Samsung ML-1651N User's Manual
Contents
1. 550SHEETS Only 1650 XIL OO CO O oloo JO O O O O O O O O O JO O O O O O O O O O C OO O O O O O O O gt O O O O O O O O O O O OJO O O 5 2 Samsung Electronics Exploded Views and Parts List ELA HOU HOUSING RANK PMO COVER MAIN 1650 JC96 01590V 72 003300 JC96 02235A 072 0030W 16 JC96 01590W 072 0030 6 JC96 01590Z 72 00330 6 JC96 01590X 72 00330 JC9601590V 72 003300 MLT65INIXG JC96 02235A 72 00330 16 JC96 01590V 72 003300 6 JC96 02235A 72 00330 1650 JC96 01590V 72 003300 ML 65INXEU JC96 02235A 72 00330 ML 1650XIL JC96 01590Y J063 00075A 096022758 72 03307 JC96 02235A JC72 00330W Samsung Electronics 5 3 Exploded Views and Parts List 5 2 All Exploded Views and Parts List 5 2 1 Cover Exploded View NO Description Qty 0 ELA HOU COVER MAIN 1 1 14 PMO COVER OPEN 12 PMO COVER MAIN 1 3 STOPPER HINGE OP2. Samsung Electronics 3 15 Disassembly and Reassembly To replace the actuator feed To remove the transfer guide 1 Turn the mechanism back and push down the Remove three screws and take the guide out points as shown to unlatch the actuator feed 2 Turn the unit over again and remove the actuator feed 3 16 Samsung Electronics 4 Troubleshooting Troubleshooting 4 1 How to use DCU 4 4 The cause and solution of the malfunction 4 1 1 DCU Setup Page 4 2 4 4 1 All LEDs blinking Fuser Error Page 4 17 4 1 2 Code Page 4 2 4 4 2 All LEDs blinking SCAN ERROR Page 4 17 4 1 3 Self Diagnostic Page 4 3 4 4 3 Not function of the gear of the fuser due to 4 1 4 Self Test Page 4 4 MENN E Paget 18 4 1 5 Paper Path Layout Page 4 4 4 4 4 Paper Empiy Page 4 18 4 1 6 DCU Panel aaa Page 4 5 IID WihoutNdcanon s 19 4 4 6 Cover Page 4 19 4 2 The cause and solution of Bad image 4 4 7 No lamp on when the cover is M 19 Pel ee 4 4 8 Defective motor operation Page 4 20 4 4 9 No Power Page 4 20 4 2 3 Horizontal
3. 3 8 Samsung Electronics 3 12 Drive Assembly 1 Before you remove the drive assembly you should remove Main Cover see page 3 5 Fan see page 3 9 2 Remove four screws securing the drive assembly from the gear bracket and unplug one connector from the motor and then take the drive assembly out 3 If you want to remove the motor assembly from the drive assembly remove five screws securing the motor assembly to the gear bracket lt E a gt gt Disassembly and Reassembly 4 If you want to remove the step motor remove four screws securing the step motor from the motor bracket and unplug two connector from the motor 5 If you want to remove the motor joint PCB remove two screws securing the motor joint PCB from the gear bracket and unplug one connector from the motor joint PCB Samsung Electronics 3 9 Disassembly and Reassembly 3 13 Fuser Assembly 1 Before you remove the fuser you should remove To remove the thermistor from the fuser assembly Main Cover see page 3 5 Remove one screw and release the wire from the three holders and then take the thermistor out 2 Remove four screws and unplug one conne ctor and then remove the fuser assembly To remove the thermostat from the fuser To remove the halogen lamp from the fuser assembly assembly Remove two screws and take the thermostat out Remove two sc
4. Samsung Electronics 3 3 Disassembly and Reassembly 3 4 Pickup Assembly 1 Turn the printer upside down Remove four 4 Take the assembly out screws then remove the bar cross bottom Push the solenoid if you have difficulty to remove the pickup assembly 2 Remove three screws from the left base bracket and take the bracket out 5 Check the pickup rubber wear If the rubber is heavily worn replace it with a new one 3 Remove four screws securing the pickup assembly Squeeze this tab to remove the rubber 3 4 Samsung Electronics Disassembly and Reassembly 3 5 Main Cover 1 Remove two screws and remove the controller 4 Remove two screws securing the main cover cover 2 Remove two screws at the back of the printer and 5 Unlatch the front ends of the cover unplug one connector from the board then open the rear cover Note that the power switch and the power connecter are properly released when remove the cover Samsung Electronics 3 5 Disassembly and Reassembly 3 6 Multi Purpose Tray 1 Before you remove the MP tray you should remove Main Cover see page 3 5 2 Remove the stoppers securing the MP tray 3 7 Exit Assembly 1 Before you remove the exit assembly you should remove Main Cover
5. AN Si Sa Samsung Electronics 5 9 Exploded Views and Parts List 5 2 7 Pick Up Exploded View NO Description Q ty 0 MEAUNIT FEEDER 1 1 SCREW TAPTITE 1 2 WASHER PLAIN 4 SPRING FEED 1 1 4 SPRING FEED 2 1 5 BEARING PICK UP 4 6 GEAR P UP DRIVE 1 7 GEAR FEED 1 8 GEAR PICK UP 12 1 9 IPR SHAFT FEED 1 10 IPR SHAFT FEED IDLER 3 11 IPR SHAFT PICK UP 1 12 GROUND_FEED 1 13 IPR GUIDE FEED 16 1 14 PMO HOUSING P UP 1 15 PMO ROLLER FEED L 2 16 PMO ROLLER FEED S 1 17 PMO SUBHOLDERFEED 1 18 PMO FRAME FEED 1 19 PMO HOLDER FEED 1 1 20 PMO HOLDER FEED 2 1 21 PMO IDLE PICK UP 1 22 PMOROLLFEEDDRVi2 1 23 RMO RUBBER PICK UP 1 24 RMOLEVERPICK UP 1 25 SPRING PICK UP 12 1 26 RING CS 1 15 10 5 10 Samsung Electronics 5 2 8 Cassette Exploded View NO Description Qty 0 MEA UNIT FEEDER CST 500 1 1 PMO COVER GUIDE EXT 1 2 PMO FRAME CASSETTE 1 3 PMO GUIDE EXT CST 1 4 PMO GUIDE PAPER 1 5 PMO GUIDE SIDE CST 1 6 PMO INDICATOR EMPTY 1 PMO SIDE GUIDE EXT 1 8 PMO SUB GUIDE CAST 1 9 PMO HOLDER_INDICATOR 1 10 PLATE 1 1 IPR FINGER 1 12 IPR GUIDE EXT LOCK 1 13 IPR GUIDE PAPER SCF 1 14 IPR GUIDE PLT PAPER 2 15 IPR PLATE KNOCK UP 1 16 IPR PLATE SPR LOCK 1 17 IPR SPR PLT G SIDE 1 18 SPRING PLATE K UP 1 1 19 SPRING PLATE K UP 2 1
6. uuu LASER PRINTER ML 1650Series ML 1650 ML 1651N SEHR VICE Manual LASER PRINTER CONTENTS 1 Precautions Specifications Disassembly and Reassembly Troubleshooting Exploded Views and Parts List Block Diagram N 2 m Ww N Connection Diagram Electronics This service manual is also provided on the web Samsung Electronics Co Ltd September 2001 the ITSELF system f Samsung Electronics Co Ltd Printed in Korea http litself sec samsung co kr VERSION NO 2 00 CODE JC 0055A This manual is stated and provided for service description All rights reserved Any parts of the information in this manual are prohibited from free duplication use or translation without prior written approval except in cases allowed by the Copyright Act Specifications are subject to change without prior notice Samsung Electronics Digital Printing CS Group Copyright c 2001 6 Precautions 1 Precautions Please read the following carefully to prevent any accidents and not to damage the unit during service 1 1 Safety Precautions Read each caution carefully Especially mind the safety on the part with 1 Do not use this printer near water or when exposed to this mark inclement weather You must use regular parts described in specifi 2 Do not place this printer on an unstable cart stand or cations for the parts inflammable and where the table the product
7. 1 Replace the SMPS 2 Reassemble the Actuator Feed and Spring Actuator if the returning is bad e Description 1 Recording paper is jammed in front of or inside the fuser 2 Recording paper is stuck in the discharge roller and in the fuser just after passing through the Actuator Feed Check and Cause Solution 1 If the paper is completely fed out of the printer but Jam 2 occurs Exit sensor is defective After the paper is completely dis charged actuator Exit should return to the original position to shut the photo sensor Sometimes it takes longer hour than it should and does not return 2 If the paper is rolled in the Fuser Roller This occurs when a Guide claw is broken away or transformed t occurs when the Spring of a Guide claw is broken away or transformed e t occurs when Heat Roller or Pressure Roller is seriously contami nated with the toner 3 Paper is accordion in the fuser 1 Check if the exit sensor actuator is defective Check if the actuator exit is unformed Check if the lever part is unformed in shape Check whether burrs occur in the assembly part of the actuator exit or not and if the actuator is smoothly operated Check if foreign matters and wire get caught in the actuator exit s operation If the paper is stuck in the fuser dis assemble the fuser and remove the jammed paper and clean the surface of the pressure roller
8. Ww m 38 Engine PANEL 8Pin Engine Controller OP Panel OPTION Network Card To HVPS amp LSU Block Diagram 6 2 Engine Block Diagram PROGRAM MEMORY 270512 245 KS88C4616 11 59158MHz 245 2nd cassette Feeder option VIDEO CONTROLLER Interface HVPS control THV READ THV MHV DEV PWM STEP MOTR DRIVER TEA3718 for Main Motor amp 2916 for Sub Motor SOLENOID DRIVE MAIN CLUTCH MP CLUTCH lt coma Thermister value PTL CPU Clock X tal 11 59158MHz 6 2 7 Connection Diagram a Micro Switch Board 12 GND 5 I V IIV Second Cassette i Out 24VS 4 5 H Them istor ee 15 _24 Feeder Option r 16 GND 24 I7 24VS 18 245 19 24 2 1 Main Motor L 3 Motor1_PB 4 Motor1_PB 1 B d 1 24 5 Exit C E Exitsigna c22 J _____ 12 MP SOL j MP Solenoid Sensor j GND 5 H READY Connector P SE 12 nEBSY 9 Joint B d PN I Size Detect 13 86 H 10 MTR _
9. 12 SIZE2 ize Detector 14 CCLK 11 SIZE2 J 13 SIZE3 I Sensor 15 nCM SG P RAM_DIMM r I6 nESYNC 13 SIZE8 S ae 7 nPRINT s Option for RAM_Expand 8 N C 9 THERM1 ROM_DIMM 110 THERM2 cE MET YL Option for Demo_SIMM t P 5 41 b B eK 18 19 DGND ti ee CN25 EET 1 GND 11 12 2 Output_Full 13 M 3 T_SNESOR 14 5 25 s 16 6 ie 12 18 6 Micro Switch 12 1 For LSU 5VS Cut 12 12 SUB_MOTOR SUB MOTOR 15 JOINT 12 4 1 CN21 12 LSU 13 1 5 DEV PWM CN26 5 7 T_SENSOR 18 Reserved 1 I9 Reserved 1 sa 25 7 11 N C 2 3 5 4 10053 5 D31 6 D30 SMPS B d I5 LED3 17 029 8 GND5 9 028 10 027 11 026 ane Panel B d I ED CN 18 112 GND5 13 D25 14 024 15 EIRQ1 16 GND5 17 117 5 18 A4 19 20 EIRQ0 21 A2 22 023 Network li 1 1 8 123 022 24 A17 25 021 26 A16 27 020 28 A15 111 GND24 27 129 D19 30 A14 31 D18 32 A13 MF Card 11 133 017 34 A12 35 016 36 A11 37 A6 38 10 113 GND24 139 RESET 40 A9 41 WAIT 42 43 IOCS3 Option 114 24 26Pin 144 45 1OCS3 46 N C 47 48 GND5 115 FUSER ON focum P1284 Con 149 A18 50 RD 51 52
10. 361 x 409 x 294 5 mm Weight 12 4 Kg 27 3lb SET Acoustic Noice Stand by Less than 35 dB Operating Less than 49dB Power Rating AC 100 127V 50 Hz AC 220 240V 60 Hz Controller Processor Power PC 166 MHz Memory RAM Standard 16Mbyte Option DIMM Module 16 32 64 128M byte ROM 4 Mbyte 16M bit x 2 Program Flash Memory EEPROM 512 bytes Emulation PCL6 PS 3 Option Interface IEEE1284 USB Network OS Support Windows 95 98 2000 Me NT Linux Radhat 6 0 7 iMac Mac OS 8 0 7 NW Option Default Cassette 550 sheets 75g m2 MP Tray 100 sheets 75g m2 20 sheets OHP 10 sheets Letter card 25 sheets Label Output Face down 250 sheets Face up 100 sheets Media Type A4 Letter Legal Executive B5 5 Folio 7 3 4 Monarch 10 DL C5 C6 B5 Type Single Cartridge Life 8 000 sheets Set 4 000 sheets Cartridge 8 000 sheets Set 4 000 sheets Pick up Roller 60 000 sheets Feed Roller 60 000 sheets Transfer Roller 125 000 sheets Fuser 40 000 sheets User interface Key amp LED 4LEDs LCD No Toner Save YES Reprint YES Button Samsung Electronics 2 1 Specifications ML 1650 ML 1651N Environment Operation Environment Temperature 10 32 c 50 F
11. GND5 53 N C 54 116 FUSER 24 I suttal Heat Lamp Fuser Api 155 EIRQ1 56 GND5 57 N C 58 5V 59 5V 60 5V d USB Jack G0 pinuConnecton In Let 110V for USA 220V for EU
12. see page 3 5 2 Remove the exit tray in the direction of arrow 3 4 If you want to remove the roller shaft unlatch both ends of the shaft and take it out If you want to remove the exit roller squeeze the bottom of the roller and take it out 3 6 Samsung Electronics 3 8 LSU 1 Before you remove the LSU you should remove Main Cover see page 3 5 Exit assembly see page 3 7 2 Remove five screws and remove the LSU Then unplug two connectors from LSU 3 9 HVPS board 1 Before you remove the HVPS board you should remove Main Cover see page 3 5 2 Remove four screws and take the HVPS board out Disassembly and Reassembly Samsung Electronics 3 7 Disassembly and Reassembly 3 10 Fan 1 Before you remove the fan you should remove Main Cover see page 3 5 2 Remove two screws securing the connector cover and harness bracket from the gear bracket 3 11 Solenoid 1 Before you remove the solenoid you should remove Main Cover see page 3 5 2 Remove two screws and remove the solenoid Then unplug one connector 3 Remove one screw and remove the fan Then unplug one connector emet
13. 90 F Humidity 20 80 RH Storage Environment Temperature 200 40 4 F 104 Humidity 10 90 RH Network Operating Systems Windows 95 98 and Windows NT 3 51 4 x Netware 3 x 4 x NDS and Bindery Mode RPRINT PSERVER Mode UNIX and Apple Talk Network Network Protocols Supported TCP IP Windows 95 98 Windows NT UNIX IPX SPX Windows 95 98 Novell Netware DLC LLC Windows 95 98 Windows NT Ethertalk Apple Talk SNMP for Network Printer Administration Network Card Interface Ethernet 10 100 BaseTX Auto Negotiation Network Management S W Samsung s Admin Software Utility SyncThru SNMP and MIB II Support GUI based utility for Windows Systems and Test based utility for UNIX Systems HTTP server for web browser based network manage ment can manage NPC and printer options on Web Browser 2 2 Samsung Electronics Disassembly and Reassembly 3 Disassembly and Reassembly 3 1 General Precautions on Disassembly When you disassemble and reassemble components you must use extreme caution The close proximity of cables to moving parts makes proper routing a must If components are removed any cables disturbed by the procedure must be restored as close as possible to their original positions Before removing any component from the machine note the cable routing that will be affected Whenever servicing the machine you must perform
14. Cartridge 7 One way Screw a Capacity indication Label Genuine Label Du The prevention of disassembly 8 One way Screw 4 22 Samsung Electronics 4 5 4 Signs and Measures at Poor toner cartridge Fault Signs Cause amp Check Troubleshooting Solution Light image and partially blank image The life is ended printed image is light or unclean and untidy Some part of the image is not print ed Periodically a noise as tick tick occurs 1 If the image is light or unclean and untidy printed image Shake the developer and then recheck 1 NG Check the weight of the developer 2 OK Lack of toner so the life is nearly closed 2 Some part of image is not printed Shake the develop er and then recheck 1 NG Check the weight of the developer and clean the LSU window with a cotton swab then recheck 2 OK Lack of toner so the life is nearly closed 3 Periodically a noise as tick tick occurs Measure the cycle and the weight of the developer 4 White vertical stripes on the whole screen or partly Check the weight of the developer 1 All of 1 2 3 above If it become better by shaking replace with a new developer after 50 100 sheets in the clos ing state of the life span Incase of 2 If it becomes better after clean ing the LSU window then the developer is normal Because of foreign substance on the LSU wind
15. Recommend to use normal paper 2 How to remove the rolled paper in the OPC Remove the paper while turning the OPC against the ongoing direction Clean fingerprints on the OPC softly with soft cloth dampened with IPA Isopropyl Alcohol or tis sue 4 16 Samsung Electronics Troubleshooting 4 4 The cause and solution of the malfunction 4 4 1 All LEDs blinking Fuser Error 1 All the lamps the operator panel blink Description 2 Gear of the fuser does not work and breaks away melt away When printing motor breaks away from its place due to defective fuser gear Check and Cause Solution 1 Check if the thermostat AC wire and Heat Lamp is 1 If the thermostat is open replace the fuser and open check following items 2 Check if the thermistor sensor is in place 2 If the thermistor sensor device is located deep in the Sponge replace the fuser 3 Check if the heat lamp works properly 3 Check if the circuit of overheat mode works properly 4 Check if the overheat circuit works properly 4 Run DCU mode Perform DCU diagnostic code 10 5 The fuser gear is defective due to melting away 4 4 2 All LEDs blinking Scan Error e Description 1 All lamps on the operator panel blink Check and Cause Solution DCU Mode Perform DCU diagnostic code 05 If the DCU Replace LSU error code 95 is displayed replace LSU If you cannot solve the problem after you replace LSU replace t
16. as follows 1 Remove the paper cassette s and the print cartridge Do not expose the cartridge to direct room light or sun light and be careful not to scratch the drum surface Turn the power switch off Unplug all the cables from the printer Replace with only an authorized component Do not force to open or fasten a plastic material component Be carelul no obstacles are included when you reassemble components When reassemble components be careful small size components are located in place If you turn the machine over to replace some parts toner or paper particles may contaminate the LSU window Protect the LSU window with clean paper Releasing Plastic Latches Many of the parts are held in place with plastic latches The latches break easily release them carefully To remove such parts press the hook end of the latch away from the part to which it is latched Samsung Electronics 3 1 Disassembly and Reassembly 3 2 Transfer Roller 1 Open the printer cover 3 Hold the cap at the both end of the roller then remove the roller 2 Remove the cap 3 2 Samsung Electronics Disassembly and Reassembly 3 3 Controller Board 1 Remove two screws and remove the 2 Remove five screws securing the board and controller cover unplug all connectors and then take the controller board out of the printer
17. off The paper has passed out of the Feed Sensor 50 Paper Out The paper has passed out of Exit Sensor 69 Sleep Mode The fuser power turned off to minimize the power consumption Error Code When detecting the malfunction the printing is stopped to indicate error code 60 62 68 Fuser Error The error in the fuser occurred There is a short circuit in the thermistor and the thermostat while printing Low Temperature Error occurs 60 Open Fuser Error 62 Low Heat Error 68 Over Heat Error 64 Cover Open The Printer Cover is open 65 CRU Error The Toner Cartridge not installed 70 No Paper No paper in the paper cassette 71 Paper Jam 0 The front part of paper is jammed between pickup unit and Feed sensor 72 Paper Jam 1 The front part of paper is jammed between the Discharge sensor and Feed sensor 73 Paper Jam 2 The front part of paper is jammed just after passing through the discharge sensor 76 Out Bin Full The Out bin is filled with paper 95 LSU Not Ready LSU Scanner Motor not ready or Hsync signal not output 4 2 Samsung Electronics Troubleshooting 4 1 3 Self Diagnostic Mode If Error code occurs due to malfunction of the printer perform Self Diagnostic Mode to solve the problem The printer works only in the self test mode to solve the malfunction problem To enter the self test mode turn the power on pressing the buttons of Down Shift and Stop at the same time Release t
18. the image period ically 1 If light or dark periodical black dots occur this is because the developer rollers are contami nated with foreign substance or paper particles 1 38 5mm interval Charged roller 2 96mm interval OPC cycle 2 If white spots occur in a black image at intervals of 96mm or black spots occur elsewhere the OPC drum is damaged or foreign substance is stuck to the surface 3 If a black and white or graphic image is partially broken at irregular intervals the transfer roller s life has been expired or the transfer voltage is abnor mal 1 In case of 1 above Run OPC Cleaning Mode Print 4 5 times repeatedly to remove Especially check foreign sub stance on the OPC surface then remove them with a clean gauze moistened with IPA Isopropyl Alcohol not to damage OPC if necessary A Never use usual alcohol In case of 2 If they are not disappeared by running OPC Cleaning Mode Print 4 5 times at intervals of 38 5mm Replace the developer at intervals of 96mm Remove foreign substance Broken image Replace the developer according to care lessness In case of Exchange the transfer roller because the life of the transfer roller in use has been expired Check the transfer volt age and readjust if different Recycled product Poor appearance of the developer Unclean and rough printouts Bad background in the image 1 Poor appeara
19. while pressing the test printing button for 2 or 3 seconds before printing works 2 Check if the PC and the printer is properly connected and the toner cartridge installed 3 Printing is nor working in the Windows 4 Check if the printer cable is directly connected to periph eral devices 1 Check the power of the printer and perform the Self Test If the test printing works that means no prob lems in the printer itself If the test printing does not work that means bad functioning of the printer not because of software Perform DCU to check the Error Status 2 Replace the printer cable If the problems not solved even after the cable replaced check the amount of the remaining tone refer to Toner Cartridge Service 4 5 Check if the connection between printer port is proper If you use windows check if the printer dri ver in the controller is set up If the printer driver is properly set up check in which program the printing is not working The best way to find out is to open the memo pad to check the function of printing If it is not working in a certain program adjust the setup the program requires Sometimes the printout is normal within the Windows basic programs but it s not work ing in a particular program In such case install the new driver again If not working in the Windows basic program Check the setup of the port of CMOS is on ECP And check the address of IRQ 7 and 378 4
20. 20 SPRING LOCKER PLATE 1 21 RPR PAD CST 1 22 GUIDE PAPER SIZE 1 23 SCREW TAPTITE M3 x 10 NI 7 24 LABEL R CASSETTE 1 25 GUIDE PAPER DUMMY 1 Exploded Views and Parts List Samsung Electronics 5 11 6 Block Diagram 6 1 Video ControllerBlock Diagram 100 DIMM 29LV 160 16Mbit Flash Memory 29LV 160 16Mbit Flash Memory Mask Font ROM K3P5V 1000D GC High Mask Font ROM K3P5V 1000D GC Low nWR FWRE 100PIN DIMM 64Mbit SDRAM K4S641632C 64Mbit SDRAM K4S641632C C7733 32 ADDR 2 22 SDRAM CAS SDRAM RAS BAO BA1 SDRAM SDRAM CS 0 1 SDQM 0 3 SD CLK 1 2 CL KE ai DAT 0 31 ADD R 0 31 DATA 0 31 32 Regulator 2 7V RD_FLASH WR FLASH1 2 3 CPU POWER PC 32 TS TT1 nTSB ToTSIZ 0 2 RST INT nTS PPC603ei 166 Hz RCS 0 3 FS781 Frequency Scaling EMI Attenuator System clock 11 1M Hz OSC nFSYNC VCLK Video Clock 61 23307M Hz SPGPi Memory Data Bus DRAMD 0 3 1 Memory Address Bus DRAMA 0 1 1 11 10129UU0 YOMJON uld09 EIRQ 0 3 nl OC S 0 5 ag S RESET Supply Voltage Supervi sor Centronics 7TAACT245 THV_PWM MHV PWM PWM THVEN LDON PMOTOR LSUCLK nVIDEO ACK BUSY SELECT ERROR FAULT PD 0 7 LREADY LSYNC Transceiver DATA 0 7 Ioc 5 74HCT 273 D Flip Flop o 2
21. 7 01338J MEA RACK HOU EXIT JC97 01338K PMO HOLDER LEVER JC72 00631A PHOTO INTERRUPTER 0604 001095 PMO LEVER STACKING JC72 41188F PMO DUCT FAN JC72 00627A MAIN MOTOR JOINT JC92 01310A 110112201 f MEA RACK CAST SCF 110V DESCRIPTION SEC CODE REMARK ELA HOU HOUSING HAWK16 refer to the table PMO COVER OPEN JC72 00628A PMO COVER MAIN refer to the table PMO STOPPER HINGE OPEN JC72 00482A PMO LENS LED JC72 00365A PMO KEY BUTTON JC72 00499A PBA SUB PANEL SEC JC92 01208D PMO COVER REAR JC72 00355A PMO STACKER REAR JC72 00356A PMO COVER CONTROLLER JC72 00358A MEA UNIT MP TRAY JC97 01325A PMO COVER MP JC72 00349A PMO TRAY LINK MP JC72 00350A MEAUNIT BRKTBOTTOM L JC97 01315C FOOT RUBBER JC61 40001A MEA UNIT BRKT BOTTOM R JC97 01316A FOOT RUBBER JC61 40001A UNIT LSU M JC59 00013A ELA UNIT MOTOR 16 JC96 02057A MOTOR STEP 7 5 DEG JC31 00002A MOTOR STEP JC31 00009A ELA UNIT DEVE ELA HOU MPF JC96 01650A PHOTO INTERRUPTER 0604 001095 SOLENOID HAWK JC33 00003A RPR RUBBER JC73 10907A UNIT FEEDER CST 500 JC97 01466C CBF HARNESS MOTOR JC39 00157A MEA UNIT FEEDER JC97 01324B RMO RUBBER PICK UP JC73 40907A PMO CAP SENSOR JC72 00320A ELA HOU ENGINE JC96 02113A ELA HOU ENGINE JC96 02114A SHIELD PCU JC70 00080A PCT INSULATOR PCU JC72 00334A PBA MAIN ENGINE JC92 01302A
22. Black Band Page 4 7 44 10 Vertical Line Getting Curved Page 4 21 4 2 4 Black White Spot Page 4 7 4 2 5 Light Page 4 8 4 2 6 Dark Image or a Black Page 4 8 4 5 Toner Cartridge Service 4 2 7 Uneven Density Page 4 9 Pecados on ol Tone Carnage Fee Page 4 22 4 2 9 Ghost 1 Page 4 10 4 5 2 Service for the Life of Toner Cartridge 4 2 10 Ghost 2 Pade A lQy Page 4 22 4 2 11 Ghost 3 Page 4 11 4 5 3 Service for Judgement of Inferior Expendables 4 2 42 Ghost 4 Page 4 11 and the Standard of Guarantee Page 4 22 4 2 13 Satins on the Face of Page 4 11 4 5 4 Signs and Measures at Poor 4 2334 Saline on Back oF Pagea canh NN age 4 23 4 2 15 Blank Page Print out 1 Page 4 12 4 2 16 Blank Page Print out 2 Page 4 12 ie Tke cause and environment of the software 4 6 1 The printer is not working 1 Page 4 26 4 3 The cause and solution of the bad discharge 4 6 2 The printer is not working 2 Page 4 27 4 3 1 Wrong Pr
23. Black Band Troubleshooting Description 1 Dark or blurry horizontal stripes occur in the printing periodically They may not occur periodically Digital Pri Digital Printer Digital Printer Diaital Pri Check and Cause Solution 1 Bad contacts of the voltage terminals to developer 2 The rollers of developer may be stained 1 Clean each voltage terminal of the Charge Supply Develop and Transfer roller remove the toner particles and paper par ticles 2 Clean the right Gear that has relatively Charge roller 38 5 small gap of the teeth in the OPC Supply roller 51mm Develop roller 50mm Transfer roller 56 8 3 If the malfunction persists replace the developer 4 2 4 Black White Spot 1 Dark blurry black occur periodically the printing Description 2 White spots occur periodically in the printing Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Check and Cause Solution cally the rollers in the Developer may be contaminated with foreign matte or paper particles Charge roller 38 5 mm interval OPC drum 96 mm interval 2 If faded areas or voids occur in a black image at intervals of 96 mm or black Spots occur elsewhere the OPC drum surface is damaged 3 If a black image is partially broken the transfer voltage
24. CTOR L 1 4 CAP CONNECTOR U 1 4 MEC ROLLER TRANSFER 1 45 GEAR IDLE 727 2 46 RING CS 2 2 1 1 1 1 1 1 Samsung Electronics 5 5 Exploded Views and Parts List 5 2 3 Exit Exploded View NO Description Q ty MEA RACK HOU EXIT 1 PMO FRAME REAR 1 GEAR EXIT U ID 1 RING CS 2 GEAR IDLE 25 1 SPRING F DOWN 4 PMO HOLDER EXIT FIDOWN 4 PMO ROLLER EXIT MAIN 4 PMO ROLLER EXIT FR 4 MEC BEARING EXITRING C 2 1 1 4 1 2 1 4 1 2 2 WMH e MEA UNIT ROLL EXIT GEAR EXIT RMP RUBBER EXIT F UP ACTUATOR OUT FULL MEC BEARING EXIT RING C GUIDE EXIT SCREW TAPTITE PHOTO SENSOR OUT BIN PMO HOLDER LEVER PMO LEVER STACKING 5 6 Samsung Electronics 5 2 4 Rack MPF Exploded View Exploded Views and Parts List NO Description Qty 0 ELA HOU MPF 1 1 PHOTO INTERRUPTER 1 2 SCREW TAPTITE 2 3 WASHER PLAIN 1 4 SOLENOID HAWK 1 5 CBF HARNESS MP_EMPTY 1 6 SPRING KNOCK UP 1 7 SPRING PICK UP MP 1 8 _ 1 9 PMO PLT UP 1 10 ICT SHAFT_P U MP 1 1 PMO GEAR P U MP 1 12 PICK UP MP 1 13 PMO FRAME_MP 1 14 PMO HOLDER_P U MP 1 15 PMO HOUSING_P U MP 1 16 PMO BEARING PICK UP 2 17 RPR RUBBER P UP MP 1 18 PMO IDLE PICK UP MP 2 19 RPR PAD KNOCKUP MP 1 20 RCR FRICTION PAD 1 MP 1 21 RCR FRICTION PAD 2 MP 1 22 PMO RING KNOCK UP MP 1 23 SCREW TAPTITE 2 24 PMO AD
25. EN 14 PMO LENS LED 15 PMO KEY BUTTON 16 PBAPANEL 17 PMO COVER REAR 18 PMO STACKER REAR 1 9 IPR SPRING LOCKER REAR 140 REAR 1 11 PMO SUPPORT MP TRAY 1 12 PMO LEVER_EMPTY MP 143 PMO STOPPER_EXITP 2 PMO COVER CONTROLLER 3 MEA UNIT MP TRAY 81 PMO COVER MP 32 MPR NAME PLATE XRX 33 PMO CHUTE 33 1 PMO DUMMY CHUTE 3 4 PMO TRAY HOLDER MP 35 IPR GUIDE LATCH 36 PMO SIDE GUIDE MP 37 PMO TRAY LINK MP 4 MEA UNIT BRKT BOTTOM L XRX 41 FOOT RUBBER 42 PMO BRKT BASE L 43 PAPER SIZE SENSOR ASS Y 5 MEA UNIT BRKT BOTTOM R XRX 51 FOOT RUBBER 52 IPR PLATE CST GUIDE 53 PMO BRKT BASE R 54 SCREW TAPTITE 55 IPR GROUND SCF BASE 6 IPR BAR CLOSS BOTTOM 51 SCREW TAPTITE 5 4 Samsung Electronics Exploded Views and Parts List 5 2 2 Frame Exploded View 4 WASHER PLAIN 48 IPR WASHER SPRING SU PRING HINGE FEED EAR EXIT M ID 51 IPR GUIDE DUST 52 PMO BASE FRAME 53 PMO GUIDE SKEW 12 amp a a e NO Description Qty 1 ELA UNIT FRAME BASE 1 2 PMO GUIDE RIB 1 3 CBF HARNESS INLETASSY 1 4 PMO HOLDER WIRE 1 5 KEY DEVE 1 6 CBF HARNESS ENGINE_CONTROL 1 7 CBF HARNESS_FUSER 1 8 PBA EXIT SENSOR 1 9 CBF HARNESS THERMISTOR JOINT 1 10 CBF HARNESS MP CLUTCH ENG 1 11 PBA SUB FUSER SW 1 12 PBA SUB TONER SENSOR 1 13 PM
26. ICHT UNSICHTBARE LASERSTRAHLUNG not sure of the type of power source available consult WENN ABDECKUNG GEOFFNET your dealer or local power company NOHT DEM STRAHLAUSSETZEN 9 If you need to use an extension power cord with this ATTENTION LASER INVISIBLE EN CAS printer make sure that it uses a three wire grounded ECL d cord and that the total ampere ratings for all of the METERGIONE HIGH ZION products using the extension do not exceed the APERTURA EVITARE L ESPOSIZONE LA FASCIO extension cord ampere rating Also make sure that PRECAUCION REDIACION LASER INVISIBLE CUANDO SE doo _ into the wall outlet ABRE EVITAR EXPONERSE AL RAYO 10 Do not allow anything to rest on the power cord or data communications cable 11 Unplug this printer from the wall outlet before clean ing Do not use liquid cleaners or aerosol sprays Use a damp cloth for cleaning 12 Do not touch the surface of the photo sensitive drum as marks or scratches may impair print quality 13 Do not expose the drum unit to direct light for pro longed periods 14 Use only standard papers OHP films and approved envelopes Feed OHP films though the manual feed slot only See specifications for approved papers and envelopes 15 Other than replacing consumables such as paper and toner refer all questions to qualified service per sonnel CAUTION Avoid exposure to invisible laser radiation when the development unit is no
27. If the regular fonts are not printed this time again the cable must be defective so replace the cable with new one Samsung Electronics 4 27 Troubleshooting 4 6 3 Abnormal Printing The printing is not working properly even when the cable has no problem even after the cable is replaced If the printer won t work at all or the strange fonts are repeated the printer driver may be defec tive or wrong setup in the CMOS Setup Description Check and Cause Solution 1 Set up the parallel port in the CMOS SETUP 1 Select SPP Normal or ECP LPT Port the among ECP EPP or SPP in the CMOS Setup 2 Printer Driver Error 2 Check the printer in My Computer to see if the printer driver is compatible to the present driver or delete the old driver if defective and reinstall the new driver 3 Error message from insufficient memory 3 Delete the unnecessary files to secure enough The printing job sometimes stops or due to insufficient space of the hard disk and start printing job again virtual memory but it actually comes from the insuffi cient space of the hard disk 4 28 Samsung Electronics 4 6 4 SPOOL Error Troubleshooting To spool which stands for simultaneous peripheral operations online a computer document or Description task list or job is to read it in and store it usually a hard disk or larger storage medium so that it can be printed or otherwise processed at a more c
28. If the scanner needs to be connected to the printer first the remove the scanner from the PC to see if the printer is properly working alone 4 26 Samsung Electronics Troubleshooting 4 6 2 The printer is not working 2 After receiving the printing order no response all or the low speed of printing Description dace occurs due to wrong setup of the environment rather than malfunction of the printer itself Check and Cause Solution 1 Secure more space of the hard disk 1 Not working with the message insufficient printer memory means hard disk space problem rather than the RAM problem In this case provide more space for the hard disk Secure more space using the disk utilities program 2 Printing error occurs even if there is enough space in 2 The connection of the cable and printer port is not the hard disk proper Check if the connection is properly done and if the parallel port in CMOS is rightly set up 3 Check the parallel port related items in the CMOS 3 As a printer port Select ECP or SPP among Setup SPP Normal ECP and EPP modes increase print ing speed SPP normal mode support 8 bit data transfer while ECP Mode transfer the 12 bit data 4 Reboot the system to print 4 If the regular font is not printing the cable or the printer driver may be defective Turn the PC and printer off and reboot the system to print again If not solved double click the printer in my computer
29. JUST END MP 1 25 RING E 1 26 RING CS 1 Samsung Electronics Exploded Views and Parts List 5 2 5 Fuser Exploded View NO Description 0 ELAUNIT FUSER 110 1 ELA UNIT FUSER 220V 1 1 SCREWTAPTITE 8 1 2 SCREW TAPTITE M3 x 10 FH 1 SCREWMACHINEM3x6 2 4 THERMISTOR NTC 1 5 ELECTRODE FU R 1 6 ELECTRODE FUM 1 7 ELECTRODE FUL 1 8 THERMOSTAT 1 9 BRKT GEAR FUSER 1 10 GEAR IDLE 25 1 11 GEAR IDLE 15 1 12 RING CS 2 13 COVER FUSER 1 14 ROLLER EXIT FUP 3 15 SPRING 3 16 SPRING CLAW 4 17 GUIDE CLAW 4 18 LAMP HALOGEN 110V 1 LAMP HALOGEN 220V 1 19 ROLLER HEAT 1 20 ROLLER PRESSURE 1 21 FRAME FUSER 1 22 GUIDE INPUT 1 23 GEAR FUSER 32 1 24 BUSHING HR L 1 25 BUSHING HR R 1 26 SPRING BEARING PR 2 27 BUSHING PR 2 28 PMO GUIDE REAR 1 29 SHAFT EXIT_F UP 1 30 BUSHING_TX 3 91 GEAR EXIT 1 32 RUBBER EXIT 3 33 RUBBER EXIT FUP 1 34 ACTUATOR EXIT 1 35 SPRING ACTUATOR 1 36 HOLDER BRUSH 1 37 BRUSH ANTISTATIC 1 d 38 HOLDER SHAFT 1 5 8 Samsung Electronics Exploded Views and Parts List 5 2 6 Drive Exploded View NO Description Q ty ELA UNIT MOTOR MOTOR STEP 7 5_DEG MOTOR STEP 7 5_DEG IPR BRKT GEAR IPR BRKT MOTOR GEAR FUSER DRV GEAR RDCN 123 87 GEAR OPC DRV 135 GEAR OPC DRIVE2 9 WASHER PLAIN 10 DRV 1 SCREW MACHINE 12 MPR POLYWASHER8 13 WASER PLAIN
30. O FRAME COVER 1 14 PR TERMINAL FU 2 15 ELA UNIT HOLDER TR L 1 15 1 PMO BUSHING TR 1 15 2 SPRING TRL 1 15 3 PMO TRANSFER HOLDER 1 16 ELA UNIT HOLDER TR R 1 16 1 PMO BUSHING TR 1 162 SPRING TR R 1 16 3 PMO TRANSFER HOLDER 1 16 4 IPR PLATE TR 1 17 GEAR TR29 1 18 ELA UNIT GUIDE DEVE L 1 18 1 DEVE L 1 18 2 SPRING GUIDE DEVE 1 19 ELA UNIT GUIDE DEVE R 1 19 1 PMO GUIDE DEVE R 1 19 2 SPRING GUIDE DEVE 1 20 ELA HOU VARISTOR 1 21 PR TERMINAL TR HAWK 1 22 ELA UNIT SENSOR DEVE 1 224 PBA MICROSWITCH 1 22 2 PMO HOLDER ACTUATOR 1 22 3 DEVE 1 23 GROUND FU 1 24 ELA UNIT TERMINAL TR L 1 244 ICT SHAFT HV LARGE 1 242 SPRING HV LARGE 1 25 ELA UNIT TERMINAL TR S 3 25 1 ICT SHAFT HV LARGE 3 252 SPRING HV SMALL 3 26 GROUND HVPS 1 27 PR REMOVE KEY 1 28 ELA UNIT ACTUATOR FEED 1 28 1 PMO ACTUATOR FEED 1 28 2 PMO HOLDER ACTUATOR 1 28 3 SPRING FEED HAWK 14 1 29 ELA UNIT GUIDE TRANSFER 1 294 SAW PLATE 1 292 IPR PLATE SAW 1 293 IPR GI RANSFER 1 294 PMO RIBTR 1 30 ELA UNIT GUIDE FEED 1 30 1 PMO GUIDE OPTIC 1 302 GUIDE FEE 1 303 PMO HOLDER G PAPER 1 31 ELA UNIT PTL 1 2 1 GUIDI E FEED 1 31 2 PMO R PTL 1 31 3 PBASUB PTL 1 32 ELA UNIT EMPTY ACT 1 32 1 PMO ACTUATOR EMPTY HAWK 1 32 2 SPRING EMPTY 1 33 HINGE GUIDE FEED 1 34 GND ICU 1 35 PMO CAP SENSOR 1 36 GND MP 1 37 GEAR P UP DRIVE 2 38 GROUND MOTOR 1 39 IPR GUIDE DUST 1 40 PBA MAIN CON JOINT 1 4 IPR OPC HAWK 1 42 CAP CONNE
31. PRINT THV TRIGGER amp THV ON MP PICKUP ON FAN TEST PAPER SIZE SENSOR TEST SMD TEST 0 1 2 3 14 5 6 7 GREEN STATUS CODE 88 99 DCU MODE UP Ga BIAS 1 LSU MT amp LD BIAS 0 LSU MOTOR 00 READY REGAL READY LETTER 02 READY A4 03 READY EXECUTIVE 04 READY 5 05 READY FOLIO 06 READY A5 A6 20 PRINT START 1 st CASSETTE PRINT START MP 22 PRINT START 2 nd CASSETTE 40 FEED SENSOR 2 st ON 50 PAPER OUT 60 OPEN FUSER ERROR 62 LOW HEAT ERROR 68 OVERHEAT ERROR 64 COVER OPEN ERROR 65 CRU ERROR 69 SLEEP MODE 70 NO PAPERR or CASSETTE 72 PAPER JAM 1 73 PAPER JAM 2 76 OUTBIN FULL ERROR 90 MANUAL PRINT MODE LSU NOT READY STOP ENTER O O ENTER DIAGNOSTIC MODE PUSH THREE BUTTONS SIMUL ANEOUSL THE PRINTER POWER ON Samsung Electronics Troubleshooting 4 2 The cause and solution of Bad image 4 2 1 Vertical Black Line and Band Description 1 Straight thin black vertical line occurs in the printing 2 Dark black vertical band occur in the printing Digital Pginter Digital Pginter Digital Pginter Digital Pinter Digital Pginter Check and Cause Solution 1 Damaged develop roller in the Developer Deformed Doctor blade or cleaning blade 2 Scratched surface of the discharge roller in the developer 3 Partly depression or deformation on the surface of
32. Sensor 1 ON OFF 1st LED ON OFF Cassette Sensor 2 ON OFF 2nd LED ON OFF Cassette Sensor 3 ON OFF 3rd LED ON OFF Increment DCU Code No 00 MAIN MOTOR TEST Decrement DCU Code No 15 FAN TEST 17 SMD Test This function is for a manufacturing process You can test all diagnostic Codes 0 06 When you push the Enter button the main motor runs Diagnostic Code 00 If you push the up botton the current diagnostic Code stops and the next diagnostic Code starts 4 1 4 Self Test Button If the Self Test button pressed vertical lines are printed Turn the power on while pressing this button 89 shows in the DCU and the printer is warming up After warming up the printer is in READY Mode and 88 shows in the DCU In this mode without any detection the printer begins printing trial printing and data from the PC It is convenient to use this mode when the engine malfunction is detected in the control board 4 1 5 Paper Path Layout CASSETTE 4 4 Samsung Electronics 4 1 6 DCU Panel Troubleshooting ML 1650 DIAGNOSTIC CONTROL UNIT QUICK REFERANCE BIAS 3 LSU READY O STATUS O DIAGNOSTIC MAIN MOTOR OPERATION MAIN HIGH VOLTAGE ON TRNSFER HIGH VOLTAGE ON THV REFERANCE VOLTAGE DEV SUPPLY VOLTAGE ON LSU OPERATING TEST PICKUP CLUTC ON PAPER EMPTY SENSOR TEST FEED amp EXIT SENSOR TEST COVER OPEN SENSOR TEST FUSER TEST HOT BURN TEST CLEAN MESSAGE
33. e operator panel do not come on Check and Cause Solution 1 Check if the power input and SMPS output are normal 2 Check the inferiority of LED Panel on the front cover if the LED of Panel does not appear after normal warming up 1 Replace the power supply cord or SMPS 2 Replace the control board 3 Replace the LED panel 4 20 Samsung Electronics Troubleshooting 4 4 10 Vertical Line Getting Curved e Description When printing vertical line gets curved Check and Cause Solution 1 If the supply of 24v is unstable in the Main Control board 1 Replace LSU linking with LSU check drive by DCU Mode LSU Check 05 LSU Motor on 2 Replace the Main Control board Samsung Electronics 4 21 Troubleshooting 4 5 Toner Cartridge Service It is not guaranteed for the default caused by using other toner cartridge other than the cartridge supplied by the Samsung Electronic or caused by non licensed refill production 4 5 1 Precautions on Safe keeping of Toner Cartridge Excessive exposure to direct light more than a few minutes may cause damage to the cartridge 4 5 2 Service for the Life of Toner Cartridge If the printed image is light due to the life of the toner you can temporarily improve the print quality by redistributing the toner Shake the toner cartridge however you should replace the toner cartridge to solve the problem thoroughly 4 5 3 Judgment of a genuine Toner
34. eat the routine as in the above or finish the spool manager Samsung Electronics 4 29 Exploded Views and Parts List 5 Exploded Views and Parts List Deal drawings and service parts are declared for the items with higher rate of inferiority and replaceable in the level of service description only If inferiority occurs you can replace the parts by the unit declared in deal drawings and service items Way to observe Part Code amp Description Part code and Description is quoted and controlled by determined standard Refer to this determined standard it will help with ordering Part There ar woo kinds of Part code inscription type 0000 000000 ex 2007 007961 R CHIP 000008 JB96 01268A ELA UNIT COVER TOP It shows part specific figure character alphabet Type 1 Controlled by Company It can be commonly used for all kinds of product SEC produce Mostly electronics Parts 2 Controlled by Division It is used or one produce Mostly Mostly mechanical Parts A S privately used part It is only used for A S Ass y part Assembled by more than 2 Parts If necessary part is not A S Part Ass y part including necessary par can be used It is shown in the diagram and drawing of SVC manual Ass y part and A S privately used Part is distinguished by part Code and Description The are inscription type 2 It is recognized by Part character and front
35. ed area by the toner 5 Replace the HVPS if the problems are not solved by the above four directions Description printed image is dark Check and Cause Solution 1 No charge voltage in the engine board Perform DCU diagnostic code 01 2 Charge voltage is not turned on due to the bad contacts between power supply in the side of the Developer and charge terminal of HVPS 1 Clean the high voltage charge terminal 2 Check the state of the connector which connects the engine board and HVPS 3 Replace the HVPS if not solved by the above direction 1 and 2 4 8 Samsung Electronics 4 2 7 Uneven Density Troubleshoo ting Description Print density is uneven between left and right Digita Digita Digita Digita Digita 4 2 8 Background Check and Cause Solution The pressure force on the left and right springs of the transfer roller is not even the springs are damaged the transfer roller is improperly installed or the trans fer roller bushing or holder is damaged 2 The life of the Developer has expired 3 The toner level is not even on the devel oper roller due to the bad blade 1 Replace both the left and right Spring Holder 2 Occur in the developer cartridge replace the developer and try to print out e Description Light dark background appears in whole area of the printing Digital Print
36. er Digital Printer Digital Printer Digital Printer Digital Printer Check and Cause Solution 1 Recycled recording paper has been used 2 The life of the Developer has expired 3 The up to down movement of the trans fer roller is swift 4 The HVPS is normal Perform DCU diagnostic code 01 04 1 B S is not guaranteed when using recycled paper 2 Replace the Developer that has expired 3 Clean the busing part of the transfer roller 4 Replace the Developer if not solved by the above direction 1 3 Samsung Electronics 4 9 Troubleshooting 4 2 9 Ghost 1 Description Ghost occurs at 96 mm intervals of the OPC drum in the whole printing J Digital Printer Digital Printer Digital Printer 96 4 2 10 Ghost 2 Check Cause Solution 1 Bad contacts caused by contamination from toner particles between high voltage terminal in the main body and the elec trode of the Developer 2 Bad contacts caused by contamination from toner particles between high voltage terminal in the main body and the one in the HVPS board 3 The life of developer is expired 4 Transfer roller lifetime 125 000 sheets has expired 5 Abnormal low temperature below 10 C 6 Damaged cleaning blade in the developer 1 Clean the terminals when contaminated by toner particles 2 Occur in the developer cartridge replace the developer and t
37. essary C Description Ghost occurs at 70 mm intervals Check and Cause Solution Digital Printer The temperature of the fuser is maintained high Digital Printer 96 Digital Printer 4 2 13 Satins on the Face of Page 1 Disassemble the fuser and remove the contaminated toner particles on the roller and clean the foreign matter between Thermistor and Heat roller A Caution can be deformed Description background on the face of the printed page is stained Check and Cause Solution DigitakPrinter DigitalPrinter 1 Toner leakage due to improperly sealed 1 Replace the developer cartridge NEC developer Digital Printer Li Li H Digital Printer 2 If the transfer roller is contaminated satins 2 If the transfer roller is contaminated run PC Digital Printer on the face of page will occur Cleaning Mode Print 2 or 3 times And perform Self Test 2 or 3 times to remove contamination Samsung Electronics 4 11 Troubleshooting 4 2 14 Satins on Back of Page Description back of the page is stained at 56 1 mm intervals J Check and Cause Solution Digital Printer 1 Transfer roller is contaminated 1 Perform the OPC Cleaning Mode Print 2 or 3 times Run Self Test to remove the conta mination of the transfer roller 96 Digital Printer Digital Pri
38. he button within 2 or 3 seconds if 78 shows in the DCU If 00 shows in the DCU press the button or Shift to select the self test and press the button of Enter to operate To stop press the button of shift and Enter together 00 Main Motor Operating System Only the main motor is in operation 01 Main High Voltage On THV 1400 voltage output by MHV terminal A Caution High voltage probe should be used 02 Transfer High Voltage On THV 1000 voltage output by MHV terminal Caution High voltage probe should be used 03 Transfer High Voltage Reference on THV 800 voltage output by MHV terminal Caution High voltage probe should be used 04 DEV supply High Voltage DEV Supply High Voltage Test The left one of the three LEDs in the self test panel is on when DEV high voltage Supply high voltage output by each HV terminal 500V Press the Up button to switch the voltage The middle and right one of the three LEDs are on and 650 voltage output DEV HV terminal 4 Caution High voltage probe should be used 05 LSU Operating System The scanning motor of LSU is in operation the right LED of the three buttons on Press the Up button to Check LD LD is functioning and the middle button is on If the LD is normal all LEDs are on 06 Pickup clutch on The Solenoid in the printer is in operation To stop the operation Press the button shift and Enter together 07 Paper Empt
39. he main board Samsung Electronics 4 17 Troubleshooting 4 4 3 Not function of the gear of the fuser due to melting away Description The motor breaks away from its place due to gear melting away Check and Cause Solution DCU Mode Check if the Error States 60 62 68 occur Check the operation of Fuser Erasing Lamp On Off with the Error Code Check 10 4 4 4 Paper Empty 1 Replace the Fuser 2 Replace the Main Control board Description The paper lamp on the operator panel is on even when paper is loaded in the cassette Check and Cause Solution 1 Bending or deformation of the actuator of the paper sen SOr 2 The function of the engine board is defective Perform DCU mode Perform DCU diagnostic code 8 4 4 5 Paper Empty without indication 1 Replace the defective actuator 2 Replace the engine board Description The paper lamp on the operator panel does not come on when the paper cassette is empty Check and Cause Solution 1 Bending or deformation of the actuator of the paper sen SOr 2 The function of the engine board is defective Perform DCU mode Perform DCU diagnostic code 8 1 Replace the defective actuator 2 Replace the engine board 4 18 Samsung Electronics 4 4 6 Cover Open Troubleshooting Description The ERROR lamp is on even when the print cover is closed Check and Cause S
40. holder and the Adjust End NP 1 Release the wire from the two holders 1 Remove two screws and remove the MPT bracket 2 Raise the pickup holder in the direction of 2 Unlatch the PE sensor then take it out Adjust End MP Samsung Electronics 3 13 Disassembly and Reassembly 3 16 Engine Board and Miscellaneous 1 Before you remove the engine board you should 4 While you push the latch to release the PCU shield remove take the PCU shield out of the printer Main Cover see page 3 5 2 Remove six screws from the left and the right base bracket and take them out 3 Remove eight screws securing the PCU shield and 5 Unplug all connectors from the PCU shield and remove two screws securing the SCF connector and remove the shield then take the PCU shield out of the printer 3 14 Samsung Electronics Disassembly and Reassembly To replace the exit board To replace the Cap sensor Unplug one connector from the controller board Remove two screws and take it out and remove one screw securing the board Then release the wire from two holders and take the board out To replace the fuser sensor To replace the actuator empty Remove two screws and take it out Take the sensor out while you squeeze the both ends of the sensor Actuator empty
41. int Position Page 4 13 4 6 3 Abnormal Printing Page 4 28 4 32 JAM OQ Page 4 13 4 6 4 SPOOL Page 4 29 4 3 3 JAM1 Page 4 14 4 3 4 JAM2 Page 4 14 4 3 5 Multi Feeding Page 4 15 4 3 6 Paper rolled in the fuser Page 4 15 4 327 Linee Page 4 16 Samsung Electronics 4 1 Troubleshooting 4 1 How to use DCU 4 1 1 DCU Setup You can examine the malfunction of the printer To perform DCU open the front discharge cover and leave the connect the harness wire 10 pin 4 pin to the CN10 4 pin of the Main control board Connect DCU to the printer and turn the power on It show 7 LED on the panel and each code tells the function of the 4 1 2 Code printer Normal Code While printing or warming up it indicate the position of the paper 61 Warm up The printer is on the cover is open or close 00 05 Ready kind of paper The printer is ready the paper is detected when the first paper is printed 00 Legal 01 Letter 02 4 03 EXEC 04 B5 05 Folio 06 A5 A6 20 21 22 Print Start The engine controller received the print order from the video controller 20 1st 21 MP 22 SCF 30 Feed Sensor On The paper is passing out of the Feed Sensor 40 Feed Sensor
42. is abnormal or the trans fer roller s life has expired If dark or blurry black spots occur periodi 1 Run OPC cleaning Mode Print and run the Self test 2 or 3 times 2 In case of 96 mm interval unremovable in 1 cleanly remove foreign substances stuck on the OPC location equivalent to black spots and white spots with a dry duster 3 The transfer roller guarantees 125 000 sheets printing If the roller s life is expired replace it 4 In case of 38 5 mm interval unremovable in 1 take measures as to replace the develop er cartridge and try to print out 5 Clean the inside of the set against the paper particles and foreign matter in order not to cause the trouble Samsung Electronics 4 7 Troubleshooting 4 2 5 Light Image Description printed image is light with ghost Check and Cause Solution 1 Develop roller is stained when the toner of developer cartridge is almost con sumed 3 Bad contact caused by the toner stains between the high voltage terminal in the HVPS and the one in the set 4 Abnormal output from the HVPS Run self test and check 1 4 4 2 6 Dark Image or a Black 2 Ambient temperature is below than 10 1 Check if the Toner Save mode is off 2 No 1 Replace the developer cartridge and try to print out 3 No 2 Wait 30 minutes after printer is pow ered on before you start printing 4 No3 Clean up the contaminat
43. may fall causing serious damage current can be flown Otherwise any hazard to the product such as an electric shock or a fire could occur 3 Slots and openings in the cabinet are provided for ventilation To ensure reliable operation and to protect the printer from ever heating do not block or cover LASER STATEMENT LASERTURVALLISUUS WARNING NEVER OPERATE AND SERVICE THE PRINTER any of these openings Do not place the printer in an WITH THE PROTECTIVE COVER REMOVED enclosure unless the enclosure provides adequate FROM LASER SCANNER ASSEMBLY THE ventilation REFLECTIVE BEAM ALTHOUGH INVISIBLE CAN 4 Never push objects of any kind into the printer through DAMAGE YOUR EYES the cabinet ventilation slots as they may touch dan gerous high voltage points create short circuits cause a fire or produce an electrical shock Never spill liquid of any kind on the printer 5 Do not place the printer in a location where someone Class 1 laser product Luokan 1 laserlaite Klass 1 laser apparat may trip on the cords Allonpituus 770 795nm 6 Select a work surface that is large enough to hold the Teho 0 3mW 0 03mW printer 7 Position the printer within six feet of the computer and within five feet of an electrical outlet CAUTION INVISIBLE LASER RADIATION WHEN id THIS COVER DO 8 this printer using the power source 110 THIS COVER 220V etc indicated on the marking label If you are VORS
44. nce of the devel oper 1 Check the damage to label and whether different materi als are used 2 Check the appearance of parts of the developer such as frame hopper 2 Unclean and rough printouts 1 Check whether foreign sub stance or toner are stuck to the terminal contact point of the developer 2 Check whether the state of the terminal assembly is nor mal 1 2 In case of 1 1 lf there is an evidence of disas sembling the developer 2 materials other than normal parts of the developer are added or substituted In case of 2 If there are any abnormals in connection with the situation of 1 1 occurs when the developer is recycled over 2 times 2 toner nearly being expired are collected to use it is judged as the recycled devel oper 4 24 Samsung Electronics Fault Signs Cause amp Check Troubleshooting Solution Ghost amp Image Contamination printed image is too light or dark or partially contami nated black Totally contaminat edblack Black image print ed out density of print outs is too dark and ghost occurs 1 The printed image is too light or dark or partially contami nated black 1 Check whether foreign sub stance or toner are stuck to the terminal point of contact of the developer 2 Check whether the terminal assembly is normal 2 Totally contaminated black Black image printed
45. nter 2 Pressure roller is contaminated 2 Replace the transfer roller if contaminated severely 3 Disassemble the fuser and clean the H R Heat Roller and P R Pressure roller And check the area between H R and Thermistor If contaminated clean the area not to be deformed 4 2 15 Blank Page Print out 1 Description Blank page is printed Check Cause Solution Bad ground contacts in OPC and or devel Remove contamination of the terminals of the oper developer and the unit 4 2 16 Blank Page Print out 2 1 Blank page is printed e Description 2 or several blank pages are printed 3 When the printer turns on several blank pages print Check and Cause Solution 1 Bad ground contacts in OPC and or 1 Remove contamination of the terminals of developer the developer 2 Abnormal solenoid 2 Perform the engine self test using DCU to check if the Solenoid is normal refer to code 06 3 If not solved by the above directions 1 2 Replace the engine board 4 Turn the power off delete the data of PC and try printing again 4 12 Samsung Electronics Troubleshooting 4 3 The cause and solution of the bad discharge 4 3 1 Wrong Print Position e Description Printing begins at wrong position on the paper Solution Check and Cause Wrong sense time caused by defective feed sensor act
46. olution 1 The hook lever in the top cover may be defective 2 Check the connector CN1 Engine B dGHVPS and circuit of the cover switch department in the Main Control board Perform DCU mode If Error state 64 occurs Check the related codes of the Cover Open Error 4 4 7 No lamp on when the cover is open 1 Replace the hook lever if defective 2 Check the insertion of the Cover Open S W Connect 3 Replace the Main Control board or Cover Open S W Description The ERROR lamp does not come on even when the printer cover is open Check and Cause Solution Check the connector CN8 and circuit of the cover switch department in the Main Control board Perform DCU mode If Error state 64 occurs Check the related codes of the Cover Open Error 1 Check the insertion of the Cover Open S W Connect 2 Replace the Main Control board or Cover Open S W Samsung Electronics Troubleshooting 4 4 8 Defective motor operation Description Main motor is not driving when printing and paper does not feed into the printer resulting 0 Check and Cause Solution 1 Motor harness or sub PCB may be defective 2 Perform DCU diagnostic code 00 and Check the motor operation 4 4 9 No Power 1 Check the motor harness replace it if defective 2 Replace the SMPS if necessary Description When system power is turned on all lamps on th
47. onvenient time for example when a printer is finished printing its current document Check and Cause Solution 1 Insufficient space of the hard disk in the directory assigned for the basic spool 2 If the previous printing error not solved 3 When expected to collide with other program 4 When an application program or the printer driver is damaged 5 When some files related to OS are damaged or virus infected 6 Memory is less than suggested one How to delete the data in the spool manager 1 Delete the unnecessary files to provide more space to start printing job 2 If there are some files with the extension name of jnl Delete them and Reboot the Windows to restart printing job 3 Shut down all other programs except the current one if possible 4 Delete the printer driver completely and reinstall it 5 After rebooting the computer check for viruses restore the damaged files and reinstall the program to do the printing job 6 Add up enough memory to the PC In the spool manager the installed drivers and the list of the documents waiting to be printed are shown Select the document to be deleted and check the delete menu If you intend to delete the current document being printed the data being transferred to the printer will be put out and then the document is removed Before choosing the document the menu is still inactive Or put the document out of the list and rep
48. ools for Troubleshooting Precautions The following tools are recommended for safe and smooth troubleshooting described in this service manual DCU Diagnostic Control Unit Standard Test equipment to diagnose the Laser printer supplied by Samsung Electronics DVM Digital Volt Meter Standard Indicates more than 3 digits Electronic Scale Standard Equipment to check the weight of con sumables toner cartridge supplied by Samsung Electronics The gram unit can be measured Driver Standard type type M3 long M3 short M2 long M2 short Pinset Standard For general home use small type gt Cotton Swab Standard For general home use for medical ser vice Cleaning Equipments a IPA Isopropyl Alcohol dry cloth or a soft stuff neutral detergent Software Driver installation CD ROM Mind your hands not to be touched when you disassemble and reassemble PBA ASS Y Note such as the main board SMPS HVPS Samsung Electronics 2 Specifications Specifications ML 1650 ML 1651N Speed 17 PPM Letter 16PPM A4 Resolution 1200 1200 First Print Time Tray 1 Less than 14 seconds Tray 2 Less than 17 seconds Warm Up Time Less than 40 seconds Power Consump Print 300 W Sleep mode Less than 20 W Dimension W D H
49. out 1 Check whether foreign sub stances are stuck to the ter minal point of contact of the developer and the state of assembly Especially check the charged roller terminal 3 The printed image is dark and ghost occurs 1 Check foreign substance attached to the terminal point of contact of the developer and the state of assembly Especially check the devel oping roller terminal 1 All of 1 2 3 above 1 Remove toner and foreign sub stances adhered to the contact point of the developer 2 The contact point of the unit facing that of the developer also must be cleaned the terminal assembly is unsafe e Fully stick the terminal to or reassemble it after disassem bling Disassemble the side plate and push the terminal to be stuck then reassemble it 2 In case of 2 It is a phenomenon when the OPC drum of the developer is not electrically charged Clean the terminals of the charged roller then recheck it 3 In case of 3 It is a phenomenon as the devel oping bias voltage of the devel oper Clean the terminals of the developing roller then recheck it Samsung Electronics 4 25 Troubleshooting 4 6 The cause and solutions of bad environment of the software 4 6 1 The printer is not working 1 Description While Power turned on the printer is not working in the printing mode Check and Cause Solution 1 Run Self Test Mode Turn the power on
50. ow the image has not been printed partly In case of 3 If the cycle of noise is about 2 seconds the toner inside the developer has been nearly exhausted Purchase and replace with a new developer after using about 200 sheets at the point of occurrence In case of 3 This is a phenomenon caused by lack of toner so replace with a new developer Toner Contamination Toner is fallen on the papers periodi cally Contaminated with toner on prints part ly or over the whole surface 1 Toner is fallen on the paper periodically 1 Check the cycle of the falling of the toner 2 Check the appearance of both ends of the developer OPC drum 2 The center of the printed mat ter is contaminated with toner 1 Check whether foreign sub stances or toner are stuck to the terminal contact point of the developer 2 Check whether the state of the terminal assembly is normal 3 If both ends of the OPC drum are contaminated with toner Check the life of the developer Check whether it could be recy cled If it cannot be recycled Replace the developer Samsung Electronics 4 23 Troubleshooting Cause amp Check Fault Signs Solution White Black spot Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Light or dark black dots on the image occur periodically White spots occur in
51. rews and take the halogen lamp out of the fuser assembly When you reassemble the halogen lamp make sure that it is inserted into the slot properly 3 10 Samsung Electronics Disassembly and Reassembly 3 14 Guide Feed amp Erase Lamp 1 Before you remove the guide feed amp PTL you 4 Remove the guide feed amp erase PTL should remove Main Cover see page 3 5 2 Release the latches on the erase lamp from the MPF ASS Y and unplug one connector then remove the PTL Erase Lamp 3 Remove three screws and raise the guide feed in the direction of arrow Samsung Electronics 3 11 Disassembly and Reassembly 3 15 MPF Assembly and Miscellaneous on MPF Assembly 1 Before you remove the MPF assembly you To replace the nockup plate should remove 1 Turn the gear shown in the square in the Main Cover see page 3 5 direction of arrow to release the nockup plate 2 Unplug two connectors and remove five screws and then take the MPF assembly out dg 2 Remove the spring then release the right end of the plate To replace the pickup roller 1 Remove the e ring 3 12 Samsung Electronics Disassembly and Reassembly To replace the Paper Empty PE sensor To replace the pickup
52. ry to print out 3 Replace the engine board if not solved by the above directions 1 2 4 If not solved by the direction 3 check the transfer roller lifetime and replace it 5 Wait about 1 hour after power on before using printer 6 Occur in the developer cartridge replace the developer and try to print out Description When printing on card stock or transparencies using manual feeder Ghost occurs at 96 mm intervals of the OPC drum in the whole printing J Digital Printer Digital Printer Digital Printer 96 Check and Cause Solution When printing on card stock thicker than nor mal paper or transparencies such as OHP higher transfer voltage is required Select Thick Mode on paper type menu from the software application and after using return ing to the original mode is recommended 4 10 Samsung Electronics 4 2 11 Ghost 3 Troubleshooting e Description White ghost occurs the black image printing at 51mm intervals 4 2 12 Ghost 4 Dioital Pr Check and Cause Solution igita rinter 1 The life of the developer may be expired 1 Occur in the developer cartridge replace i the developer and try to print out Digital Printer 2 The abnormal voltage and bad contact of 2 Check the approved voltage of the supply Digital Printer the terminal of the supply roller roller and contact of the terminal and adjust if nec
53. side of description DIVISION PART CODE DESCRIPTION A S Private ft Ag JB81 00039A AS USE ASSY Part M MEC JB75 00068A MEC CHUTE ASSN Part quem PBA tree JB92 01131A PBA MAIN CONTROLLER ASSY Part MEA JB97 01089A MEA UNIT PULLEY IDLE Samsung Electronics 5 1 Exploded Views and Parts List 5 1 Exploded Views and Parts List Service Parts List C O Service available X Service not available D DESCRIPTION SEC CODE REMARK SMPS HAWK16 SMPS JC44 00021A PWB SMPS V2 220V JC44 00022A FAN DC JC31 00012A PMO CAP WIRE JC72 00656A IPR CLAMP JC70 00009A ELA UNIT FRAME BASE HAWK16 JC96 01641J ELA UNIT FRAME BASE HAWK16 JC96 01641K ELA UNIT HOLDER TRL JC96 01730A MEC ROLLER TRANSFER JC75 00124A ELA UNIT HOLDER TRR JC96 01729A GEAR TR29 JC66 00039A ELA UNIT GUIDE DEVE L JC96 01643A ELAUNIT GUIDE DEVE JC96 01642A PBA SUB EXIT SENSOR JC92 01234B ELAHOU VARISTOR JC96 01772A PBA SUB FUSER SW JC92 01261A SUB SWITCH JC92 01235A ELAUNIT EMPTY ACTHAWK JC96 01720A ELAUNIT GUIDE FEED XRX 16 JC96 01653D ELA UNIT PTL XRX 16 JC96 02126A ELAUNIT GUIDE TRANSFER JC96 01645A PBA MAIN CONTROLLER JC92 01353A ELA UNIT FUSER JC81 00394A ELA UNIT FUSER JC81 00393A MEC ROLLER PRESSURE JC75 00114A LAMP HALOGEN 4713 001155 LAMP HALOGEN 4713 001156 4712 000001 CBF HARNESS LSU JC39 00135A SMPS HVPS JC44 00027A MEA RACK HOU EXIT JC9
54. t installed Samsung Electronics 1 1 Precautions 1 2 Precautions on Disassembly and Reassembly Very careful precautions should be taken when replacing parts Before replacing please check cables because you cannot put the cables that you removed for replacing parts into the proper place if you would not make sure of where they were connected and in which condition Please do the following before disassembling for a repair or replacement of parts 1 Pull out paper cassette printer cartridge installed Especially careful not to be scratched by the surface of developer or not to expose them to light 2 Turn the power switch off 3 Take out the power plug printer cable from the printer 4 Use only the same type of part as original when replac ing parts 5 Do not force to open or fasten plastic material compo nents 6 Be careful that small parts such as screws should not get in the printer 7 When disassembling assembling also observe small components are located in place 8 If you uncover and turn the machine over to replace some parts toner or paper particles may contaminate the LSU window Protect the LSU window with clean paper Releasing Plastic Latches Many of parts are held in place with plastic latches The latches break easily release them carefully To remove such press the hook end of the latch away from the part to which it is latched Samsung Electronics 1 3 T
55. the transfer roller 4 2 2 Vertical White Line If causes 1 and 2 occur in the developer cartridge replace the developer and try to print out Replace the transfer roller if occurred as No 3 C Description White vertical voids in the image Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Check and Cause Solution 1 Foreign matter stuck onto the window of internal lenses of LSU mirror 2 Foreign matter or toner particles between the developer roller and blade In case the life of the developer has been expired white lines or light image occur in front of the image Co It may occur when Burr and foreign sub stances are on the window of the devel oper frame 4 If the fuser is defective voids occur peri odically at the top of a black image Foreign matter stuck onto the window Clean the LSU window with recommend ed cleaner IPA Clean the window with a clean cotton swab Foreign matter in the LSU Open the cover of LSU and clean with a cotton swab on the surface of the reflex mirror No 3 Remove the foreign matter and burr of the exposure window Developer cartridge No 4 Open the front cover and check ribs that corresponds to the position of the voids Remove if found 5 If the problems are not solved replace the developer cartridge 4 6 Samsung Electronics 4 2 3 Horizontal
56. uator 4 3 2 JAM 0 Replace the defective actuator 1 Paper is not exited from the cassette 2 Jam 0 occurs if the paper feeds into the printer C Description Check and Cause Solution 1 Check the Solenoid by using DCU diagnostic mode 06 2 Check if the pad is loose due to bad sealing of the side pad Check the surface of the roller pick up for foreign matter 4 If continuous clusters occur check whether the assembly slot between shaft pickup and housing pickup become open or is broken away 5 If the paper feeds into the printer rand Jam 0 occurs perform DCU to check feed sensor of the engine board 1 Replace the solenoid 2 Replace the side pad Assembly L or R if necessary 3 Clean with soft cloth dampened with IPA Isopropyl Alcohol or water 4 Replace the Housing Pickup and or Shaft Pickup Samsung Electronics 4 13 Troubleshooting 4 3 3 JAM 1 Description 1 Recording paper is jammed in front of or inside the fuser 2 Recording paper is stuck in the discharge roller and in the fuser just after passing through the Actuator Feed Check and Cause Solution 4 3 4 JAM2 1 If the recording paper is jammed in front of or inside the fuser Perform DCU diagnostic code of 2 If the recording paper is stuck in the discharge roller and the fuser just after passing through the Actuator Feed Feed Actuator may be defec tive
57. with dry gauze 3 Remove the jammed paper after disas sembling the fuser Clean the surface of the pressure roller with dry gauze Remove the toner particles stained on the rib Check the assemblage and perfor mance of the exit Samsung Electronics Troubleshooting 4 3 5 Multi Feeding e Description Multiple sheets of paper are fed at once J Check and Cause Solution 1 Solenoid malfunction the solenoid does not work 1 Replace the solenoid if necessary properly Perform DCU mode solenoid check 06 2 Pad Friction is contaminated with foreign matter oil 2 Clean the pad friction with soft clothe dampened with IPA Isopropyl Alcohol 3 The face of paper is blended 3 Use the smooth paper 4 3 6 Paper rolled in the fuser e Description If contaminated at intervals of 57mm on the back of a paper J Check and Cause Solution 1 Contamination of the pressure roller 1 Disassemble the fuser clean the area between the Background Hot off set Heat roller and Thermistor and remove the foreign matter of the pressure roller 2 If background appears badly in the printing fix it by referring to the solutions for background See 4 2 8 Background Samsung Electronics 4 15 Troubleshooting 4 3 7 OPC e Description Paper is rolled up the Check Cause Solution 1 Paper is too much thin 2 The face of paper is curled 1
58. y 1st SCF MF Sensor Test If activate the Actuator of the PEMPTY PWIDTH Sensor the left and right of the three LEDs are on Paper Empty Sensor 1st ON OFF 1st LED ON OFF Paper Empty Sensor SCF ON OFF 2nd LED ON OFF Paper Empty Sensor MP ON OFF 3rd LED ON OFF Increment DCU Code No 08 Sensor TEST 08 Feed amp Exit Sensor Test Test the Feed sensor and Discharge sensor in the same way as 06 09 Cover Open Sensor Test The same way as code 06 10 Fuser Test If the Enter button pressed the right LED is on and temperature of the fuser is up to READY Mode If the Up button pressed the middle LED is on and temperature of the fuser is up to Printing Mode If you press the button once more the left LED is on and temperature of the fuser is up to overheat Mode 11 Hot Burn Test If the enter button pressed the printer is continuously printing without detection Turn the power off to stop operation 12 Cleaning Mode Print Mode Print the paper to clean the OPC Drum in the Cartridge Samsung Electronics 4 3 Troubleshooting 13 THV TRIGGER ALL HV All high voltage output by each HV terminal and LSU and the fan is in operation In this mode electronic resistance of transfer roller and high voltage is detected 14 7 Clutch Test Same method of the code 06 15 Fan Test Indicates the function of the fan same method of the code 06 16 Paper size Sensor Test Cassette
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