch Figure 4 Location of P J Connectors Use the P d Table Table 1 and the map Figure 1 to locate a specific PAI connector within the Feeder and Cassette To find the location of a P 1 Locate the Pid connector number in the first column of the table 2 Locate the corresponding coordinates in the second column such as I7 or J7 3 Goto the map 4 Gross reference the letter and number of the P J coordinates with the letters and numbers on the map 5 The PU connecter is located within the area where the coordinates cross Initial Issue 272000 Wiring Data DocuPrint N2125 733 Offset Catch Tray Envelope Feeder PIJ Table Table 1 Envelo
248. nd select NVM Contig password 0734 is possible to enter into the NVM Conti Goto RAP 31 Replace the Print Engine Controller PWB REP 9 3 Check the NVM Data one by one referring to the NVM Table Table 2 in section 6 The data is set properly YN The incorrect data is read only YN Set the data to the default value Replace the Print Engine Controller PWB REP 9 3 Goto RAP 44 Enter Diagnostics and select NVM Config password 0734 It is possible to enter into the NVM Cor YON Replace the Print Engine Controller PWB REP Check the NVM Data one by one referring to the NVM Table Table 2 in section 6 The data is set properly YN The incorrect data is read only YN Set the data to the default value Replace the Print Engine Controller PWB REP Goto RAP 44 Status Indicator Repair Analysis Procedures 022000 Initial Issue RAP 18 RAP 19 224 DocuPrint N2125 RAP 20 Fan Failure Power Off Now U5 The printer is detecting incorrect fan rotation Procedure Switch the printer power then on The Fan rotates when the m Switch the printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and Left Plate Assembly REP 1 11 Switch the printer power on On the LVPS check the voltage between P J283 pin 1 and frame ground The voltage is 19VDC YN Check the voltage between P J281 pin 13 and frame ground The 40 8VDC YN Replace the Print Engine Controller PWB REP 9 3
249. ng the Menu Up and Menu down keys Select a variable with Item Up or Item Down keys Use the Value Up or Value Down keys to scroll to the required value Lee Es UON fe enn QUI EET Up or Item Down keys Use the Value Up or Value Down keys to scroll to the requested value Use Enter key to load value in NVRAM Asterisk indicates factory default values This menu only appears if the Serial option is installed Keys Value Kays cai is Item Keys Value Keys Job Menu Password Menu Job Menu ort Enable 5300 sec Em ee M E System Menu Port Timeout o pipra Parallel Menu Port Timeout Au System Menu e Parallel PDL Paralel Menu Fe enu Serial Menu Serial PDL Postscript Ethernet Menu Binary PS 2 USB Menu Token Fing Novell Menu B Directional Print Menu Reset Menu Ethernet Menu Flow Control d Postscript XONXOFF Robust XON OFF Hardware Baud Rate Print Menu Reset Menu Binary PS certain options ae installed See Menu for details of each menu 17 Reset Menu viste in the menu list if the printer is powered in CANE AA 7 The Reset Menu is only visible in the k iy appear if certain options are installed See Menu for details of each menu a menu list if the printer is powered on em while pressing the Online and Enter toys
250. noid Figure 14 Table 11 Table 11 Signal Name Figure 14 Print Engine Controller PWB lt gt Connector PWB lt gt Paper Set Sensor Reg istration Sensor Registration Clutch Toner Sensor Pick Up Solenoi Print Engine Controller PWB lt gt Connector PWB lt gt Paper Set Sensor Registration Sensor Registration Clutch Toner Sensor Pick Up Solenoid Table 11 shows the signal names for the Print Engine Controller PWB lt gt Connector PWB path Table 11 Signal Name Signal Name Description antral signal which activates The Pick Up Solenoid Signal Levels High 3 3V Low 0V REG Signal from the Registration Sensor This signal is Low when the Regis tration Sensor is activated Signal Levels High 33V Low 0V REG CE antral signal which activates the Registration Cuich Signal Levels High 24 Low OV TONER Signal from the Toner Sensor This signal is Low when the Toner Sensor is activated Signal Levels High 33V Low 0V Signal Wom the Envelope Exit Sensor Assembly equipped on the Erve lope This signal is Low when the Envelope Exit Sensor Assembly is acti vated Signal Levels High 33V_Low OV Signal from the No Paper Sensor equipped on the Envelope This signal is Low when the No Paper Sensor is activated Signal Levels High 33V_Low 0V nor signal which activates The Cluich equipped
251. nt 02 2000 Initial issue REP 1 11 REP 1 12 442 DocuPrint N2125 REP 2 1 Retard Roll Assembly Parts List on PL 12 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Release the left and right latches of Tray 1 Figure 1 3 Open the Retard Chute Figure 1 4 Liftthe locking tab and remove the Retard Roll Assembly Figure 2 Figure 1 Retard Chute Figure 2 Roll Assembly Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 0212000 Repair Adjustment 443 REP 2 1 REP 2 2 Friction Clutch Assembly Parts List on PL 2 2 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Release the left and right latches of Tray 1 Figure 1 3 Open the Retard Chute Figure 1 4 Lit the locking tab and remove the Retard Roll Assembly Figure 2 5 Remove the Friction Clutch Assembly from the shaft Figure 3 Replacement 1 Reinstall the components in the reverse order Figure 1 Tray 1 Latches Figure 3 Friction Clutch Assembly Repair Adjustment 02 2000 REP 2 2 434 DocuPrint N2125 REP 2 3 Retard Spring Parts List on PL 2 2 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Release the left and right latches of Tay 1 Figure 1 3 Open the Retard Chute Figure 1 4 Release the two Locking T
252. nte P s Discharge Fusing Dr Paper e gt gt CES Y Greene he penip re Figure 1 Block Diagram of the Print Cycle Figure 1 illustrates the N2125 print cycle It shows the sequence of events for the xerographic process and the paper flow into and out of the printer Figure 2 is both a cut away side view of the N2125 printer that shows the location of individual components within the printer and a side view block diagram that shows the major compo nents that are directly related to the print cycle and to the paper path The pages following Figure 2 describe in detail each step of the print cycle Laser Beam Fuh 3 Development BCR Heat Rot Blade F Cleaning a Cleaning Blade Paper Rail danser sl usd do Pressure fol M a Roll Assy Rall Pinch Mid 2 Roll Assy Print Cartridge BCR Pinch Roll Mag Fol Cleaning Blade Drum Pinch Fol Metal Reg Poll Rubber Reg Mia t Roll Assy Heat Fol Hm T Pressure Roll Fuser Assy Turn Rol Assy Fee Rol Assy Retard Rot Dotack Saw Nudgor Rol Assy Figure 2 Side View Block Diagram of the Print Cycle Print Process Description 1 Charge Figure 3 The Bias Charge Roll BCR places a uniform negative electrostatic charge on the drum surface The drum surface is made of a photaconductive material that holds the electrical charge as long as the drum remains in darkness Light strikin
253. nu iden marked wiih 7 oniy appear i stain options are installed See Menu Maps for details of each menu USB Menu Ethernet Menu Token Ring Menu Novell Menu Print Menu Reset Menu 17 The Reset Menu is only visible in the menu list if the printer is powered on while pressing the 70 and 4 keys Password Menu Tho Password Menu is used to request printing of secure and proof jobs which require a our digit password matching that sent with the job to enable printing The user has the option of printing or deleting all or selected jobs associated with that password Job Menu Password Menu Enter Password Paa AAR x Tray Menu PCL Menu System Menu Parallel Menu m Serial Menu USB Menu eels Ethernet Menu Token Ring Menu Novell Menu Print Menu Reset Menu T Menus marked with only appear if certain options are installe See Menu Maps for details of each menu Pint The Reset Menu is only visible in the Delete menu list if the printer is powered oni E while pressing the Online and Enter e i Figure 1 Job Menu Print Menu Reset Menu sus Figure 2 Password Menu Initial Issue 022000 General Procedures Information DocuPrint N2125 647 GP 4 1 Job Menu Select the Job Menu using the Menu Up and Menu down keys Select a variable with Up Item Down keys Use tne Value Up or Value Down keys to scroll to the requirec Use Enter key to load value in NVRAM Asterisk indi
254. nu Reset Menu AppSocket PDL AppSocket Bin PS Talk Enable Sialic BOOT RARP HTTP Enable DHCP IP Address Res Port Timeout Source Routing 57300 sec 60 Single Al Single Speciic item Keys Select which digitis being changed Fiend marked wih only appear i certain options are installed See indicated by underline iMaps for details of each menu The Reset Menu is only visibla in the yyy oe ient Ist the pir powered on f BPO 2s fie pressing Qnis and En i 1 vasa Vue Kay ard oran soloed E Figure 10 Token Initial Issue 02 2000 General Procedures Information DocuPrint N2125 6 55 GP 4 1 Novell Menu Select the Novell Menu using the Menu Up and Menu down keys Select a variable with Item Up or Item Down keys Use the Value Up or Value Down keys to scroll to the requested value Use Enter key to load value in NVRAM Asterisk indicates factory default value item Keys Job Menu Password Menu Menu PCL Menu System Menu Parallel Menu Serial Menu Novell Enable Novell PDL Novell Binary PS PS Novell Mode Frame Type Polling Interval Pserver Name Primary Server NDS Tree NDS Context USB Menu Ethernet Menu Token Ring Menu Novell Menu Prin Menu Reset Menu All items below Novell Enable are not displayed if Novell Enable is set to OFF Penis marked with oni
255. o Sensor Input test and press Enter 4 Open and close the Rear Cover The number on the LCD increments each time you open and close the Rear Cover YN Switch the printer power off Remove the Lett Interface Cover REP 1 1 the Lett Cover REP 1 2 and the Left Plate Assembly REP 1 11 Disconnect P J30 from the Print Engine Controller PWB Measure the resistance between pins 1 and 2 on the discon nected plug as you open and close the Rear Cover There is continuity when the Rear Cover is closed and infinity when the Rear Cover is open YN Check the wiring between P J30 and the Rear Cover Interlock Switch Repair or replace the wiring or interlock switch REP 9 10 as required Replace the Print Engine Controller PWB REP Open and close the Front Cover The number on the LCD increments each time you open and close the Front Cover YN Switch the printer power off Remove the Left Interface Cover REP 1 1 the Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Disconnect P J284 from the LVPS PWB Measure the resistance between pins 1 and 2 on the disconnected plug as you open and close the Front Cover There is continuity when the Front Cover is closed and infinity when the Front Cover is open YN Check the wiring between P J284 and the Front Cover Interlock Switch Repair or replace the wiring or interlock switch REP 9 9 as required Connect P J284 to the LVPS Switch the printer power on On the Print Engine Contr
256. o to RAP 11 Status Indicator Repair Analysis Procedures nma Initial Issue Error Code Tables 26 DocuPrint N2125 Table 1 Error Code Table Genoralinfo Control Panel Message Fault History Entry Diagnostic Message Error Description Action Ec ELS ENTIER ustom Paper late of Exit Sensor Open Rear Cover Open Rear Cover within a specified time from Registra Clear Paper Path ion Sensor Change Paper Setting in Cus Mode to correct size Go to RAP 11 Gloss Front Cur ES FANT Rear Gover T Frontcowerinterlock is open Close Front Cover Close Rear 2 Rear cover interlock is open Close Rear Cover Go to RAP 12 ES Face Up Open Face Up Tray Ts open Glosa Face Up Tay Cheek Actuator Cheek Sensor Go to RAP 51 am n me Ofiset Jam EST EST OCT Jam T Papar late 6 OCT Sensor Open OCT Rear Door Open Rear Cover Clear Paper Path Open Printer Rear Cover Clear Paper Path Go to RAP 57 OCT Jam Orest Jam Esz ESZ OCT Jam Paper Tate off OCT Sensor Open OCT Rear Door Open Rear Cover Sensor on at Power On Clear Paper Path Go to RAP 57 Paper Jam E70 Duplex Jar Paper arrives at Registration Sensor Open Front Cover Open Front Cover early trom Duplex Sensor Clear Paper Path Go to RAP 58 Paper Jam ETT ET Duplex Jam Paper late o Duplex Sensor Open the Rear Cover Open Rear Cover Remove Duplex Unit Clear Paper Path Go
257. oblem com be entered once after entering diagnostics linues call for service OCT Unita ES Poweroff amp onifproblemco Procedure linues call for service ose 4 er down printer Optional Feeder Unit tal EN Power amp on if problem cor r 2 Simultaneously hold keys 2 and 6 down Sel pause Command Prnt reci ren Power up printer for message IOT to appear on the LCD 4 command Fuser Warning Fuser Unit Needs to be replaced Please Wait Replace fuser clear fuser warning Release both keys then press key 4 to enter the IOT Diagnostics menu message Enter ing IOT Diagnostics Mode appears If key 4 is not pressed within 5 seconds of the IOT message printer will go to the normal boot process 5 Press key 1 or 5 to scroll through the Main Menu Component Test and NVM Contig Test Print are the choices available 6 Press key 2 or 6 7 The message Enter Password will appear on the LCD 8 Press keys 073 4 in sequence 9 Press key 2 or 6 to scroll through the items menu Table 2 The value in the configuration NVM can be viewed and changed 10 Press key 3 or 7 to view the content of the selected item Item with an R next to itis a read only item 11 Press key 3 or 7 to change the NVM value to a different value Press key 4 to store the new value If key 4 is pressed a message Wrote value to NVM will appear for about 1 second on the LCD Gener
258. ock Switch Assembly Parts List on PL 10 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left interface Cover Assembly REP 1 1 Remove the Left Cover REP 1 2 Remove the Front Cover Assembly REP 1 6 Remove the Lett Front Cover REP 1 7 Remove the Lett Plate Assembly REP 1 11 Disconnect P J284 from the LVPS PWB REP 9 5 Release the switch harness from all cable clamps Remove the two screws that secure the Front Interlock Switch Assembly to the printer Figure 1 10 Remove the Front Interlock Switch Assembly Figure 1 wo Pw m Figure 1 Front Interlock Switch Assembly Replacement 1 Reinstall the components in the reverse order REP 9 10 Rear Interlock Switch Assembly Parts List on PL 10 1 Removal CAUTION These components are susceptible to electrostatic discharge Observe all ESD procedures to avoid damage WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left Interface Cover Assembly REP 1 1 Remove the Lett Cover REP 1 2 4 Remove the Front Cover Assembly REP 1 6 5 Remove the Left Front Cover REP 1 7 6 Remove the Top Cover Assembly REP 1 4 7 Open the Rear Cover Assembly 8 Remove the Interlock Cover REP 1 10 9 Remove the Lett Plate Assembly REP 1 11 10 Remove the Exit Chute Assembly REP 6 4 11 Disconnect P J30 from Print Engine Controller PWB 12 Release the Harness from all cable clamp
259. ocuPrint N2125 Introduction The following information is contained within this section General Procedures includes the Operations Menu Map and the Service Mode Menu Map It includes all unique service operations and the machine soft switch parameters and defaults When you suspect machine is functioning outside the range of its specifications refer to product specifications If the problem is a result of space electrical or environmental problems call for management or sales assistance as needed Tools and consumables contains a listing of the required tools and supplies needed to correctly repair and maintain the machine Changes in configuration to the machine are assigned a Tag number Information about a spe cific modification is found in the Tag Index within Tag Information The firmware matrix lists the launch firmware level and all subsequent issues Install provides the procedures required to install the machine and options The Principles of Operation have been added to provide additional machine operation theory and information to help in resolving obscure machine faults Initial Issue pum DocuPrint N2125 General Procedures Information Introduction General Procedures Information Introducti 02 2000 Initial Issue 64 DocuPrint N2125 GP 1 1 General Specifications Table 1 General Specifications Category Specification Painting meted Electro photographic system rolle
260. oll REP 4 4 Tray Bottom Assembly REP 4 5 MBF No Paper Actuator REP 4 6 Tray Pick Up REP 47 Retard Pad Assembly REP 4 8 MBF No Paper Sensor REP 4 9 Pick Up Solenoid 45 45 46 46 47 48 48 49 440 440 411 ait 448 444 415 416 447 419 419 420 421 4 21 422 423 424 424 425 428 427 428 428 428 429 430 431 432 432 4 33 433 434 4 Repair Adjustment REP 4 10 Envelope Connector Assembly 435 Paper Transportation REP 5 1 Paper Handler Assembly 437 REP 5 2 Toner Sensor 438 REP 5 3 Registration Actuator 439 REP 5 4 Registration Sensor 440 REP 5 5 Registration Clutch 440 REP 5 6 Rubber Registration Roll 441 Exit Assembly and Fuser REP 6 1 Transport Chute Assembly 443 REP 6 2 Fuser Assembly 443 REP 6 3 Fuser Harness Assembly 444 REP 6 4 Exit Chute Assembly 445 REP 6 5 Exit Motor Assembly 446 REP 6 6 Stack Full Sensor 446 REP 6 7 Mid 1 amp Mid 2 Roll Assemblies 447 REP 6 8 Stack Full Actuator 449 REP 6 9 Fuser Upper Cover Assembly Heat Rod 450 Xerographics REP 7 1 BTR Assembly 451 REP 7 2 Print Cartridge Top Guide Assembly 451 REP 7 3 Print Cartridge Sensor Assembly 452 REP 7 4 Laser Assembly 53 REP 7 5 Print Cartridge Side Guide 453 Main Drive REP 8 1 Main Motor Assembly 455 REP 8 2 Main Drive Gear Assembly 455 Electrical REP 9 1 Fan Assembly 487 REP 9 2 System Controller PWB 457 REP 9 3 Print Engine Controller PWB 458 REP 9 4 SVDC PWB 458 REP 9 5 LVPS PWB 480 REP 9 6 HVPS P
261. oll to Confirm Reg Clutch and press Enter You can hear the Registra tion Clutch energize Go to RAP 38 Scroll to Main Motor Operation and press Enter The smoothly Repair or replace as necessary the Registration Rolls REP 5 6 Registration Clutch REP 5 5 Main Drive Gear Assembly REP 8 2 Main Motor Assembly REP 8 1 Registration Rolls rotate Perform RAP 32 to test the Registration Sensor The Registration Sensor is working correctly YN Repair or replace the Registration Sensor as necessary REP 5 4 Perform RAP 48 to test the Exit Sensor The Exit Sensor is working correctly YN Replace the Fuser Assembly REP 6 2 Status Indicator Repair Analysis Procedures RAP 9 RAP 10 02 2000 248 Initial Issue DocuPrint N2125 elect Test Print and Run test prints When the error code appears inspect the positon of lead edge of the paper The lead edge of the paper passes between the BTR and the Cartridge Drum Check for contamination or obstructions between the Registration Rolls and tha Print Cartridge Drum Y Detack Saw is clean and free of contamination N Clean the Detack Saw or Replace the Transport Chute Assembly REP 6 1 Inspect paper path between Transport Chute Assembly and the Fuser Assembly The paper passes through the Fuser Assembly YN Replace the Fuser Assembly REP 6 2 Replace the Print Engine Controller PWB REP Replace
262. oller PW check the voltage between P J28 pin 1 and frame ground The voltage is 24VDC YN Replace the LVPS REP 9 5 Replace the Print Engine Controller PWB REP Replace the Print Engine Controller PWB REP 9 3 Status Indicator Repair Analysis Procedures RAP 11 RAP 12 02 2000 220 Initial Issue DocuPrint N2125 RAP 13 Install Print Cartridge J3 The Print Cartridge is not in place or is installed incorrectly Procedure Open the Front Cover and remove the Print Cartridge Inspect the tab on the top left ofthe Print Cartridge that actuates the Print Cartridge Sensor Assembly The tab on the Print Cartridge intact N Replace the Print Cartridge PL 8 1 Y Press and release the Print Cartridge Sensor Assembly Actuator The Print Cartridge Sen sor Assembly Actuator lever moves smoothly Replace the Print Cartridge Sensor Assembly REP 7 3 Enter diagnostics and select Component Test Scroll to Sensor Input test and press Enter Manually actuate the Print Cartridge Sensor Assembly Actuator The number on the LCD increments each time you press and release the actuator YN Switch the printer power off Remove the Left Interface Cover REP 1 1 the Left Cover REP 1 2 and the Left Plato Assembly REP 1 11 Install the Print Cartridge Leave the Front Cover open Disconnect P J25 from the Print Engine Controller PWB Check for continuity between 421 4 and 425 3 and 425 2 and 425 1 as you
263. oltages are correct YN Switch the printer power off Reconnect all the Pils to the LVPS Disconnect the following from the Print Engine Controller PWB PIJ22 Laser PIJ21 Laser SOS P1423 Connector PWB P1325 Print Cartridge Sensor P1332 Exit Motor P29 Main Motor P J26 HVPS PWB P1327 Exit Sensor PIJ31 Stack Full Sensor P1333 Size 1 PWB P J34 Duplex PWB P1335 OCT PWB Switch the printer power on and measure the voltages listed in Table 1 All voltages are correct YON Replace the Print Engine Controller PWB REP 9 3 Switch the printer power off Reconnect PLI23 Switch the printer power on Measure the voltages ised in Table 1 All the voltages are correct YON Disconnect the folowing from the Connector PWB P1343 Registration Sensor Registration Clutch 1442 Toner Sensor 5 Paper Set Sensor Pick Up Solenoid P141 Envelope PWB Switch the printer power on Measure the voltages listed in Table 1 All ages are correct Gt the volt Switch the printer power off Reconnect one of disconnected plugs Switch printer power Measure the voltages listed in Table 1 All the voltages are cor rect YN Pesce te smoot nec ih conan PE Repeat the step with the next disconnected plug Switch the printer power off Reconnect one of the disconnected plugs Switch the printer power on Measure the voltages listed in Table 1 All the voltage
264. om the Feeder Sensor Feed Clutch Assembly Turn Clutch Assembly and Motor Assembly path Signal Levels High 33V Low 0V Table 9 Signal Names FEEDS Feed control signal or the Feeder 3 The Feed Cluich Assembly and the Sona Name Description Clutch Assembly are activated when this signal goes Low COW PAP T Signal rom the Low Paper Sensor This signal s Low when the Low Paper Sensor is activated Signal Levels High 3 3V Low OV FEEDZ Food control signal Tor the Feeder 2 The Feed Clutch Assembly and the Signal Levels High 3 3 Low OV Hur Clutch Assembly are activated when this signal goes Low FEED Control signal which actuales the Feed Clutch Assembly Signal Levels High 3 3V Low 0V Signal Levels High 24V Low 0V ING FAP Signal Wom the No Paper 3 Sensor equipped on 550 Sheet Feeder OUT Control signal which actuates the Turn Clutch Assembly The Turn Clutch 3 This signal is Low when the No Paper 3 Sensor is activated Assembly is interlocked with the Feed Clutch Assembly Signal Levels High 3 3V Low 0V Signal Levels High 24V Low OV ING PAPE Signal rom the No Paper 2 Sensor equipped on te 550 Shoat Feeder NUD MOTOR Control signal which turns on the molar Assemb 2 This signal is Low when the No Paper 2 Sensor is activated Signal Levels High 33V Low 0V Signal Levels High 3 3V Low 0V AV interinck signal which related wih ina al ciuchas and molors equipped
265. om the Print Engine Control ler PWB Switch the printer power on On the Print Engine Controller PWB check the voltage between P21 6 and frame ground The voltage is 5 0 VDC YON the Print Engine Controller PWB check the voltage between P25 pin 4 and ground The voltage is 5 0 VDC YON Go to RAP 29 On the Print Engine Controller PWB check the voltage between P28 pin 7 and frame ground The voltage is 5 0 VDC YN Replace the LVPS REP 9 5 Replace the Print Engine Controller PWB REP 9 3 the Print Engine Controller PWB check the voltage between P25 pin 3 and trame ground The voltage is 5 0 VDC YON Goto RAP 13 Replace the Print Engine Controller PWB REP Goto RAP 30 Initial Issue 0212000 Status Indicator Repair Analysis Procedures DocuPrint N2125 223 RAP 16 RAP 17 RAP 18 Fuser Failure Power Off On U4 There is a problem with the Fuser Assembly RAP 19 IOT NVM Fail Power Off On U6 There is problem with Non Volatile RAM Procedure Procedure Switch the printer power off Wait a few minutes then switch the printer power on The Error Switch the printer power off then on The U6 Error Code appears Code reappears YN YN ensure that the problem is solved switch the printer power off and on several times Run 25 to 30 test prints The Error code reappears The U6 Error Code reappears YN YN Problem solved Problem Solved Go to RAP 31 Enter Diagnostics a
266. om the System Controller PWB Switch the printer power on Check the voltage between pins 3 and 4 on the disconnected plug The voltage is 5 0VDC N On the LPS check the voltage between P J PNI pin 1 and frame ground The voltage is 24 0VDC YN Replace the LVPS REP 9 5 Replace the System Controller 5 0 0 Power Supply REP 9 4 Switch the printer power off Remove any options connected to the System Controller PWB Reconnect P J13 to the System Controller PWB Switch the printer power on Check the voltage on P J13 between pin 3 and frame ground if there are no options installed follow the No path The voltage is 5 0VDC YN Replace the System Controller PWB REP 9 2 Switch the printer power off Reinstall the removed options one at a lime switching on the power and checking for 5 0VDC on P J13 between pin and frame ground after each one is installed Replace the option just installed when the voltage fails On the Print Engine Controller PWB check the voltage between P J28 pin 1 and frame ground PA28 pin 7 and frame ground and P J28 pin 10 and frame ground The voltage on pin 1 is 24VDC pin 7 is 5 0VDC and pin 10 is 3 3VDC All voltages are correct YN Replace the LVPS REP 9 5 Replace the System Controller PWB REP 92 If the problem persists replace the Print Engine Controller PWB REP 9 3 Initial Issue DocuPrint N2125 02 2000 227 Status Indicator Repair Analysis Procedures RA
267. omagnetic Face up vay open ES Jose Face up Way components of the printer The following allows service personnel to status or change NVM T out instal ay Main tay not installed prop settings ery insert main tray ay Dou natal ay cs ax tray Trot installed prop Table 1 summarizes the operation of the Control Panel keys in the NVM Config Menu insert Tray properly MADE cs Aux Way 2 nol installed prop fable 1 contig Key Table erly insert Tray properly Key Numbers Actions Wain Drive Motor Fai Ur Power amp on f problem Down Zore Fistkey press will request password linues call for service eri hough cations afer password ROS Fai uz Power off on problem con ie bean en FRERES If location is READ ONLY a R will be dis played Fuser Fat vr Power of amp T probem con raser lores Value Up Value Down Tor Fistkey press wil display current value Fan Far Us Power of amp on problem cor Pea Cage AUTRE LP linues call for service a er Tess Enter key o enter new value message OT Av Fal u nerf on problenr gon Wrote value selected to will be dis nues cil ordenes played New value has been entered into Duplex Unt Far ES Power of amp on problem cor Nvm rues cil to service 0737 Password to enter NVM Password only has To Envelope Feeder unital 5 Power off amp on if pr
268. on PL 14 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove the Offset Catch Tray REP 10 1 Remove the Exit Tray Extension REP 10 2 Remove the Exit Tray REP 10 3 Turn the Offset Catch Tray upside down Remove the Lower Cover REP 10 5 Remove the five screws that secure the Inner Exit Chute Assembly Figure 1 Hold open the Rear Cover Remove the assembly Figure 1 2125 4293 Figure 1 Inner Exit Chute Assembly Replacement 1 Reinstall the components in the reverse order REP 10 7 Offset Catch Tray PWB Parts List on PL 14 2 Removal CAUTION These components are susceptible to electrostatic discharge Observe all ESD procedures to avoid damage WARNING Switch off the power and disconnect the Power Cord Remove the Offset Catch Tray REP 10 1 Remove the Exit Tray Extension REP 102 Remove the Exit REP 103 Turn the Offset Catch Tray upside down Remove the Lower Cover REP 10 5 Hold open the Rear Cover Remove the Inner Exit Chute Assembly REP 10 6 Remove the screw that secures the PWB to the Inner Exit Chute Assembly Figure 1 Disconnect 209 P 224 210 and PLJ229 Figure 0 Remove the Offset Catch Tray PWB Figure 1 Figure 1 Offset Catch Tray PWB Replacement 1 Reinstall the components in the reverse order Repair Adjustment REP 10 6 REP 10 7 0212000 Initial Issue DocuPrint N2125 REP 10 8 Motor Drive Assembly Parts List on PL 14 2
269. on The Envelope Signal Levels High 24 Low 0V Signal Name Descrpion NO PRIT Signal om tha Paper Sat Sensor THs signals Low whan the Paper Ser Sensor is activated Signal Levels High 33V Low 0V Wiring Data 272000 Initial Issue Base Engine 748 DocuPrint N2125 Print Engine Controller PWB lt gt Laser Assembly Figure 15 Table Table 12 Signal Names 12 Signal Name Descipion TaPDATR Print image Data Print Engine Laner PAS Signal Levels High 3 3V Low 0V Control signal which determines the drive voltage or the Laser Diode 1 EIA gel2 POAT nm 2er tl 0 DEN Control signal which determines he drive voltage or the Laser Diode Pues Putt signal Analog AD OFT Taser Disda 2 5 signal Analog 3 4 EE Synchronization Signal generated by the SOS PWE which indicates The 4 3 start of each scan 5 2 6 1 Signal TTL Eur 50 power source To The Laser Diode OV when the Front Cover Assem bly is open or the Print Cartridge is not in place puen sos High 5V Low ov morou icanner Motor Control signal which switches the Laser Motor on and off se ON E Low OV ON High 3 3V OFF H 5V 9 DI LES Synchronization signal for the Laser Motor signal Pulse P212 5
270. onnect the Power Cord 1 Remove the Interface Cover Assembly REP 1 1 Disconnect host cables connected to the System Controller PWB Disconnect P J18 and P J13 trom the System Controller PWB Figure 1 Remove the five screws that secure the System Controller PW to the printer Figure 1 Move the System Controller PWB toward the rear to disconnect P J14 from the Print Engine Controller PWB REP 9 3 5 Remove the System Controller PWB from the printer Figure 1 2025 4103 Figure 1 System Controller PWB Initial Issue DocuPrint N2125 02 2000 Repair Adjustment REP 9 1 REP 9 2 457 Replacement REP 9 3 Print Engine Controller PWB 1 Reinstall the components in the reverse order Parts Hat on Removal CAUTION These components are susceptible to electrostatic discharge Observe all ESD procedures to avoid damage WARNING Switch off the power and disconnect the Power Cord Remove the Left Interface Cover Assembly REP 1 1 Remove the Left Cover REP 1 2 Remove the Left Plate Assembly REP 1 11 Disconnect P J21 P J22 23 P J25 26 P J27 P J28 P J29 P J30 P J31 PLUS PIJ33 P J34 and P J35 from the Print Engine Controller PWB 5 Remove the four screws that secure the Print Engine Controller PWB to the printer Remove the Print Engine Controller PWB Figure 1 Controller PWB Figure 1 Print Engi Repair Adjustment 0212000 1 Issue REP 9 2 REP 9 3 458 DocuPrint N2125 Repl
271. opper to the printer Figure 1 3 Remove the two screws that secure the Interlock Cover to the printer Figure 1 4 Remove the Interlock Cover from the printer Figure 1 2025 4086 Figure 1 Interlock Cover Replacement 1 Reinstall the components in the reverse order Repair Adjustment REP 1 9 REP 1 10 02 2000 440 il Issue DocuPrint N2125 REP 1 11 Left Plate Assembly Parts List on PL 9 1 Removal WARNING Switch off the power and disconnect the Power Cord REP 1 12 Plate Handle Parts List on PL 9 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 1 Remove Paper Tray 1 2 Remove the Left Interface Cover Assembly REP 1 1 2 Remove the Left Interface Cover Assembly REP 1 1 8 Remove the Left Cover REP 1 2 8 Remove the Left Cover REP 1 2 4 Remove the six screws that secure the Lett Plate Assembly to the printer and remove 4 Remove the Front Cover Assembly REP 1 6 Figure 1 5 Remove the Left Front Cover REP 1 7 6 Remove the Left Plate Assembly REP 1 11 7 Remove the four screws that secure the Plate Handle to the printer and remove Figure 1 2125 4097 4 47 k L Figure 1 Plate Handle Replacement 205 ams 4 0 1 Reinstall the components in the reverse order Figure 1 Left Plate Replacement 1 Reinstall the components in the reverse order initial Issue Repair Adjustment DocuPrint 2125 REP 1 11 REP 1 12 Repair Adjustme
272. or Actuators to the Size Sensor Hous ing Figure 1 11 From the back side disengage the two Locking Tabs that secure the Size Sensor Actua tors to the Housing Assembly and remove Figure 1 hee lt Figure 1 Size Sensor Actuators 10 Les Ss 2028 4100 Initial Issue 0212000 Repair Adjustment DocuPrint N2125 427 REP 3 12 REP 3 13 Tray 1 Size PWB Parts List on PL 9 1 Removal CAUTION These components are susceptible to electrostatic discharge Observe all ESD procedures to avoid damage WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove all optional feeders 3 Remove the Left Interface Cover REP 1 1 4 Remove Left Cover REP 1 2 5 Remove the Front Cover Assembly REP 1 8 6 Remove the Left Front Cover Assembly REP 1 7 7 Remove Top Cover Assembly REP 1 4 8 Remove the Left Plate Assembly REP 1 11 9 Remove the Plate Handle REP 1 12 70 Remove the Size Sensor Housing REP 3 11 11 Remove the Size Sensor Actuators REP 3 12 12 Remove the two screws that secure the Tray 1 Size PWB to the Size Sensor Housing Fig ure 1 78 Lift the PWB and disconnect PIUS1 and P J331 M Figure 1 Tray 1 Size PWB Replacement 1 Reinstall the components in the reverse order REP 3 14 Size Harness Assembly Parts List on PL 9 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left Interface Cover REP 1 1
273. ostics and select Component Test Scroll to Exit Motor Fwd Operation Open the Rear Cover and cheat the Rear Cover Interlock Press the Enter Key The Exit Motor rotates YN Switch the printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Disconnect P J32 from the Print Engine Controller PWB On the disconnected plug check the resistance between pins 1 and 2 pins 1 and 3 pins 1 and 4 and between pins 1 and 5 All readings are 25 to 35 ohms YN Replace the Exit Motor REP 6 5 Replace the Print Engine Controller PWB REP 9 3 Press the 0 key to stop the test Scroll to Exit Motor Rev H and press Enter The Exit Motor runs in reverse at high speer YN Switch the printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Disconnect P J32 from the Print Engine Controller PWB On the disconnected plug check the resistance between pins 1 and 2 pins 1 and 3 pins 1 and 4 and between pins 1 and 5 All readings are 25 to 35 ohms Replace the Exit Motor REP 6 5 Replace the Print Engine Controller PWB REP Press the 0 key to stop the test Scroll to Exit Motor Rev L and press Enter The Exit Motor runs in reverse at low speed YN Switch the printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Disconnect P J32 f
274. otation Tag after a part number will be used only to indicate the entire Tag whether that is a kit number or an individual part Whenever you install a Tag kit or all the piece parts that make up a Tag mark the appropriate number on the Tag matrix Using the Parts List d The numbers shown in each illustration correspond to the parts list number for that illustration 2 Throughout this manual parts are identified by the prefix PL followed by a number a decimal point and another number For example PL3 1 12 means the part is item 12 of parts list 3 1 3 The capital letters C E and S shown in an illustration stand for C ring E ring and Screw respectively shaded triangle tin an illustration indicates the item is part of an assembly 5 The notation with X Y following an part name indicates an assembly that is made up of components X through Y For example 1 with 2 4 means part 1 consists of part 2 part 3 and part 4 6 The notation RS means that the part is a requested spare Part numbers for these parts will be provided as soon as they are available 7 An asterisk following a part name indicates the page contains a note about this part 8 The notation J1 lt gt J2 and P2 is attached to a wire harness It indicates that connector jack 1 is attached to one end of the wire harness and connector jack 2 is attached to the other end that is plugged into plug 2 9 notation part of item 1 1 indicates
275. pe Feeder P J Table vr Hepsqes Connector Coordinate Description 1 Puait Li Vonnecis he Main Harness Assembly to the Envelope PWE Pyare c7 Connects the Sensor Harness Assembly to the Envelope PW pnas GA he Clutch Harness Assembly to the Envelope PWE B Posts CA Connects the No Paper Harness Assembly lo the Envelope PW PITS FE annects the No Paper Harness Assembly io The No Paper Sen E Pirate Ds Connects the Clutch Harness Assembly to the Clutch PITT 66 Connects the Sensor Harness Assembly fo the Envelope Exit Ser sor Assembly 4m 417 415 pra Connects ihe Main Harness Assembly To the Envelope Connector s PIJ Map A 416 r 7003 1s Figure 1 Envelope Feeder Map Wiring Data 0212000 Initial Issue Envelope Feeder DocuPrint N2125 Print Engine Controller PWB lt gt Connector PWB lt gt Envelope PWB Figure 3 Table 2 ENV PWE ENV PW E E E Ext Sensor Assy 8 B not used E z B No Paper Sensor d E 15 Conn PWB Pat Gui i PAS Print Engine Controller PWB ak Figure 2 Envelope Feeder Block Diagram Pin a 33VDC no envelope 00 0 envelope int Engine Controller PY Print Engine Controller PWB Figure 3 Print Engine Controller PWB lt gt Connector PWB lt gt Envelope PWB Initial Issue 27200
276. pe Resa Wi n Scan Or Aaron Ress Nn wa Prac Dr DUP Agent 0e aaa Wit Las EE Sean Dr OUP s Ronde D 00 aad On pa rar Deals Eras bs ead Oy sais US Eros bs ead Oy beaut EMINUS Tabie 5 Fuser Temperature Equivalency oer anita E IM Na Caes eat Rol Temperature CO F 00 PCIE lo RER oT 152 C 1306 F 03 A5 149 0 x 210 0 5 8 x 8 2 pe TOETATE 04 statement s TEPC SAF 05 DL 110 0 x 220 0 4 3 x 8 6 pr 06 5 162 0 x 228 0 6 4 x 9 ps RCI REE hore bs TPCIMPY E m 07 TECINPY iat eave pm General Procedures formation DocuPrint N2125 6 19 GP 2 6 Table 5 Fuser Temperature Equivalency Nonvolatile Code 4 NV4 Contents ___ Heat Roll Temperature C F 08 180 C 7 356 F Default Value os TION F Ld ENTER o3 TSEC TST o 19607385 F 07 200927392 GE 04 399 F oF OFC 7406 F If there is a U2 Failure the detail code will be displayed when you press the Value Keys 3 or 7 Table 6 U2 Value Description T ROS Fail at WarmUp 2 ROS Fail after WarmUp If there is a U4 Failure the det played when you press the Value Keys 3 or Table 7 U4 Vals Description T Tow Trouble Temperature 2 WarmUp fal 3 STS disconnection Tai 4 High Trouble Temp 5 Continuous Heat ON If there is a U6 Failure the detail code will be displayed when you press the Value Keys
277. pecifications GP 1 6 Printing Accuracy GP 1 7 CRU Print Cartridge Fuser Assembly GP 1 8 Options GP 1 9 Optional Feeder Specifications GP 1 10 Duplex Assembly Specifications GP 1 11 Offsetting Catch Tray Assembly Specifications GP 1 12 Envelope Feeder Specifications Printer Diagnostics GP 2 1 Power On Diagnostics GP 22 Controller ESS Diagnostics GP 2 3 Keys Pad amp LED Layout GP 24 IOT Diagnostics GP 2 5 Test Print GP 2 6 NVM Config GP 2 7 Component Test GP 28 Entering Download Mode GP 2 9 To Reset Fuser GP 2 10 Reset Menu GP 2 11 System Controller Reset Principles of Operation GP 3 1 Print Process Overview GP 3 2 The Paper Path GP 3 3 Drive Flow GP 3 4 Print Engine Controller and Control Panel Functions GP 3 5 Power Supplies GP 36 Laser Control GP 37 Fuser Control GP 3 8 Erase Cycle GP 3 9 Fan Control GP 3 10 Duplex GP 3 11 Envelope Feeder GP 3 12 Offset Catch Tray GP 3 13 Option Feeder Assembly Menu Maps GP 4 1 Menu Maps Supplemental Tools Supplies amp Hardware 63 65 66 66 67 6 11 6 11 612 6 12 613 6 14 6 14 645 6 15 6 16 6 16 617 618 620 621 622 622 623 625 628 629 633 634 6 34 635 6 36 6 37 6 37 6 39 6 41 6 44 6 47 GP 5 1 Supplemental Tools Supplies and Hardware 6 59 ni DocuPrint N2125 02 2000 64 General Procedures Information General Procedures Information 0212000 Initial Issue 62 D
278. ponents in the reverse order Release the locking tabs and remove both the left and right bearings Figure 1 10 Move the Rear Roll Assembly forward then to the left until the right end is free Figure 2 11 Remove the Rear Roll Assembly Figure 2 Figure 1 Locking Tab and Rear Belt Stopper Initial Issue DocuPrint N2125 497 Repair Adjustment REP 12 8 REP 12 9 REP 12 10 Middle Roll Assembly Figure 2 Rear Roll Assembly Replacement w 1 Reinstall the components in the reverse order Parts List on PL 13 2 Removal WARNING Switch off the power and disconnect the Power Cord Remove the Duplex Assembly REP 12 1 Remove the Turn Chute Assembly REP 12 2 Remove the Duplex Cover REP 12 3 Remove the Drive Cover REP 12 5 Remove the Duplex PWB REP 12 4 Remove the Connector Chute Assembly REP 12 6 Remove the Motor Assembly REP 12 8 Release the locking tab and remove the Middle Belt Stopper Figure 1 Remove the Synchronous Belt from the pulley Remove the Middle Duplex Gear Figure 1 Remove 17 and 18 Gear Figure 1 Use a small screwdriver to release the left and right bearings Figure 1 Lift the Middle Roll Assembly then move the roller to the left until the right end is free Fig ure 2 Remove the Middle Roll Assembly Figure 2 Figure 1 Locking Tab and Middle Belt Stopper Repair Adjustment REP 12 9 REP 12 10 498 Initial Iss
279. printer completes Power On Diagnostics and Ready is dis played YN Perform RAP 25 Press 1 twice to select Print Menu then press and release 2 until Menu Map is displayed Press Enter 4 to print the Menu Map Processing Menu Map is displayed immediately fol lowed by Processing Tray The display is correct YN Perform RAP 25 RAP 26 red to the output tray Perform RAP as specified by the Error Code Message listed in Table 1 of section 2 The print contains readable text YN If the print is black or blank perform IQ RAP 10 or IQ RAP 2 If the text is garbled Perform JRAP A The print qu YN Perform Image Quality Checkout ity of the Menu Map is acceptable DocuPrint N2125 15 02 2000 Service Call Procedures 13 14 Enter Diagnostics and select Print Menu Soroll to Test Pin Food at least 5 test prints all avaiable rays to the Standard output tay GP 2 5 r lest print Tost prints suc Sealy delivered from each YN Perform RAP as specie by the Eror Code Message isted in Table 1 of section 2 If the Duplex Assembly is installed run at least 5 duplexed prints GP 2 5 for test print If a Duplex Assembly is not installed follow the Y path The prints were delivered success fully YON Perform RAP as specified by the Error Code Message listed in Table 1 of section 2 If a Offset Catch Tray OCT is installed run at least 5 prints to
280. program fle Dav Bas DC Operation ioa Dav Bias Operation 6 Type mode LPT1 p ETR Operation 7 Cile_drectory copy b filename LPT1 then press Enter BTR Operation 8 Data LED should light up and LCD should display Downloading Please Wait DE SR 9 Wait for message Down Load Completed Please reboot to appear on the LCD All Duplex Motor Hi Operation Press TTT sap moter LEDs should be cycling for about 5 seconds then go off Duplex Motor Low Operation Press 0 or 4 to stop motor 10 Task completed Power off power on Exi Motor Fwd Operation Press or to slap motor Exit Motor Rev H Operation Press 0 or 4 10 stop motor Ext Motor Rev L Operation Press 0 or To slop motor Wain Motar Operation Mais tor remains on TOFS Gr Press 0 oF to stop motor Fan Motor Hi Operation Press 0 or 4 to stop motor ROS Motor Operation Press 0 or 4 lo stop motor OCT Motor Operation Press O or 10 stop motor OCT Oise Motor Operation AI Tesis Operation TE a COMPUTA tes TASER Diode Operation ROM Checksum Check sum displays for5 seconds Paper Tay Size Reading Press key 4 serol through diferent Way press key 0 to ext initial Issue pum General Procedures Information DocuPrint 2125 621 GP 2 7 GP 2 8 GP 2 9 To Reset Fuser 1 2 4 Power down printer Simultaneously hold keys 2 and 6 down Power up printer wait for message IOT to appear on the LCD Release both keys th
281. r Assembly Replacement 4 Reinstall the components in the reverse order Initial Issue s2000 Repair Adjustment DocuPrint N2125 4 55 REP 8 1 REP 8 2 20 Pull bottom of assembly and lower the assembly to release the locking tab and remove Figure 1 19 205 4092 Figure 1 Drive Gear Assembly Replacement 1 Reinstall the components in the reverse order Repair Adjustment pen Initial Issue REP 8 2 456 DocuPrint N2125 REP 9 1 Fan Assembly Parts List on PL 9 1 Removal WARNING Turn the power off and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left Interface Gover Assembly REP 1 1 3 Remove the Left Cover REP 1 2 4 Remove the Front Cover Assembly REP 1 6 5 Remove the Left Front Cover REP 1 7 6 Remove the Top Cover Assembly REP 1 4 7 Open the Rear Cover Assembly B Remove the Left Plate Assembly REP 1 11 8 Disconnect P J283 connected to the Fan Assembly from the LVPS PWB 10 Release the harness of the Fan Assembly from the two clamps on the printer Figure 1 11 Remove the four screws securing the assembly to the printer Figure 1 12 Remove the Fan Figure 1 Figure 1 Fan Assembly Replacement 1 Reinstall the components in the reverse order REP 9 2 System Controller PWB Parts List on PL 10 1 Removal CAUTION These components are susceptible to electrostatic discharge Observe all ESD procedures to avoid damage WARNING Turn the power off and disc
282. r Assembly is transmit ted through Gear 14 to the Pick Up Gear that drives the MBF Roll Assembly When the Pick Up ted through the Drive Gear Assembly to the Turn Clutch Assembly When the Turn Clutch Solenoid actuates it transmits the energy from Gear 14 to the Pick Up Gear that is located on Assembly actuates it transmits the energy to the Turn Roll Assembly the end of the MBF Shaft Assembly Main Motor Assembly Main Motor Assembly Fick Up Gear gt FRONT Tum Clutch Assembly Drive Gear Assembly Drive Gear Assembly en 6015 Figure 2 Drive transmission to the MBF Roll Assembly Figure 3 Drive transmission to the Turn Roll Assembly General Procedures Information FRERE GP 3 3 6 30 Drive transmission to the Feeder Assembly As shown in Figure 4 the mechanical energy created by the Main Motor Assembly is transmit ted through the Drive Gear Assembly Turn Clutch Assembly and idle gears to the Feed Clutch Assembly When the Feed Clutch Assembly actuates it transmits the energy to the Feed Roll Assembly Main Motor Assembly FRONT Clutch Assembly Gear 1 Goar2 Gear 4 Drive Gear Assembly gas Feed Clutch Assembly doi Figure 4 Drive transmission to the Feeder Assembly Drive transmission to the Rubber Registration Roll Assembly As shown Figure 5 the mechanical energy created by the Main Motor Assembly is transmitted through the Drive Gear Assembly to the Registratio
283. r Order Number 97502379 Provides duplex two sided printing Offset Catch Tray OCT Customer Order Number 97502380 Gach set of printouts by 1 1 inches 2 8 cm The tray holds up to 500 sheets of paper in four different paper sizes Envelope Feeder Customer Order Number 97502388 Provides continuous envelope feed 6100 Figure 1 Optional Feeders General Procedures Information GP 1 8 GP 1 9 02 2000 Initial Issue 612 DocuPrint N2125 Dimension and Weight Table 1 Table 1 Dimension and Weight wath eight LL Feeder Paper 420mm 488 mm 7 175mm 03kg 2215 Tay 16 67 les Feeder Mzzmm 43S mam TTT 175mm 7 6 16 7 5s 16 67 6 9 Paper Tay Samm ALLIES emm AEE 147 5 3 Power Supply The 24VDC and 3 3VDC are supplied from the LVPS PWB through the Print Engine Control ler PWB to the Option Size PWB and Feeder PWB GP 1 10 Duplex Assembly Specifications Dimension and Weight Table 1 Table 1 Duplex Assembly Specifications and Weight WE Dep Height Weg 320 mn 267 320 1267 10 mm BST 0801507 100 mm 39 320 mm 128 gt Y gt 320 mm 12 67 x Figure 1 Duplex Specifications Power Supply The 24VDC and 3 3VDC are supplied from the LVPS PWB through the Print Engine Control ler PWB to the Duplex Assembly Initial Issue Doc
284. r Toner Sensor detects a low Tevel of toner in the CRU the printer makes ten additional prints before generating an J5 error message Initial Issue DocuPrint N2125 02 2000 65 General Procedures Information GP 1 1 GP 1 2 Safety Standards N2125 satisfies the following safety standards Table 1 Table 1 Safety Standards GP 1 3 First Print Output Time FPOT The First Print Output Time is the time from when the printer receives a START signal in the READY state until a single page is printed and delivered into the output tray Table 1 Table 1 FPOT UL 1950 3rd Edition CSA C22 2 no 950 95 or equiv alent NOM 200V 220V satisfies 950 including amendments 1 2 3 and 4 CE Direc ive 1 Nordic and other Agency Approval 2 CCIB Note 1 When the controller is installed the OEM cus shall be responsible for the submittal of CE and ccie 2 The OEM customer shall be responsible for the Nor dic agency approvals including NEMKO SEMKO SETI and DEMKO Category Standard Salisfied Taser Safely TOOVT2OV is submitted to FDA 21 Chapter Paper Ta 1 sec Tay 2 sec Tay 3 sec MBF sec 1 Subchapter J Section 1010 1040 Size Simplex Duplex Simplex Duplex Simplex Duplex Simpler Duplex 220V 240V type is submitted to IEC 825 Class 1 laser Leser 102 65 104 77 ie hes lsz i85 Product SEF 175 187 198 175 Ozon
285. r charging Single com ponent magnetic toner development Exposure meos emiconducior Laser Beam Scanning Laser specifications Class 1 Laser Product Class 3B Laser rated at SmW output 780nm Resolution 60071200 dots per inch dpi switchable at full engine speed Fuser method Heat and pressure Warm up time From a cold start 22 171 6 ambient temperature io READY TO PRINT within 65 seconds Table 1 General Speci Category Specification Norage envionment without packed Print Cartridge Normal condition T2 months maximum at 2010 5007 4 to 58 F 5 85 RH with no condensation present Severe condition 48 hours maximum at 50 60 C 122 140 F 85 95 RH with no condensation present Acoustic Noise Standby mode 35 048 Sleep mode Background noise only Printing mode 49 5dB A or 53 0dB A Base Engine Duplex Assembly Tray 2 Tray 3 Envelope Feeder and OCT The paper is 20 Letter SEF at 600 dpi Dust generated No more than O TRIS of dust Power Supply TOO TZOVAC 80 T40VAC SO 60Hz 4792 63927 220 240 198 264VAC 50 60Hz 47Hz 63Hz Power consumption TOO TZOVAC printer Maximum consumption 800W Rur ning 45 W Sleep Maximum current 100VAC 6 66A 120vac 240 AC printer Maximum consumption 800W Running 45W Sleep Maximum current 240VAC Note No electrical current is supplied to th
286. r from the back of the Bottom and remove Figure 1 Figure 1 MBF No Paper Actuator Replacement 1 Reinstall the components in the reverse order REP 4 6 Tray Pick Up Parts List on PL 4 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left interlace Cover Assembly REP 1 1 Remove the Front Cover Assembly REP 1 6 Remove the Left Front Cover REP 1 7 Remove the MBF Chute Assembly REP 4 1 Remove the MBF Feed Roll Assembly REP 4 2 Open the Bottom Tray Assembly Lift the Tray Pick Up trom the Bottom Tray Assembly and remove Figure 1 Figure 1 Tray Pick Up Replacement 1 Reinstall the components in the reverse order Repair Adjustment REP 4 5 REP 4 6 02 2000 1 issue 432 DocuPrint N2125 REP 4 7 Retard Pad Assembly Parts List on PL 4 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left interlace Cover Assembly REP 1 1 Remove the Front Cover Assembly REP 1 6 Remove the Lett Front Cover REP 1 7 Remove the MBF Chute Assembly REP 4 1 Remove the MBF Feed Roll Assembly REP 4 2 Open the Bottom Tray Assembly REP 4 4 Carefully pry the left and right bracket arms of the Retard Pad Assembly from the MBF Chute Assembly Figure 1 9 Remove the assembly Figure 1 my ETA Figure 1 Retard Pad Assembly Replacement 1 Reinstall the components in the reverse order
287. r procedures to assist in correcting image quality defects These procedures provide defect samples and definitions to help identify the type of defect that exists the test pattern to use and actions required to correct the defects Section 4 Repair Adjustment This section contains the instructions for removal replacement and adjustment of the spared parts within the machine Section 5 Parts Lists This section contains illustrations of disassembled subsystems and a listing of the spared parts names are listed in this section of the manual even if the part itself is not spared All the parts that are spared will have the part number listed Parts that are not spared will not have a number listed Section 6 General Procedures This section includes the Operations Menu Map and the Service Mode Menu Map It includes all unique service operations supplemental tools and supplies Initial Issue 02 2000 DocuPrint N2125 x Organization Terminology and Symbols The following is the terminology and symbols that are used in this manual for Warnings Electrostatic Device or General Cautions and Notes Warning This equipment complies with the requirements in Part 15 of FCC rules for a class A computing device Operation of the equipment in a residential area may cause unacceptable interference to radio and TV reception requiring the operator to take whatever steps are necessary to correct the interference Ele
288. ra acces coe Putin ar le ge a vay at epe Posse Fol The ea Roll and he Pressure all are e o and contamination YN Fle he Fuser Assembly REP 6 2 Replace the following in order until the defective component is found BTR Assembly REP 7 1 Fuser Assembly REP 6 2 Chute Transport Assembly REP 6 1 HVPS PWB REP 9 6 Laser Assembly REP 7 4 Print Engine Controller PWB REP 9 3 Problem solved IQ RAP 4 Horizontal Deletions A deletion is an area of the print where the image is missing or extremely light Horizontal dele tions extend across the page Figure 1 Leod Edge N2125 3915 Figure 1 Horizontal Deletions Initial Actions Check that the paper supply is dry and fresh Inspect the printer paper path for items such as staples paper clips and paper scraps Check installation of the Print Cartridge Check that the Print Cartridge ground contact points are clean Check that rollers and other components in the paper path are clean and unobstructed Procedure Enter Diagnostics and select Test Print Scroll to Print Pattern and press Enter 4 Run five test prints The test prints have horizontal deletions YON Exit diagnostics and enter the Menu Mode Print a Config Sheet The prints have hori zontal deletions The problem appears to be with the host computer or the cables If the problems per sist replace the System Controller PWB REP 9 2 Remove and reseat t
289. ram Wiring Data 272000 Initial Issue Duplex Assembly 7 26 DocuPrint N2125 Table 2 shows the signal names for the Print Engine Controller PWB lt gt Duplex PWB path Table 2 Signal Names Duplex PWB lt gt Sensor Photo IN H L Duplex Sensor Assembly and Duplex Motor Assembly Figure 4 Signal Levels High 3 4 Low 0V Signal Name Description Dup Motor Assy Dup Sensor Assy Up Tray Sensor DUPA Motor contra sigrar Signal Pulse DUPE Motor control signal M Signal Pulse DUP XA Motor contr signal LILILI 8 2 1 Signal Pulse 5 ator Sonal GT ele i Bey R Signal Pulse 8 s gg ignal Levels High 33V Low Oi B 51 z ING PAPER DUP Signal rom the Duplex Sensor Assembly This signal informs Ina paper pass at the Duplex Assembly to the Print Engine Controller This signal is Al Low when the Duplex Sensor Assembly is actuated when the paper Puss 5 4 3 2 1 3 2 1 PUS 1 2 3 4 passes at the Duplex Sensor Assembly FETTE WEN TSUP HOME Signal vom the Sensor Photo This signal informs that the Duplex Assembly is in the correct position Home Position This signal is Low lwhen the Duplex Assembly is in the correct position Signal Levels High 33V Low 0V Dup PW Figure 4 Duplex PWB lt gt Sensor Photo IN H L Duplex Sensor Assembly and Duplex Motor Assembly Initial Issue 272
290. ram the Print Engine Controller PWB On the disconnected plug check the resistance between pins 1 and 2 pins 1 and 3 pins 1 and 4 and between pins 1 and 5 All readings are 25 to 35 ohms Replace the Exit Motor REP 6 5 Replace the Print Engine Controller PWB REP Replace the Print Engine Controller PWB REP 9 3 Status Indicator Repair Analysis Procedures RAP 48 RAP 49 02 2000 242 DocuPrint N2125 Initial Issue RAP 50 Load MBF C5 Procedure Enter Diagnostics and select Component Test Scroll to Sensor Input test and press Enter Actuate and deactuate the MBF No Paper Sensor The number on the LCD increments each time you press and release the actuator YN The actuator moves freely and YN Replace the MBF No Paper Sensor Actuator REP 4 5 good condition not broken or damaged Switch the printer power off Remove the Lett Interface Cover REP 1 1 Left Cover REP 12 and the Left Plate Assembly REP 1 11 Switch the printer power on On the Print Engine Controller PWB measure the voltage between P J23 pin 14 and frame ground The voltage is 3 3VDC with the MBF No Paper Sensor deactuated and 0 0VDC wit the Sensor actuated YN Switch the printer power off Remove the Left Front Cover REP 1 7 Switch the printer power on On the Connector PWB measure the voltage between P J45 pin 3 and frame ground The voltage is 43 3VDC with the MBF No Paper Sensor dea tuated and 0 0VDC with
291. rder A FE S Jb Figure 2 Feed Clutch Replacement 1 Reinstall the components in the reverse order Repair Adjustment 0212000 Initial Issue REP 13 11 REP 13 12 4 108 DocuPrint N2125 REP 13 13 Transport Roll Assembly Replacement Parts List on PL 12 2 1 Reinstall the components in the reverse order Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the Envelope Feeder from the printer 2 Remove the Bottom Cover REP 15 1 3 Remove the Top Chute REP 13 2 4 Remove the Envelope Feeder PWB REP 13 3 5 Remove the Gear Cover REP 13 11 6 Remove the Torque Clutch and Bearing from Transport Roll Assembly Figure 1 7 Move the right bearing and Transport Roll Shaft to the left until it is free of the right sup port Figure 2 B remove the Transport Roll Assembly Figure 2 Figure 2 Transport Roll Assembly Initial Issue 0212000 Repair Adjustment DocuPrint N2125 4 109 REP 13 13 REP 13 14 Bottom Roll Assembly Parts List on PL 12 2 Removal Switch off the power and disconnect the Power Cord 1 2 4 5 7 10 WARNING Remove the Envelope Feeder from the printer Remove the Bottom Cover REP 13 1 Remove the Top Chute REP 13 2 Remove the Envelope Feeder PWB REP 13 3 Remove the Gear Cover REP 13 11 Remove the Torque Clutch Figure 1 Remove the Feed Clutch Figure 1 Remove the one way clutch and bearing from the Bot
292. res IQ RAP 7 IQ RAP 8 02 2000 348 Initial Issue DocuPrint N2125 B Check forthe continuity between the Metal Grounding Contacts and tho printer body ramo There is continulty between the Grounding Contacts and the Printer Frame von Replace the Print Cartridge Side Guide REP 7 5 Inspect the BTR Assembly for contamination and wear The BTR is free of contamina tion and wear YN Replace the BTR Assembly REP 7 1 Generate a Test Print and switch OFF the printer power halfway through print cycle Care fully remove the Print Cartridge and inspect the toner image on the Drum just before the transfer area BTR The image on the Drum is developed with sharp black easily read areas and no horizontal streaks YN Go to RAP 43 Inspect the toner image on the Drum immediately after the transfer area BTR The toner image on the Drum was transferred to the paper along with any horizontal streaks YN Replace the BTR Assembly REP 7 1 Open the Rear Cover Remove the Fuser Assembly Rotate the fuser idler gear manually and inspect the Heat Roll Open the fuser jam access cover Rotate the fuser idler gear manually and inspect the Pressure Roll The Heat Roll and the Pressure Roll are free of scratches and contamination YN Replace the Fuser Assembly REP 6 2 Go to RAP 44 Problem solved IQ RAP 9 Residual Image The image from a previous print which was not removed during the cleaning process has
293. rform RAP 1 before starting this RAR I RAP 1 results are correct switch the printer power PEST nT and disconnect the printer power Remove the Left Interface Cover REP 1 1 Loft Cover PTET pin 18 Fame Ground 33000 REP 12 andthe Let Pate Assembly REP 1 11 Connect printer power Switch the printer power Measure the voltage onthe LVPS between PLJ285 pins 1 and 2 The voltage matches the line voltage YN Repairireplace the AC Wire Assembly PL 10 1 Measure the voltage between both sides of the Fuse F1 and frame ground Both readings match the line voltage YN Switch the printer power off Replace fuse F1 125V 10A 250V Switch the printer power on Measure the voltage between both sides of the Fuse F1 and frame ground Both readings match the line voltage YN Replace the LVPS REP 9 5 Return to Initial Actions or to the procedure that sent you here Problem Solved is 24VDC Measure the voltage between LVPS P J281 pin 1 and frame ground The YN On the LVPS measure the voltage between P J284 pin 2 and frame ground The voltage is 24VDC YN Switch the printer power off Disconnect printer power Disconnect P J 281 Connect printer power Switch the printer power on Measure the voltage between LVPS P J 281 pin 1 and frame ground The voltage is 24VDC YN Replace the LVPS REP 9 5 Goto RAP 5 Measure the voltage between P J 284 pin 1 and frame ground The voltage i
294. rget cross hairs each line on the target is 1 mm Figure 1 YN Go to IQ RAP 15 Registration The printed test patterns meet the lead edge to trail edge registration specification Go to Skew Skew Procedure Enter Diagnostics and select Test Print Scroll to Print Pattern and press Enter 4 Observe the test pattern Measure the dimensions and B Figure 1 on two consecutive test patterns The difference between and B should be 1 5 mm or less The skew on the test patterns meets the specification YN Go to 0 RAP 13 Skewed Image The printed test patterns meet the Skew specification Go to the Skips and Smears Y Lead Edge of Paper E A ms At 1 Fold PROCESS Line m NIUS 3306 E Figure 1 Registration Lead Edge to Trail Edge E Nav26 Figure 1 Printer Engine Controller Test Pattern Initial Issue poem Image Quality Repair Analysis Procedures DocuPrint N2125 39 Registration Skew Skips Smears Procedure Enter Diagnostics and select Test Print Scroll to Print Pattern and press Enter 4 Inspect the ladder chart test pattern The pattern should be free from skips and smears Figure 1 The test prints are free from skips and smears YN Go to IQ RAP 16 Skips Smears Go to the Spots checkout
295. rint Engine Controller PWB REP 9 3 Cheat the Front Cover Interlock Switch Enter Diagnostics and select Component Test Scroll to each of the high voltage tests Table 1 Measure the voltage between the contact listed and frame ground Press the Enter Key All the voltages are correct YN Check the Transport Chute Assembly for proper installation Check the HVPS har ness for proper connection and for damage If everything is OK Replace the HVPS REP 8 5 Problem Solved Problem solved RAP 44 Electrical Noise Procedure Check if there is other electrical equipment such as electrical generators radio transmitters or devices using electrical motors within ten feet of the printer Shut off the other electrical equip ment or relocate the printer at least twenty feet away other devices The Electrical Noise problem is still present YN Problem solved Check the AC wall outlet and power cord see RAP 1 The AC wall outlet is correctly wired and grounded YN Inform the customer of insufficient voltage or improper wiring A licensed electrician must correct the wiring Open the Front Cover Remove the Print Cartridge inspect all contacts on the Transport Chute Assembly and the terminals on the Print Cartridge The terminals are in good condition and contacting properly when the cartridge is installed YN Replace the Transport Chute Assembly REP 6 1 or the Print Cartridge PL 8 1 as nec essary Remov
296. rive Assem bly Figure 1 10 Remove the three screws that secure the PWB Holder to the Inner Exit Chute Assembly Figure 1 Remove the holder Vi Release the locking tab and remove the Exit Gear and Bearing Figure 2 12 Remove the E Ring and Bearing from the other end of the shaft Figure 2 13 Slide the shaft to the right and remove the left end of he Mid Roll Assembly Remove the assembly Figure 3 pmi Figure 3 Mid Roll Assembly Replacement 1 Reinstall the components in the reverse order Figure 1 Ground Plate initial Issue p Repair Adjustment DocuPrint N2125 475 REP 10 15 REP 10 16 Offset Assembly Parts List on PL 14 2 Removal WARNING Switch off the power and disconnect the Power Cord Remove the Offset Catch Tray REP 10 1 Remove the Exit Tray Extension REP 10 2 Remove the Exit Tray REP 10 3 Turn the Offset Catch Tray upside down Remove the Lower Cover REP 10 5 Hold open the Rear Cover Remove the Inner Exit Chute Assembly REP 10 5 Release the two locking tabs and remove the Offset Lever from the Offset Assembly Fig ure 1 9 Remove the two screws that secure the Offset Assembly to the Inner Exit Chute Assembly Figure 1 10 Disconnect P J229 from the Offset Catch Tray PWB Figure 1 11 Disconnect P J226 from the Offset Home Sensor Figure 1 12 Remove the harness from all harness clamps 18 Remove the Offset Assembly Figure 1 Figure 1 Offset Assembly Replacement 1 R
297. ructions The path is free of obstructions YON Remove obstructions or contamination from the paper path Initial Issue 02 2000 DocuPrint N2125 345 Image Quality Repair Analysis Procedures IQ RAP 4 IQ RAP 5 Inspect the BTR Assembly for contamination and wear The BTR is free of contamination nd wear YN Replace the BTR Assembly REP 7 1 WARNING If the printer has been switched on the Fuser will be hot Open the Rear Cover and remove the Fuser Assembly Rotate the fuser idler gear manually and inspect the Heat Roll Open the fuser jam access cover Rotate the fuser idler gear manu and inspect the Pressure Roll The Heat Roll and the Pressure Roll are free of scratches and contamination YN Replace the Fuser Assembly REP 6 2 Replace in order until the problem is solved BTR Assembly REP 7 1 Laser Assembly REP 7 4 Fuser Assembly REP 6 2 Print Engine Controller PWB REP 9 3 IQ RAP 6 Spot Deletions Solid areas are marked with irregular white areas 25 2216 Figure 1 Spot Deletions Actions Check that the paper supply is dry and fresh Inspect the printer paper path for items such as staples paper clips and paper scraps Check installation of the Print Cartridge Check that the Print Cartridge ground contact points are clean Procedure Load fresh dry paper Run a test print The problem is still present Y N Problem solved Instal
298. s In the YIN Yes No steps of the RAPS a Yes response will lead you to the next step A No response will indicate a corrective action or will direct you to another step When the indicated corrective action has been completed go to Section 1 and restart the Initial Actions to verify that the problem has been corrected Initial Issue Image Quality Repair Analysis Procedures DocuPrint N2125 33 Introduction Measurements Image Quality Defect Definitions The System Controller Test Print Figure 1 is used to evaluate each of the print quality param eters Each area of the test pattern is used for a print quality parameter The areas and the print quality parameters are listed in Image Quality Checkout Table 1 Image Quality Defect Definitions Defect Definitions Go To TIGHT PRINTS The overall image density is o lig IG RAP T BLANK PRINTS Prints with no visible image TO RAPZ SPOTS There are spois of toner on the page TO RAP 3 HORIZONTAL DELETIONS There are areas ofthe image that are exremely I RAP light or missing entirely These areas run horizontally across the page in the direction of scanning VERTICAL DELETIONS There are areas of the image that are extremely JIO RAP S light or missing entirely These areas run vertically along the page in the direction of paper movement SPOT DELETIONS Solid areas are marked wit irregular while areas IG RAPS VERTICAL STR
299. s 24VDC YN Check the Front Cover The Front Cover is closed and actu switch YN Repair or replace the defective cover nterlock switch as necessary 19 the interlock Check the continuity through the interlock switch Replace if necessary Replace the LVPS REP 9 5 Status Indicator Repair Analysis Procedures 0212000 Initial Issue 2 242 DocuPrint N2125 RAP 3 DC Power Loading Initial Actions Perform RAP 2 DC Power before starting this WARNING input voltages can be lethal Use extreme care while checking the voltages on the vps connect the power cord while checking the continuity of fuses and while removing or reinstalling the components Procedure Switch the printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Disconnect the following from the LVPS P1428 Print Engine Controller PWB PIJ282 System Controller PWB PJ283 LVPS Fan Pnt 5 0 Power Supply Switch the printer power on and measure the voltages listed in Table 1 on the LVPS Table 1 VPS Red Lead Black Lead Voltage PRET pin Frame Ground 2VDC Past pin 10 Frame Ground 33VDC REE Frame Ground 24 0VDT All voltages are correct YN Replace the LVPS REP 9 5 Switch the printer power off Reconnect P J281 to the LVPS Switch the printer power on and measure the voltages listed in Table 1 All the v
300. s 6 127k28640 7 8 9 10 12 13 14 15 121K20551 16 11E09450 I Gore 18 190K84220 19 120617191 20 130 81970 32 SE14491 802005770 Description Inner Exit Chute Assembly with 2 43 Harness Assembly J21 P202 PWB Holder OCT PWB Ground Plate Drive Motor Assembly Gear Exit 20 Bearing Exit Gear 27 Gear 26 Gear 47W Gear Exit Static Eliminator HSG Gear Direction Solenoid Solenoid Lever Solenoid Pin Exit Sensor Assembly Stack Full Actuator Stack Full Sensor Sensor Harness Assembly J224 225 J226 J227 J228 Offset Roll Assembly with 23 26 43 Exit Roll Assembly Exit Roll Pinch Offset Bearing OCT Guide OCT Holder Exit Shaft Mid Roll Assembly Pinch Roll Mid Pinch Spring Inner Exit Chute Offset Assembly with 35 39 1 with 243 PEN Offset Motor Assembly 85 Areon Offset Housing 36 130 1970 Home Sensor 37 Offset Lever 38 Core Gear Ferrite Core 40 OCT Wire Assembly Sensor Bracket 42 Saddle Edge 43 Exit Pinch Spring S 600K79660 Hardware Kit Includes Screw with 34 38 Parts list 0212000 Initial Issue PL 14 2 524 DocuPrint N2125 6 General Procedures Information Introduction Introduction Printer Specifications GP 1 1 General Specifications GP 1 2 Safety Standards GP 1 3 First Print Output Time GP 1 4 Continuous Printing Speed After The First Sheet Out GP 1 5 Paper S
301. s Figure 1 13 Remove the two screws that secure the Rear Interlock Switch Assembly to the printer Figure 1 14 Remove the Rear Interlock Switch Assembly Figure 1 2125 4820 Figure 1 Rear Interlock Switch Assembly Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 02 2000 453 Repair Adjustment REP 9 9 REP 9 10 REP 9 11 Offset Catch Tray Harness Assembly Parts List on PL 10 1 Removal CAUTION These components are susceptible to electrostatic discharge Observe all ESD procedures to avoid damage WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left Interface Cover Assembly REP 1 1 Remove the Left Cover REP 1 2 Remove the Front Cover Assembly REP 1 6 Remove the Lett Front Cover REP 1 7 Remove the Top Cover Assembly REP 1 4 Remove the interlock Cover REP 1 10 Remove the Left Plate Assembly REP 1 11 9 Remove the Exit Chute Assembly REP 6 4 10 Disconnect P J35 from the Print Engine Controller PWB REP 9 3 11 Release the Offset Catch Tray Harness from all cable clamps Figure 1 12 Remove the two screws that securo the Offset Catch Tray Harness Assembly Figure 1 18 Remove the Offset Gatch Tray Harness Assembly from the printer Figure 1 2125 410 Figure 1 Offset Catch Tray Harness Assembly Replacement 1 Reinstall the components in the reverse order REP 9 12 Duplex Harness Assembly Parts List on
302. s are correct YN Replace the component just connected to the Print Engine Controller PWB Repeat the step with the next disconnected plug Switch the printer power off Reconnect one of the disconnected plugs Switch the printer power on Measure the voltages listed in Table 1 All the voltages are correct YON Replace the component just connected to the LVPS Repeat the step with the next disconnected plug Initial Issue DocuPrint N2125 02 2000 Status Indicator Repair Analysis Procedures RAP3 248 4 Tray Failure Power Off On C3 fenare anita he Tay dates Press key 7 The C3 eror code stil appears Tray Assembly 1 Tay 2 or Tay 3 aro not in place Procedure Exchange Tray 1 with the Tray generating the C3 code Run a test print from each tray The Erter Dlagnoelcs run a test peint ram avery eee section The Error Code apeciten stor code now Indicates Nay 1 fare Tray 2 or Tay 3 YON YON The error code indicates a Tray 2 allure Remove and reinstall Tray 1 Press key 0 The error code still appears YON YN Problem solved Measure the voltage from the lower contact of the Paper Feeder Socket P J672 and frame ground The voltage is 24VDC YN Measure the voltage from P J33 pin 6 on the Print Engine Controller PWB and frame ground The voltage is 24VDC YN Go to RAP 2 Switch off the printer power Remove the Size Sensor Housing R
303. s two Simplex prints Table 1 Customer Replaceable Units CRU Prints Weight TOK Print Cartridge T0000 420 grams OBST TSK Print Cartridge 15000 620 grams 1 38 Fuser Assembly includes BTR 200 000 na Initial Issue DocuPrint N2125 02 2000 6 11 General Procedures Information GP 1 6 GP 1 7 GP 1 8 Options There are several customer installed options available for the N2125 printer Table 1 Table 1 Options GP 1 9 Optional Feeder Specifications The Optional Feeder Assembly consists of a 550 Sheet Paper Tray and a 550 sheet feeder The feeder contains the mechanism to feed paper out of the 550 Sheet Paper Tray Option Description The Optional Feeder Assembly can be used as the second and the third feeder on the printer 550 Sheet Paper Feeder Customer Order Number 97502377 Provides 550 sheet continuous feed when used in con junction with the 550 sheet Paper Tray You can install one or two 550 Sheet Paper Feeders If two Optional feeders are installed the bottom feeder is designated Feeder 3 and the middle feeder is designated Feeder 2 Figure 1 550 Shoot Papar Way Customer Order Number 109800448 Used with the 550 Sheet Paper Feeder The Tray holds 550 sheets of paper Cover Assembly Rear Face Up Customer Order Number 97802406 Way can old 120 shoots GF20 b paper or Tamara 5 stack height Duplex Assembly Custome
304. sed during all modes of customer operation The laser and output of the laser scanner unit produces a beam that if looked into could cause eye damage Service procedures must be followed exactly as written without change When servicing the machine or laser module follow the procedures specified in the manual and there will be no hazards from the laser Laser FDA Any laser label visible to service must be reproduced in the service manual with location shown or indicated Safe working procedures and clear warnings concerning precautions to avoid possible exposure must also be included The Laser contained in the DocuPrint N2125 meets the following standard Laser class maximum 5mW wavelength 780nm The following LASER symbol will be displayed at the start of any procedure where possible exposure to the laser beam exists LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT Initial Issue DocuPrint N2125 02 2000 Electrostatic Discharge Table of Contents Title Introduction Organization Revision Control List Service Call Procedures Section Contents Repair Analysis Procedures Section Contents Image Quality Repair Procedures Section Contents Repair Adjustments Section Contents Parts List Section Contents General Procedures Section Contents Wiring Data Section Contents Introduction The Doc
305. sembly to the VPS PIES K42 Figure2 Connects the AC Input vollage the WPS PIT IFT Figure 2 Connects the Laser Assembly to the Print Engine Convoller PTS a Figure 2 PIES K7 Figure 2 Connects the SVDC PWB fo the System Controller PUS PRE 34 Figure 27 Connects the Connects the Laser Assembly fo the Print PIS has Figure 2 Connecis the Main Motors the Prnt Engine Controller Engine Controller PWB ER TAS SEE UR Commer FR CONI ERE Et psrausz omes e Dux PWE T Prnt Erge Contoh We IST urea Connecta te Fret Carton Senor tothe Frid PUT GE Figure 2 Connects the Control Panel to The System Controller PWE PIES FS Figure Connects the HVPS To the Print Engine Controler PWE LR PO exits n ey cg PE he ey PRT TBE Figure 2 Connecis the Fuser Exit Sensor to the Print Engine aller Pwe PRE RSS Figure 2 Connects tre To the Print Engine Controler PW PG KS Figure 2 Connects the Main Motor to the Print Engine Controller PS KES Figure 2 Connects the Rear Interlock Switch To the Print Engine Controller 3T Figure 2 Connects the Stack Full Sensor to the Print Engine Contrar ler Pwe PIE IRS gue Connects The Exit Motor Assemb to the Print Engine roller Wea pee 02 2000 Initial Issue Base Engine 74 DocuPrint N2125 Pid Maps ES a 65 E 26 27 33 28 30 2 673 672 671 TR a We s
306. shorter than the set Overrun Failure interval after completion of warm up The set Overrun Failure is a time interval corresponding to 102 of the rated Laser Motor speed of rotation GP 3 7 Fuser Control Fuser Temperature Control The Thermistor monitors the temperature on the surface of the Heat Roll and compares that temperature with the rated temperature that was set in NVRAM The Print Engine Controller switches the Heat Rod on or off depending on how the actual temperature differs from the rated temperature Fuser Temperature Adjustment You can adjust the rated Fuser temperature by changing the NVRAM Value You can adjust the setting in 16 increments with each increment approximately 4 C The printer switches on the Heat Rod when the Fuser temperature lowers below the current control temperature approximately 178 C for the standard control temperature The printer switches off the Heat Rod when the Fuser temperature rises above the current control temper ature approximately 180 C for the standard control temperature Fuser Warm up Power to the Heat Rod is applied at the start of printer warm up Warm up is complete when the Heat Roll reaches the current control Temperature If the Fuser Temperature is below 100 C at start of warm up then warm up finishes when the Fuser temperature reaches standby temperature Fuser Trouble U4 Error Code There are five major causes of a U4 error Warm up failure Fuser warm
307. sist replace the System Controller PWB REP 9 2 Remove and reseat the System Controller PWB If the problems persist replace the Sys tem Controller PWB REP 8 2 Install a new Print Cartridge Run a test print There is a normal image on the paper YON Remove the Print Cartridge Inspect the Metal Grounding Contacts on the Print Cartridge Side Guide The Metal Grounding Contacts are intact and is free of contamination YON Reform or clean the Metal Grounding Contacts so they make better contact with the drum shaft or replace the Print Cartridge Side Guide REP 7 5 Image Quality Repair Analysis Procedures 0212000 Initial Issue IQ RAP 1 IQ RAP 2 332 DocuPrint N2125 B Check lor connu between the Metal Grounding Contacts and the printer tame There IQ RAP 3 Spots is continuity between thn Grounding Contacts and the printer trame is cont There are spots of toner randomly scattered onthe page Figure 1 Replace the Print Cartridge Side Guide REP 7 5 The BTR is YN Replace the BTR Assembly REP 7 1 and is free of contamination Generate a Test Print and switch OFF the printer power halfway through the print cycle Carefully remove the Print Cartridge and inspect the toner image on the drum just before the transfer area BTR The image on the drum is completely developed with sharp black easily read areas YN Go to RAP 43 Replace in order until the problem is solved HVPS PWB REP 9
308. sity is uniform YN Go to IQ RAP 12 Uneven Density The prints are too faint YN The prints are black YN Goto IQ RAP 11 Background Go to IQ RAP 10 Black Prints Go to IQ RAP 1 Light Prints The Solid Area Density is within specifications Go to Background 180 82P520 SIR 49501 70 OUTPUT REFERENCE N2125 3301 Figure 1 Output Reference Document Background Procedure Compare the Test Prints with the Visual Scale 82P284 The worst background area an any print should be at or below area 3 on the rating guide Figure 1 The print is at the area 3 or below YN The background is uniform YN Go to IQ RAP 12 Uneven Density Goto IQ RAP 11 Background The printed test patterns meet the Background specification Go to Deletions Net25 3908 Figure 1 Rating Guide Image Quality Repair Analysis Procedures Solid Area Density Background 02 2000 Initial Issue 36 DocuPrint N2125 Deletions Line Band Spots Procedure Inspect Test Prints for the presence of deletions missing image There should be no deletions with a diameter larger than 0 5 mm visible on test prints Figure 1 There are deletions on the test prints There are vertical in direction of paper movement Line Band deletions present There are Horizontal in direction of scanning Line Band Deletions present YN There are Spot Deletions present YN Go to Fusing Go
309. ss Enter The OCT Motor runs YN Switch the printer power of Remove the Left Interface Cover REP 1 1 Left Cover REP 12 and the Left Pate Assembly REP 1 11 Enter diagnostics and select Component Test Scroll OCT Motor Operation On the Print Engine Controller PW check the volt age between PASS pin 6 and frame ground Press Enter The voltage drops from 33VDC to 0 5VDC when the Enter Key is pressed YN Petit Engine one PWB REP 23 Switch the printer power off Remove the OCT from the printer REP 10 1 Turn the OCT up side down Disconnect P J210 from the OCT PWB Check the resistance between pins 4 pins 1 and 6 pins 2 and 3 and pins 2 and 5 on the disconnected plug reac ings are 70 10 ohms YN Replace the OCT Motor REP 10 8 Replace the OCT PWB REP 10 7 Open the OCT Rear Cover Check the OCT rollers The OCT Rollers are rotating smoothly Repair or replace the OCT Rollers as necessary REP 10 14 REP 10 15 A Swich the printer power Remove the OCT REP 10 1 Open the printer rear cover and chock the movament of the Ext Gate The Exit Gate moves freely In both directions when pressed und VON Repair or replace the Ext Gale as necessary REP 64 Reinstall the OCT Each time the printers rear cover or front cover is opened and closed with power applied the printer performs a reset At the completion of the reset the Exit Gate tog gles between fully open and fully
310. st Scroll to Confirm MBF Feed Solenoid and press Enter You can hear the MBF Feed Solenoid energize YN Switch the printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 4 2 and the Left Plate Assembly REP 1 11 Disconnect P J23 on the Print Engine Con troller PWB Measure the resistance between pins 6 and 12 on the disconnected plug The resistance is approximately 75 to 95 ohms YN Remove the Front Cover REP 1 6 and the Left Front Cover REP 1 7 Disconnect PIJ44 from the Connector PWB Measure the resistance between pins 1 and 2 on the disconnected plug The resistance is approximately 75 to 95 ohms YN Replace the MBF Feed Solenoid REP 4 9 Replace the Connector PWB REP 9 7 Reconnect P J28 Switch the printer power on Check the voltage between P J23 pin 6 and frame ground The voltage is 24VDC YN tra Pir Engine Goch REP 23 Enter Diagnostics and select Component Test Scrall to Confirm MBF Feed Solenoid Check the voltage between P J23 pin 12 and frame ground Press Enter The voltage drops from 24VDC to 0 0VDC when you press Enter YN Replace the Print Engine Controller PWB REP 9 3 Replace the MBF Feed Solenoid REP 4 5 Switch the printer power off Open the Front Cover and remove the Print Cartridge With the Front Cover open cheat the Front Cover Interlock Enter Diagnostics and select Component Test Scroll to Main Motor and press Enter Scroll to Confirm MBF
311. st Scroll to Sensor Input test and press Enter Actuate and deactuate the OCT Stack Full Sensor Actuator The number on the LCD incre ments each time you press and release the actuator Y N Visually inspect the Stack Full Sensor Actuator The actuator moves freely and good condition not broken or damaged YN Replace the Stack Full Actuator REP 10 12 Switch the printer power off Remove the Lett interface Cover REP 1 1 Left Cover REP 12 and Left Plate REP 1 11 Disconnect P J35 from the Print Engine Controller PWB Switch the printer power on On the Print Engine Controller PWB measure the voltage between P35 pin 2 and frame ground The voltage is 3 3VDC YN On the Print Engine Controller PWB measure the voltage between P J28 pin 10 and frame ground The voltage is 3 3VDC YN Replace the LVPS REP 9 5 Replace the Print Engine Controller PWB REP 9 3 Switch the printer power off Reconnect P J35 to the Print Engine Controller PWB Switch the printer power on On the Print Engine Controller PWB measure the voltage between PIJ35 pin 2 and frame ground There is 3 3VDC between P J35 pin 2 and frame ground when the Stack Full Sensor is deactuated and 0 0VDC when actuated YN Replace the Stack Full Sensor REP 10 13 Ifthe problem persists replace the OCT PWB REP 10 7 Replace the Print Engine Controller PWB REP Replace the Print Engine Controller PWB REP RAP 61 OCT Offse
312. sue 430 DocuPrint N2125 REP 4 4 Tray Bottom Assembly Parts List on PL 4 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left Interface Cover Assembly REP 1 1 Remove the Front Cover Assembly REP 1 6 Remove the Left Front Cover REP 1 7 Remove the MBF Chute Assembly REP 4 1 Remove the MBF Feed Roll Assembly REP 4 2 Disconnect the hook that secures the Bottom Tray Assembly to the MBF Chute Assembly Figure 1 Use a small screwdriver to carefully lft the locking tab and remove the Bottom Tray Assembly Figure 2 Remove the right Exit Bearing Figure 2 Figure 1 Bottom Tray Assembly Chute Fa Figure 2 Bottom Tray Assembly Replacement Reinstall the components in the reverse order NOTE After replacing the tray bottom ensure that the sleeves on the Tray Bottom fit over the two posts on the MBF frame see A Figure 1 Initial Issue DocuPrint N2125 431 02 2000 Repair Adjustment REP 4 4 REP 4 5 MBF No Paper Actuator Parts List on PL 4 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove Tray 1 Remove the Left interface Cover Assembly REP 1 1 Remove the Front Cover Assembly REP 1 6 Remove the Lett Front Cover REP 1 7 Remove the MBF Chute Assembly REP 4 1 Remove the MBF Feed Roll Assembly REP 4 2 Remove the Bottom Tray Assembly REP 4 4 Lift the MBF No Paper Actuato
313. t REP 10 8 REP 10 9 REP 10 10 Direction Solenoid Parts List on PL 14 2 Removal WARNING Switch off the power and disconnect the Power Cord Remove the Offset Catch Tray REP 10 1 Remove the Exit Tray Extension REP 10 2 Remove the Exit Tray REP 10 3 Turn the Offset Catch Tray upside down Remove the Lower Cover REP 10 5 Hold open the Rear Cover Remove the Inner Exit Chute Assembly REP 10 5 Disconnect P J228 from the Direction Solenoid Figure 1 Remove the two screws that secure the solenoid to the Inner Exit Chute Assembly Figure 1 Remove the Solenoid Figure 1 Direction Solenoid Replacement 1 Reinstall the components in the reverse order REP 10 11 Exit Sensor Assembly Parts List on PL 14 2 Removal WARNING Switch off the power and disconnect the Power Cord Remove the Offset Catch Tray REP 10 1 Remove the Exit Tray Extension REP 10 2 Remove the Exit Tray REP 10 3 the Offset Catch Tray upside down Remove the Lower Cover REP 10 5 Hold open the Rear Cover Remove the Inner Exit Chute Assembly REP 10 5 Release the four locking tabs and remove the sensor Figure 1 Disconnect P J227 from the Exit Sensor Assembly Figure 1 Figure 1 Exit Sensor Assembly Replacement 1 Reinstall the components in the reverse order Repair Adjustment REP 10 10 REP 10 11 02 2000 il Issue DocuPrint N2125 REP 10 12 Stack Full Sensor Actuator Parts List on PL 14 2 Removal WARNI
314. t Cover REP 11 2 Remove the 550 Sheet Feeder Left Cover REP 11 3 Remove 550 Sheet Feeder Gear Bracket Assembly REP 11 4 Remove the Top Plate REP 11 5 Remove the 550 Sheet Feeder Drive Assembly REP 11 5 Disconnect P J amp 4 65 P J66 and P J67 on the Feeder PWB Figure 1 Remove the four screws that secure the Feeder PWB and remove the PWB Figure 1 2125_4218 pad Figure 1 Feeder PWB Initial Issue DocuPrint N2125 0212000 Repair Adjustment 483 REP 11 8 REP 11 9 Replacement 1 Reinstall the components in the reverse order REP 11 10 Feed Clutch Assembly Parts List on PL 11 2 Removal WARNING Switch off the power and disconnect the Power Cord Remove the printer from the 550 Sheet Feeder REP 11 1 Remove Tray 2 trom the Feeder Remove the 550 Sheet Feeder Right Cover REP 11 2 Remove the 550 Sheet Feeder Left Cover REP 11 3 Remove 550 Sheet Feeder Gear Bracket Assembly REP 11 4 Remove the Top Plate REP 11 5 Remove the 550 Sheet Feeder Drive Assembly REP 11 5 Remove the four screws that secure the bracket to the Paper Feeder Figure 1 Remove the Gear 3 and 2 from the shaft the Paper Feeder Figure 1 Remove the E ring that secures the Feed Clutch Assembly to the feeder Figure 2 Remove the Feed Clutch Figure 2 Disconnect P J651 From the Feed Clutch Figure 2 Figure 1 Bracket Repair Adjustment REP 11 9 REP 11 10 02 2000 484 Initi
315. t Operation Not Performed Procedure Manually move the Offset Assembly fram one side to the other The Offset Assembly moves smoothly YN Replace the Offset Assembly REP 10 14 Enter Diagnostics and select Component Test Scroll to OCT Offset Motor and press Enter 4 The Offset Assembly shifts left then returns right YN Switch the printer power off Remove the Inner Exit Chute Assembly REP 10 6 Discon nect P J229 from the OCT PWB On the disconnected plug measure the resistance between pins 1 and 3 pins 1 and 5 pins 2 and 4 and between pins 2 and 6 The resis tance is 245 to 265 ohms YON Replace the OCT Offset Motor REP 10 17 Replace the OCT PWB REP 10 7 It the problem persists replace the Print Engine Con troller PWB REP 9 3 Replace the Print Engine Controller PWB REP 9 3 Initial Issue DocuPrint N2125 02 2000 2 51 Analysis Procedures RAP 60 RAP 61 Status Indicator Repair Analysis Procedures 02 2000 Initial Issue RAP 60 RAP 61 252 DocuPrint N2125 RAP 62 Envelope Feeder Not Recognized Procedure Switch the Printer power off Remove and reinstall the envelope feeder Switch the Printer power on Run a Contig Sheet The Envelope Feeder is listed on the Contig Sheet Switch the Printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 4 2 and the Left Plate Assembly REP 1 11 Switch the Printer power on Check the voltage on the Print Engine Controller PWB
316. t if the printer is powered on while pressing the Online and Enter keys Figure 12 Print Menu Reset Menu Press Menu Down or Menu Up to enter this menu system and scroll through the menus Scroll through the items with Up or Item Down keys Use the Enter key to accept item or execute a function such as set a language or print a page or cancel a job Menu Keys item Keys Job Menu Password Menu Menu PCL Menu System Menu Parallel Menu Serial Menu USB Menu Ethernet Menu Token Ring Menu Novell Menu Print Menu Reset Menu Factory Defaults Network Defaults Demo Mode Delete Jobs Disk Init Disk Format Flash Format T Menus marked with only appear if certain options are installed See Menu for details of each menu The Reset Menu is only visible in the menu list if the printer is powered on while pressing the Online and Enter e 3 Figure 13 Reset Menu Initial Issue DocuPrint N2125 02 2000 General Procedures Information GP 4 1 General Procedures Information 02 2000 Initial Issue GP 4 1 6 58 DocuPrint N2125 GP 5 1 Supplemental Tools Supplies and Hardware Table 1 Supplemental Tools Supplies and Hardware Description Part Number Cleaning Cloth treated SPT Cleaning Pads 50054372 ation Swabs EE Disposable Gloves 39P3082 Disposable Plastic Bags 190730231
317. tating Table 1 illustrates the Laser Motor and Laser Diode Control in Various Printer Modes Table 1 Laser Motor and Laser Diode Control in Various Printer Modes Printer Mode Laser Molor and Laser Diode Control Yin The Laser Motor and the Laser Diode are both controlled by the Printer Controller he Laser Motor and the Laser Diode are both controlled by the Printer Controller The Laser Motor and tha Laser Diode are always on Printing Test Mode Diagnostic Mode Printable Area NOTE Edge to edge printing capability Within the 4mm border 4 sides the printer will print any data 6 point Arial or larger Normal Print Area Expanded Print Area gemi UU x4 Y ene d Was dpe bo ri capa Wat ne dv border te Figure 1 Printable Area Laser Trouble U2 Error Code There are three major causes of U2 errors General Procedures Information GP 3 5 GP 3 6 02 2000 634 DocuPrint N2125 Warm up failure SOS signal intervals are longer than the READY reference value during three consecutive samplings of the SOS The actual laser power does not equal the value set in NVRAM Laser speed too low Down Failure SOS signal intervals are longer than the set Down Failure interval after completion of warm up The set Down Failure is a time interval corre sponding to 90 of the rated Laser Motor speed of rotation Laser speed too high Overrun Failure SOS signal intervals are
318. tched on the fuser may be hot Switch the printer power off Remove the Fuser Assembly REP 6 2 Measure the resistance between pins A4 and AS of P272 Figure 1 The resistance is between 7K and 380K ohms depending on the temperature of the fuser YN Replace the Fuser Top Cover REP 6 3 Measure the resistance between pins 3 and 4 of P272 on the Fuser Assembly Figure 1 The resistance is less than 5 ohms Y N Remove the Fuser Heat Rod REP 6 9 Measure the resistance of the Heat Rod The resistance is less than 5 ohms YN Replace the Heat Rod REP 6 9 Replace the Fuser Top Cover REP 6 9 Pin 3 Pin4 pnas PINS PA Pin AS Pin2 P272 Pim Pin2 P272 eus 110 Voit 220 Volt Figure 1 Fuser Connector P272 Reinstall the Fuser Assembly Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Disconnect P J11 from the LVPS PWB Check the resistance between P11 pin 1 and pin 2 There is less than 5 ohms resistance Y N Repair or replace the Fuser Harness Assembly REP 8 3 Reconnect P J11 and disconnect P J27 Measure the resistance between P J27 pins 1 and 2 Figure 1 The resistance is between 7K and 380K ohms depending on the temperature of the fuser YON Repair or replace the Fuser Harness Assembly REP 6 3 Status Indicator Repair Analysis Procedures RAP 30 RAP 31 02 2000 232 DocuPrint N2125 Initial Issue Reconnect P J27 Measure the voltage o
319. ted Measurements Power and signal grounds are connected to frame ground therefore all circuit troubleshooting can be performed using the metal frame chassis as the grounding point If more information is needed to locate connectors or test points refer to section 7 Unless otherwise specified the following voltage tolerances are used within this section Table 1 Table 1 Voltage Measurements Stated Measured 33 VDC HIT 35 VOC 50056 4810 52 240 VOC RATE io 284 VDC 00 voc Less than 05 VDC Initial Issue DocuPrint N2125 02 2000 23 Analysis Procedures Introduction Measurements Status Indicator Repair Analysis Procedures 202000 Initial Issue Introduction Measurements 24 DocuPrint N2125 Error Code Tables Table 1 Error Code Table Generalinto Control Panel Message Fault History Entry Diagnostic Message Error Description Action Tay STE Tay Tis nar detected molor allure Inspect and repair Tray T Power tton Stack Height Sensor Failure Go to RAP 4 Tay 2 Faire 3 Tay Zis nat detected motor allure Inspect and repair Tray 2 Power tton Stack Height Sensor Failure Go to RAP 4 Tay 3 Failure Tay 3s nat detected motor allure Inspect and repair Tray 3 Power oton Stack Height Sensor Failure Go to RAP 4 Load Envelope Rs Faut Enty Aad Paper Emvelope is out of paper Load Paper int Envelope Go to RAP 65
320. ter You can hear the Tray 1 Feed Clutch energize Y N Remove Tray 1 Check the voltage between the lower contact of the Paper Feeder Con nector and frame ground The voltage is 24VDC YN Switch the printer power off Remove tho Left Interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Switch the printer power on the Print Engine Controller PWB check the voltage between P J33 pin 6 and frame ground The voltage is 24VDC YN Replace the Print Engine Controller PWB REP 9 3 Replace the Feeder PWB REP 3 9 On the left side of the Paper Tray measure the resistance between the upper and lower contacts on the Paper Feeder Connector Their is continuity between the two con acts Y N Replace the Paper Feeder Connector REP 2 5 Switch the printer power off Remove the Paper Feeder Assembly REP 3 1 Disconnect PIJ6S from the Feeder PWB Measure the resistance between pins 1 and 4 on the discon nected plug Their is continuity between the two pins YON Replace the Tray 1 Feed Clutch REP 3 8 Replace the Feeder PWB REP 3 9 If the problem persists replace the Size PWB REP 313 Replace the 1 Feed Clutch REP 3 6 If the problem persists replace the Print Engine Controller PWB REP 9 3 Initial Issue DocuPrint N2125 02 2000 237 Analysis Procedures RAP 39 RAP 40 RAP 41 MBF Feed Solenoid Procedure Enter Diagnostics and select Component Te
321. the OCT GP 2 5 for test print If an OCT is not installed follow the Y path Prints were successfully delivered to the Perform RAP as specified by the Error Code Message listed in Table 1 of section 2 Ensure that all normal printer conditions are set i e paper loaded machine in Ready condition internet cable connected Have the customer send a document to the printer The print is successful YN Try a sending a document from a different application The print was successful YN There may be a problem with the print drivers Have the customer contact Xerox Customer Support There may be a problem with the application software Have the customer contact Xerox Customer Support Go to Final Actions Power On Version X XX X X XX XX M T1111 Initializing i Copyright Xerox Corp M M 1996 1999 All Rights Reserved i Y kkkkkkkkkkkkkkkk Ready FIR III III i i Initializing Processing Please Wait i i Ready N2125 1111 Figure 1 Power On iagnostic Sequence Service Call Procedures 02 2000 1 4 16 Initial Issue DocuPrint N2125 1 5 Final Actions Procedure 1 2 Switch the main power of Update the tag matrix as required Reinstall all the covers removed during the service call and complete all required adminis trative tasks Clean the covers and ensure all lab
322. the Sensor actuated YN Check the voltage between P J45 pin 1 and frame ground The 12VDC YN Replace the Print Engine Controller PWB REP voltage is Replace the MBF No Paper Sensor REP 4 8 Replace the Connector PWB REP 9 7 Replace the Print Engine Controller PWB REP It appears that the MBF No Paper Sensor is working correctly If a problem persists replace the Print Engine Controller PWB REP 9 3 RAP 51 Face Up Tray Open E5 Procedure Open the Rear Cover The printer has a Duplex Unit installed YN Replace the Print Engine Controller PWB REP Check the Face Up Tray Sensor Actuator on the Rear Cover The actuator tion YN Replace the Rear Cover REP 1 8 good condi Cheat the Rear Cover Interlock Enter diagnostics and select Component Test Scroll to Sensor Input Test and press Enter Use a piece of paper to block and unblock the Face Up Tray Sen sor The number on the LCD increments each time you block and unblock the sensor YON On the Face Up Tray Sensor check the voltage between pin 1 pin to the rear of the printer and frame ground The voltage is 0 0 with the sensor unblocked and 3 3VDC with the sensor blocked Check the voltage between pin the sensor and frame ground The voltage 12VDC YN Switch the printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Switch the pr
323. the voltage between P J23 Pin 4 and the frame ground The voltage is 0 0VDC N Go to RAP RAP 82 Check the voltage between P J23 Pin 3 and frame ground The voltage is 3 3 with the Envelope Feeder No Paper Sensor de actuated and 0 0VDC with the sensor actu ated N Switch the Printer power off and remove the Envelope Feedar Check for continuity between J418 Envelope Connector Assembly and P J23 Pin 3 on the Print Engine Controller PWB There is continuity between the pins YN Remove the Front Cover REP 1 6 and the Front Left Cover REP 1 7 Check for continuity between P J41 Pin 5 on the Connector PWB and P J23 Pin 3 on the Print Engine Controller PWB There is continuity between the two pins YN Check the Connector Harness Assembly for proper connection and for defective wires Repair or replace if necessary If Harness is in good con dition replace the Connector PWB REP 9 7 Replace the Envelope Connector Assembly REP 4 10 Replace the Envelope Feeder PWB REP 13 3 If the problem persists replace the Envelope Feeder No Paper Sensor REP 13 10 Replace the Print Engine Controller PWB REP Replace the Print Engine Controller PWB REP 9 3 Status Indicator Repair Analysis Procedures RAP 64 RAP 65 254 02 2000 Initial Issue DocuPrint N2125 RAP 66 Envelope Feeder Jam E2 Envelopes early of late to the Registration Sensor Procedure Remove all envelopes Check the Envelope Feeder and Print
324. to IQ RAP 6 Spot Deletions Go to IQ RAP 4 Horizontal Deletions Go to IQ RAP 5 Vertical Deletions Printe Irac e Printed Printad Image Printed In age Printed Image Fusing Procedure NOTE The operating environment of the printer is from 41 F 5 Celsius at 15 relative humidity to 95 F 35 Celsius at 85 relative humidity The fusing performance of the printer will vary according to the environment A cold environment will affect the warm up time The weight lb gsm of the paper or transparency wil affect the fusing of prints High humidity wil have an adverso affect on the fusing of prints Check the fusing quality of the image of a System Controller Test Print Figure 1 Rub the image three times with soft cloth or tissue The image should not it of of the surface of the print The fusing quality of the image meets the speci YN o ina 7 untae ne Go to Resolution N2125 3303 Figure 1 Line Band or Spot Deletions NIUS 3308 Figure 1 Fusing Quali Initial Issue PUN Image Quality Repair Analysis Procedures DocuPrint N2125 37 Deletions Fusing Resolution Procedure Refer to Figure 1 Observe the three image areas on several System Controller Test Patterns Check the resolution of the images in each of the areas Arrow 1 The two pixel vertical horizontal and diagonal lines should be clear and continuous The diag ines might
325. to RAP 56 Duplex Jams Paper Jam ETE ETZ Duplex Jam T Paper Tate off Duplex Sensor Open Rear Cover Open Rear Cover 2 Duplex Sensor on at power up Remove Duplex Unit Clear Paper Path Go to RAP 56 Duplex Jama Paper Jam ETS ET Duplex Jam Paper late to Registration Sensor Open Rear Cover Open Rear Cover from Duplex Sensor Remove Duplex Unit Clear Paper Path Go to RAP 5 Duplex Uni For EST EST Duplex Duplex module removed while power Reinstall Duplex Module Removed is on Go to RAP 55 Ortes Ein Fa Esz ESA OCT Fa OCT removed wile power ls on Switch Power OF Power Ofl On Remove and Reinstall OCT Switch Power On Go to RAP 58 Envelope Foder Fator ESE EF EEF Uni Fal Envelope Feeder module removed Reinstall Envelope Feeder Removed while power on Go to RAP 62 Tay 28 Faure ETT ETT Way 23 Fal ays 273 disconnected afier power Reinstall Ways 273 Power Ofton on RAP 54 Initial Issue 272000 Status Indicator Repair Analysis Procedures DocuPrint 2125 27 Error Code Tables Table 1 Error Code Table General Into Control Panel Message Fault History Entry Diagnostic Message Error Description Action Paper Size Jam PSEA CS Paper Size Error There a confici between the size of Correct ihe mismatch Open Rear Gover the paper which is detected by the Open Rear Cover Size Switches and the length of Go to RAP 22 paper the printer detects by the length of time the
326. to pick the paper from the Paper Tray Assembly and feed it to the Turn Roll Assem bly To ensure this task the Nudger Support Assembly acts as the actuator for the Stack Height Sensor Control by swivelling itself up and down synchronizing the height of the stacked paper Turn Roll Assembly This Assembly feeds the paper to the Standard Feeder Assembly path The mechanical activity is same as the Turn Clutch Assembly Feeder PWB Connective interface between the Sensors Clutches and Motor and the Size Option PWB This PWB also monitors the No Paper Sensor which detects the out of paper condition of the Paper Tray Size Option PWB Controls the Option Feeder Assembly the interface function between the Size Option PWBs the Feeder PWB and the Print Engine Controller PWB No Paper Sensor Detects the cut of paper of the Paper Tray Assembly No Paper Actuator Actuates the No Paper Sensor When out of paper this actuator wil swivel down and shield the No Paper Sensor Low Paper Sensor Detects the state of low paper of the Paper Tray Assembly Low paper detect is at approxi mately 50 30 sheets of paper Stack Height Sensor Detects the state of the paper level the position of the top sheet of paper This sensor is actu ated by the Nudger Support Assembly Switch Mounted on the Feeder PWB and detects when the Paper Tray Assembly is out of paper Size OPT PWB Size Switch Turn Clutch Assy Feed Clutch
327. tom Roll Assembly shaft Figure 2 Slide the Bottom Roll Assembly and the right bearing to the left until free of the mounting Figure 2 Raise the right end of the shaft and remove Figure 3 t g 2125 4283 Figure 1 Torque Clutch Figure 3 Bottom Roll Assembly Replacement 1 Reinstall the components in the reverse order Repair Adjustment p n Issue REP 13 14 4 110 DocuPrint N2125 REP 13 15 Feed Roll Assembly 1 Parts List on PL 12 2 Removal WARNING Switch off the power and disconnect the Power Cord 1 2 4 5 7 10 Remove the Envelope Feeder from the printer Remove the Bottom Cover REP 13 1 Remove the Top Chute REP 13 2 Remove the No Paper Actuator REP 13 9 Remove the Envelope Feeder PWB REP 13 3 Remove the Gear Cover REP 13 11 Remove the Feed Clutch REP 13 12 Remove the Torque Clutch Gear and Bearing from the Roll Feed shaft Figure 1 Slide the Feed Roll Shaft and bearing to the left until it is free of the right mounting Figure 2 Lift the right end and remove assembly from the feed belts Figure 2 If replacing the feeder rolls remove the rolls from the assembly Figure 3 Figure 1 Bearing Figure 2 Feed Roll Shaft E Figure 3 Feed Roll Assembly 1 Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 02 2000 Repair Adjustment 13 15 REP 13
328. tor Assembly Exit Gear 17 47 Exit Gear 32 Exit Ground Spring Bearing Kit quantity 6 of item 6 Exit Chute Assembly with 1 16 17 19 24 848 26 with 1 17 amp 19 24 2 S 600K79660 Hardware Kit Includes Screw Initial Issue 0212000 Parts list DocuPrint N2125 543 PL 7 1 PL 8 1 Drive amp Xerographics Hem Part Description 1 113800445 Print Cartridge XC 10K 113800446 Print Cartridge XC 15K 20 0 Print Cartridge Sensor Harness Assembly J25 J251 P O item 15 xx Arrow Label 32K94111 Print Cartridge Top Guide Assembly 5 Spring P O item 15 6 Print Cartridge Sensor Assembly P O item 15 7 16246822 Laser Harness Assembly J21 J211 J212 J213 8 VDO Harness Assembly J22 223 P O item 7 9 62K09600 Laser Assembly 10 Print Cartridge Side Guide Assembly R with 11 12 Print Cartridge Side Guide 12 Spring Clip 13 T7KBS220 Gear Assembly 14 127K27791 Main Motor Assembly 15 32K94130 Cartridge Sensor Kit with 2 5 6 5 60079660 Hardware Kit Includes Screw Initial Issue 022000 Parts list DocuPrint 2125 5 14 PL 8 1 PL 9 1 Frame amp Size Sensor Hem Part 1 2 3 4 5 B 7 akam 8 9 10 12 13 162K47001 19 160K52771 20 162K48420 2 eee 22 802K09970 Description Left Plate Assembly Clamp Press Left Clamp Press Interface Clamp Lower B Elec Box Lower A Elec Box Fan Assembly Duct Edge
329. troller Board PWPM failure Go to RAP 42 joooT DMA 5 System Controller DMA failure Go to RAP 42 0007 g System controller parallel port failure USB por failure E Net Port Failure Replace System Controller PWB REP 9 2 00 T g System Controller handshake failure Remove and reinstall the System Controller PWB REP 9 2 Replace the System Controller PWB REP 92 Replace the Print Engine Controller PWB REP 9 3 0 DISK g ard disk fore Format Hard Disk see Reset Menu GP 4 1 Replace the Hard Disk PL 10 1 Replace the System Controller PWB REP 9 2 DIM T DIM Board 1 allure Go lo RAP 45 TOZ DIME DIMM board 2 talure Go io RAP 45 103 DS 2 DIMM Board 3 allure Go to RAP 47 2000 XIE RANT E stem Controller Xerox Image Enhanced PWPW Replace the System Controller PWB REP 9 2 jxwe 15 stem Controller Xerox Image Enhanced PWPN fare Replace the System Controller PWB REP 9 2 2020 XE VONT 5 stem Controller Xerox Image Enhanced VOMA falura Replace the System Controller PWB REP 9 2 3000 Token Ring E Replace the appropriate network card PL 10 1 8000 Serial Replace System Controller PWB REP 92 3000 E Net 10 Base 2 S000 Memory None Memory size not large enough To Toad the system sofware Download Data Replace System Controller PWB REP 9 2 Initial Issue 272000 Status Indicator Repair Analysis Procedures DocuPrint 2125 29 Error Code Tables Status Indicator Repair An
330. uPrint N2125 02 2000 613 General Procedures Information GP 1 9 GP 1 10 GP 1 11 Offsetting Catch Tray Assembly Specifications Dimension and Weight Table 1 Table 1 Offsetting Catch Tray Assembly Specification Dimension and Weight LE GP 1 12 Envelope Feeder Specifications Dimension and Weight Table 1 Table 1 Envelope Feeder Specifications Dimension and Weight Depth Height OT Wiam Depth Height Weight 22m eR SSMS mE 25 Kg SSS 272 ____ 260 10 25 __ 7 men 0267 2 369 422mm 168 147 6 8 117mm 4 67 i 266mm 11 5 y 421mm 16 57 172mm 675 260 1024 e101 272mm 10 77 313mm 12 37 Figure 1 OCT Dimensions e102 Power Supply The 24VDC and 3 3VDC are supplied from the LVPS PWB through the Print Engine Control ler PWB to the General Procedures Information Figure 1 Envelope Feeder Dimensions Power Supply The 24VDC and 3 3VDC are supplied from the PWB through the Print Engine Control ler PWB and Connector PWB GP 1 11 GP 1 12 614 02 2000 Initial Issue DocuPrint N2125 GP 2 1 Power On Diagnostics The System Controller PWB has the following LEDs Table 1 Figure 1 Table 1 Controller LEDs GP 2 2 Controller ESS Diagnostics The System Controller PWB provides the following diagnostic capability Configuration Sheet includ
331. uPrint N2125 Service Manual is the primary document used for repairing and maintaining the DocuPrint N2125 Laser Printer This manual contains Service Call Procedures Diagnostic Procedures General Information Repair Analysis Procedures Image Quality Analysis Procedures Wiring Data and Parts Lists that will enable the Service Representative to repair DocuPrint 2125 failures Table of Contents Tital Issue 02 2000 DocuPrint N2125 Organiza Section 7 Wiring Data This manual is divided into seven sections The title and description of This section contains sensor connector and PWB location drawings each section of the manual is as follows power distribution diagrams interconect diagrams interconnect diagrams and pin assignment information This information is not Section 1 Service Call Procedures specific to individual procedures but is provided for general reference This section is used to identify a suspected problem It contains Machine Orientation Call Flow Initial Actions Corrective Actions and Final Actions This part of the service manual should always be used to start the service call Section 2 Repair Analysis Procedures This section is used to isolate and identify problems to a faulty component or subassembly It contains the introduction display message table error code tables and the Repair Analysis Procedures RAPS Section 3 Image Quality This section contains image quality repai
332. uated after being deac reaches the registration postion the second side of the paper is already face up Then the tuated the Fan runs at High Speed for one second then switches to Low Speed printer starts to print the second side of the paper and transfers the completed duplex sheet to the Output Tray During duplexing to ensure proper collation of the output documents even sides are printed first Cassio Food MEF Feed Tum Rol Assy x Registration Rois zm Drum BTR T Fuser Assembly vi Exit Assembly coup Lagona Fr run One cos pios Duplex Assy gt second an Bath ds Output Ta OO S Figure 1 The Duplex Assembly Paper Path Initial Issue 022000 General Procedures Information DocuPrint N2125 637 GP 3 9 GP 3 10 Rol Assy Ext Pinch Rol Ber Fol Assy Mag Roll Drum Pinch Pol Metal Regi Fol Cleaning Blade Fubber Regi Pal Pinch Fol MBF Rol Assy Pol Assy Face Up Chute Assy Heat Roll Pressure Rot Louer Bottom Chute Pear Roll Assy Rot Assy Dotack Saw Fol Assy of he Miate Assy Casset Assy Front Rol Assy Fol Assy ofthe Feeder Assy CST Chute Synchronous Ben 6008 Figure 2 The Duplex Paper Path Drive Flow The Duplex Drive Assembly generates the mechanical energy needed to run the Duplex Unit Figure 3 57 gt 7 M Was m s ER jure 3 The Drive
333. ue DocuPrint N2125 REP 12 11 Front Roll Assembly Parts List on PL 13 2 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the Duplex Assembly REP 12 1 2 Release the tabs and open the Upper Chute Assembly Figure 1 3 Release the locking tab and remove the Front Belt Stopper Figure 1 4 Remove the Synchronous Belt from the Pulley REP 12 12 5 Remove the Drive Gear Figure 1 6 Use a small screwdriver to release the left and right bearings Figure 1 7 Lift the Roll Assembly and move it to the left until the right end is free Figure 2 8 Remove the Front Roll Assembly Figure 2 Figure 2 Middle Roll Assembly Replacement 1 Reinstall the components in the reverse order Figure 1 Locking Tab and Front Belt Stopper Initial Issue 0212000 Repair Adjustment DocuPrint N2125 4 99 REP 12 10 REP 12 11 REP 12 12 Synchronous Belt Parts List on PL 13 2 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the Duplex Assembly REP 12 1 2 Remove the Drive Cover REP 12 5 3 Remove the Front Belt Stopper Figure 1 4 Remove the Synchronous Belt from the pulleys Figure 1 Figure 2 Front Roll Assembly Replacement 1 Reinstall the components in the reverse order Figure 1 Synchronous Belt Replacement 1 Reinstall the components in the reverse order Repair Adjustment 0212000 Initial Issue REP 12 11 REP 12 12 4 100
334. up does not complete within specified seconds after start ing Low Trouble temperature The Fuser temperature drops to the Low Trouble temperature approximately current control temperature minus approximately 25 C High Trouble temperature The Fuser temperature rises to the High Trouble temperature approximately current control temperature plus approximately 35 C The Thermistor circuit opened STS failure The Heat Rod remains on for at least ten seconds after warm up has pleted Power Shutoff to the Fuser There are eight reasons that the printer shuts off AC power to the Fuser Fuser Failure U4 Paper jam Open Front Cover Assembly Laser failure U2 CPU or NVRAM problem 06 Main Motor Assembly problem U1 Fan problem U5 Initial Issue DocuPrint N2125 General Procedures Information GP 3 6 GP 3 7 FUSER PAUSE command issued Fuser Temperature Cycling Table 1 Table 1 Fuser Temperature Cycling Temperature Name Temperature Value High Trouble Temperature 35 C Approximately 215 C Standby temperature approximately Fuser Of Temperature Fuser control temperature 7 0 C Fuser Control Temperature NVRAM Code 09 08 Standby temperature 180 C Running temperature 180 C Fuser On Temperature Fuser conver temperature 2 C Low Trouble Temperature Approximately 155 Standby temperature approximately 25
335. ure 1 Static Eliminator Assembly Initial Issue 0212000 Repair Adjustment DocuPrint N2125 449 REP 6 8 REP 6 9 Fuser Upper Cover Assembly Heat Rod Parts List on PL 6 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Fuser Assembly REP 62 2 Disconnect P J274 from the left end of the Fuser Assembly Figure 1 205r RERO N 3 Remove the four screws securing the right and left end cover on the Fuser Assembly Fig ure 1 4 Remove both covers while carefully disengaging the wiring harness on each end Figure 1 NOTE The Heat Rod must be removed before the Upper Cover Assembly to avoid break age 5 _ Invert the Fuser Assembly to access the Fuser Heat Rod Figure 2 6 Remove the three screws securing the Fuser Heat Rod and Harness Figure 2 NOTE Avoid touching the glass rod with your fingers from your skin will contaminate and shorten the life of the Heat Rod Figure 2 Fuser Heat Rod 7 Carefully remove the Heat Rod by lifting the right end sliding it out to the right side of the Heat Roll Figure 3 8 Return the Fuser Assembly to its right side up position Figure 4 9 Remove the four screws and the Fuser Upper Cover Figure 4 2 2d EX A 2125 4299 a Figure 1 Fuser Assembly 2125 4302 Figure 4 Fuser Upper Cover Replacement 1 Reinstall the components in the reverse order Repair Adjustment REP 6 9 02120
336. ure 3 Block Diagram Figure 4 8 Figure 5 Print Engine Controller PWB lt gt LVPS PWB and Fuser Assembly Figure 7 Table 2 LVPS PWB lt gt Fan Assembly Front Switch Interlock Assembly SVDC PWB and System Controller PWB Figure 8 Table 3 Print Engine Controller PWB lt gt HVPS PWB lt gt BTR Print Cartridge and Fuser Assembly Figure 9 Table 4 Table 5 Print Engine Controller PWB lt gt Fuser Assembly Figure 10 Table 6 Print Engine Controller PWB lt gt Exit Sensor and Rear Interlock Switch Figure 11 Table 7 Print Engine Controller PWB lt gt Size 1 PWB lt gt Feeder PWB lt gt Low Paper Sensor Stack Height Sensor Feed Clutch Assembly Turn Clutch Assembly and Motor Assembly Figure 12 Table 8 Table 9 Print Engine Controller PWB lt gt Main Motor Assembly Exit Motor Assembly and Print Cartridge Sensor Assembly Figure 13 Table 10 Print Engine Controller PWB lt gt Connector PWB lt gt Paper Set Sensor Registration Sensor Registration Clutch Toner Sensor Pick Up Solenoid Figure 14 Table 11 Print Engine Controller PWB lt gt Laser Assembly Figure 15 Table 12 System Controller PWB lt gt Control Panel Figure 16 Table 13 Location of Pid Connectors Use the P J table Table 1 and the PA Map Figure 1 and Figure 2 to locate a specific Pid connector within the Base Engine Locate the P J connector number in the first column of the table Locate th
337. ure 3 the Motor Assembly Drive generates the mechanical power needed to run the Mid OCT Roll Assembly and Exit Roll Assembly The Offset Motor Assembly generates the drive power to move the Offset Roll Assembly in alternating directions Ext Rol Assy 2 Ext OCT Sensor Assy Ent al ay Oct Rot Pinch OCT Ent Md OCT Roll oT Pi Rol Rol Assy Print Cartridge Pinch Pal n FN Rol Asoy Dram Pinch Roll vee cage Pe al Cleaning Blade Maz Rol Assy Meta Reg Fol Pree Ma ne ee MBF Rol Ay ECT Met Rot Assy Rubber Reg Rol Pressure Rot Bm Hatt Fuser assy Futter Reg Pe Pree ok Tum Roll Assy ER Pol ey Fuser tony Tan Pot Ay Pon assy 0055 Rate Figure 2 The OCT Paper Path Figure 3 OCT Drive Flow Function of Major Components Figure 4 and Figure 5 show the major components of the Offset Catch Tray Motor Assembly Drive Drives the Mid OCT Roll Assembly and the Exit Roll Assembly Offset Motor Assembly Shifts the Offset Roll Assembly Full Stack Sensor and Actuator Full Stack Detects when the stacking of the Tray Exit exceeds 500 sheets of paper oct PWE General Procedures Information 202000 Initial Issue GP 3 11 GP 3 12 642 DocuPrint N2125 Controls OCT operations Offset Roll Assembly Drives printed pages into the OCT Tray offsetting each from the normal position OCT Exit Sensor Assembly Located between the Mid OCT Roll Assembly and the Exit Roll
338. wer off Reinstall the removed options one at a time switching on the power and checking the voltages between the pins listed in Table 1 and frame ground after each component is installed Replace the option just installed if the voltage fails After all the options are reinstalled the LCD display is still erratic YN Problem solved Return to Initial Actions and restart Replace the Control Panel Assembly PL 1 1 Ifthe problem persists replace the System Con troller PWB REP 9 2 Status Indicator Repair Analysis Procedures RAP 25 02 2000 mni Issue DocuPrint N2125 RAP 26 Inoperative Keypad Control Panel is nat operative Procedure Enter Diagnostics and select the Component Test Scroll to Sensor Input test and press Enter 4 The printer enters the Diagnostic Mode to the Sensor Input Level Disconnect 18 on the System Controller PWB Measure the voltages listed in Table 1 between P18 on the System Controller PWB and frame ground Table 1 Keypad Voltage S3 VDC RES TA VDC KES EL TA VDS 53 VDC o DG Pin All the voltages are correct RAP 27 Erratic Printer Operation Procedure Disconnect all host cables Enter diagnostics and select Test Print Run 15 to 20 test prints The printer generates test prints YN Switch the printer power off Disconnect PA PN1 from the LVPS Assembly Switch the printer power on Check the voltage betwee
339. with fresh dry paper RAP 11 Paper Jam Exit E4 There is a paper jam at the Exit Sensor Procedure Check the paper in the paper trays Ensure the paper is installed correctly and the end guide touches the rear of the paper stack The paper is within specification If Custom Mode is used ensure the settings are correct All settings are correct and the paper in specifica tion YN Install fresh paper that is within specification or correct settings Check the paper path for contamination paper or other obstructions The paper clean and free of obstructions YN Remove obstructions and clean components as necessary path is Enter Diagnostics and select Test Print Run 25 prints from Tray 1 When the error code is displayed there is paper on the Exit Sensor YN Open the Rear Cover and the Fuser Access Cover Check the Exit Sensor Actuator The actuator moves freely and returns to the home position when released YN Repair actuator or replace the Fuser Assembly REP 6 2 Enter diagnostics and select Component Test Scroll to Sensor Input test and press Enter Open the Fuser Access Cover and use a piece of paper to block and unblock the Exit Sensor The number on the LCD increments each time you press and release the actuator YN Goto RAP 48 Replace Print Engine Controller PWB REP 9 3 Open the Rear Cover and check the Face Up Chute Assembly for contamination or obstruc tions The chute assembly is c
340. wo rear tabs can be removed from the Feeder Figure 1 REP 13 2 Top Chute Parts List on PL 12 1 Removal WARNING Switch off the power and disconnect the Power Cord Remove the Envelope Feeder trom the printer Remove the Bottom Cover REP 15 1 Remove the four screws that secure the Top Chute Figure 1 Rotate the feeder unit up and disconnect P J417 from the Exit Sensor Figure 1 Slide the feeder unit to the right and remove it from the Top Chute Figure 1 NOTE Make note of how the Harness Connector is inserted in the Bottom Cover 5 Liftthe Bottom Cover and remove the harness connector from the cover Figure 1 Figure 1 Bottom Cover Replacement 1 Reinstall the components in the reverse order 2125 anas Figure 1 Top Chute Replacement 1 Reinstall the components in the reverse order Initial Issue DocuPrint N2125 0212000 Repair Adjustment 4 103 REP 13 1 REP 13 2 REP 13 3 Envelope Feeder PWB Parts List on PL 12 2 Removal CAUTION These components are susceptible to electrostatic discharge Observe ESD procedures to avoid damage WARNING Switch off the power and disconnect the Power Cord 1 Remove the Envelope Feeder from the printer Remove the Bottom Cover REP 13 1 Remove the Top Chute REP 122 Disconnect 411 Pid 412 P J413 and P J414 from the Feeder PWB Figure 1 Remove the screw that secures the Feeder PWB to the frame Figure 1 2128 4280 Figure 1 Envelope Feeder
341. y 2 to the Tray 1 turn rolls Check for con tamination paper other obstructions The chute is clean and free of obstructions YN Remove obstructions and clean chute Replace paper tray if necessary PL 2 1 Replace Tray 2 Remove tray 3 and place the tray in feeder 1 Place tray 1 in feeder 3 Enter diagnostics and select Test Print Run 20 to 25 test prints from tray 3 All prints completed successfully YN Remove the tray currently in feeder 3 Check the Nudger and Feed Rolls in feeder 3 for contamination and wear The Feed Rolls are clean and in good con YN Replace the Feed Rolls REP 11 11 Check the Tray 3 Turn Roll Assembly Check for obstructions contamination or wear The Turn Rolls are clean and in good condition YN Remove the obstruction clean or replace the Turn Roll Assembly REP 11 8 Replace the Feeder PWB REP 11 9 If the problem persists replace the Size PWB REP 11 19 then the Print Engine Controller REP 9 3 The paper tray currently in feeder 1 appears to be detective Perform RAP 37 to check the tray motor It RAP 37 checks out correctly check the paper tray for contamination obstructions broken or deformed parts Replace the paper tray if necessary PL 2 1 Initial Issue DocuPrint N2125 02 2000 247 RAP 8 RAP 9 System Controller PWB Procedure Switch the printer power off Remove the Lett Interface Cover REP 1 1 Remove al options and host interface cables from the Syst
342. y appear i certain options are installed See Menu Maps for details of each menu 17 The Reset Menu is only visible in the menu iist if the printer is powered while pressing the Online and Enter Vers Auto TR amp E nel 802 2 TR 8025 802 3 E net only SNAP TR SNAP Ethernet I E net Figure 11 Novell Menu Tem Keys item Keys Select which characteris being changed indicated by underline x ty gt 300000000000000 Value Keys Value Kays increment and decrement selected integer p General Procedures Information GP 4 1 02 2000 Initial Issue DocuPrint N2125 Print Menu Press Menu Down or Menu Up to enter this menu system and scroll through the menus Scroll through the items with Up or Item Down keys Use the Enter key to accept or execute a function such as set a language or print a page or cancel a job Menu Keys en Keys Job Menu Password Menu Tray Menu PCL Menu System Menu Parallel Menu Serial Menu USB Menu Ethernet Menu Token Ring Menu Novell Menu Print Menu Reset Menu Newest Fault Config Sheet PCL Demo PCL Font List PS Font List Menu Map Test Print Disk Directory Fault History Display Faults Hex Mode Restart Printer Oldest Fault E iy appear 1 certain options are installed Seo Maps for details of each menu The Reset Menu is only visible in the menu ls
343. y is set to the default value Procedure Install a new Print Cartridge PL 8 1 Run the image quality test print The Test Print output resolution is good YN Replace the following in order until the defective component is found Laser Assembly REP 7 4 then the HVPS PWB REP 9 6 Problem Solved Image Quality Repair Analysis Procedures IQ RAP 17 IQ RAP 18 02 2000 326 Initial Issue DocuPrint N2125 Introduction Covers and Trays REP 1 1 Left Interface Cover Assembly REP 1 2 Left Cover REP 1 3 Option Cover REP 1 4 Top Cover Assembly REP 1 5 Right Cover REP 1 6 Front Cover Assembly REP 1 7 Left Front Cover REP 1 8 Rear Cover Assembly REP 1 9 Rear Face Up Cover Assembly REP 1 10 Interlock Cover REP 1 11 Left Plate Assembly REP 1 12 Plate Handle Tray 1 REP 2 1 Retard Roll Assembly REP 22 Friction Clutch Assembly REP 2 3 Retard Spring REP 2 4 Motor Assembly REP 25 Connector and Sockel Guide Paper Feed Tray 1 REP 3 1 Paper Feeder REP 3 2 Tum Roll Assembly REP 3 3 Tray 1 No Paper Actuator REP 3 4 Stack Height Sensor REP 3 5 Low Paper Sensor REP 3 6 Feed Clutch Assembly REP 3 7 Feeder Assembly REP 3 8 Paper Feed Rolls REP 3 9 Feeder PWB REP 3 10 Feeder Socket REP 3 11 Size Sensor Housing REP 3 12 Size Sensor Actuators REP 3 13 Tray 1 Size PWB REP 3 14 Size Hamess Assembly Paper Feed MBF REP 4 1 MBF Chute Assembly REP 4 2 MBF Feed Roll Assembly REP 4 3 MBF Feed R

Xerox DocuPrint N2125 Network Laser Printer Service Manual

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