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Lexmark Optra Lxn+ Laser Printer

1. 770 795 Class ill 3b Class TES xvi Service Manual 4049 XXX Trademarks Optra and Lexmark are trademarks of Lexmark International Inc registered in the United States and or other countries AppleTalk and LocalTalk are trademarks of Apple Computer Inc registered in the United States and other countries PCL is a registered trademark of the Hewlett Packard Company PCL 5 is Hewlett Packard Company s designation of a set of printer commands language and functions included in its printer products This printer is designed and manufactured by Lexmark International Inc to be compatible with the PCL 5 language This means the printer recognizes PCL 5 commands used in various applications programs and that the printer emulates the functions corresponding to the commands Details relating to compatibility are included in the 4049 Technical Reference manual Other trademarks are the property of their respective owners Notices and Safety Information xvii 4049 XXX Safety Information e This product is designed tested a
2. 4 44 High Capacity Feeder Paper Feed Rollers 4 45 High Capacity Feeder Cover 4 47 Connector Locations 5 1 Major Assembly Locations 5 1 Gear TAN 55 tas dada 14532484 ihnen 5 2 R ETT treia deutes oka ese Ea Goo 5 3 Transfer Roller Housing ad ds ana 943 Engine Board Connectors 5 4 RIF BOUM s uan iud Gore earth 5 6 Board Installation Hardware 5 7 Mirror Motor Fan Cable 5 7 Operator Panel Output Bin Sensor Cable 5 8 Printhead Connector Locations 5 10 Duplex Autoconnect Cable 5 10 Printer Ground Straps 5 11 High Capacity Feeder Board Connectors 5 12 vii 4049 XXX Preventive Maintenance 6 1 Safety Inspection Guide 4 44442444 6 1 Lubrication Specifications 6 1 Scheduled Mechanical Maintenance 6 3 Printhead Window Cleaning Procedure 6 4 Cleaning The Transfer Roller 6 4 EC ee ER 7 1 How To Use This Parts Catalog 7 1 UO Y 7 2 Lower EO SEN REN ou a 7 4 Upper Frame ss ss eeu iii 284 60565424504 7 6 pata 053 mat San Ad 7 8 Paper Feed eg RR RR E EE E S vi 7 10
3. AE xxii Service Manual 4049 XXX Preface This manual is divided into the following chapters e General Information contains a general description of the printer available options and the maintenance approach used to repair it Special tools and test equipment are listed in this chapter e Diagnostic Information contains error code table symptom table and service checks used to isolate failing field replaceable units FRUS e Diagnostic Aids contains tests and checks used to locate or repeat symptoms of printer problems e Repair Information provides instructions for making printer adjustments and removing and installing FRUs e Connector Locations uses illustrations to identify the major components and test points on the printer e Preventive Maintenance contains safety inspection guidelines lubrication specifications and maintenance information to prevent problems and maintain optimum performance Parts Catalog contains illustrations and part numbers for individual FRUs Preface xxili 4049 XXX 1 General Information 1 1 The Optra Laser Printers are designed to attach to IBM compati ble PC s and to most computer networks There are multiple models all with standard PostScript Level 2 emulation and PCL 5 emulatio
4. xvi Korean Laser Notice XVI Trademarks xvii Safety Information us cae 1860 ddp xviii PISIS EE Paru d a n A Uo a xxiii General Information 1 1 Power GONSUMOWON caso crio rebanada 1 2 COIN PP ame me i 1 2 Maintenance Approach 1 3 Tools Required For Service EEN SNE SIE 00005 1 3 Abbreviations eR 1 4 4049 XXX Diagnostic Information 2 1 Pel MEM MERC EE M 2 1 Power On Self Test POST 2 10 Su ARA 2 11 o a ra a a ot 2 12 A MR RR POR OR de 2 12 BIaCK O i oe Se tran iii 2 13 BP ari retat ea mis va Par ad 2 14 Blurred GF Fuzzy Pil va irradia 2 15 Dead Machine scs duca ard ceo eee fab acp massia 2 15 Biel EE 2 16 EE BITED 23 5259 4 a er PTS eet de 2 18 PUSO TEN ass dx ERA QEDITIPIURE TE 2 19 Fuser 920 921 or 922 Error 2 19 Fuser 923 or 924 Error 2 20 ne Sure arg ae ot dace pt do E eode depu qoe 2 20 Horizontal Void or Streak 2 20 LAN deel 4 3 0 ses seais eo aras p REP as 2 21 LIME p ort es Er rT 2 21 Network Card 977 Errors 2 21 Network Wrap Tests sus ur aan na 2 22 Output Bin Sensor essieu chou 2 22 Operator Panel Problem 2 22 Paper Feed Problem
5. Select PRINTER SETUP Select Auto Clean Select On or Off Press Return to return to the Diagnostics mode main menu Auto Clean Frequency 3 3 This can be set from 10 to 255 pages with a default of 50 O O1 PS O N Enter Diagnostics mode Select PRINTER SETUP Select Auto Clean Frequency Select or to display the frequency desired Select Save Press Return to return to the Diagnostics mode main menu 4049 XXX Auto Clean Delay This can be set from 1 to 60 seconds with a default of 1 Enter Diagnostics mode Select PRINTER SETUP Select Auto Clean Delay Select or to display the delay desired Select Save Press Return to return to the Diagnostics mode main menu PAS De Button Test To test the operator panel buttons Enter Diagnostics mode Select HARDWARE TESTS Select Button Test Press each button Closed is displayed until the button is released Then Open is displayed 5 Press Return to return to the Diagnostics mode main menu Charge Roll pe ee IE TE This setting varies the charge roll bias It is used to reduce back ground on the output In general if there is background and the envi ronment is hot and humid change the setting to low if the environment is cool and dry change the setting to high If the back ground is not reduced try changing the setting the other way Enter Diagnostics mode Select PRINTER
6. 4049 XXX Maintenance Kit Count This non displayed counter must be reset after the maintenance kit is replaced to prevent the 80 Scheduled Maintenance message from displaying when the machine is turned on Ch dd e Enter Diagnostics mode Select PAGE COUNTS Select Maintenance Count Select Reset to set the count back to 0 Press Return to return to the Diagnostics mode main menu Memory Tests IN E CE E Enter Diagnostics mode Select HARDWARE TESTS Select Memory Test Select either DRAM or ROM Select Single or Continuous The display will indicate PASSED or FAILED Select CANCEL to stop continuous memory test Press Return to return to Diagnostics mode main menu Page Count To view or set the page count poU TE 5 Enter Diagnostics mode Select PAGE COUNTSI Select Page Count Choose any number between 0000000 and 9999999 by Select ing Next to move the cursor under each digit Select or to select the number you want in each digit Select SAVE to save the page count displayed Paper Feed Tests This test allows you to observe the drive gear train and feed paper through the printer to check for broken gear teeth watch the paper path or check the erase lamps You may want to remove the gear cover before starting this test so you can observe the motor gears Diagnostic Aids 3 10 4049 XXX Note Feeder refers to the Envelope or 100 Shee
7. T m kirjoitin on Yhdysvalloissa luokan 1 laserlaitteiden DHHS 21 CFR Subchapter J m rityksen mukainen ja muualla luokan laserlaitteiden IEC 825 m rityksen mukainen Luokan laserlaitteiden ei katsota olevan vaarallisia k ytt j lle Kirjoittimessa on sis inen luokan lllb 3b 5 milliwatin galliumarsenidilaser joka toimii aaltoalueella 770 795 nanometri Laserj rjestelm ja kirjoitin on suunniteltu siten ett kayttaja ei altistu luokan m rityksi voimakkaammalle s teilylle kirjoittimen normaalin toiminnan kayttajan tekemien huoltotoimien tai muiden huoltotoimien yhteydess VARO Avattaessa ja suojalukitus ohitettaessa olet alttiina n kym tt m lle lasers teilylle Al katso s teeseen VARNING Osynlig laserstr lning n r denna del r ppnad och sp rren r urkopplad Betrakta ej str len Notices and Safety Information xiii 4049 XXX Laser notis Denna skrivare r i USA certifierad att motsvara kraven i DHHS 21 CFR underparagraf 4 f r laserprodukter av Klass I 1 I andra l nder uppfyller skrivaren kraven f r laserprodukter av Klass I enligt kraven i IEC 825 Laserprodukter i Klass I anses ej h lsov dliga Skrivaren har en inbyggd laser av Klass 1110 3b som best r av en laserenhet av gallium arsenid p 5 milliwatt som arbetar i v gl ngdsomr det 770 795 nanometer Lasersystemet och skrivaren r utformade s att det aldrig finns risk f r att nagon person uts tts f r
8. ronments it does not result in a visible difference in the printout In extreme environments with unusual papers this setting may be helpful Do not change this setting unless replacing the transfer roll assembly did not correct the problem Enter Diagnostics mode Select PRINTER SETUP Select Transfer Select Low Medium or High Press Return to return to the Diagnostics mode main menu PURE Wrap Tests The Wrap Tests check the circuits used to communicate with the host computer Note The Parallel wrap test does not test all signals used for bi directional communication Contact Lexmark Technical Support for instructions on running the Parallel Confidence Test To run the Wrap Test 1 Turn the printer off 2 Disconnect the interface cable 3 Install the wrap plug in one of the interface cable connectors Note Install the parallel wrap plug part no 1319128 for the parallel test or install the 25 pin serial wrap plug part no 1329048 for the serial test Enter Diagnostics mode Select HARDWARE TESTS Select Wrap Test Select Parallel for the parallel port or Serial for the 25 pin serial port Select Single or Continuous 9 Select CANCEL to stop continuous pU OQ X aps po Diagnostic Aids 3 16 4049 XXX A Passed message indicates the printer connection to the printer cable connector is good A Failed message indicates a defective RIP board Note Ignore the number di
9. Feeder 100 Sheet Auxiliary Feeder Check for the following paper or envelope jammed in the feed path missing hold down weight adjustable guide out of position feeder cable loose disconnected or plugged in the wrong connector feeder incorrectly installed worn or damaged rollers or gears warped or damaged envelopes used envelopes improperly installed envelope flaps must rest against the paper edge guide envelopes other than 20 or 24 pound used in the Envelope Feeder paper other than 20 or 24 pound used in the 100 sheet auxiliary feeder envelopes interleaved with paper Run the diagnostics Envelope Feed test and make sure the feed magnet is being energized If not check the resistance of the mag net at J10 1 to J10 2 on the feeder cable the resistance should be from 105 Ohms to 155 Ohms If the magnet is good reconnect the cable and monitor the voltage between the two pins of the connector while running the Envelope Feed test if the voltage does not increase momentarily as the magnet is picked replace the engine board Check the adjustment of the feeder magnet If paper is being bent or double fed check the adjustment of the feeder restraint spring Paper Feed Problem 200 Sheet Second Drawer Rt Run the Paper Feed Test and select Tray 2 If Tray 2 is not on the Paper Feed Test menu make sure the jumper at J16 on the engine board is in place and that Tray 2 is properly connected at J17 on the engine board If pape
10. J8 6 with paper present Check continuity on the cable before replacing a sensor If paper is curling badly enough to cause a problem feeding or stack ing see Fuser Temperature And Warm Up Time on page 3 8 Paper Feed Duplex Unit Check that all gears and belts are working correctly both in the duplex unit and on the tray top cover and that the gear on the tray top cover correctly engages the gear on the duplex unit If paper is jamming in the table cover area make sure the table cover is properly installed Run diagnostics Duplex Test 1 to make sure the paper is feeding far enough into the duplex unit before reversing Examine the condition of all rollers If paper is stopping or jamming as it is fed back across the top of the paper tray run diagnostics Duplex Test 2 to make sure there is no slippage in the paper path Make sure the paper tray top cover is not damaged Cold paper curl can also cause jams here see Fuser Temperature And Warm Up Time on page 3 8 2 25 4049 XXX If paper is jamming at the front exit of the printer inspect the duplex exit selector switch and the linkage to the printer exit deflector Check the switch by removing the duplex top cover and table cover and reinstalling the duplex unit in the printer Check for 5 VDC at duplex system board J15 10 The voltage will change from O VDC to 5 VDC as the selector lever is moved Also see 23 Paper Jams on page 2 17 Paper Feed Problem Envelope
11. Paper Feed Alignment Gears 7 14 Paper Feed Drive 7 16 Standard Paper Tray 200 Sheet 7 18 Paper Tray 500 Sheet 7 20 Base for Paper Drawer 500 Sheet 7 22 Second Paper Drawer 200 Sheet 7 24 Optional Paper Drawer 500 Sheet 7 26 7 28 Rama dad 7 32 Transler MA 7 36 Duplex ele EE 7 38 Envelope and 100 Sheet Auxiliary Feeder 7 40 Dual Rear Feeder 7 42 High Capacity Feeder 7 44 ODORS nas sata sua die ad evade 7 46 Mbs A 7 47 O we eee an ae A X1 viii Service Manual 4049 XXX Notices and Safety Information References in this publication to products programs or services do not imply that the manufacturer intends to make these available in all countries in which it operates Any reference to a product program or service is not intended to state or imply that only that product pro gram or service may be used Any functionally equivalent product program or service that does not infringe any existing intellectual property rights may be used instead Evaluation and verification of operation in conjunction with other products programs or services except those expressly designated by the manufacturer are the user s responsibility Laser Notice The printer is certified in the U S to conform to the requirem
12. freely when spun manually and that the cable connections to the fan are OK The voltage at engine board J2 7 should be approximately 24 VDC when the top cover is up Short J2 7 to ground J2 6 to test the fan if the fan does not run check the continuity of the fan cable before replacing the fan A bad fan can pull down the 24 V line even if it runs check that J2 8 has between 21 and 26 VDC when the fan is running If the voltage is under 21 VDC replace the fan if the voltage is correct and there is still a 927 error replace the engine board Diagnostic Information 2 18 4049 XXX Fuser Theory The fuser lamp operates off line voltage from the LVPS The ther mistor is in contact with the fuser hot roll The system board reads the thermistor resistance and toggles a TRIAC in the LVPS which cycles the lamp on and off to maintain the proper hot roll tempera ture Inside the fuser shroud there is a thermal fuse which is in series with the lamp if the TRIAC fails and leaves the lamp on con tinuously the fuse melts and shuts off power to the lamp The thermistor output voltage is proportional to the fuser tempera ture and is on engine board J8 4 The voltage cycles from approxi mately 2 0 to 2 3 VDC as the lamp goes on and off during idle and will be around 2 7 VDC during continuous printing when the Fuser Temperature is set to Normal In Power Saver mode the lamp is left off until a job is printed The engine board signal to
13. 500 Sheet Option or 200 Sheet Second Drawer Non Rt suas x a 108 150 svd Ra Cn e d 2 23 Paper Feed Base Printer 2 23 Paper Feed Duplex Unit 2 25 Paper Feed Problem Envelope Feeder 100 Sheet Auxiliary Feeder 2 26 Paper Feed Problem 200 Sheet Second Drawer Rt 2 26 Paper Feed Problem Dual Rear Feeder 2 27 Machine Level Information 2 27 Paper Feed Problem High Capacity Feeder 2 29 Printhead TTC 2 30 Paper Size Sensing Problem 2 31 Regularly Spaced Marks 2 32 Residual Image e Disse eee eue 2 32 Random Marks 2 2 2 2 2 22 e aro rior e 2 32 Skew all 60066 A NEE 005000838 urn 2 33 Skew top and bottom only 2 33 Stalled diamonds on display 2 34 Vertical Void or Streak 2 34 iv Service Manual 4049 XXX LHABNOSIE AICS nais pesada fo CRS Da 3 1 Diagnostics 11006 2 2 eg grid dos eee thee eae dod 3 1 Diagnostics Mode Menu Structure 3 1 Diagnostics Mode Tests 9 9 AUC CISON rider v bed oh bed Ara KNN 4500 3 3 Auto Clean Frequency 3 3 Auto Clean Delay 2 2 2 22 LL 3 4 A 3 4 Cate Hol asa i4 n RE creeis CIR ERES 3 4 Bec cere ra dep E dia 3 5 Disk Test Clean
14. Aids 3 12 4049 XXX Print Test 1 Print Test 1 generates one printout similar to the test page and will not duplex This test prints from the user selected default paper source if the default source is a tray or from Tray 1 if the default source is a feeder You can change the default source by selecting Paper Source in the Paper Menu After running the test reset the default source to the customer s selection To run Print Test 1 Enter Diagnostics mode Select PRINT TESTS Select Print Test 1 Select Single or Continuous Select CANCEL to stop continuous print Press Return to return to the Diagnostics mode main menu O O1 PS O NR Print Test 2 Print Test 2 generates two printouts a page similar to the test page and a fine dot pattern which can be used to evaluate banding or other print guality problems Print Test 2 will duplex if the duplex option is installed This test prints from the user selected default paper source if the default source is a tray or from Tray 1 if the default source is a feeder You can change the default source by selecting Paper Source in the Paper Menu After running the test reset the default source to the customer s selection To run Print Test 2 Enter Diagnostics mode Select PRINT TESTS Select Print Test 2 Select Single or Continuous Select Cancel to stop continuous print Press Return to return to the Diagnostic mode
15. D roll and the gear train Make sure the gear train is meshing with the drive gear at the bottom of the printer Look for other mechanical problems or damage Make sure the printer and module auto connectors mate properly when the module is installed Check for 34 VDC at engine board J15 2 You can test the torquer motor by shorting engine board J15 1 to ground J15 3 Paper Feed Base Printer Note The printer paper pick mechanism may have either a torquer motor or a solenoid Run the print test or the diagnostic paper feed test and carefully examine the area of the problem If paper is not feeding make sure the paper is in the tray correctly and is not damaged or stuck together With 500 sheet trays make sure the tension wheel is set high enough to give good contact between the D roll and the paper stack If paper is not feeding make sure the gear train is rotating The main motor should be on during most of POR and during any attempt to 2 23 4049 XXX feed paper Remove the RIP board and run Print Test with RIP Board Removed During the test check for 19 2 Vdc on the engine board J6 1 J6 2 J6 3 and J6 4 If the voltage is wrong replace the engine board Remove the motor and gear assembly from the printer and recon nect it to the engine board Reconnect all the other engine board connectors and reinstall at least one engine board mounting nut to make sure the engine board is grounded POR the printer If the motor do
16. Information 4 6 4049 XXX Fuser Solenoid Adjustment Note The fuser solenoid must be mounted on the fuser for this adjustment and should be at room temperature 1 Loosen screw A 2 Remove the rubber washer 3 Rotate shaft B eccentric to obtain 4 2 mm 0 2 mm 0 165 in 0 008 in air gap 4 Tighten screw A 5 Replace the rubber washer 4 7 4049 XXX Paper Feed Magnet Adjustment 1 Remove the system board The magnet is accessed through the holes in the right frame 2 With the armature latched on the cam step check for 0 60 mm 0 07 mm 0 024 in 0 003 in between the foam pad and the magnet pole piece If adjustment is required continue 3 Keep the armature latched and loosen the magnet mounting screw A Insert the feeler gauge Rotate the magnet against the feeler gauge Tighten the mounting screw The gauge should pass between the foam pad and the magnet pole piece with moderate resistance A O SH Repair Information 4 8 4049 XXX Printhead Skew Adjustment 1 O 4 9 R R Rt Rt and Rx Remove the plug in the top cover L Lx and Lx Open the paper exit stop Unlatch and remove the spring loaded exit stacker Loosen the screws A Run Print Test 1 or the Ouick Test on the Diagnostics Menu Move the pointer B to eliminate the skew Moving the pointer toward the left raises the left adjustment point on the printout Each mark is eguivalent to one
17. SETUP Select Charge Roll Select High Medium or Low Press Return to return to the Diagnostics mode main menu AS TE Diagnostic Aids 3 4 4049 XXX Defaults Allows setting the following defaults to U S or Non U S values Letter size paper A4 paper 10 envelopes DL envelopes Symbol Set Roman 8 Symbol Set PC 850 Enter Diagnostics mode Select PRINTER SETUP Select Defaults Select U S or NON U S 5 Press Return to return to the Diagnostics mode main menu A O N Disk Test Clean This is a two hour test three hours for 100MB drives that should be performed only on a disk that contains bad data and is therefore unusable This test destroys all data on the disk by doing a multi pass write read on every block of the disk Bad blocks are flagged and removed from use If over 2000 bad blocks are found the test stops and the display indicates the disk must be replaced A message describing test progress is displayed during the test Enter Diagnostics mode Select DEVICE TESTS Select Disk Test Clean Select CONTINUE to start the test or CANCEL to return to Diagnostics mode main menu Select CANCEL to interrupt the test 6 Press Return to return to the Diagnostics mode main menu FP N C1 3 5 4049 XXX Duplex Feed 1 Test This test checks for slipping paper problems It verifies that the paper is entering the duplex unit far enoug
18. correct paper envelopes properly installed edge guides and flip doors properly positioned and paper load shafts installed parallel to the frame Gear chatter or continuous paper feed Remove the right cover and verify that the gear alignment marks are centered in the win dows of the gear plate when the torquer is in its detent position Refer to Dual Rear Feeder Gear Alignment Adjustment on page 4 4 Continuous feed may also be caused by a short to ground of J5 1 Feeder 1 or J5 8 Feeder 2 Diagnostic Information 2 28 4049 XXX Paper Feed Problem High Capacity Feeder The paper feed rollers should be replaced every 200 000 prinis or whenever feeding becomes unreliable Clean rollers with alcohol or water at every service call The feeder receives a pick signal from the printer and will not do a test feed without the printer installed Paper can be manually picked by rotating the paper feed rollers by hand or by removing the upper paper feed motor screw pivoting the motor downward and rotating the gear For all paper feed problems Verify that the printer designator switch on the rear of the high capacity feeder is set to the correct printer model being used Make sure the paper is undamaged shin gled correctly properly installed in the tray and is the correct weight 16 to 24 Ib and size letter or A4 Letter paper size and A4 paper size model feeders are available Paper sizes are not interchange able between th
19. dot of the skew adjustment points Tighten the screws and verify the adjustment Skew Adjustment Points 4049 XXX Removal Procedures When there is artwork to support a procedure it follows the text Covers Right Cover Removal 0O BOON Turn the printer off Remove all external trays Open the top cover Depress the latch and open the right cover Remove the E clip from the rear pivot pin and lift the cover off the rear pivot pin Front Cover Removal 0O BOON O Unplug the power cord Remove the paper tray Open the top cover Open the right cover Release the latches B You can reach the lower latches through the paper tray opening Lift the right side of the cover to disengage the latch D Slide the cover to the right to disengage the bracket from the posts Pull the front cover forward and disconnect the ground strap from the frame on the left side Repair Information 4 10 4049 XXX 4 11 4049 XXX Left Cover Removal Unplug the power cord Open the top cover and remove the print cartridge Remove the front cover Locate the latch E and lift the end to release it Push the top of the cover to the left Remove the cover by sliding it to the rear of the machine Des A duct Top Cover Removal L Lx and Lx Remove stacker plate by pulling upward Remove the top cover screws C Lift the rear of the cover first then the front and
20. is either damaged or is not receiving 34 VDC from the printer To check the connection from the printer engine board to the duplex system board remove the printer RIP Board Remove the duplex top cover and table cover and reinstall the duplex unit Engine board J3 2 should have continuity with the duplex system board J5 1 J3 3 with J5 2 and so on With power on you should have the following voltages Engine Board Duplex System Board Diagnostic Information 2 16 4049 XXX If you do not find a cable or voltage problem replace the duplex sys tem board If this does not fix the problem replace the printer engine board A 993 error indicates that communication between the printer and duplex unit had been established but has been lost Check the cable as above if the error persists replace the duplex system board 23 Paper Jams Examine the paper path in the duplex unit and in the fuser exit area for paper or other obstructions Make sure the duplex unit is positioned correctly on the printer and that the gear at the bottom of the duplex unit meshes with the gear on the top of the paper tray Check that the paper is fed with no skew or binds from the duplexer into the metal channel at the right edge of the tray cover The tray roller should move the paper forward when the tray gear is turned but allow the paper to be pulled by the D roll when it picks Make sure the belt to the duplex DC motor is in place Make sure the dupl
21. lift the cover off Rest the cover on the machine and disconnect the operator panel cable DUE gei Repair Information 4 12 4049 XXX 4 13 4049 XXX 14 in 3 200 Sheet Paper Tray Top Cover Push the tab where the left corner of the tray cover pivots Move the left tray cover pivot pin forward and then upward Remove the cover from the tray 500 Sheet Paper Tray Top Cover Remove the two screws which secure the front trim panel Slide the trim panel to the rear to expose the tray cover pivot pins Lift the cover from the tray D roll Assembly Removal E m eg Unplug the power cord Remove the paper tray Hemove the print cartridge Hemove the fuser input guide Remove the transfer roll housing assembly Pull the D roll firmly to the left to remove it Note The D roll is designed to be installed only once if it is removed for any reason it should be replaced with a new one It may take considerable force to install the new D roll Drive O JO 0 Fb WD Motor Removal Unplug the power cord Remove the RIP board and inner EMC shield together Remove the engine board Remove the fuser input guide Remove the transfer housing assembly Remove the gear cover by releasing the rear latch and lifting up Remove the motor mounting nuts B and screws D Work the motor out of the machine Repair Information 4 14 4049 XXX Engine Board Removal 4 15 1 oo e Lo
22. mode main menu 4049 XXX Error Log The error log records the last six 2X Paper Jam or 9XX Service errors In a full log position 6 is the oldest error If more than six errors are received the oldest error is discarded If the same error occurs consecutively it is recorded only once All 97X Network Card errors are logged as 977 Enter Diagnostics mode Select ERROR LOG Select CLEAR and then CONTINUE to clear the error log Press Return to return to the Diagnostics mode main menu ub m Flash Test This test writes to and reads from the flash memory It destroys all data stored in the flash SIMM 1 Enter Diagnostics mode 2 Select DEVICE TESTS 3 Select Flash Test The operator panel will display Passed or Failed 4 Press Return to return to the Diagnostics mode main menu Fuser Temperature And Warm Up Time These settings allow adjustment of the fuser to correct problems with paper curl or melting letterheads Paper curl in which the top and bottom of the page curl away from the printed side hot paper curl can be corrected by reducing the fuser temperature Reduce the setting from Normal to No Boost if necessary reduce the setting further to Low Temperature Verify that the toner is being adequately fused to the paper at the new tempera ture setting Paper curl in which the edges of the paper curl toward the printed side cold paper curl can be corrected by increasing the fuser w
23. pages 6 Select Stop when you want the continuous test to end oe UN s Print Test with RIP Board Removed Most meter measurements required during printer service will be on the engine board connectors which are inaccessible with the RIP board in place The printer has a service mode which allows you to test the printer without the RIP board installed This verifies that the motors sensors printhead and electrophotographic process are working correctly In this mode the operator panel has minimal func tion service codes are not displayed and most error handling is dis abled during normal operation these functions are handled by the RIP boara Remove the RIP board and the inner EMC shield together and power on the printer The operator panel has one button active which starts and stops the print test The test consists of horizontal lines spaced about an inch apart down the page This is a continuous print test to print a single page press the start button twice Diagnostic Aids 3 18 4049 XXX 4 Repair Information This chapter explains how to make adjustments to the printer and how to remove defective FRUS Handling ESD Sensitive Parts 4 1 Many electronic producis use parts that are known to be sensitive to electrostatic discharge ESD To prevent damage to ESD sensitive paris follow the instructions below in addition to all the usual pre cautions such as turning off power before removing logic boards Keep
24. produits laser de Classe sont consid r s comme des produits non dangereux Cette imprimante est quip e d un laser de Classe Ib 3b ars niure de gallium d une puissance nominale de 5 milliwatts mettant sur des longueurs d onde comprises entre 770 et 795 nanom tres Limprimante et son syst me laser sont concus pour impossible dans des conditions normales d utilisation d entretien par l utilisateur ou de r vision l exposition des rayonnements laser sup rieurs des rayonnements de Classe x Service Manual 4049 XXX Avvertenze sui prodotti laser Questa stampante certificata negli Stati Uniti per essere conforme ai requisiti del DHHS 21 CFR Sottocapitolo J per i prodotti laser di classe 1 ed e certificata negli altri Paesi come prodotto laser di classe 1 conforme ai requisiti della norma CEI 825 prodotti laser di classe non sono considerati pericolosi La stampante contiene al suo interno un laser di classe Illb 30 all arseniuro di gallio della potenza di bmW che opera sulla lunghezza d onda compresa tra 770 e 795 nanometri Il sistema laser e la stampante sono stati progettati in modo tale che le persone a contatto con la stampante durante il normale funzionamento le operazioni di servizio o quelle di assistenza tecnica non ricevano radiazioni laser superiori al livello della classe Tx Avisos sobre el l ser Se certifica que en los EE UU esta impresora cumple los requisitos para los productos l ser
25. the ESD sensitive part in its original shipping container a special ESD bag until you are ready to install the part into the machine Make the least possible movements with your body to prevent an increase of static electricity from clothing fibers carpets and furniture Put the ESD wrist strap on your wrist Connect the wrist band to the system ground point This discharges any static electricity in your body to the machine Hold the ESD sensitive part by its edge connector shroud cover do not touch its pins lf you are removing a pluggable module use the correct tool Do not place the ESD sensitive part on the machine cover or on a metal table if you need to put down the ESD sensitive part for any reason first put it into its special bag Machine covers and metal tables are electrical grounds They increase the risk of damage because they make a discharge path from your body through the ESD sensitive part Large metal objects can be discharge paths without being grounded Prevent ESD sensitive parts from being accidentally touched by other personnel Install machine covers when you are not work ing on the machine and do not put unprotected ESD sensitive parts on a table If possible keep all ESD sensitive parts in a grounded metal cabinet case Be extra careful in working with ESD sensitive parts when cold weather heating is used because low humidity increases static electricity 4049 XXX Adjustments Env
26. the HVPS con tact returns to its upward limit when depressed and make sure the left bearing of the transfer roll is making proper contact If the error persists replace the HVPS and cable 918 Transfer Roll Error Servo Failure Verify correct cable connections from the Engine board to the HVPS Make sure there is continuity between the transfer roller and its contact on the HVPS replace the transfer roll if the continuity is correct If there is no continuity make sure the HVPS contact returns to its upward limit when depressed and make sure the left bearing of the transfer roll is making proper con tact 2 5 4049 XXX 920 Fuser Error Fuser is below temperature while printing See Fuser 920 921 or 922 Error on page 2 19 921 Fuser Error Fuser is below standby temperature when idle See Fuser 920 921 or 922 Error on page 2 19 922 Fuser Error Fuser failed to reach standby tem perature See Fuser 920 921 or 922 Error on page 2 19 923 Fuser Error Fuser is too hot while printing or when idle See Fuser 923 or 924 Error on page 2 20 924 Fuser Error Open detected in thermistor circuit See Fuser 923 or 924 Error on page 2 20 927 Fan Stalled See Fan 927 Error on page 2 18 928 Erase Lamps Erase lamp assembly missing or dis connected 931 Printhead Error No first hsync See Printhead on page 2 30 932 Printhead Error Lost hsync See Printhead on
27. the fuser lamp is the not the same as the line volt age replace the LVPS If the lamp fuser power cable thermal fuse thermistor and lamp voltage are OK check J4 16 to see if the engine board is sending the correct signal to the TRIAC At POR this signal should go to 5 VDC and then immediately drop to O VDC until the fuser is warm if it does not replace the engine board If the signal is OK replace the LVPS Fuser 923 or 924 Error Check the connection and continuity of the cable from the fuser exit sensor board to engine board J8 Check the thermistor condition and connection Check the thermistor resistance at engine board J8 3 to J8 4 It should be from 100K Ohms to 260K Ohms when cold it may be as low as 2 3K Ohms when hot but increase quickly as the fuser cools Honeycomb Areas of the page are covered by faint 6 mm circles This print defect is usually caused by the print cartridge If it is not the problem verify that the tab on the transfer roll housing is touch ing the contact on the HVPS the transfer roll housing should have continuity to ground Make sure the HVPS ground lead to the side frame is in place and making good contact Horizontal Void or Streak This is usually due to the cartridge not being installed correctly Check the printhead area for obstructions and check the mechani cal workings of the print cartridge and printhead shutter If nothing is found see Blank Page on page 2 14 and follow tho
28. 28 Load Envelope Paper Input sensor not made after pick attempt Tray is empty or not installed paper jam in entry throat or printer is requesting a manual feed 29 Output Bin Full The output bin sensor has not been unmade See Output Bin Sensor on page 2 22 Diagnostic Information 2 2 4049 XXX Error Code Explanation 30 Top Cover Open or Print Make sure the spring mounted pin Cartridge Missing on the printhead shroud is installed properly and that it is detected by the ramp on the print cartridge as the cover closes The pin should enter the tower on the HVPS and depress the cover switch 32 Wrong Print Cartridge The installed print cartridge is not installed supported by the Optra printer 37 Insufficient Collation Mem Memory is too full to collate the print ory job 38 Memory Full Memory used to store pages is full To verify that the printer recognizes all the installed memory go to the user menus and print the Print Menus test page Make sure the memory shown on the printout matches the installed memory 39 Complex Page Page too complex to print To verify that the printer recognizes all the installed memory go to the user menus and print the Print Menus test page Make sure the memory shown on the printout matches the installed memory 43 Font Card Not Supported Font card format not supported by printer 44 Defective Font Card Defective font card installed in font slot 47 Font Card Remo
29. 4 ss ssssssssasestesssassusesses 3 5 Duplex Feed 1 Test ciana 22 a adida 3 6 Duplex Feed 2 Test 3 64 333 byes rare 3 6 Envelope Enhance su ats es de 183 3 7 Envelope Print Test sa 2 2 2 ss tx PEESXERA EREITRETI4G 3 7 EI EI Wes 3 8 AI 3 8 Fuser Temperature And Warm Up Time 3 8 Fuser Temperature s s eie ei aaa nee 3 9 Fuser Warm Up Time 3 9 lr SETETE DO REBEL 3 9 Maintenance Kit Count 2 3 10 Memory TESIS m 3 10 FOE COUN usasse a a IS eee ones 3 10 Paper EE 3 10 Parallel Confidence 3 11 Permanent Page Count 3 11 Print CONTA parana si 183508 do 6 Boat ea age 3 11 Print Registration eo sees ones a DIT LIT 3 12 IIA KSS Is memes abtedssesceibpee te emesdeog ses 3 13 gii mI c saindo picada area E 3 13 aj 3i cm PET 3 14 QUER DISK Teel circa aie rc rs 3 14 LUE TBSE dons rin d kde ESO ae AERA ies 3 14 censor m 3 15 Top Margin and Duplex Quick Tests 3 15 EE ya due OL og acd die rated U er El 3 16 Wrap PT 3 16 4049 XXX iher TK saa sek riada DS PT DAS Ener a 3 17 Developed Image Test 3 17 LAN Inlormalionsc 444460454 Lern ana 3 17 Prnt Tost POS ta peace enone ee bane DO dic 3 18 Print Test with RIP Board Removed 3 18 Repair Information Hrn 4 1 Handling ESD Sensitive Parts 4 1 AU IIS IIS spas a
30. Diagnostic Information 2 32 4049 XXX Inspect and clean the inside of the printer carefully and correct any problems found Skew all edges If the test print frame is parallel to all edges of the page but the mar gins are not all the same width Print Registration on page 3 12 If the test print frame is not parallel to the left and right edges of the paper the paper has skewed in the paper path Check the paper path for obstructions Make sure the paper in the tray is undamaged and loaded properly and the tray side restraint is properly adjusted Check the prealigner drive and auxiliary rollers springs and backup rollers for dirt wear or damage refer to the parts catalog for repair kits for broken bellcrank spring attachment hooks on the side frame Make sure all the bellcrank assemblies pivot freely Check the gear train for damage or binds Skew top and bottom only If the test print frame is parallel to the left and right edges of the paper but not parallel to the top and bottom the printhead skew needs to be adjusted See Printhead Skew Adjustment on page 4 9 2 33 4049 XXX Stalled diamonds on display Check the continuity of the cable from J1 on the engine board to the operator panel Next reseat the ROM and memory SIMMs and POR This condition can also occur if the RIP and engine board are not seated or their connectors are damaged If the problem is still present replace one at a time the 1 RO
31. E THIS UNIT ALLOW THE MACHINE TO COOL FOR 5 MINUTES 1 Unplug the power cord 2 Remove the printer cartridge 3 Through the opening for the paper output flip the metal ESD shield up out of the way and disconnect the exit sensor cable from the fuser Remove the fuser cover Disconnect the power wires A from the left side of the fuser Remove the fuser input guide Completely loosen the four fuser mounting screws Lift the fuser out of the machine CON O O A Repair Information 4 18
32. G UDS ETTELSE FOR STR LING Jm UE EST SIBI EST LLEESERKET EHO ARRETE O PR xd oc LE LC SEL CES Notices and Safety Information ix 4049 XXX Laser Der Drucker erf llt gem amtlicher Best tigung der USA die Anforderungen der Bestimmung DHHS Department of Health and Human Services 21 CFR Teil J f r Laserprodukte der Klasse 1 In anderen L ndern gilt der Drucker als Laserprodukt der Klasse I der die Anforderungen der IEC International Electrotechnical Commission 825 gem B amtlicher Best tigung erf llt Laserprodukte der Klasse gelten als unsch dlich Im Inneren des Druckers befindet sich ein Laser der Klasse lllb 3b bei dem es sich um einen Galliumarsenlaser mit 5 Milliwatt handelt der Wellen der L nge 770 795 Nanometer ausstrahlt Das Lasersystem und der Drucker sind so konzipiert daB im Normalbetrieb bei der Wartung durch den Benutzer oder bei ordnungsgem er Wartung durch den Kundendienst Laserbestrahlung die die Klasse bersteigen w rde Menschen keinesfalls erreicht Avis relatif a l utilisation de laser Pour les Etats Unis cette imprimante est certifi e conforme aux provisions DHHS 21 CFR alin a J concernant les produits laser de Classe 1 Pour les autres pays cette imprimante r pond aux normes IEC 825 relatives aux produits laser de Classe l Les
33. Inc registered in the United States and or other countries OCopyright Lexmark International Inc 1995 1996 All rights reserved UNITED STATES GOVERNMENT RESTRICTED RIGHTS This software and documentation are provided with RESTRICTED RIGHTS Use duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph c 1 11 of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 and in applicable FAR provisions Lexmark International Inc Lexington KY 40550 4049 XXX Table of Contents Notices and Safety Information ix Laser Notice oss bed DAS DSG ed rd ic ad IX E A X Avis relatif l utilisation de laser X Avvertenze sui prodotti laser xi Avisos sobre el l ser Xi Declara o sobre Laser xii LOS STIMIKOTIIIIS 115540058 48 35 494 38 E we xii Lasermeddelelse LL LL a xili Huomautus laserlaitteesta xiii ESSBISDDIS 2 2 nord 400804068 io Ik A dA DEDE A GERA ME se XIV ASSIM aco pic oa a cer decisions xiv Av s sobre el L ser Lu LL LL LL XV Japanese Laser Notice XV Chinese Laser Notice cc
34. Iw Check the page count and write it down so you can set the count on the new engine board Turn the printer off Remove the RIP board and the inner EMC shield together Disconnect the engine board cable connections Remove the nut and the three threaded standoffs Unsnap the board from the plastic standoff 4049 XXX Exit Sensor Board Removal Remove the front cover Disconnect the fuser sensor cable Disconnect the thermistor cable Disconnect the fuser solenoid cable Release the latches A Pull the sensor board down to remove it 2 052 MT Repair Information 4 16 4049 XXX Fan Redrive Removal OT A ON CO 0 N O Open the top cover Remove the print cartridge Remove the top cover Remove the lower redrive shaft by disengaging the right end to the rear of the machine Disconnect the long redrive belt A and slip it off the lower shaft L Lx and Lx Disconnect the output bin sensor cable Remove the redrive assembly screws D Remove the plenum assembly and screws B Unplug the fan cable The fan C can now be removed from the plenum assembly 4049 XXX Fuser Removal Note The heater lamp is fragile and may be damaged if you are not careful when you remove or replace the fuser unit CAUTION THE TEMPERATURE OF THE HOT ROLLER IS 150 230 C 302 446 F USE EXTREME CAUTION WHEN REMOV ING THIS UNIT BEFORE YOU SERVIC
35. M SIMM 2 Engine board 3 RIP Board Vertical Void or Streak Do a developed image test to determine if the defect is occurring before or after the transfer process If you see the defect on the photoconductor check the operation of the printhead shutter and clean the printhead window with a lint free cloth folded over a cotton swab do not use a bare swab and do not use any cleaning fluids or water on the printhead window Inspect the HVPS contacts If the image on the photoconductor is good inspect the fuser rolls and transfer roll Make sure the left transfer roll bearing is contacting the contact from the HVPS Make sure the HVPS contacts are clean and spring back when pressed Diagnostic Information 2 34 4049 XXX 3 Diagnostic Aids Diagnostics Mode To run the remainder of the printer diagnostic tests described in this chapter you must put the printer in Diagnostics mode To enter Diagnostics mode 1 Turn the printer off 2 Press and hold the Ready and Return buttons Then turn the printer on The printer performs the Power On Self Test 3 Release the buttons when Performing Self Test is displayed 4 You can exit Diagnostics mode without a POR by selecting Reset Printer Diagnostics Mode Menu Structure The following is the Diagnostics mode menu structure The indented items are submenus available under the main menu items which are in capital letters on the operator panel Menu items referring to op
36. Test Clean 2 hour test Replace the disk if instructed by the operator panel 7X Network Card Codes These user codes are documented in various network card user manu als See Network Wrap Tests on page 2 22 80 Scheduled Maintenance Printer has reached 200 000 prints without maintenance count reset Refer to Scheduled Mechanical Maintenance on page 6 3 Diagnostic Information 2 4 4049 XXX Error Code Explanation 81 Engine Code CRC Microcode to be programmed into the engine board during a machine upgrade has failed a CRC check The microcode data will be dis carded and must be retransmitted from the host computer 88 Toner Low Toner sensor detects low toner 90X Software Error Unrecoverable software error If one of these errors appeared during POST or while the printer was idle not printing or receiving data or while trying to print one of the inter nal test pages replace the RIP Board If the error appeared while sending a job from the host com puter to the printer turn the printer off then turn it on and try again If the error appears again call the next level service support for assistance 917 Transfer Roll Error Cannot start servo operation Verify correct cable connections from the engine board to the HVPS Make sure there is continuity between the transfer roller and its contact on the HVPS replace the transfer roll if the continuity is correct If there is no continuity make sure
37. VD Na Service Manual Lexmark is a trademark of Lexmark International Inc registered in the United States and or other countries LEXMARK 4049 XXX Third Edition November 1996 The following paragraph does not apply to the United Kingdom or any country where such provisions are inconsistent with local law LEXMARK INTERNATIONAL INC PROVIDES THIS PUBLICATION AS IS WITHOUT WARRANTY OF ANY KIND EITHER EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Some states do not allow disclaimer of express or implied warranties in certain transactions therefore this statement may not apply to you This publication could include technical inaccuracies or typographical errors Changes are periodically made to the information herein these changes will be incorporated in later editions of the publication Improvements or changes in the products or the programs described in this publication may be made at any time Publications are not stocked at the address given below requests for publications should be made to your point of purchase Comments may be addressed to Lexmark International Inc D22A 035 3 740 New Circle Road NW Lexington Kentucky 40550 U S A Lexmark may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you Lexmark is a trademark of Lexmark International
38. arm up time Use the lowest setting that corrects the problem Setting 0 is the factory default and is the shortest warm up time Diagnostic Aids 3 8 4049 XXX Setting 5 increases warm up time by 90 seconds lower settings increase the time proportionately less Settings other than 0 may reduce throughput Use the or key to change the number and then select SAVE Melting letterheads may be prevented by reducing the fuser temperature as described above for paper curl Fuser Temperature 0O A O N Enter Diagnostics mode Select PRINTER SETUP Select Fuser Temperature Select Normal No Boost Or Low Temperature Press Return to return to the Diagnostics mode main menu Fuser Warm Up Time AA O N 9 Enter Diagnostics mode Select PRINTER SETUP Select Warm Up Time Select a setting of 0 through 5 Use the or key to change the number O is the shortest fuser warm up factory setting 5 is the longest fuser warm up Press Return to return to the Diagnostics mode main menu LCD Test To test the operator panel display 3 9 0O BON O Enter Diagnostics mode Select HARDWARE TESTS Select LCD Test Select Single or Continuous The display goes through a continuous sequence of turning pels on and off Press Return to stop continuous LCD test Press Return to return to the Diagnostics mode main menu
39. caratteristiche di sicurezza di alcune parti non sempre sono di immediata comprensione Lexmark non responsabile per l utilizzo di parti di ricambio di altri produttori Le informazioni riguardanti la manutenzione di questo prodotto sono indirizzate soltanto al personale di assistenza autorizzato Durante lo smontaggio e la manutenzione di questo prodotto il rischio di subire scosse elettriche e danni alla persona piu elevato Il personale di assistenza autorizzato deve quindi adottare le precauzioni necessarie Sicherheitshinweise Dieses Produkt und die zugeh rigen Komponenten wurden entworfen und getestet um beim Einsatz die weltweit g ltigen Sicherheitsanforderungen zu erf llen Die sicherheitsrelevanten Funktionen der Bauteile und Optionen sind nicht immer offensichtlich Sofern Teile eingesetzt werden die nicht von Lexmark sind wird von Lexmark keinerlei Verantwortung oder Haftung f r dieses Produkt bernommen Die Wartungsinformationen f r dieses Produkt sind ausschlieBlich f r die Verwendung durch einen Wartungsfachmann bestimmt Wahrend des Auseinandernehmens und der Wartung des Ger ts besteht ein zus tzliches Risiko eines elektrischen Schlags und k rperlicher Verletzung Das zust ndige Fachpersonal sollte entsprechende VorsichismaBnahmen treffen Notices and Safety Information xix 4049 XXX Pautas de Seguridad Este producto se ha dise ado verificado y aprobado para cumplir los m s estrictos est nda
40. d Contact your next level of support 977 Network Card 1 Network card 1 is installed but is not communicating with the RIP Board See Network Card 977 Errors on page 2 21 977 Network Card 2 Network card 2 is installed but is not communicating with the RIP Board See Network Card 977 Errors on page 2 21 978 Network Card 1 General network 1 card hardware error Replace network card 1 Diagnostic Information 2 8 4049 XXX 978 Network Card 2 General network 2 card hardware error Replace network card 2 979 Network Card 1 General network 1 card software error Verify that the network card is installed and grounded correctly If this error returns after a POR there is a software or microcode incompat ibility problem Do Not replace the card Contact your next level of sup port 979 Network Card 2 General network 2 card software error Verify that the network card is installed and grounded correctly If this error returns after a POR there is a software or microcode incompat ibility problem Do Not replace the card Contact your next level of sup port 990 Duplex Option Duplex error See Duplex on page 2 16 991 Duplex System Card Fail Duplex system board failure ure Replace the duplex system board 993 Duplex Comm Failure Communications between the duplex unit and the printer have failed See Duplex on page 2 16 2 9 4049 XXX Power On Self Test POST When you turn the printer on i
41. de Clase 1 establecidos en el subcap tulo J de la norma CFR 21 del DHHS Departamento de Sanidad y Servicios y en los dem s pa ses re ne todas las condiciones expuestas en la norma IEC 825 para productos l ser de Clase 1 Los productos l ser de Clase no se consideran peligrosos La impresora contiene en su interior un l ser de Clase IIIb 3b de arseniuro de galio de funcionamiento nominal a 5 milivatios en una longitud de onda de 770 a 795 nan metros El sistema l ser y la impresora est n dise ados de forma que ninguna persona pueda verse afectada por ning n tipo de radiaci n l ser superior al nivel de la Clase durante su uso normal el mantenimiento realizado por el usuario o cualquier otra situaci n de servicio t cnico Notices and Safety Information xi 4049 XXX Declara o sobre Laser A impressora est certificada nos E U A em conformidade com os requisitos da regulamenta o DHHS 21 CFR Subcap tulo J para a Classe 1 de produtos laser Em outros locais est certificada como um produto laser da Classe 1 em conformidade com os requisitos da norma IEC 825 Os produtos laser da Classe n o s o considerados perigosos Internamente a impressora cont m um produto laser da Classe 1116 3b designado laser de arseneto de pot ssio de 5 milliwatis operando numa faixa de comprimento de onda entre 770 e 795 nan metros O sistema e a impressora laser foram concebidos de forma a nunca existir qualq
42. e two models Make sure that all paper in the tray is the same type and has not been run through the printer before Envelopes and transparencies are not supported in the high capac ity feeder Jams Make sure the printer is installed correctly on the feeder Check for obstructions in the printer throat Make sure the paper in the tray does not have excessive curl Look between the printer and feeder to make sure the paper is entering the printer correctly Failure to feed Check the printer Paper Source menu for a Tray 2 indication to be sure the printer detects the high capacity feeder Check the condition of the feed rollers and clean with alcohol or water replace if necessary Make sure the feed motor is connected and functioning The motor winding resistance is 36 ohms 2 ohms for the following pins 1 4 1 6 2 3 and 2 5 No pin should have con tinuity to the motor case and no pin should have a short to any other pin Multiple feeds This is often due to environmental factors or the customer s choice of papers Make sure the paper is undamaged and that the corner bucklers are in good condition and free to move up and down with the paper stack Tray does not raise lower properly Elevator motion can be tested by opening and closing the door with or without the printer installed 2 29 4049 XXX The elevator mechanism and switches can be inspected by remov ing the cover positioning it near the feeder reconnecting the power s
43. efully remove the duplex unit from the printer without dis turbing the position of the paper on the top of the duplex tray Without changing the position of the page hold it to the top of the paper tray and remove the paper tray Measure from the leading edge of the page to the leading edge of the paper stack in the tray This measurement should be 75 mm or less If it is larger than 75 mm there is a drive prob lem in the duplex unit or in the tray top cover Select CONTINUE Perform the test several times to verify that the measurement is accurate Press Return to return to the Diagnostics mode main menu Envelope Enhance Use this procedure to set the fuser solenoid power level to low medium or high Increase the level to reduce envelope wrinkling or decrease the level to reduce solenoid noise 0O BOON Enter Diagnostics mode Select PRINTER SETUP Select Envelope Enhance Select Low Medium or High Press Return to return to the Diagnostics mode main menu Envelope Print Test 3 7 Use Envelope Print Test to test the Envelope or Auxiliary feeder Envelope Print Test generates one printout a page of ripple print Printing will occur only on the first page or envelope O O1 POND Enter Diagnostics mode Select PRINT TESTS Select Envelope Print Test Select Single or Continuous Select CANCEL to stop continuous print Press Return to return to the Diagnostic
44. elope Restraint Spring On The Envelope Feeder Adjustment 1 Loosen the mounting screw A 2 Position the spring B so it clears the separator roller by 1 9 0 2 mm 0 075 0 008 in 3 Tighten the mounting screw B A 1 9 0 2mm 0 075 0 008in Rear View Paper Restraint Spring On The 100 Sheet Auxiliary Feeder Adjustment 1 Loosen the mounting screw A 2 Position the spring B so it clears the separator roller by 1 0 0 2 mm 0 040 0 008 in 3 Tighten the mounting screw B A 1 0 0 2mm 0 040 0 008in Rear View Repair Information 4 2 4049 XXX Envelope Feeder Magnet And 100 Sheet Auxiliary Feeder Magnet Adjustment 1 Hold the armature A in the closed coil active position 2 Loosen the mounting screw B and rotate the magnet assem bly so the armature clears the clutch gear by 0 30 0 20 mm 0 012 0 008 in 3 Tighten the screw 4 Check the adjustment on both sides of the gear 4 3 4049 XXX Dual Rear Feeder Gear Alignment Adjustment Remove the right side cover of the feeder The gear timing marks should be centered in the windows of the gear plate If the timing mark is too far clockwise the gears will chatter during a POR lf the mark is too far counterclockwise extra sheets may feed at random times or paper may feed continuously after the first page is fed To adjust Remove the mounting screw at the front of the torquer Loosen the moun
45. ents of DHHS 21 CFR Subchapter J for Class 1 laser products and else where is certified as a Class laser product conforming to the requirements of IEC 825 Class laser products are not considered to be hazardous The printer contains internally a Class Illb 3b laser that is nominally a 5 milliwatt gallium arsenide laser operating in the wavelength region of 770 795 nanometers The laser system and printer are designed so there is never any human access to laser radiation above a Class level during normal operation user maintenance or prescribed service condition CAUTION INVISIBLE LASER RADIATION WHEN OPEN AVOID EXPOSURE TO BEAM ATTENTION RADIATION LASER INVISIBLE EVITER L EXPOSITION AU RAYON LORS DE L OUVERTURE VORSICHT UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEOFFNET NICHT DEM STRAHL AUSSETZEN VOORZICHTIG ONZICHTBARE LASERSTRALING BIJ GEOPENDE KAP VERMIJD BLOOTSTELLING AAN STRAAL ATTENZIONE RADIAZIONI LASER INVISIBILI EVITARE L ESPOSIZIONE DIRETTA QUANDO SI APRE LA STAMPANTE RADIACION LASER INVISIBLE CUANDO ESTE ABIERTA EVITE LA EXPOSICI N A LA RADIACION RADIA O LASER INVIS VEL QUANDO ABRIR EVITE EXPOSI O AOS RAIOS AVATTAESSA OLET ALTTIINA N KYM TT M LLE LASERS TEILYLLE L KATSO S TEESEEN OSYNLIG LASERSTR LNING N R DENNA DEL R PPNAD STR LEN R FARLIG ADVARSEL USYNLIG LASERSTR LING N R DEKSEL PNES UNNG EKSPONERING FOR STR LEN ADVARSEL USYNLIG LASERSTRALING VED ABNING UND
46. es not run during POR replace the motor If the motor is OK look for a bind elsewhere in the gear train Intermittent problems may be caused by a thermal problem in the motor Run an extended print test if the gear train stops suddenly replace the motor If paper is not feeding or is feeding continuously with no gaps between pages remove the paper tray and the RIP board Press switches 1 and 3 on the paper size switch assembly Watch the D roll as you run the Print Test with RIP Board Removed One of the following will occur e The D roll will make one complete revolution and stop with the flat side down This indicates that the mechanism is working correctly If the flat side is not facing down or if the printer had error code 20 or 28 turn the D roll if it rotates easily more than 10 either the D roll or gear 11 is damaged and should be replaced e The D roll will turn continuously a Torquer There is a possible short to ground of the lead between the torquer gear and engine board J14 2 or the timing marks on the torquer gear and the D roll gear are mis aligned Examine the condition of the torquer leads and replace the torquer motor if necessary The timing marks are visible when the engine board is removed If no problem is found replace the engine board b Solenoid There is a possible short to ground of the lead between the solenoid and engine board J14 2 or the sole noid is out of adjustment Examine the condition
47. ex table cover floor is correctly snapped in place at its front and rear and that the gear block assembly is correctly snapped into the bottom cover Run duplex diagnostics tests 41 and 2 to make sure there is no slippage in the paper path Make sure the flags of the duplex unit input and exit sensors move freely While the 23 is displayed press and hold the Return button while pressing the second button from the top and note the 7th and 8th digits from the left If they are 01 or 03 there is a problem with the duplex input sensor signal Remove the duplex top cover and table cover and reinstall the duplex unit on the printer Measure the volt age on J5 12 of the duplex system board it should fluctuate from O to 5 VDC as you toggle the sensor Check the sensor cable conti nuity If the sensor and the cable are good replace the duplex sys tem board If the 7th and 8th digits are 04 there is an exit sensor problem Remove the duplex top cover and table cover and reinstall the duplex unit on the printer Remove the paper tray so you can reach the sensor Measure the voltage on J5 8 of the duplex board it should fluctuate from 0 to 5 VDC as you toggle the sensor Check the sensor cable continuity If the sensor and the cable are good replace the duplex system board 2 17 4049 XXX Fan 927 Error The fan should run continuously when the printer is powered up unless the printer is in Power Saver mode Check that the fan rotates
48. f and into the sensor as paper passes into the bin On the sensor the voltage from pin 2 to pin 3 pin 1 is the bottom pin should change from 0 to 5 VDC as the sen sor is blocked and unblocked Pin 1 should always measure 5 VDC Replace the sensor the sensor card or the operator panel bin sen sor cable as necessary Operator Panel Problem Note If the printer is in Menus Disabled mode you can activate the menus by powering on the printer with the Return button and the top button pressed Repeat the POR procedure to disable the menus again after service Diagnostic Information 2 22 4049 XXX Possible causes failed LCD or operator panel card cable or con nector problem or engine board problem Replace the operator panel if POR stops with half rows of pels dis played Run the diagnostic tests for the LCD and for the buttons If only some buttons or pels work replace the operator panel If the printer beeps 5 times at POR or if the operator panel is blank check for 5 VDC at pin 4 of the cable connector at the operator panel and also at engine board J1 4 Replace the operator panel or the cable if they are the problem If the voltage at the engine system board is incorrect check that the LVPS is providing 5 VDC at J4 7 J4 9 and J4 11 and replace the LVPS if its output voltages are wrong Paper Feed Problem 500 Sheet Option or 200 Sheet Second Drawer Non Rt Remove the module and inspect the tray the module
49. following voltages 24 VDC at engine board J2 1 5 VDC at engine board J11 4 and 5 VDC at engine board J12 8 If these voltages are not correct replace the engine board Verify the continuity of the fan mirror motor cable the hsync cable and the laser cable 934 and 935 errors Check engine board J2 5 during a POR the voltage should be between 2 VDC and 4 VDC for about seven seconds after the main motor turns on If the voltage is incorrect replace the engine board If the voltage is correct check the continu Diagnostic Information 2 30 4049 XXX ity of the fan mirror motor cable Replace the printhead if the cable is good Paper Size Sensing Problem The printed area does not fit on the page or the paper size cannot be changed from the operator panel Make sure the paper tray and its stops are undamaged Make sure the cable to the paper size switch is connected correctly With the paper tray removed the resistance of the paper size switch should be infinite With the tray installed the resistance of the switch varies with the paper size For Tray 1 remove the front cover disconnect the cable from the sensor and measure the resistance between the two pins on the sensor board For 500 Sheet Option or 200 Sheet Second Drawer Non Rt remove the RIP Board disconnect J15 from the engine board and measure between J15 3 and J15 4 on the cable For 200 Sheet Tray 2 Rt remove the RIP board disconnect J17 from t
50. h for the trailing edge to clear the selector fingers before the paper reverses direction Enter Diagnostics mode Select DUPLEX TESTS Select Duplex Feed 1 Select Tray 1 or Tray 2 xD eg Note Paper feeds all the way into the duplex unit and stops 5 The message Clear Paper appears on the display 6 Slide the tray extension all the way out until it stops 7 Push a small screwdriver through the lower end of one of the ventilation slots and through the sheet of paper fed in under the slot 8 Open the cover and remove the sheet of paper 9 Measure the distance from the mark on the paper to the trailing edge of the paper If the mark or hole is more than 85 mm from the trailing edge there is a paper slipping problem with the duplex unit paper feed Duplex Feed 2 Test This test verifies that paper feeds through the duplex unit properly and tests the stop point of the page as it feeds back over the top of the duplex paper tray Enter Diagnostics mode Select DUPLEX TESTS Select Duplex Feed 2 Select Tray 1 or Tray 2 A O N Note Paper feeds all the way into the duplex unit and then feeds out and stops on top of the paper tray 5 The message Clear Paper appears on the display Open the printer top cover 7 f you are doing the test with legal size paper open the top cover of the duplex unit O Diagnostic Aids 3 6 4049 XXX 8 9 10 11 12 13 Car
51. he engine board and measure between J17 3 and J17 4 on the cable If the readings do not match the following within 596 replace the paper size sensor Tray installed and set to 11 A4 N SMm 2 31 4049 XXX Regularly Spaced Marks This is caused by a defect on one of the rolls or gears in the print process The damaged part can be determined by the spacing of the marks according to the following table Find and replace the dam aged part PC Drum part of print cartridge 125 7 mm Transfer Roll 53 1 mm Fuser Hot Roll 78 9 79 2 mm Charge Roll part of print car 37 1 37 7 mm tridge Developer Roll part of print car 40 0mm tridge Prealigner Feed Roller 68 5 mm Auxiliary Feed Roller 68 5 mm Spacings other than the ones listed could be caused by damage or a bind in the gear train Residual Image Residual image the walking of a leftover image down the page is probably the result of failed erase lamps not discharging the photo conductor or of a failed cleaner inside the print cartridge It can also be caused by a failed fuser hot roll retaining toner and redepositing it on the page Check that the erase lamp voltage at engine board J9 1 is 24 VDC and that the cable has continuity To test the erase lamps jumper engine board J9 2 to ground Random Marks Random marks are nearly always due to a mechanical problem or due to foreign matter loose in the printer or in the print cartridge
52. ia Dom te oo ui 4 2 Envelope Restraint Spring On The Envelope Feeder Adjustment 4 2 Paper Restraint Spring On The 100 Sheet Auxiliary Feeder Adjustment 4 2 Envelope Feeder Magnet And 100 Sheet Auxiliary Feeder Magnet Adjustment 4 3 Dual Rear Feeder Gear Alignment Adjustment 4 4 Fuser Drive Gear Backlash Adjustment 4 5 Fuser Solenoid Adjustment 4 7 Paper Feed Magnet Adjustment 4 8 Printhead Skew Adjustment 4 9 Removal Procedures 4 10 DOUE nordica rs Er rr Ar DIAS 4 10 Right Cover Removal 4 10 Front Cover Removal 4 10 Left Cover Removal 4 12 Top Cover Removal ss essas seas weave dee wed 4 12 14 in 200 Sheet Paper Tray Top Cover 4 14 14 in 500 Sheet Paper Tray Top Cover 4 14 D roll Assembly Removal 4 14 Drive Motor Removal 2 222929 el 4 14 Engine Board Removal 4 15 Exit Sensor Board Removal 4 16 Fan Redrive Removal 4 17 Fuser Removal passara snb Es ede dd SN wd na 4 18 Fuser Input Guide Removal 4 19 Fuser Lamp Removal 4 20 Fuser Sensor Cable Removal 4 21 Fuser Solenoid Remova
53. inkage or a shorted electrical component Check for the indicated voltages at the LVPS connection to the engine board If no voltages are present remove the LVPS cover and check fuse F1 and the power switch before replacing the LVPS If some voltages are present but all are not correct disconnect all cables except the LVPS from the engine board POR and verify that 2 15 4049 XXX the LVPS voltages are correct Turn the power back off and one at a time reconnect the engine board cables powering on in between each connection and checking the voltages The connection which causes the voltages to be wrong indicates which component is bad Repair or replace the failing component or cable as necessary Duplex The duplex unit should home the front shafts should turn and the input deflector should move immediately when you install the duplex unit with the printer already powered on or just before the Ready screen is displayed when you POR the printer with the duplex unit installed This means the duplex unit and the printer are communicating and thus the printer engine board duplex unit sys tem board and the cables between them are all good If the duplex unit does not home immediately but homes after 5 or 6 seconds the duplex unit is receiving 34 VDC from the printer but is not communicating with the printer The duplex unit homes on its own as a signal that it is functional If the duplex unit does not home at all it
54. l 4 22 Fuser Shroud Assembly Removal 4 23 ml Rex Se atestado cdd dei 4 24 INA or Hard Disk Removal 4 26 Input Sensor Board Removal 4 26 Lower Frame Assembly Removal 4 28 vi Service Manual 4049 XXX Removal Procedures continued LVPS EE ct ars de dd id ain S 4 29 LVPS Cover Removal 0 0000000 4 30 Operator Panel Removal 4 31 Paper Feed Rollers Removal 4 31 Paper Feed Magnet Assembly Removal 4 32 Paper Size Switch Removal 4 33 Printhead Hem cierran ser as 4 34 RIP Board and Inner EMC Shield Removal 4 35 Toner Sensor Removal 4 35 Torquer Motor Removal 4 35 Transfer Roll Removal 4 36 Transfer Roll Housing Removal 4 37 Upper Frame Removal 4 38 Duplex Option Top Cover And Table Cover Removal 4 39 Duplex Option Exit Card And Cover Removal 4 40 Duplex Option Bottom Cover And Entry Sensor Card Removal 4 41 Duplex Option System Card And Motor Removal 4 42 Dual Rear Feeder Edge Guide Asm 4 43 Dual Rear Feeder Gear Plate Asm 4 43 Dual Rear Feeder Right Cover 4 43 200 Sheet Second Drawer Rt
55. la utililitzaci de components espec fics de Lexmark Les caracter stiques de seguretat d algunes peces pot ser que no sempre siguin bvies Lexmark no es responsabilitza de l us d altres peces de recanvi La informaci pel manteniment d aquest producte est orientada exclusivament a professionals i no est destinada a ning que no ho sigui El risc de xoc el ctric i de danys personals pot augmentar durant el proc s de desmuntatge i de servei d aquest producte El personal professional ha d estar ne assabentat i prendre les mesures convenients ZERM Ar in TERE HJ Lexmark 7H SEMA ETA BH JE Ze HERR MARA FESS FY EY BE AY EAS BE E ARKH RRS EEA Lexmark MIA AT ASPE m HI EPR AS RI A EA TMIEET RE FAA Armee ARAB AIR TESS TRUE A DE fh fes o E Am FARSA RARA PT TRE RR BEY TUG TE HE o Notices and Safety Information xxi 4049 XXX e ASE Lexmark ESA Lexmark ol
56. laserstr lning ver Klass I niv vid normal anv ndning underh ll som utf rs av anv ndaren eller annan f reskriven service tg rd Laser melding Skriveren er godkjent i USA etter kravene i DHHS 21 CFR underkapittel J for klasse 1 laserprodukter og er i andre land godkjent som et Klasse l laserprodukt i samsvar med kravene i IEC 825 Klasse l laserprodukter er ikke betrakte som farlige Skriveren inneholder internt en klasse Illb 3b laser som best r av en gallium arsenlaserenhet som avgir str ling i bolgelengdeomr det 770 795 nanometer Lasersystemet og skriveren er utformet slik at personer aldri utsettes for laserstr ling ut over klasse I niv under vanlig bruk vedlikehold som utfgres av brukeren eller foreskrevne serviceoperasjoner xiv Service Manual 4049 XXX Av s sobre el Laser Segons ha estat certificat als Estats Units aquesta impressora compleix els requisits de DHHS 21 CFR apartat J pels productes laser de classe 1 i segons ha estat certificat en altres llocs s un producte laser de classe que compleix els requisits d IEC 825 Els productes laser de classe no es consideren perillosos Aquesta impressora cont un laser de classe 1110 3b d arseni r de gal li nominalment de 5 mil liwats i funciona a la regi de longitud d ona de 770 795 nan metres El sistema l ser i la impressora han sigut concebuts de manera que mai hi hagi exposici a la radiaci laser per sobre d un nive
57. le Idling Printing C Less than 5 VDC Less than 5 VDC Fluctuates between pages 41 5 VDC Less than 1 VDC If any voltages are not correct replace the engine board If no problem is found enter the diagnostics mode and change the Charge Roll setting Users who run large jobs with very dense graphics in high humidity environments may get some print quality improvement from increas ing the Transfer setting users with more normal jobs will see no dif ference Make sure the HVPS contacts to the transfer roll housing are in good condition Black Page Black output is usually caused by an incorrect high voltage in the printing process resulting in toner development on the entire photo 2 13 4049 XXX conductor drum Check the condition of each HVPS contact and make sure they spring back when pressed Check the continuity of the HVPS cable Make sure the following voltages are correct if they are not replace the engine board Connector Voltage J13 5 to J13 4 24 VDC J13 6 to J13 4 24 VDC Run the Print Test with the RIP Board removed Make the following voltage checks while printing and again while idling If the voltages are not correct replace the engine board Voltage while Voltage while Connector Printing Idling J13 1 to J13 4 14 5 VDC 0 VDC J13 2 to J13 4 4 VDC 0 VDC If no other trouble is found replace the HVPS Blank Page Inspect the printhead shutter for proper operation and make
58. lines on a page that is supposed to be uniformly gray It is due to variation in the speed of the paper as it moves from roll to roll during development or transfer It is undetectable when printing text and is most noticeable on fine dot or horizontal line patterns such as the second page of Print Test 2 or Print Test 3 Inspect the gear train and the paper feed roll ers for wear damage dirt or binds Background Areas that are supposed to stay blank are getting small amounts of toner deposited on them Clean the erase lamps and the printhead window Verify that all the erase lamps are working by powering on or off with the top cover open Verify that there is 24VDC on engine board Diagnostic Information 2 12 4049 XXX J9 1 and between 15 and 20VDC on engine board J9 2 Shorting engine board J9 2 to ground should turn on all the erase lamps Check the erase lamp cable continuity Replace the transfer roll housing if the voltage and the cable are good Inspect the contacts on the HVPS make sure each spring loaded contact returns when pressed and released Rough Paper mode can cause background on some papers if Rough Paper mode is on turn it off and run the print test again Printing on coated paper or using refilled print cartridges can also cause background Run the Print Test with the RIP Board removed and check the follow ing voltages then stop the test and check the voltages again Connector voltage ME Voltage whi
59. ll de classe durant una operaci normal durant les tasques de manteniment d usuari ni durant els serveis que satisfacin les condicions prescrites Japanese Laser Notice FR 25 CO7TULZS5 iX OKEBICIDHHS 21 CFR 7F 7 7 J DI3AI 1 otk LeV ThA EC EHEN ATUEF EXXELACILIEC 82 5OK X4 ir L iz AIOL WATBZILEDEHSINTUETF 725XIO0Vv V 8iiiifslstEI7ZUCLXX SNT II Co SU LS YZ ZROb 3b OL F ZMNMKLT IEI CO L 4 14 HENTTO T95T72 5 088088 C BH 539977 707079 AIS MKIII L 9 73 COL YKTLETV I 9 14 BORE 2 FOA VFI VA R JE S ALI GO TE AKHKIZTFKIOLKIUEOL X ANE EI S5IC56omvoxo5ossiedsmcosv Notices and Safety Information xv 4049 XXX Chinese Laser Notice cm i LE 2 AS FT EN AN UE DHHS 21 CFR Subchapter IN FR I 1 BO6 dh ES R ME ME MLLKX WU UE amp IEC 825 I PR HE SET BOCA MUA ARRE E X FT EN SLA ah amp S or NI 3b BY 3 26 TPE EH S 5 SH SES KIIN N EM HEI El FE 770 795 nm ZA CIRE RT ENS RT ERE VE EE HEP EE US BU LE ME IE oP FETE A VR Be fb SI IE ES BUE Korean Laser Notice iso DHHS 21 CFR Subchapter 3 TAS IEC 825 1 1 5
60. main menu O O1 O N 3 13 4049 XXX Print Test 3 This test generates 2 printouts a solid black page and a dot pattern that can be used to evaluate print quality Print Test 3 will not duplex This test prints from the user selected default paper source if the default source is a tray or from Tray 1 if the default source is a feeder You can change the default source by selecting Paper Source in the Paper Menu After running the test reset the default source to the customer s selection Enter Diagnostics mode Select PRINT TESTS Select Print Test 3 Select Single or Continuous Select Cancel to stop continuous print Press Return to return to the Diagnostics mode main menu Quick Disk Test T E This is a one minute test which performs a non destructive write read on one block per track on the disk It tests the printer to disk communications and the disk hardware and circuitry but does only incidental testing of the disk surface itself The Quick Disk Test does not destroy data on the disk existing data is read and stored prior to the testing of each track and then rewrit ten after the track is tested Enter Diagnostics mode Select DEVICE TESTS Select Quick Disk Test The display will indicate Test Passed or Test Failed Press Return to return to the Diagnostics mode main menu a ES Quick Test The Quick Test is activated by pressing Ready from any screen while in Diagnos
61. mal marketing channels No paper feed If the Dual Rear Feeder is recognized by the printer Feeder 1 front tray and Feeder 2 rear tray will be shown on the Paper Source menu and on the diagnostics Paper Feed Test menu If it is not check the printer code levels see Note above and test the torquer J5 8 and J5 10 are inaccessible J5 8 may be measured on test point RXD and J5 10 may be measured on test point TXD 2 27 4049 XXX 000000 1 y J5 1 carries the pick signal for Feeder 1 J5 8 carries the pick signal for Feeder 2 and J5 10 is 34 VDC When the feeder is connected all three pins have 34 VDC For early level machines using the external J5 J10 adapter box J5 8 and J5 10 are 34 VDC J5 1 is 0 VDC and J10 1 and J10 2 are 34 VDC For all machines if the J5 10 and J10 1 voltages are incorrect replace the engine board If the other voltages are wrong continue with this service check To test the torquers short J5 1 Feeder 1 or the J5 8 test point Feeder 2 to ground the torquer rotates slightly and makes a noise Turn the power off and disconnect the feeder connector There should be 88 10 ohms between pins 1 and 10 and between pins 8 and 10 Reconnect the feeder and make sure neither J5 1 nor the J5 8 test point nor the J5 10 test point has continuity to ground Skews or Jams Check for worn dirty or damaged rolls gears or envelope bucklers obstructions in the paper path
62. ment VAC Volts alternating current VDC Volts direct current General Information 1 4 4049 XXX 2 Diagnostic Information Start Remove power from the printer before you connect or disconnect any cable or electronic board or assembly for personal safety and to prevent damage to the printer Two digit codes are messages for the user but if they recur fre quently or at inappropriate times they may be symptomatic of a ser vice problem Use the service error code symptom table service checks and diagnostic aids to determine the corrective action necessary to repair a malfunctioning printer 2 1 4049 XXX Refer to the diagnostics Error log for the last six machine errors 20 Paper Jam The input sensor was not unmade in time 21 Paper Jam The exit sensor was not made in time after the input sensor was made 22 Paper Jam The exit sensor was not unmade in time 23 Paper Jam Jam at the duplex unit Paper is either not leaving the duplex entry sensor in time or not making or unmaking the duplex exit sensor in time See Duplex on page 2 16 24 Short Paper The defined paper size is too short to print data as formatted 25 Incorrect Manual Feed Input sensor made at wrong time May be due to the paper feeding manually while motors running and previous page in path 26 Duplex Tray Missing Duplex unit is installed but paper tray is not sensed 27 Change Envelope Paper Envelopes paper loaded are wrong Size
63. n From a service standpoint models Lxi and Lxn are the same as Lx model Lxi is the same as Lx and model Rn is the same as R Models Lxi Lxn Lxi and Rn are not mentioned elsewhere in this manual The plus models have a different ROM SIMM RIP board and top cover and all have a maximum speed of 16 ppm There are no other hardware differences Processing speed and efficiency have been improved and scheduled maintenance has been eliminated 4049 XXX Power Consumption R L RUR Rt Rx Lx Lx Power Saver Mode 21W 20W Printing average 260W 310W Max AC draw 110V 6 8A 9 8A Max AC draw 220V 3 4A 5 0A Options The following options are available Some options are not available in every country Contact your point of purchase for options available in your country Memory upgrade options of 2MB 4MB 8MB 16MB and 32MB Flash memory options of 1MB 2MB and 4MB Integrated network options Token Ring Ethernet AppleTalk SCS IPDS 200 and 500 sheet paper trays of A5 letter and legal size 500 sheet second drawer with letter size paper tray Envelope feeder 100 sheet auxiliary feeder Duplex option Font cards bitmapped or scalable fonts 100MB Hard Disk Dual Rear Feeder Stat Alert Light High Capacity Feeder 1500 sheets General Information 1 2 4049 XXX Maintenance Approach The diagnostic information in this manual leads you to the correct field replaceable unit FRU or part Use the error code charis symp
64. nd approved to meet strict global safety standards with the use of specific Lexmark components The safety features of some parts may not always be obvious Lexmark is not responsible for the use of other replacement parts e The maintenance information for this product has been prepared for use by a professional service person and is not intended to be used by others e There may be an increased risk of electric shock and personal injury during disassembly and servicing of this product Professional service personnel should understand this and take necessary precautions Consignes de S curit e Ce produit a t con u test et approuv pour respecter les normes strictes de s curit globale lors de l utilisation de composants Lexmark sp cifiques Les caract ristiques de s curit de certains l ments ne sont pas toujours videntes Lexmark ne peut tre tenu responsable de l utilisation d autres pi ces de rechange e Les consignes d entretien et de r paration de ce produit s adressent uniquement un personnel de maintenance qualifi e Le d montage et l entretien de ce produit pouvant pr senter certains risques lectriques le personnel d entretien qualifi devra prendre toutes les pr cautions n cessaires xviii Service Manual 4049 XXX Norme di sicurezza Il prodotto stato progettato testato e approvato in conformita a severi standard di sicurezza e per Putilizzo con componenti Lexmark specifici Le
65. nostic Memory Test for DRAM POR the printer If the test fails or the problem recurs replace the DRAM SIMM 970 Network Card 1 Network card 1 processor failure Replace network card 1 970 Network Card 2 Network card 2 processor failure Replace network card 2 971 Network Card 1 Network card 1 RAM failure Replace network card 1 2 7 4049 XXX Error Code Explanation 971 Network Card 2 Network card 2 RAM failure Replace network card 2 972 Network Card 1 Network card 1 ROS FLASH failure Replace network card 1 972 Network Card 2 Network card 2 ROS FLASH failure Replace network card 2 973 Network Card 1 Network card 1 EEPROM NVRAM failure Replace network card 1 973 Network Card 2 Network card 2 EEPROM NVRAM failure Replace network card 2 974 Network Card 1 Network card 1 Network interface error Replace network card 1 974 Network Card 2 Network card 2 Network interface error Replace network card 2 976 Network Card 1 Network card 1 software error Verify that the network card is installed and grounded correctly If this error returns after a POR there is a soft ware or microcode incompatibility problem Do not replace the card Contact your next level of support 976 Network Card 2 Network card 2 software error Verify that the network card is installed and grounded correctly If this error returns after a POR there is a soft ware or microcode incompatibility problem Do not replace the car
66. of the sole noid leads Adjust the solenoid air gap see Paper Feed Magnet Adjustment on page 4 8 or replace the solenoid if necessary If no problem is found replace the engine board e The D roll will not move at all Either the engine board signal is Diagnostic Information 2 24 4049 XXX incorrect or the torquer motor or solenoid is defective Adjust the solenoid air gap see Paper Feed Magnet Adjustment on page 4 8 On torquer machines make sure the torquer gear is not slipping on the shaft Engine board J14 1 should always be 34 VDC J14 2 should be 34 VDC when the torquer or solenoid is not picking Short engine board pin J14 2 to ground and listen carefully for the torquer or solenoid it will move slightly and make a noise If it does replace the engine board e he D roll will move slightly but will not complete an entire revo lution This indicates a bind or defect in the gear train or a mis alignment of the torquer motor gear timing marks If paper is jamming clean the paper path of obstructions or repair any damaged parts Very thin or thick paper labels transparencies or card stock has a higher jam rate than regular xerographic paper Check the condition of the paper in the tray and verify that the tray is installed correctly If the paper feeds but stops undamaged in the paper path run the input and exit sensor test Check for 5 VDC at the input sensor engine board J9 6 and exit sensor engine board
67. page 2 30 934 Printhead Error Lost lock condition See Printhead on page 2 30 935 Printhead Error Mirror motor unable to reach operat ing speed See Printhead on page 2 30 941 ROM SIMM ROM SIMM failed CRC code data or font data Run the diagnostic Mem ory Test for ROM Replace the SIMM if the test fails or the problem recurs after POR replace the RIP Board if the SIMM does not fix the problem 944 RIP Board HIP processor failure Replace the RIP Board Diagnostic Information 2 6 4049 XXX Error Code Explanation 945 RIP Board ASIC 1 failure Replace the RIP Board 946 RIP Board ASIC 2 failure Replace the RIP Board 947 Engine Board Engine ASIC RAM failure Replace the engine board 948 Engine Board Engine ASIC electronics failure Replace the engine board 950 RIP Board SRAM failure Replace the RIP Board 951 Engine Board PQET SRAM failed verification test Replace the engine board 952 Engine Board Unable to zero PQET SRAM Replace the engine board 953 Engine Board NVRAM failure Replace the engine board 954 Engine Board Printhead crystal not functioning cor rectly Replace the engine board 960 Memory Error Bad or missing DRAM in the base DRAM slot Reseat the DRAM and run the diagnostic Memory Test for DRAM POR the printer If the test fails or the problem recurs replace the DRAM SIMM 961 Memory Error Bad DRAM in the optional DRAM slot Reseat the DRAM and run the diag
68. r is not being picked check for 34 VDC at J17 1 and J17 2 on the engine board Test the torquer by shorting J17 1 to J17 4 the Diagnostic Information 2 26 4049 XXX torquer moves slightly and makes a noise With the power off there should be 88 ohms between J17 1 and J17 2 and neither should have continuity to ground Remove the module and inspect the tray the D roll and the gear train Make sure the gear train is meshing with the drive gear at the bottom of the printer Check all mechanical areas and electrical con nections The Print Test with the RIP Board Removed can be run from the sec ond tray by disconnecting J14 and shorting J14 2 to J17 1 Paper Feed Problem Dual Rear Feeder Run the diagnostics Paper Feed for Feeder 1 and Feeder 2 Machine Level Information Early level printers do not support the Dual Rear Feeder without an upgrade If the feeder is not being recognized by the printer print the Print Menus test page and make sure the Base code level is at least 32 00 and the Engine code level is at least 43 42 On the early machines engine board connector J5 is wired differ ently These machines require the J5 J10 external adapter box in order to support the Dual Rear Feeder On the Print Menus test page machines which require the adapter have an Engine Card of 12 or 16 machines not requiring the adapter have 12 A or 16 A Upgrade kits containing code upgrades and the adapter box are available through nor
69. res de seguridad global usando los componentes espec ficos de Lexmark Puede que las caracter sticas de seguridad de algunas piezas no sean siempre evidentes Lexmark no se hace responsable del uso de otras piezas de recambio La informaci n sobre el mantenimiento de este producto est dirigida exclusivamente al personal cualificado de mantenimiento Existe mayor riesgo de descarga el ctrica y de da os personales durante el desmontaje y la reparaci n de la m quina El personal cualificado debe ser consciente de este peligro y tomar las precauciones necesarias Informa es de Seguran a Este produto foi concebido testado e aprovado para satisfazer os padr es globais de seguran a na utiliza o de componentes espec ficos da Lexmark As fun es de seguran a de alguns dos componentes podem n o ser sempre bvias A Lexmark n o respons vel pela utiliza o de outros componentes de substitui o As informa es de seguran a relativas a este produto destinam se a profissionais destes servi os e n o devem ser utilizadas por outras pessoas Risco de choques el ctricos e ferimentos graves durante a desmontagem e manuten o deste produto Os profissionais destes servi os devem estar avisados deste facto e tomar os cuidados necess rios xx Service Manual 4049 XXX Informaci de Seguretat Aquest producte est dissenyat comprovat i aprovat per tal d acomplir les estrictes normes de seguretat globals amb
70. se instructions Diagnostic Information 2 20 4049 XXX LAN Problems You cannot find a printer or network problem but jobs still do not print If the network card checks out successfully the problem may be with the hardware or software outside of the network card Below are some suggestions to the customer for checking hardware and soft ware for possible problems Refer the customer to the LaserPrinter Network Printer Utility Guide to find the problem e Make sure the network protocol you want is enabled from the printer operator panel e Verify proper print queue and printer driver configuration e Verify the adapter port has been associated e Verify correct installation of the software utility e Single route broadcast not supported across network bridge if bridge is used e Server problem check print server installation and configuration using the appropriate system guide to operations Light Print Light print is frequently caused by a worn out print cartridge Clean the transfer roll by powering on and off two or three times leaving the printer on for about two minutes each time Other causes are the same as for Blank Page See Blank Page on page 2 14 Make sure Print Darkness on the customer menu is set to Normal or Dark Increasing the diagnostics mode Print Contrast setting will darken print further PostScript emulation output may appear lighter than PCL emulation output or a test print this is no
71. splayed after a failure is displayed 10 Press Return to return to the Diagnostics mode main menu 11 Turn the printer off and remove the wrap plug from the interface connecior Other Tests Developed Image Test Use the Developed Image Test to isolate print quality problems You might have to practice this procedure several times to get the timing correct To run the Developed Image Test 1 Open the front exit tray 2 Print the test page 3 As soon as the leading edge of the paper is visible coming out the front exit slot turn off the printer 4 Remove the print cartridge and look at the image on the photo conductor LAN Information The printer may be connected to one of the following LAN types Token Ring Ethernet 10BASE T Ethernet 10BASE2 LocalTalk The printer test page indicates to which type of LAN the printer is connected The Network external connectors are shown below 3 17 4049 XXX COGO O O O OO Token Ring Ethernet 10Base2 Ethernet 10BaseT LocalT ak Print Test Page You can run the Print Test even if the printer is not attached to a computer Use this test to check print and graphics quality and the version numbers of printer microcode This test prints from the user selected default paper tray To run the Print Test Turn the printer on Select MENUS Select TESTS MENU Select Print Test Pagel Select either Single for one page or Continuous for continu ous test
72. sure the actuator on top of the cartridge is present and extends into the print head shroud when the printer top cover is closed A failed printhead will cause a 931 Service error rather than blank output Check the continuity of the HVPS cable The HVPS and transfer roll contacts should be clean and spring back when pressed Make sure the transfer roll contact under the left bearing is making contact with the HVPS Diagnostic Information 2 14 4049 XXX Run the Print Test with the RIP Board removed Make the following voltage checks Voltage while Voltage while Connector Printing ldling J13 1 to J13 4 Less than 5 VDC J13 2 to J13 4 Less than 5 VDC J13 3 to J13 4 Fluctuates between pages 1 5 VDC J13 8 to J13 4 Less than 1 VDC If the voltages are not correct replace the engine board Blurred or Fuzzy Print This can be caused by a damaged gear train or by paper slippage in the feed roll or transfer roll Also see Banding Inspect the HVPS contacts make sure each spring loaded contact returns when pressed and released Inspect the transfer roll housing contacts for damage or contamination Check the gear train for dam age binds or wear When using the 100 sheet auxiliary feeder some blurring may occur at the point where the feeder s friction rollers release the paper Dead Machine Possible causes no voltage reaching the printer LVPS failure blown LVPS fuse failure of the On Off switch or switch l
73. t Paper Feed Duplex Unit on page 2 25 Paper Feed Problem 500 Paper Feed Problem 500 Sheet Sheet Option or 200 Sheet Option or 200 Sheet Second Second Drawer Non Rt Drawer Non Rt on page 2 23 or Paper Feed Problem 200 Sheet Second Drawer Rt on page 2 26 Paper Feed Problem Enve Paper Feed Problem Envelope lope Feeder 100 Sheet Auxil Feeder 100 Sheet Auxiliary iary Feeder Feeder on page 2 26 Paper Feed Problem Dual Paper Feed Problem Dual Rear Rear Feeder Feeder on page 2 27 Paper Feed Problem 200 Paper Feed Problem 200 Sheet Sheet Second Tray Rt Second Drawer Rt on page 2 26 Paper Feed Problem High Paper Feed Problem High Capacity Capacity Feeder Feeder on page 2 29 Automatic Paper Size Sensing Automatic Paper Size Sensing Prob Problem lem Service Check 4049 XXX Regularly Spaced Marks Regularly Spaced Marks on page 2 32 Skew all edges Skew all edges on page 2 33 Skew top and bottom only Skew top and bottom only on page 2 33 Light Print Light Print on page 2 21 Blurred or Fuzzy Print Blurred or Fuzzy Print on page 2 15 Residual Image Residual Image on page 2 32 Background Background on page 2 12 Horizontal Void or Streak Horizontal Void or Streak on page 2 20 Vertical Void or Streak Vertical Void or Streak on page 2 34 Banding Banding appears as light and dark horizontal
74. t Auxiliary feeder Feeder 1 and Feeder 2 refer to the front and rear bins of the Dual Rear Feeder 1 Enter Diagnostics mode 2 Select PAPER FEED TESTS 3 Select Tray 1 Tray 2 Tray 3 Feeder Feeder 1 Feeder 2 or Manual 4 Select Single or Continuous 5 Select CANCEL to stop continuous 6 Press Return to return to the Diagnostics mode main menu Parallel Confidence This test requires specific PC software and is to be implemented with the assistance of Lexmark Technical Support It can be used to diagnose parallel port interface problems Permanent Page Count The permanent page count can be displayed only It cannot be mod ified or reset by the customer or servicer Enter Diagnostics mode Select PAGE COUNTS Select Permanent Page Count Press Return to return to the Diagnostics mode main menu A O N Print Contrast This setting varies the developer bias to vary the print darkness If the Print Darkness setting on the customer menu does not allow the darkness to be set correctly this setting can increase or decrease the entire darkness range Enter Diagnostics mode Select PRINTER SETUP Select Print Contrast Select Low Medium or High Press Return to return to the Diagnostics mode main menu 0O BON 3 11 4049 XXX Print Registration Use Print Test 1 or the Quick Test to evaluate print registration Adjust the registra
75. t a defect Verify on the Print Test that the print is too light before performing service Network Card 977 Errors All network card errors are recorded as 977 in the error log If there are 977 errors in the log POR several times and take the appropri ate action for the displayed error code 2 21 4049 XXX If the displayed error is 977 verify that the network card is installed and grounded correctly Remove the network card and check for 5 VDC at pin B24 of RIP board J6 or J12 whichever the network card was connected to If the voltage is incorrect replace the engine board if there is 5 VDC replace the network card Network Wrap Tests Token Ring with Shielded Twisted Pair Cable Disconnect the LAN cable from the electrical outlet leaving it connected to the printer network card Ethernet 10BASE2 Attach a 50 Ohm BNC terminator cap to each end of the T connector The customer may be able to provide this cap There is no wrap test for Token Ring with Unshielded Twisted Pair cable or for Ethernet 10Base T POR the printer If the printer completes POR successfully the printer network card and the port to the LAN are working correctly If the customer still has a problem printing see LAN Problems on page 2 21 Output Bin Sensor Examine the bin area for obstructions or damage Run the diagnos tic sensor test Make sure the plastic bails and guide are in good condition and that they guide the sensor flag out o
76. t performs a Power On Self Test Check for correct POST functioning by observing the following 1 One and one half rows of pels appear on the display and then clear Diamonds fill the display and then clear The fuser lamp and the fan turn on Performing Self Test appears on the display Note The printer may be idle for up to 60 seconds as the fuser warms to operating temperature Printer idle time is shorter if the fuser is already warm Note If the duplex unit is installed the duplex drive motor turns on for about five seconds just before the Ready screen appears The ready screen appears on the display Note Diagnostics menu appears if you are in diagnostic mode The drive motor and the mirror motor start The fan starts to run at high speed he drive motor runs for approximately ten seconds The fan runs at high speed then switches to low speed If the printer completes all these steps and no error messages are displayed the printer has successfully completed the POST Diagnostic Information 2 10 4049 XXX Symptom Table Dead Machine Dead Machine on page 2 15 Machine Hangs Displaying Machine Hangs Displaying Dia Diamonds monds Service Check Repeats a pattern of 5 beeps Operator Panel Problem on page and a pause 2 22 Operator Panel Operator Panel Problem on page 2 22 Paper Feed Base Printer Paper Feed Base Printer on page 2 23 Paper Feed Duplex Uni
77. the LVPS TRIAC is on J4 16 The voltage is O VDC when the lamp is to be on and 5 VDC when the lamp is to be off The lamp can be tested by briefly connecting this pin to ground Fuser 920 921 or 922 Error A 922 error during a POR caused by low line voltage can usually be cleared by doing another POR If the fuser lamp is lighting very dimly check for a 220 V lamp installed in a 110 V machine Check all the connectors to the exit sensor card and the lamp power connections at the left end of the fuser Make sure the thermistor is making contact with the hot roll Check the continuity of the lamp the thermal fuse and the fuser power cable Check the thermistor resis tance at engine board J8 3 to J8 4 it should be from 100K Ohms to 260K Ohms when cold it may be as low as 2 3K Ohms when hot but increases quickly as the fuser cools There should be no connection from either pin to ground If the thermal fuse is open the fuser and the fuser wiper may be damaged Before replacing the fuser and the fuser wiper check the voltage at engine board J4 16 as you POR again It should stay at O until the 922 Error is displayed and then go to 5 VDC if it does not replace the engine board the fuser and the fuser wiper Next mea 2 19 4049 XXX sure the voltage to the fuser lamp during a POR it should be line voltage until the 922 Error is displayed if it does not replace the LVPS the fuser and the fuser wiper If the voltage to
78. tics mode as well as being an entry under PRINT REGISTRATION It provides a simple page alignment pattern that prints faster than the other print tests Diagnostic Aids 3 14 4049 XXX Sensor Test A O N 6 Enter Diagnostics mode Select HARDWARE TESTS Select Sensor Test Select one of the following sensor tests Toner Low Output Bin Input Exit or Cover Open When the sensor is blocked Open is displayed Otherwise Closed is displayed Press Return to return to the Diagnostics mode main menu Top Margin and Duplex Quick Tests The Top Margin and Duplex Quick Test are used together to adjust the duplex front to back registration Make sure the non duplex page registration is correct before adjusting the duplex top margin A O N 5 Enter Diagnostics mode Select DUPLEX TESTS Select Top Margin Select or to raise or lower the back image 0 01 inches per increment Press Return to return to the Diagnostics mode main menu The Duplex Quick Test is used to verify the Duplex Top Margin O N Enter Diagnostics mode Select DUPLEX TESTS Select Duplex Quick Test 4 Press Return to return to the Diagnostics mode main menu There is some variation in the image position from sheet to sheet Print three or four test pages at each setting 3 15 4049 XXX Transfer This setting varies the transfer voltage offset slightly In normal envi
79. ting screw at the rear of the torquer Pivot the torquer up to disengage it from the gear Turn the torquer to its detented position Position the gear so the timing mark A is centered in the win dow 6 Pivot the torquer down install the front screw and tighten the rear screw keeping the timing centered in the window 01 5 O NR Repair Information 4 4 4049 XXX Fuser Drive Gear Backlash Adjustment Fuser drive gear backlash is adjusted so that when gear 2 is held still there is a slight amount of backlash in the fuser gear Print qual ity can be affected if the gears are too tight 1 2 Remove the fuser cover Locate gear 2 It is the white adjustable gear mounted to the side frame below the fuser gear Rotate the adjustable gear in one direction to check for back lash To adjust backlash 4 5 Loosen the nut on the idler stud Move the idler stud downward in its slot Insert a 0 95 mm 037 in feeler gage between the gear shoul ders from the front of the machine You may need to use an angled or very small feeler gauge With the nut snug but not tight tap the idler upward until the gage is snug between the gear shoulders Tighten the locking nut Check the clearance again tightening may have altered the adjustment Be sure the fuser gear can be rotated slightly when gear 2 is held still 4049 XXX Right Sideplate Idler Gear Fuser Gear Repair
80. tion so the tips of the diamonds are at the top and bottom edges of the page and the printout is centered left to right Verify that the top margin is correct before adjusting the bottom mar gin 1 Enter Diagnostics mode 2 Select PRINT REGISTRATION 3 Select one of the following Left Margin Top Margin Bottom Margin 4 The value of the margin you selected is shown 5 Margins e Left Margin can be set between 23 and 23 Changing the number by one moves the margin 1 75 inch Moving the number in a positive direction moves the margin toward the right and negative moves the margin to the left e Top Margin can be set between 20 and 20 Changing the number by one moves the margin by 1 75 inch Moving the number in a positive direction moves the margin down the page and widens the top margin Moving the number in a negative direction moves the text up the page and narrows the top margin e Bottom Margin can be set between 20 and 20 Moving the number in a positive direction moves the margin down and narrows the bottom margin Moving the number in a negative direction moves the text up the page and leaves a wider bottom margin 6 Select to move the number in a positive direction or select to move the number in a negative direction Select SAVE to save your settings when they are correct 7 Select Quick Test to check your settings 8 Press Return to return to the Diagnostics mode main menu Diagnostic
81. tions will only be present if those options are installed Menus with more than four items will use MORE on the fourth operator panel button to access the next screen of selections PRINT TESTS Print Test 1 Print Test 2 Print Test 3 Envelope Print Test PRINT REGISTRATION Left Margin Top Margin Bottom Margin Quick Test HARDWARE TESTS LCD Test Sensor Tests Toner Low 3 1 4049 XXX Output Bin Input Exit Cover Open Button Test Parallel Confidence Wrap Tests Parallel Serial Memory Tests DRAM ROM PAGE COUNTS Page Count Permanent Page Count Maintenance Count PAPER FEED TESTS Tray 1 Tray 2 Tray 3 Feeder Feeder 1 Feeder 2 Manual DUPLEX TESTS Top Margin Duplex Quick Test Duplex Feed 1 Duplex Feed 2 DEVICE TESTS Disk Test Clean Quick Disk Test Flash Test PRINTER SETUP Fuser Temperature Warm Up Time Diagnostic Aids 3 2 4049 XXX Envelope Enhance Auto Clean Auto Clean Frequency Auto Clean Delay Transfer Print Contrast Charge Roll Defaults ERROR LOG RESET PRINTER Diagnostics Mode Tests Auto Clean Auto Clean needs to be turned on if there is an unacceptable amount of toner being deposited on the back of the page When Auto Clean is on after printing the number of pages specified in Auto Clean Frequency the printer will pause the number of seconds specified in Auto Clean Delay This pause minimizes the toner accu mulating on the fuser cleaner 0O A O N Enter Diagnostics mode
82. tom index service checks and diagnostic aids to determine the symptom and repair the failure Begin with Start on page 2 1 This printer can be serviced without being connected to a host com puter After you complete the repair perform tests as needed to verify the repair Tools Required For Service 1 3 Flat blade screwdriver 1 Phillips screwdriver 42 Phillips screwdriver 5 5 mm nut driver 8 mm wrench Needlenose pliers Diagonal pliers Spring hook Feeler gauges Analog or digital multimeter Parallel wrap plug 1319128 Serial wrap plug 1329048 Twinax serial debug cable 1381963 Coax serial debug cable 1381964 4049 XXX Abbreviations ASIC Application Specific Integrated Circuit CSU Customer Setup DRAM Dynamic Random Access Memory EEPROM Electrically Erasable Programmable Read Only Memory EP Electrophotographic Process ESD Electrostatic Discharge FRU Field Replaceable Unit HVPS High Voltage Power Supply LAN Local Area Network LASER Light Amplification by Stimulated Emission of Radiation LCD Liquid Crystal Display LED Light Emitting Diode LVPS Low Voltage Power Supply NVRAM Nonvolatile Random Access Memory OEM Original Equipment Manufacturer PICS Problem Isolation Charts PIXEL Picture Element POR Power On Reset POST Power On Self Test PQET Print Quality Enhancement Technology RIP Raster Image Processor ROS Read Only Storage SRAM Static Random Access Memory UPR Used Parts Replace
83. uer possiblidade de acesso humano a radia o laser superior a um n vel de Classe durante a opera o normal a manuten o feita pelo utilizador ou condi es de assist ncia prescritas Laserinformatie De printer voldoet aan de eisen die gesteld worden aan een laserprodukt van klasse Voor de Verenigde Staten zijn deze eisen vastgelegd in DHHS 21 CFR Subchapter J voor andere landen in IEC 825 Laserprodukten van klasse worden niet als ongevaarlijk aangemerkt De printer is voorzien van een laser van klasse IIIb 3b dat wil zeggen een gallium arsenide laser van 5 milliwatt met een golflengte van 770 795 nanometer Het lasergedeelte en de printer zijn zo ontworpen dat bij normaal gebruik bij onderhoud of reparatie conform de voorschriften nooit blootstelling mogelijk is aan laserstraling boven een niveau zoals voorgeschreven is voor klasse 1 xii Service Manual 4049 XXX Lasermeddelelse Printeren er godkendt som et Klasse l laserprodukt i overenstemmelse med kravene i IEC 825 Klasse l laserprodukter betragtes ikke som farlige Printeren indeholder internt en Klasse IIIB 3b laser der nominelt er en 5 milliwatt galliumarsenid laser som arbejder p belgeleengdeomr det 770 795 nanometer Lasersystemet og printeren er udformet s ledes at mennesker aldrig udsaettes for en laserstr ling over Klasse l niveau ved normal drift brugervedligeholdelse eller obligatoriske servicebetingelser Huomautus laserlaitteesta
84. upply and door switch cables and reconnecting the line cord Check the tray height and door switches and all cable connections If the tray does not move at all check the elevator motor and the upper and lower limit switches Inspect the gears belts and shafts for mechanical damage or blockage The motor winding resistance is 36 ohms 2 ohms for the following pins 1 4 1 6 2 3 and 2 5 No pin should have continuity to the motor case and no pin should have a short to any other pin If the elevator raises normally but immediately reverses when the upper limit switch is made the paper out switch is not working If the elevator behaves normally but the printer does not become Ready the signal from the feeder ready switch is not reaching the printer Dead unit Check the printer Paper Source menu for a Tray 2 indi cation to be sure the printer detects the high capacity feeder Check feeder power supply input and output voltages If the output is cor rect pin 1 24 VDC pin 2 GND pin 3 5 VDC pin 4 GND replace the circuit board When replacing the circuit board check the A4 U S jumper to verify that the correct paper size is selected Be sure to plug each cable into the correct board connector Plug ging a cable into the wrong board connector can damage the new board or other components Printhead Note The printhead is a sealed unit It contains no internal parts that can be replaced or adjusted Verify the presence of the
85. ved While Printer needs data on removed card Printing 51 Defective Flash The printer detects a defective Flash SIMM If the error recurs replace the Flash SIMM 52 Flash Full Not enough flash memory for data requested to be stored 53 Unformatted Flash Flash problem at POR or while attempting to write 2 3 4049 XXX Error Code Explanation 54 Serial Error Framing or parity error on serial 56 Serial Port Disabled or Par Data has been sent to a port which allel Port Disabled has been disabled in the Setup Menu The port can be reactivated by entering the customer setup menu and selecting Serial Setup or Parallel Setup Serial Buffer or Paral lel Buffer and changing the setting from Disabled to Auto 57 Check Duplex Connection The duplex unit has been electrically disconnected from the printer but the printer top cover is not open Check the auto connect plugs on the duplex unit and the printer 58 Duplex Not Attached Duplex is no longer connected and printer top cover is closed 59 Duplex Cover Open Top cover of duplex unit is sensed open 62 Disk Full Not enough disk space for data that has been requested to be written to disk 63 Unformatted Disk Format the disk 64 Defective Disk The printer will ignore a disk it senses as defective Run the Quick Disk Test If the test fails the disk is defective or the data on track 1 is bad If the Quick Disk Test passes but the disk does not work run the Disk

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