Samsung ML-4500/XAA Service Manual Download Page 15

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Disassembly and Reassembly

3-7

Samsung Electronics

3-10 Engine Board

1. Before you remove the engine board, you should

remove:

– All covers (see page 3-2, 3-4, 3-5)
– LSU (see page 3-6)

2. Unplug the four connectors and remove the two

screws from the engine board, then pull the
board in the direction of arrow.

3. Remove the Insulator which was under the

engine board.

Summary of Contents for ML-4500/XAA

Page 1: ... SAMSUNG Manual LASER PRINTER CONTENTS 1 Precautions 2 Specifications 3 Disassembly and Reassembly 4 Troubleshooting 5 Exploded Views and Parts List 6 Electrical Parts List 7 Block Diagrams 8 Connection Diagrams 9 PCB Diagrams 10 Schemaic Dagrams ...

Page 2: ...ELECTRONICS Samsung Electronics Co Ltd August 2000 Printed in Korea VERSION NO 1 00 P N JC 0011A ...

Page 3: ... original specifications Always determine the cause of damage or overheating and correct any potential hazards 6 Observe the original lead dress especially near sharp edges AC and high voltage power supplies Always inspect for pinched out of place or frayed wiring Do not change the spacing between components and the printed circuit board 7 Product Safety Notice Some electrical and mechanical parts...

Page 4: ...s anti static can generate electrical charges sufficient to damage ESDs 5 Do not use Freon propelled chemicals When sprayed these can generate electrical charges sufficient to damage ESDs 6 Do not remove a replacement ESD from its protective packaging until immediately before installing it Most replacement ESDs are packaged with all leads shorted together by conductive foam aluminum foil or a comp...

Page 5: ...49 365mm Width 100 216mm Weight For MPF 60 90g m 2 For Manual 60 163g m 2 Paper Capacity MPF 150 Sheets based on 75g m 2 Manual Slot 1 Sheet Paper Stacker Capacity Face up 100 Sheets 75g m 2 20 lb Warming up Time 30 Sec First Printing Time Stand By 20Sec Power Save Mode Less than 5min Power Rating AC 110V 120V 15 50 60Hz 3Hz AC 220V 240V 15 50 60Hz 3Hz Power Consumption Avg 180Wh Power Saving Cons...

Page 6: ...g with Accessory Gross Max 9kg External Dimension 329 W X 343 D x 224 H mm Developer Life Span 5 Pattern Min 2 500 1 000 Sheets Developing Non magnetic Contact Developing Charging Conductive Roller Charging Density Adjustment Normal Economic Mode selectable by the PC driver Only ML 4500 Toner Supply Method Exchanging Toner Cartridge New Developer Checkable Transfer System Conductive Roller Transfe...

Page 7: ... 10mm 10 Sheets 75g m2 Paper After Cooling Less than 10mm 10 Sheets 75g m2 Paper Reliability Insulation Resistance Less than 10 MΩ at DC 500V Dielectric Strength AC 1000V DC 1420V 10mA Ground Continuity Less than 0 1Ω Voltage DIP Rated Voltage 15 AC Impulse Noise AC 1000V 10 100 200 400 1000ns Rated Power Leakage Current Less than 3 5mA Surge 6 KV 500A 3 KV 500A OZONE Emission Less than 0 1 ppm 8 ...

Page 8: ...ypical 230V 120V Maximum 264V 135V Max AC Input Current 2 5Amps 3Amps Max Inrush Current Ap p at 20 C Output DC Line Regulation 24V 10 5V 5 Road Regulation 24V 10 5V 5 5V 5 Ripple Noise 24V Peak 300mV 5V Peak 500mV 5V Peak 500mV Over Current Protect 24V 2 7A 10 by Circuit 5V A 10 by Circuit Over Voltage Protect 24V 33VDC 5V 5 6VDC ...

Page 9: ...irect room light or sun light and be careful not to scratch the drum surface 2 Turn the power switch off 3 Unplug all the cables from the printer 4 Replace with only an authorized component 5 Do not force to open or fasten a plastic material component 6 Be careful no obstacles are included when you reassemble components 7 When you reassemble components be careful small size components are located ...

Page 10: ... and pull it towards you 3 Release the right bottom of the cover then pull it in the direction of arrow to release the other end 2 Remove the one screw to release the stopper securing the cover to the main body 4 Unplug the connector connecting the OPE cover to the main body and remove the cover ...

Page 11: ...n the direction of arrow Then Spread out the parts securing the guide stacker on both sides to release the cover 3 Remove the LED 4 Remove the PCB from the cover PCB 3 3 OPE Board 1 Before you remove the board you should remove the OPE cover see page 3 2 2 Remove the three screws then remove the cover PCB ...

Page 12: ...ides in the direction of the arrows then lift the rear cover to unlatch it from the bottom then remove the cover 3 5 Top Cover 1 Before you remove the top cover you should remove OPE cover see page 3 2 Rear cover see above 2 Slide the paper guide on the paper tray inwards Remove the two screws on the top cover then remove the cover Paper guides ...

Page 13: ...2 Rear cover see page 3 4 Top cover see page 3 4 Side covers see above 2 Take out the tray from the main frame 3 6 Side covers R L 1 Before you remove the top cover you should remove OPE cover see page 3 2 Rear cover see page 3 4 Top cover see page 3 4 2 Remove the two screws and pull the left and right side covers in the direction of arrow ...

Page 14: ...U you should remove All covers see page 3 2 3 4 3 5 2 Remove the three screws securing the LSU 3 9 Transfer Roller 1 Open the front cover 2 Lift the transfer roller using a proper tool as shown in the figure and take out the roller 3 Unplug two connectors from the LSU and remove the LSU ...

Page 15: ...re you remove the engine board you should remove All covers see page 3 2 3 4 3 5 LSU see page 3 6 2 Unplug the four connectors and remove the two screws from the engine board then pull the board in the direction of arrow 3 Remove the Insulator which was under the engine board ...

Page 16: ...2 3 4 3 5 LSU see page 3 6 2 Unplug all the connectors from the engine board 3 Remove the four screws securing the plate and remove the plate as shown below 4 Remove the two screws and remove the roller from the plate Note When you reassemble the pick up roller make sure that the right end of the pick up roller fits into the pick up gear shaft Pick up gear shaft ...

Page 17: ...Before you remove the knock up ass y you should remove All covers see page 3 2 3 4 3 5 LSU see page 3 6 Plate in the pick up roller ass y see page 3 8 2 Pull the knock up ass y fully backward 3 Remove the knock up ass y from the main frame Make sure it is properly unlatched ...

Page 18: ... 3 6 Plate in the pick up roller ass y see page 3 8 Knock up ass y see page 3 10 2 Take out the cap pad from the main frame 3 14 Holder pad 1 Before you remove the holder pad you should remove All covers see page 3 2 3 4 3 5 LSU see page 3 6 Plate in the pick up roller ass y see page 3 8 Knock up ass y see page 3 10 2 Remove the holder pad from the main frame ...

Page 19: ... see page 3 2 3 4 3 5 2 Remove the three screws securing the motor ass y and unplug one connector from the engine board then remove the motor ass y 3 16 Fan 1 Before you remove the fan you should remove All covers see page 3 2 3 4 3 5 2 Unplug the one connector on the fan from the engine board remove the one screw then remove the fan ...

Page 20: ...semble the gear make sure that the direction of the gear is correct 2 Spread out the two snap fits on the gear to release the gear then remove the gear pick up ass y from the main frame 3 18 Solenoid 1 Before you remove the solenoid you should remove All covers see page 3 2 3 4 3 5 2 Unplug the connector on the solenoid from the engine board remove the one screw then remove the solenoid ...

Page 21: ...Before you remove the HVPS board you should remove All covers see page 3 2 3 4 3 5 2 Remove three three screws and the connector from the HVPS board then remove the board Note when you reassemble the board make sure that the five terminals are correctly inserted in place ...

Page 22: ...ou remove the fuser ass y you should remove All covers see page 3 2 3 4 3 5 2 Remove the two ground screws and unplug the one connector as shown in the figure 3 Remove the one screw and unlatch the fuser ass y using a proper tool as shown in the figure then remove the fuser ass y ...

Page 23: ...should remove All covers see page 3 2 3 4 3 5 Fuser ass y see page 3 15 2 Lift and remove the pressure roller from the main frame 3 22 Actuator exit 1 Before you remove the actuator exit you should remove All covers see page 3 2 3 4 3 5 Fuser ass y see page 3 15 2 Lift and remove the actuator exit from the main frame ...

Page 24: ...ce up and remove the face up 4 Remove the two screws and take out thermostat from the fuser ass y 3 Remove the halogen lamp from the heat roller 3 24 Halogen Lamp 1 Before you remove the thermostat you should remove All covers see page 3 2 3 4 3 5 Fuser ass y see page 3 15 2 On the fuser ass y remove the two screws then remove the heat roller 3 On the fuser ass y remove the one screw then remove t...

Page 25: ...re you remove the thermister you should remove All covers see page 3 2 3 4 3 5 Fuser ass y see page 3 15 2 On the fuser ass y remove the heat roller as described on page 3 17 3 Unwrap the thermister wire as shown in the figure 4 Remove the one screw then remove the thermister ...

Page 26: ...move the four screws securing the shield engine ass y and remove the shield engine ass y from the main frame 3 27 SMPS Board 1 Before you remove the SMPS board you should remove Rear cover see page 3 4 Shield engine ass y see above 2 Remove the four screws and on the SMPS board unplug the two connectors from the SMPS board and the one connector from the main board then remove the SMPS board ...

Page 27: ...two screws unplug and all the con nectors from the main board then remove the board 3 29 Sensor Board 1 Before you remove the sensor board you should remove Rear cover see page 3 4 Shield engine ass y see page 3 19 2 Release four snap fits securing the insulator engine board and remove the insulator engine board 3 Release four snap fits securing the sensor board then remove the sensor board ...

Page 28: ...ty Sensor 1 Before you remove these parts you should remove Rear cover see page 3 4 Shield engine ass y see page 3 19 2 Unplug the one connector from the main board and remove the two screws securing the holder feed ass y then remove the holder feeder ass y 3 Remove the feed sensor and the empty sensor ...

Page 29: ...you should remove All covers see page 3 2 3 4 3 5 Motor ass y see page 3 12 2 Spread out the two snap fits on the gear to release the gear then remove gear feed spring clutch and clutch feed from the gear 3 Remove the feed roller from the holder 3 Rotate the pick up bushing in the direction of arrow then remove the the feed roller ass y ...

Page 30: ...Disassembly and Reassembly 3 22 Samsung Electronics MEMO ...

Page 31: ...PLACEMENT CYCLE Cartridge Pickup Roller Feed Roller Transfer Roller Fuser Driver 2 500 Pages 60 000 Pages 60 000 Pages 60 000 Pages 60 000 Pages 60 000 Pages 4 2 Print Quality No Roller Abnormal image period Kind of abnormal image 1 OPC Drum 75 4mm 2 Charge Roller 37 7mm Black spot 3 Supply Roller 26 8mm Horizontal density band 4 Develope Roller 31 6mm Horizontal density band 5 Transfer Roller 47 ...

Page 32: ...RINT command from the video controller 30 Feed Sensor On It means that paper is passing the feed sensor 40 Feed Sensor Off It means that paper passed the feed sensor 50 Paper out It means that paper passed the exit sensor 69 Sleep Mode It means that the printer fuser is turned off and the power consumption is minimized ERROR STATUS CODE If the printer stops printing by any malfunction the DCU disp...

Page 33: ... 03 TRANSFER HIGH VOLTAGE REFERENCE ON THV There is output of 1300V to THV terminal 04 DEV SUPPLY HIGH VOLTAGE There is output DEV and SUPPLY high voltage to each HV terminals At this time the left one of three LEDs Diagnostic Mode Indicator in the DCU lights and DEV HV is 630V To change this voltage push the UP button and two center and right of three LEDs light there are output 530V to DEV HV te...

Page 34: ... is all output of high voltages to each HV terminal and the LSU FAN operate In this mode the engine controller senses electric resistance of the transfer roller and output transfer high voltage corresponding to it If there isn t CRU in the machine THV output is 199V 2100V 14 PTL TEST This operation mean PTL LED status 15 FAN TEST This operation mean FAN status 4 3 4 Self Test Button When you push ...

Page 35: ...n the paper path causing the trouble NO OK after replacing developer Any obstacles on the developer blocking the laser beam OK after removing the obstacles Any obstacles ON mirror lens of LSU and laser path Remove the obstacles Replace the LSU Replace the developer END YES YES YES NO NO NO 4 4 Troubleshooting Flow Chart ...

Page 36: ...he defective component or board The mirror in LSU might be misplaced so the light path to the OPC deviates Repair or replace LSU or remove any deffective matters in the machine Self test pattern prints No image Self testing is possible via Tech Mode Is the OPC terminal of machine is well connected to Frame Does the video data line to LSU transit to High Low when printing Re test after replacing th...

Page 37: ...Is the connection of OPC GND and Frame Ground correct less than 10 Are the connection terminal and connection correct Repair or replace terminal Replace HVPS or repair defective component Is the connection terminal OK Check the connection of frame Ground and OPC GND Replace HVPS or repair defective component Repair or replace terminal Developing 350V and supplying 550V voltage are OK Does the coun...

Page 38: ...O YES Clean transfer roller and gear holder YES NO Replace the LSU Replace the developer Is it not over the guaranty life of dot counter Is the toner save mode or the light mode is selected Is the high voltage normal charging developing transfer Any obstacles on the gab between high voltage terminal and developer Transfer roller works OK OK after replacing LSU HVPS works OK Light image ...

Page 39: ...n LSU Transfer part s contact is bad Repair or replace toner cartridge Does the video data line to LSU transit to High Low when printing Replace LSU Check the path among video controller engine board HVPS LSU for the shortage or open Repair or replace the boards Repair or replace HVPS Replace LSU NO NO NO NO YES YES YES YES All Black ...

Page 40: ...material might be stuck to blade in the developer inside and it prevents toner supply Replace the toner cartridge Check both if the toner cartridge s counter is over its guaranty and amount of the toner material Replace the toner cartridge The ribs in fuser or toner on the roller may invoke the image problem Replace the fuser cover or the defective part The image is originally black or the black p...

Page 41: ...e Works correctly after replaced LSU Repair or replace the defective component The power of LSU is set high or internal problem Replace LSU or adjust voluem NO Toner over supply due to the adjustment fault of metering blade in developer Replace developer NO YES YES Dark Image ...

Page 42: ... the charge roller or replace step up device terminal after check Work OK Internal blade or suppying part of the developer is defective Replace the toner cartridge Check Terminals or contacts and Guide Deve Spring are misplaced Repair or replace transfer roller etc Print 20 to 30 pages using the recommended paper Same problem occurs Adjust voltage or replace HVPS Repair or replace after checking t...

Page 43: ...ace HVPS There may be a problem in toner layer control in toner cartridge Replace the developer Use the machine with recommended paper and at condition NO NO NO NO NO NO YES YES YES YES YES YES NO YES YES YES YES Check HVPS contacts and HVPS s self output If failed repair replace HVPS Repair or replace HVPS Check and Repair or replace the terminal contacts NO NO Is it regular interval of 31 6mm Is...

Page 44: ...he developer Bad image removes by scratching Check toner is stuck onto the P R or H R in fuser Clean it or replace The problem randomly occured due to the toner fallen Clean the machine Remove obstacles stuck on OPC drum s surface Perform the OPC cleaning using the control panel buttons END NO YES NO NO YES NO YES Does the same problesm persist Is it regular interval of 37 7mm Is it regular interv...

Page 45: ...place the developer This occurs when no Hsync at LSU Replace LSU 75 4 mm interval Heat roller is ruined Replace the roller The OPC is damaged due to the irregular transfer voltage of HVPS Repair replace HVPS If the same problem persists replace the developer Does it appear at every 56 1mm at specific place Problems of terminal contact transfer voltage supplying and transfer roller s due to the cha...

Page 46: ... Samsung Electronics Troubleshooting Transfer roller is clear Clean the transfer roller NO YES Paper path is clear Clean the paper path Clean the pressure roller NO YES Toner Contaminations on Back of Paper ...

Page 47: ... toner cartridge installed correctly Install the toner cartridge correctly NO Transfer roller works properly Clean the TR holder the TR gear OPC roller gear and the transfer roller NO Clean the contact point of transfer roller Check the output of high voltage terminal and adjust or replace if required Partial Blank Image not Periodic ...

Page 48: ... 1mm Transfer roller works properly OK after replacing the transfer roller Is it regular interval of 75 4mm 31 6mm or 37 7mm Replace the fuser 50 2mm 45 2mm or exit roller Clean the contact point of transfer roller Check the output of high voltage terminal and adjust or replace if required Replace the toner cartidge END YES YES NO YES NO YES Clean the TR holder the TR gear OPC roller gear and the ...

Page 49: ... repalce Check high voltage output and repair replace terminals HVPS Irregualrity of toner suppy from developer Repalce developer Light distortion due to the mirror ruined or LSU s diffused reflection Replace LSU NO NO YES YES YES YES NO NO OK after taking out and rocking the toner cartridge When gray pattern printing irregular density persists transfer charge developing voltage drops while printi...

Page 50: ...the OPC and machine or replace developer When putting in out the developer scratch is made Replace the developer Transfer voltage is normal D R in developing unit has the defect Replace the developer Too high voltage supplied due to the setting error of transfer voltage Adjust replace HVPS NO NO YES YES White Spot ...

Page 51: ...the fan temporarily stops and revolves Use the recommended film Other parts are touching the fan and prevents it from revolution Check and repair NO NO NO YES Set to OHP mode NO YES YES YES Is the OPC mode selected using the software application Recommended OHP film used Inserted over than 10 films into the MPF Trembling at the End When OHP Printing ...

Page 52: ... for a long time Place the machine at normal temperature and re test While printing the voltage of pin 208 of U5 CPU on Main board is 2 0V 2 3V Thermistor s contact is OK Open the top cover When black printing is the fuser NIP width is 1 2 3 0mm The paper used is too thick or contains too much cotton in it Re test with the recommended paper Check if the hardness of P R and spring force is OK sprin...

Page 53: ...he rating Connections on board are OK Re connect firmly and re test The connection error between controller board and panel board or malfunction of boards Replace the boards Fuse of SMPS if open Shortage between 5V and GND or between 24V and GND Replace the fuse Toner cartridge is in the set Detect failure due to the board which detects top cover open or switch error Replace the board or switch Pu...

Page 54: ...to the heat etc Replace the thermostat Check the PCI and fusing control part and CN502 on the SMPS Replace the component or replace the SMPS Measure the resistance at the both ends of AC Line with covers open Remove the covers Re assemble the top cover and close it Thermistor connecting point or engine board defect Repair replace the component board NO NO NO YES YES YES Fuser Error ...

Page 55: ...or and paper width detect sensor are assembled reverse Switch them The Sensor board defected Repair replace Too many papers in the feeder Paper guides fit the paper width Paper end curled Does the extender pulled out Recommendation Use the MPF for the thick paper such as envelope and cardstock Reduce the amount and re test Take out the paper and re insert Use the recommended and quality paper Pull...

Page 56: ...the recommended paper Check guide transfer is grounded Check the shutter prevents feeding Check the input path to the fuser such as mis assembly The actuator of paper exit sensor works OK Check the actuator exists and its operation and around the engine board Replace Is the paper rolled around the presseure roller Remove the fuser remove the paper and replace the pressure roller if necessary Feeds...

Page 57: ...ND NO Check CBF Harness28P MAIN B D to ENGINE B D YES Check MAIN B D CN9 6 HSYNC Signal Replace LSU NO YES Check MAIN B D CN9 3 P_MOTOR Signal Replace MAIN B D NO YES Check MAIN B D CN9 4 LREDADY Signal Replace LSU NO YES Check MAIN B D CN9 9 LDON Signal Replace MAIN B D NO YES LSU Error ...

Page 58: ...4 28 Samsung Electronics Troubleshooting Memo ...

Page 59: ...ded Views and Parts Lists 5 1 Main Exploded View 5 2 Front Exploded View 5 3 Engine Frame Lower Exploded View 5 4 Fuser Exploded View 5 5 Shield Engine Unit Exploded View 5 6 RX Drive Exploded View 5 7 Plate Upper Unit Exploded View ...

Page 60: ... Views and Parts Lists 5 2 Samsung Electronics 5 1 Main Exploded View S 1 S 1 S 1 SAMSUNG SAMSUNG 7 8 10 9 12 13 11 14 15 16 3 18 17 19 20 2 1 4 5 6 5 1 5 2 5 3 5 4 5 5 5 5 5 10 6 2 6 1 5 6 5 7 5 8 5 9 5 4 5 4 ...

Page 61: ...APTITE SCREW 6 X 6 MEC COVER REAR JC75 00094A 1 O 6 1 PMO TRAY_LARGE 1 X 6 2 PMO COVER REAR 1 X 7 PMO COVER TOP JC72 00522A 1 O 8 PMO COVER SIDE L JC72 00523A 1 O 9 PMO COVER SIDE R JC72 00524A 1 O 10 ELA HOU COVER FRONT JC96 01758A 1 O 11 UNIT LSU JC59 00006A 1 O 12 MEC PLATE UPPER JC75 00111A 1 O 13 IPR PLATE_CHANNEL JC70 00058A 1 O 14 PBA SUB MOTOR JC92 01273A 1 O 15 ELA HOU FRAME LOWER JC96 01...

Page 62: ...Exploded Views and Parts Lists 5 4 Samsung Electronics 5 2 Front Exploded View SAMSUNG SAMSUNG 0 2 10 8 6 1 10 4 5 3 11 7 12 9 ...

Page 63: ...96 01758A 1 O 1 CBF HARNESS PANEL MAIN 1 X 2 PMO COVER FRONT 1 X 3 PMO GUIDE STACKER 1 X 4 PMO DOOR FACE UP 1 X 5 PPR SHEET PAPER GUIDE 2 X 6 PMO KEY A 1 X 7 PMO KEY B 1 X 8 PMO LENS SED 1 X 9 PMO COVER PCB 1 X 10 PMO STOPPER 1 X 11 PMO BRKT PUSH DEVE 1 X 12 PBA SUB DISP PANEL 1 X SA Service Available O Service available X Service not available ...

Page 64: ... 3 3 2 1 2 3 2 12 2 15 2 14 2 13 3 2 3 2 2 3 2 3 3 2 1 3 2 4 3 43 3 44 3 12 3 5 3 17 3 6 3 6 3 4 3 15 2 11 1 2 16 2 16 2 2 16 1 3 3 41 3 25 3 16 3 24 3 22 3 23 3 21 3 46 3 8 3 7 3 27 3 28 3 10 3 47 3 9 3 10 1 3 10 2 3 22 3 23 3 21 3 11 3 13 3 14 3 26 3 38 3 36 3 35 3 40 3 20 3 37 3 45 3 30 2 6 2 5 2 2 2 2 2 3 2 2 1 2 2 2 1 3 1 3 26 3 31 3 39 3 32 3 29 3 19 3 18 3 42 3 34 3 33 2 4 ...

Page 65: ...A 1 O 2 7 MEC KNOCKUP ASS Y JC75 00053A 1 O 2 7 1 PMO PLATE_KNOCKUP 1 X 2 7 2 PMO CAM KNOCKUP 1 X 2 7 3 IPR BAR_KNOCKUP 1 X S 6 SCREW TAPTITE 2 X 2 8 SPRING KNOCK UP JC61 00023A 1 O 2 9 MEC HOLDER PAD JC75 00093A 1 O 2 9 1 PMO HOLDER_PAD JC72 00535A 1 O 2 9 2 PMO HOLDER_PAD 1 X 2 9 3 RPR PAD FRICTION 1 X 2 9 4 SPRING PAD 2 X 2 10 PMO CAP_PAD JC72 00124A 2 O 2 11 MEC SIDE PAD R JC75 00051B 1 O 2 12...

Page 66: ...EV R 1 X 3 5 PMO CAP PLTE GU DEV L 1 X 3 6 SPRING GUIDE DEVE 2 X 3 7 PMO ACTUATOR_EXIT 1 X 3 8 PMO HOLDER_EXIT 1 X 3 9 PMO BUSHING_TERMINAL 1 X 3 10 ELA HOU OPEN SENSOR 1 X 3 10 1 IPR BRKT_SENSOR 1 X 3 10 2 CBF HARNESS COVER 1 X S 10 SCREW TAPTITE 1 X 3 11 IPR GUIDE TR 1 X 3 12 IPR PLATE TERMINAL 1 X 3 13 IPR SAW_PLATE 1 X 3 14 PCT FILM SAW 1 X 3 15 IPR EARTH_TRANS 1 X 3 16 IPR GROUND_GUIDE 1 X 3 ...

Page 67: ... 3 32 PMO GEAR_83 35 1 X 3 33 SPRING FUSER DR 1 X 3 34 PMO GEAR_FU_IN 47 1 X 3 35 PMO GEAR_FU_OUT 47 1 X 3 36 MEC ROLLER FEED 1 X 3 37 PBA MAIN SENSOR 1 X 3 38 EMC HOLDER FEED 1 X 3 39 CBF HARNESS MOTOR GND 1 X 3 40 IRP BRKT FUSER DRV 1 X 3 41 PMO HINGE FRONT L 1 X 3 42 PMO HINGE FRONT R 1 X 3 43 PMO COVER PTL 1 X 3 44 ELA HOU PTL 1 X 3 45 PCT INSULATOR SENSOR BD 1 X 3 46 PMO FRONT FUSER 1 X 3 47 ...

Page 68: ...Exploded Views and Parts Lists 5 10 Samsung Electronics 5 4 Fuser Exploded View 15 1 15 14 14 2 14 1 10 17 22 11 18 4 12 2 7 13 9 5 1 8 6 19 3 20 S 1 S 1 S 1 S 2 0 24 30 29 27 26 28 21 24 23 25 17 16 ...

Page 69: ...UIDE CLAW 5 X 12 ELECTRODE WIRE 1 1 X 13 ELECTRODE WIRE S 1 X 14 MEA ETC SHAFT EXIT 1 X 14 1 PMO SHAFT_EXIT Z15 1 X 14 2 RMO RUBBER_EXIT 4 X 15 PMO ROLLER_IDLE EXIT 4 O 15 1 IPR PIN ROLLER EXIT 4 X 16 SPRING EXIT 4 X 17 PMO GEAR_EXIT_DRV16 1 X 18 PMO GEAR_EXIT_IDLE 1 X 19 PMO GEAR_FUSER 1 X 20 LABEL R CAU_HOT_FU 1 X 21 SPRING EXIT DOWN 4 X 22 SPRING ES GUIDE CLAW 4 X 23 GEAR EXIT F DOWN 5 X 24 BEA...

Page 70: ...Exploded Views and Parts Lists 5 12 Samsung Electronics 5 5 Shield Engine Unit Exploded View 1 2 1 1 1 3 4 2 0 ...

Page 71: ...NGINE 1 X 1 MEC SHIELD BRKT CONTROLLER 1 X 1 1 IPR SHIELD ENGINE 1 X 1 2 IPR BRKT CONTROLLER JC70 00131A 1 O 2 PCT INSULATOR SMPS JC72 00555A 1 O 3 CBF HARNESS SWITCH ASS Y JC39 00117A 1 O 4 CBF HARNESS INLET ASS Y JC39 00116A 1 O S 1 SCREW MACHINE X S 2 SCREW TAPTITE X S 3 SCREW TAPTITE X SA Service Available O Service available X Service not available ...

Page 72: ...Exploded Views and Parts Lists 5 14 Samsung Electronics 5 6 RX Drive Exploded View 1 4 2 3 5 6 7 S 7 S 7 0 ...

Page 73: ...SEC Code Q ty SA Remark 0 ELA HOU RX DRIVE JC96 01755A 1 O 1 MOTOR STEP JC31 00005A 1 O 2 PMO GEAR_71 28 1 X 3 PMO GEAR_73 22 1 X 4 PMO GEAR_132 19 1 X 5 IPR BRKT_MOTOR 1 X 6 IPR BRKT_GEAR 1 X 7 CBF HARNESS_MOTOR 1 X S 7 SCREW MACHINE 5 X SA Service Available O Service available X Service not available ...

Page 74: ...Exploded Views and Parts Lists 5 16 Samsung Electronics 5 7 Plate Upper Unit Exploded View 0 6 4 4 1 4 2 4 3 2 2 3 1 3 2 3 3 3 3 3 4 4 1 4 2 4 3 5 1 ...

Page 75: ... X 2 IPR PLATE SPRING DEV 2 X 3 MEA ETC ROLLER PICKUP 1 X 3 1 PMO HOUSING_PICKUP 1 X 3 2 RMO ROLLER_PICKUP 1 X 3 3 PMO IDLE_PICKUP 2 X 4 MEA ETC IDLE FEED 2 X 4 1 PMO HOLDER_PICKUP 1 X 4 2 SPRING FEED 1 X 4 3 PMO HOLDER_IDLE FEED 1 X 5 ICT ROLLER_IDLE FEED 1 X 6 CABLE CLAMP 1 X S 1 SCREW TAPTITE 3 X S 9 SCREW TAPTITE 2 X SA Service Available O Service available X Service not available ...

Page 76: ...Exploded Views and Parts Lists 5 18 Samsung Electronics Memo ...

Page 77: ...L DRAM 2MB DRAM 2MB PC S MPS PANEL B D FLASH MEMORY 1MB 5V POWER CORD 24V MOT OR SOLEN OIDE ENGINE B D FAN EXIT SEN SOR HVPS B D MHV OPC GND SUPPLY DEV T HV BUFF ER PW M MH VP WM BIASPWM T H VPWM POWER SWIT CH IN LET LED KEY UART IEEE1 2 8 4 CABLE MODEM CLOCK IN 9 5 MHz VOLT AGE DET E CT OR P owe r On Re s et SENSOR B D ...

Page 78: ...Memo Samsung Electronics 7 2 Block diagram ...

Page 79: ...2 R77 OSC3 OSC1 OSC4 Q1 C7 U13 U6 9 2 1 U5 U13 BD4 BD3 C6 CN2 U10 U9 C5 U11 74F14 10 DM7406MX LM393D KM416C1200BLJ 6 CN8 DCU CN4 SMPS ML 4500 GDI BAR CODE KM416C1200BLJ 6 PTL CN10 C31 C105 R72 15 B2 C24 L8 L7 L6 L3 L4 L2 B1 C25 R47 R117 C23 C126 R11 C35 R79 150 KM93C66G KS32C65100 140 130 110 120 160 D3 R87 C51 C38 U3 C68 C39 C52 C32 C33 C34 C123 C37 C36 F7 L5 R106 R110 R108 R65 R109 100 90 80 70 ...

Page 80: ...13 C106 C81 R40 C130 C124 C103 C109 C105 C102 C50 C15 C14 C57 C56 C55 C54 C53 R119 C120 R41 R28 D1 C87 R97 R99 C80 R20 R15 C11 C12 C103 C10 C79 C86 L1 R17 D7 D6 C47 C49 C81 C78 C77 C85 B4 R80 R101 R49 R50 R51 R52 R62 R63 R64 C46 R53 C63 C64 C71 C72 C73 C74 C70 C69 C16 D10 R21 R69 B6 B7 R71 D8 R70 C119 R107 C99 D11 R45 R42 R30 R26 C94 C91 R19 R44 C96 C93 C104 R18 C95 C92 R43 C44 C98 B5 C43 C45 PCB ...

Page 81: ...J4 R1 R9 Q6 R4 R14 Q2 R12 R28 R23 R19 R18 U2 C13 C14 R5 R20 C12 Q4 Q3 D3 J3 R21 R6 CN6 MOTOR D4 1 TEA3718DP C1 R25 R27 C11 U1 J11 R26 J14 J13 J5 CN4 DEV_FUSE 1 J6 J9 2 1 J10 R10 J15 E B C E B C E B C E B C TEA3718DP CN5 CN2 CN1 Q1 D1 D2 J8 1 1 1 FAN SOL PTL SF 5100 ENGINE PBA REV 02 JC92 01154A ...

Page 82: ...m CN4 J6 J9 J10 J14 J13 J5 J11 Q6 R10 R9 R14 R12 R4 C10 J2 R17 C1 C9 R20 R24 J1 J7 R1 R4 Q2 R25 R23 C11 R19 R21 J3 C B E C B E C B E C B E Q4 R6 D4 D3 Q3 R5 R20 C12 R18 CN8 R27 R25 J15 D2 D1 CN1 CN2 CN5 C13 SF 5100 ENGINE PCB REV 02 JC41 00031A C14 CN5 CN5 CN5 CN5 J8 ...

Page 83: ... P S 5V 5V GND5 GND5 GND5 FUSER_ON GND24 GND24 24V 24V EXIT UNUSED GND5 GND24 24VS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 5V GND5 LED_ERROR LED_PAPER LED_DATA LED_TONER KEY_TONER KEY_CANCEL KEY_DEMO 1 2 3 4 5 6 7 8 9 LED DISPLAY PANEL 1 2 3 4 5 6 7 8 9 1 2 PTL LED ARRAY 1 2 24V GND24 THVPWM THV_EA THVREAD MHV BIASPWM 5V GND5 1 2 3 4 5 6 7 8 9 H V P S 1 2 3 4 5 6 7 8 9 THERM_A THERM_B 1 2 1 2 THERMIST...

Page 84: ...Memo Samsung Electronics 8 2 Connection diagram ...

Page 85: ...6 CN1 1 5 C39 1nF 23 1K R109 D7 MMSD914T1 1nF C38 R60 5 1K R56 5 1K 100nF C102 100pF GND5 1nF C37 C64 5 1K 22 GND5 FGND 5V R54 32 1K R33 5V 5V GND5 SEN_5V 21 1K R36 R64 200 100nF 1nF C36 CN3 1 1 C100 18 5V 13 29 12 10 11 8 GND5 F2 2 1 3 R65 STS104B C73 470pF 33K GND24 C54 220pF C101 100nF SEN_5V 24VS 200 R63 10K R108 GND5 R55 5 1K MMSD914T1 D6 C74 470pF C60 220pF 7 9 9 8 1K R39 74F14 U11 4 R38 1K ...

Page 86: ...O RTC_VDD 201 202 RTC_XIN 203 38 PHOE9 GPIO 40 PLL_FIL 183 142 PPD0 PPD1 143 144 PPD2 145 PPD3 146 PPD4 147 PHOE16 _HOED PHOE1 GPIO 31 32 PHOE2 GPIO PHOE3 GPIO 33 PHOE4 GPIO 34 PHOE5 GPIO 35 PHOE6 GPIO 36 PHOE7 GPIO 37 PHOE8 GPIO 157 PERROR 41 PHOE10 GPIO PHOE11 GPIO 42 43 PHOE12 GPIO 44 PHOE13 _HOEA 45 PHOE14 _HOEB 46 PHOE15 _HOEC 47 165 LF_CUR1 167 LF_CUR2 168 LF_CUR3 LF_PH0 GPO 163 166 LF_PH1 G...

Page 87: ...8 DQ9 33 GND1 22 37 GND2 GND3 42 31 LCAS 16 NC1 NC2 15 NC3 11 A1 18 19 A2 A3 20 23 A4 A5 24 25 A6 A7 26 27 A8 A9 28 DQ1 2 34 DQ10 DQ11 35 36 DQ12 DQ13 38 39 DQ14 DQ15 40 U9 KM416C1200BLJ 6 17 A0 1nF C33 GND5 1nF C32 100nF C93 14 30 UCAS VCC1 1 6 VCC2 VCC3 21 WR 13 DQ4 7 DQ5 DQ6 8 9 DQ7 DQ8 10 33 DQ9 22 GND1 GND2 37 GND3 42 LCAS 31 NC1 16 15 NC2 11 NC3 12 NC4 NC5 32 29 OE RAS 23 24 A5 A6 25 26 A7 A...

Page 88: ...38 37 D5 D6 36 100nF UNICON U2 C107 27 27 R71 5V R70 1 3 2 5V R69 470 D9 22pF C13 C66 C22 39pF C65 22pF 22pF R68 100nF 1 5K 5V C106 1 3 2 GND5 GND5 GND5 GND5 5V C130 100pF GND5 D10 GND5 GND5 100pF C129 F4 2 1 3 B3 STS104B R122 STS104B F5 2 1 3 100 C3 22uF 16V 1 3 2 22uF C4 D8 R104 10K GND5 16V GND5 C16 1nF GND5 10K R21 33 R124 C14 100pF 22pF C17 GND5 GND5 B7 R23 33 22pF C19 OSC2 1 GND5 GND5 C50 1n...

Page 89: ... GND24 2 1 3 GND5 STS104B F7 L7 L8 L6 L5 L4 R112 100 C135 1nF R132 10K 22 GND5 5V 21 23 1nF C29 C41 1nF CN9 1 35301 0250 1 CN7 1 1 C122 100nF GND5 GND24 10K R93 10K R92 10K 5V R91 C62 100pF GND5 1nF C42 STS104B F1 2 1 3 GND5 5 6K R14 Q4 KSC1623 G 1 3 2 L3 2 L2 20 5V 10K R88 6 15 14 16 C61 1nF C26 33 100pF R72 C43 1nF 4 R126 1M 5 3 C118 10nF 10K R89 GND5 C28 1nF C27 1nF GND5 GND24 28 C123 100nF C30...

Page 90: ...3 1 R9 R14 KSC1008 Y Q6 R12 12K 3 2 1 4 7K D2 1N4148 KSB1151 Y Q1 Q2 KSC1008 Y 2 3 1 1K R27 1 2 GND5 2 35303 0250 CN2 1 D4 1N4003T R 35301 0350 CN5 1 1 24VS GND5 GND24 GND24 GND24 5 6K R5 R28 820 C15 100nF GND24 GND24 1 2 2 3 1 CN6 1 2011P04V000 24VS 5V KSC1008 Y Q3 56K GND24 R24 R17 1K 0 5 R26 5V 1N4003T R D3 10K R23 820pF C10 14 R25 0 5 5V GND24 GND5 GND24 5V R10 5 6K 13 24VS 1 5V 2 35303 0250 C...

Page 91: ...Schematic Diagrams 10 7 Samsung Electronics 10 3 HVPS Circuit Diagram 1 2 ...

Page 92: ...Schematic Diagrams 10 8 Samsung Electronics HVPS Circuit Diagram 2 2 ...

Page 93: ...Schematic Diagrams 10 9 Samsung Electronics 10 4 Panel Circuit Diagram ...

Page 94: ...22MAD C503 222MAD C506 630V 103 R504 82 1W R505 3W 47K R508 30 C509 50V 33uF C508 100V 223 R507 1W 0 37 D508 SF60 04 C517 50V 1000uF C520 16V 1000uF R518 4 3K R519 510 R521 2 2K F R520 2 2K F C522 10V 470uF D501x4 1N5406 C510 222MAD C523 50V 104 C518 50V 104 R524 150 R523 15K OP501 ITR8406 S R516 500 5W TNR502 102K LF502 0540 CN502 1 2 U502 T16A6CI PC502 MOC3061 L501 300uH C511 500V 103 R511 1W 12...

Page 95: ...H CN501 L F G N C504 224 C502 222MAD C503 222MAD C506 630V 103 R505 3W 47K D506 200V1A R508 30 C509 50V 33uF C508 100V 223 R507 1W 0 75 D508 SF60 04 C517 50V 1000uF C520 16V 1000uF R518 4 3K R519 510 R521 2 2K F R520 2 2K F C522 10V 470uF D501x4 1N5406 C510 332MAD U501 STRT G6153 VCC 5 DRAIN 1 OCP 2 GND 3 FB 4 R503 1W 100K C523 50V 104 C518 50V 104 R524 150 R523 15K OP501 ITR8406 S R516 500 5W LF5...

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