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Samsung CLP 510N - Color Laser Printer, Service Manual

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Samsung CLP 510N - Color Laser Printer Service Manual Download Page 96

6-47

Samsung Electronics

Disassembly and Reassembly

Service Manual

3) Turn the set upside down and Release the shaft retaining bearing and slid it away from the roller.

Release the Pick Up spring.

4) Push the rollers firmly towards the frame, if necessary rotate the shaft so that the rubbers do not contact

the frame. Release the shaft and bush from the end support. Note this support is fragile take great care.
Then slide the shaft back away from the frame to remove it.

A Shaft retaining bearing

A Shaft retaining bearing

C. Bush and Support

C. Bush and Support

B. Spring

B. Spring

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Summary of Contents for CLP 510N - Color Laser Printer

Page 1: ...TER CONTENTS 1 Precautions 2 Reference Information 3 Specifications 4 Summary of product 5 System Outline 6 Disassembly and Reassembly 7 Alignment and Adjustments 8 Troubleshooting 9 Exploded Views and Parts List 10 Block Diagram 11 Connection Diagram Basic Model CLP 510 CLP 510N ...

Page 2: ...ccess to laser radiation above a Class I level during normal operation user maintenance or prescribed service condition Warning Never operate or service the printer with the protective cover removed from Laser Scanner assembly The reflected beam although invisible can damage your eyes When using this product these basic safety pre cautions should always be followed to reduce risk of fire electric ...

Page 3: ...ng the power connector The power connector must be inserted com pletely otherwise a poor contact could cause overheating possibly leading to a fire When removing the power connector grip it firmly and pull 7 Take care of the power cable Do not allow it to become twisted bent sharply round corners or other wise damaged Do not place objects on top of the power cable If the power cable is damaged it ...

Page 4: ...e following procedures before dismantling the printer or replacing any parts 1 Check the contents of the machine memory and make a note of any user settings These will be erased if the mainboard or network card is replaced 2 Ensure that power is disconnected before servicing or replacing any electrical parts 3 Disconnect printer interface cables and power cables 4 Only use approved spare parts Ens...

Page 5: ...d cause injury 3 When you move the printer This printer weighs 32kg including toner cartridge and cassette Use safe lifting and handling techniques Use the lifting handles located on each side of the machine Back injury could be caused if you do not lift carefully 4 Ensure the printer is installed safely The printer weighs 32Kg ensure the printer is installed on a level surface capable of supporti...

Page 6: ...rges sufficient to damage ESDs 5 Do not use Freon propelled chemicals When sprayed these can generate electrical charges sufficient to dam age 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 compa rable conductive material 7 Immediatel...

Page 7: ...1 6 Precautions Service Manual MEMO ...

Page 8: ...hooting The following tools are recommended safe and easy troubleshooting as described in this service manual DVM Digital Volt Meter Standard Indicates more than 3 digits Driver Standard type type M3 long M3 short M2 long M2 short Tweezers Standard For general home use small type Cotton Swab Standard For general home use for medical service Cleaning Equipments Standard An IPA IsopropylAlcohol dry ...

Page 9: ...mic Random Access Memory DVM Digital Voltmeter ECP Enhanced Capability Port ECU Engine Control Unit EEPROM Electronically Erasable Programmable Read Only Memory EMI Electro Magnetic Interference EP Electro photographic EPP Enhanced Parallel Port F W Firmware FCF FCT First Cassette Feeder First Cassette Tray FISO Front In Side Out FPOT First Print out Time GDI Windows Graphic Device Interface GIF G...

Page 10: ...ng Packet internet or Inter Network Groper PPD Postscript Printer Discription PPM Page Per Minute PS Post Script PS3 Post Script Level3 PTL Pre Transfer Lamp PWM Pulse Width Moduration Q ty Quantity RAM Random Access Memory RCP Remote Control Panel ROM Read Only Memory SCF SCT Second Cassette Feeder Second Cassette Tray SMPS Switching Mode Power Supply SPGP Samsung Printer Graphic Processor SPL Sa...

Page 11: ...er ventilation see diagram below Provide the proper environment A firm level surface Away from the direct airflow of air conditioners heaters or ventilators Free of extreme fluctuations of temperature sunlight or humidity Clean dry and free of dust 2 4 Reference Information Samsung Electronics Service Manual ...

Page 12: ...2 5 Samsung Electronics Reference Information Service Manual 2 4 A4 ISO 19752 Standard Pattern This test page is reproduced at 70 of the normal A4 size ...

Page 13: ...ypes of desk top PC or Lap top that uses the wireless LAN About the certificated mark of Wi FiTM Wi FiTM is a registered trademark of the WECA Wireless Ethernet Compatibility Alliance Over 50 wireless LAN companies are member of this organisation Most of the main wireless networking companies are attending including such companies as Lucent Technologies Cisco Intel Symbol 3Com Enterasys Cabletron ...

Page 14: ...an 99 sec First Print Time Mono 15 seconds Ready to 1st page out Color 24 seconds Ready to 1st page out Feed Method Cassette MPT Multi Purpose Tray SCT Second Cassette Tray Media Size 76 X 128mm 3 x 5 to 216 X 356mm 8 5 X 14 Media Thickness Cassette 16 24 lb MPT 16 43 lb Dimension W X D X H 510 X 470 X 405 mm Weight Net 25 5 Kg 56 2Lbs Gross 32 0 Kg 70 5Lbs Acoustic Noise Stand by More than 40 dBA...

Page 15: ...a Asia only Modes supported Compatible Nibble Byte ECP USB without HUB mode USB 2 0 compliant 12 480 Mbps 1 port Network Interface 10 100 Base TX 10 100 Base TX 802 11b Wireless LAN Interface switching Automatic Interface time out 5min Max Font Windows font PS english font PCL english font Color Management ICC ICM V3 4 Memory Slots Standard Capacity is 64MB Option Capacity is 320MB Max 100Pin 1 sl...

Page 16: ... replace color 12 500 pages ITB Unit T1 Roller mono 50 000 pages User replace color 12 500 pages Waste Toner Tank 3 000 images User replace Fuser Unit simplex 100 000 page Mono 50 000 page Color Engineer duplex 50 000 page Mono 25 000 page Color Transfer Roller T2 Roller simplex 50 000 page Engineer duplex 25 000 page Option SCT Paper capacity 500sheets Second Cassette Tray Paper weight 60 90 g m2...

Page 17: ...7 O A5 148 5 X 210 O A6 105 X148 5 O Com 10 Envelope 105 X 241 4 15 X 9 5 O Monarch Envelope 98 X191 3 87 X 7 5 O DL Envelope 110 X 220 4 33 X 8 66 O C5 Envelope 162 X 229 6 38 X 9 01 O C6 Envelope 114 X 162 4 49 X 6 38 O Transparency OHP A4 or Letter O Label paper A4 or Letter O 3 6 2 Input Capacity 3 6 1 input Paper Size Items Descriptions Remarks Cassette FCT 250 sheets MP tray Paper 100 sheets...

Page 18: ...em HVPS Eraser Lamp Eraser Lamp HVPS DEV Black DEV Yellow OPC Pick up Roller DEV Magenta DEV Cyan CASSETTE LSU ITB Unit Feeder DUPLEX T2 Roller Fuser Unit EXIT Unit MPF Path M P F M P T DEV Black DEV Yellow OPC Pick up Roller DEV Magenta DEV Cyan SCF SCT FCT LSU Deve Cover Deve Cover ITB Unit Feeder DUPLEX T2 Roller Fuser Unit EXIT Unit PTL PTL SCF Path Pick up Roller Pick up Roller Pick up Roller...

Page 19: ...EM PBA Panel PBA Waster Toner Sensor Waster Toner Motor SMPS SMPS Main Drive Main Drive Fan Fan Deve Drive Deve Drive DeveDrivePBA DeveDrivePBA Duplex Cover Open S W Duplex Cover Open S W Deve Cover Open S W Deve Cover Open S W Main Conrtoller PBA Main Conrtoller PBA Rear View ...

Page 20: ... onto paper This is called the T2 Transfer Secondary Image Transfer 4 FCT First Cassette Tray It stores and automatically feeds print paper Pick up Roller picks up paper controls drive feeds paper removes static electricity and so on Spec Paper arrange way Side Registration Paper Direction FISO Front in Side Out Cassette Type A4 Ltr Paper Discharge Separation Claw Capacity 250 Sheets Standard pape...

Page 21: ...per Reverse Function After the front side of the original document is printed it is transferred to the duplex unit in order to print the reverse side of original document The motor drives the exit roller in the reverse direction to feed the paper back into the machine 9 Exit Unit The Exit Unit guides paper that is just about to leave the print engine Printed paper is discharged by the Exit Roller ...

Page 22: ...ntrols various devices that are needed to operate the printer Engine Control Block This manages images and controls various kinds of I O Memory Block The operating system uses this to store video data and printing orders given by host ROM Block The printer OS and PDL Interpreter are stored here In addition there are USB 2 0 Block IEEE 1284 Block Option Block OPE Panel etc 18 DEVE Drive PBA Each to...

Page 23: ...e Description 1 Main Motor Drives the OPC unit ITB unit feeder unit fuser unit exit unit and duplex unit 2 DEVE Motor Drives C M Y and K toner cartridges and ITB cleaning cam 3 Fan Forces cold air into the printer and takes out heat from the fuser 4 Waste Toner Motor Transfers collected waste toner from the OPC drum and ITB to the waste toner tank Refer to front view picture on 4 2 page ...

Page 24: ...ls the High Voltage supply to the cyan cartridge 2 K DEVE solenoid Controls the High Voltage supply to the black cartridge 3 Y DEVE solenoid Controls the High Voltage supply to the yellow cartridge 4 M DEVE solenoid Controls the High Voltage supply to the magenta cartridge 5 Pick up solenoid Controls the pick up roller drive 6 MP Pick up solenoid Controls the MP pick up roller drive 7 Duplex solen...

Page 25: ...time after paper pick up otherwise a JAM is detected 5 ITB Home Sensor This detects the position of the image transfer belt and in dicates the start location for image writing It is used to ensure that all 4 colour images are correctly registered 6 Waste Toner Sensor This detects whether the waste toner tank is mounted or not and the amount of waste toner in the tank 7 Exit Sensor This detects whe...

Page 26: ...N33 DUPLEX CN26 T2 HOME BLDC1 TH1 FUSER_FAN SMPS MP_EMPT MP SOL FEED CN25 PICK_UP CN23 CLT_FEED CN21 EMPT CN1 CN16 SCF CN12 LSU CN6 OPC KEY CN5 DEVE_DRIVER DEVE_DRIVER CN14 LSU SW CN17 WASTE TONER EXIT CN15 TH3 CN4 PANEL LAN CN7 HVPS CN11 PTL TH4 CN35 SOL_ITB_CLN CN38 BLDC2 CN37 OEM_CONN For Test CN10 ITB CN9 NIC Option NIC ...

Page 27: ...4 10 Summary of Product Samsung Electronics Service Manual RAM DIMM SPGPm Main Control FLASH MEMORY OSC2 12MHz Reserved OSC1 12MHz LPEC1 ENGINE CONTROL OSC3 23 8807368MHz U36 Counter Memory ...

Page 28: ...h is passed to the engine block for printing The CPU is also used to control various other devices e g the USB 2 0 Interface chip 2 SPGPm overview Package 272 pins PBGA Power 1 8V Core 3 3V IO power operation P1284 inputs 5V tolerant Speed 120MHz core ARM946ES operation 60MHz bus operation Supportable Engine Speed under 30ppm Dual bus architecture for bus traffic distribution AMBA High performance...

Page 29: ...ata transceivers RSH Fully Hardware Rotator Scaler and Halftoner support Variable Image Scaler and Image Halftoning Unit for PCL6 Pattern Gamma Table Memory 1024 x 8 256 x 8 x 4 Graphic Execution Unit for Banding support of Printer Languages Support up to 256 Bit Block Transfer Scan Line Transfer Polygon Filling Enhanced Graphic Order Compression Decompression CODEC Simplified JBIG algorithm for b...

Page 30: ...burst modes 4 words burst and 8 words burst are supported USB 2 0 interface USB 1 1 backward compatible UDC USB Device Controller block and USB Physical block are integrated Both of High Speed 480Mbps and Full Speed 12Mbps are supported 2 DMA channels support one RX Channel and one TX Channel Interrupt transfer support up to 6 Endpoints EP0 In Out Control transfer EP1 In Out Bulk transfer EP2 In O...

Page 31: ...he SPGPm processor ECP mode is supported 7 Option Block An Ethernet card can be attached using the 100 pin connector It is connected directly to the SPGPm processor and communicates using a 16bit bus 8 OPE Panel The OPE panel is controlled by a UART Block located in the SPGPm and it displays printer status and helps the user to setup the printer Various data is transferred using a serial interface...

Page 32: ...power to the fuser 1 DC output Main controller PBA OP panel SCF Developer driver PBA 2 AC output Fuser unit Heat lamp Thermostat 3 Output voltage NO Item CH1 CH2 CH3 CH4 1 Channel name 3 3V 5V 24 0V 24 0VF 2 Rated outputting voltage 3 3V 4 5V 4 24V 15 10 24V 15 10 3 Rated outputting crrunt 2 5A 0 5A 1A 2A 4 Uses MICOM CMOS MICOM CMOS MOTOR FAN MOTOR FAN LOGIC LOGIC CON4 CON3 CON1 CON2 CON4 CON3 CO...

Page 33: ...h voltages used by the charger supply T1 T2 and DEVE processes For bests quality images these high voltages must be controlled accurately to maintain the print quality The high voltages produced are supplied to toner OPC cartridge ITB unit and transfer roller CHARGER RED T1 BLACK T2 RED SUPPLY BLACK CN1 CN2 T1 T2 SUPPLY SUPPLY T1 T2 CHARGER CHARGER CN1 CN1 CN2 CN2 ...

Page 34: ...s high voltage is use to transfer toner from the ITB to the paper Output voltage 400V 5KV DC 3 Duty is changeable no loading Error type If T2 was not present it is not possible to transfer toner from the ITB to the paper As a result printing output could be faint 4 Cleaning voltage T2 This high voltage is used to transfer toner remains on transfer roller from the Transfer Roller to the ITB unit Ou...

Page 35: ...4 18 Summary of Product Samsung Electronics Service Manual MEMO ...

Page 36: ...cture OPC drum The laser light coming from the LSU forms an latent electric image on the surface of the OPC drum Cleaning Blade Removes remaining unwanted toner from the OPC drum Waste toner tank Collects and stores the waste toner Charge roller The charge roller is charged to a negative high voltage 1KV 1 5KV It is in con tact with the OPC drum and produces a uniform voltage on its surface of app...

Page 37: ...he beam is off where ink is required the beam is turned on When the laser is on and the beam strikes the OPC drum surface the charge is reduced to 50V where the beam is switched off the charge on the OPC surface remains at 600V In consequence a latent image is formed on the drum surface 600V 600V 50V Reflecting Mirror Polygon Motor 30 000rpm Unexposed Expesed Unexposed ...

Page 38: ...0V 3 Toner is attracted to the OPC drum in those areas where the OPC drum surface charge is 50V Toner is not attracted to those areas of the surface carrying a 600V charge 1 Type Developing method Non magnetic Mono component developing system Toner cartridge order K Y M C from top Developing sequence Y M C K Life span 7K K 5K C M Y Power DEVE motor BLDC Power transmission Electric clutch Dot count...

Page 39: ...sferred onto the ITB adding to the 2 colors already present on the ITB 4 A latent image containing only black toner is created on the OPC drum and then transferred onto the ITB creating an image on the ITB consisting of the 4 colors 5 The Image on the ITB is secondly transferred onto paper using the T2 transfer roller 6 The image on the page is then fused and the paper is ejected into the output t...

Page 40: ...or image from the OPC drum Colors are transferred in the order Y M C K 2 Image Transfer Belt cleaner After the final image is transferred onto paper any waste toner is removed from the transfer belt using this cleaning blade 3 PTL Pre Transfer Lamp Reduce the electric potential of OPC Drum surface before primary image transfer the image on the OPC Drum 4 Image Transfer Roller T2 Roller This transf...

Page 41: ...on the ITB by transferring these sepa rate color images from the OPC drum DUPLEX OPC DRUM Primary Image Transfer Bias Image Transfer Belt Image Transfer Roller HVPS 3 PTL Pre Transfer Lamp It is arrayed LED on PCB Board Main function is improving the T1 utility factor by reducing the adhesive strength of OPC and Toner by irradiation on the OPC Drum formatted the image DUPLEX OPC DRUM LED PTL Image...

Page 42: ...t onto the paper When the image is to be transferred from the ITB to the paper the image transfer roller pressure contact solenoid is activated and this activates a cam which moves the T2 roller into contact with the belt After the transfer has taken place any remaining charge on the paper is removed by applying a charge removal bias generated in the HVPS to a charge removal plate Type Transfer me...

Page 43: ...ller at a steady temperature 3 Heat Roller 2pieces Halogen lamps are used to heat the heat rollers The heat rollers have a special Teflon surface which ensures that any melted toner which comes into contact with the heat roller surface does not stick Paper passes between the two rollers which evenly heat the paper from both sides to melt the toner and semi permanently fix it to the paper 4 Safety ...

Page 44: ...ner scrapes waste toner from the image transfer belt and the waste toner is collected into a waste toner tank 1 Waste toner tank sensor A waste toner sensor detects the presence of the waste toner tank and also detects if the tank is full This is an On Off detection Do not operate the printer without a waste toner tank No waste toner tank When the waste toner tank is not installed the waste toner ...

Page 45: ...ed Print Printer performs the actual printing job Post Print The finishing state of printing job The printer puts all systems back into a state ready to start the next job and then enters the Ready state Warm Up Each part of system is activated and the system automatically checks its status and all systems are prepared to accept a job for printing Pre Print As soon as a printing order is inputted ...

Page 46: ...eck Device ITB OPC DEVE cartridge check Heating error check Motion of motor and jam paper empty check Check Feed and exit sensors If paper is detected it is ejected If the paper detection does not clear a jam recovery is carried out and the paper drive unit is instructed to drive for the maximum permitted paper length 2 Heat Control The heater control unit separately manages the temperature of the...

Page 47: ...r changes Heat lamp is off 5 2 4 Pre Print This is the preparation stage before processing a printing job and after receiving a print command from a host 1 Start LSU Run Scanning motor Check motor ready Turn LD on 2 Start BLDC motor Eraser PTL on Run main motor Check lock signal Run developer roll motor Check lock signal 3 Turn High Voltage On Charger on Developer high voltage off 4 Cleaning OPC c...

Page 48: ...each the feed sensor it is an error While transferring the last color to the ITB re feed the paper Checks if the paper reaches the exit sensor in certain time If it reaches too soon or it doesn t reach it is an error Checks that the paper passes the exit sensor or not c Jam check Check reaching time and passing time for the paper reaching and passing the feed and exit sensors If time exceeds a cer...

Page 49: ...5 14 System Outline Samsung Electronics Service Manual MEMO ...

Page 50: ...rews Used in the Printer page 6 6 6 3 3 Opening Covers and replacing Consumable parts page 6 7 Consumable parts removal page 6 7 6 3 4 Replacing the Waste Toner Tank page 6 10 Removing the waste toner tank page 6 10 6 4 Process of Disassembly page 6 12 6 4 1 Top Cover and Front Cover page 6 12 6 4 2 OP Panel Ass y page 6 16 6 4 3 Rear Cover page 6 17 6 4 4 Duplex Cover Ass y and Transfer Roller T2...

Page 51: ...ecautions when handling or storing a PBA Precautions when moving and storing PBA 1 Please keep PBA in a conductive case anti static bag or wrapped in aluminum foil 2 Do not store a PBA where it is exposed to direct sunlight Precautions when replacing PBA 1 Disconnect power connectors first before disconnecting other cables 2 Do not touch any soldered connections connector terminals or other electr...

Page 52: ...ored in memory The amount of each life used can be checked at any time using the control panel When a part is replaced it is necessary to reset the life used that is stored in memory How to initialize a the value of part s life span From the control panel select the following items in order Menu Setup Maintenance Check other Select a desired part Reset COMPONENT REPLACEMENT CYCLE REMARK Toner Cart...

Page 53: ... occur Clean the printer with a soft lint free cloth dipped in a Recommended cleaner Recommended cleaner can be purchased from our service center where available Do not touch the transfer roller when cleaning the inside of the printer Grease and oils from the skin will contaminate the surface and reduce print quality Do not touch transfer roller when cleaning inside of machine If transfer roller g...

Page 54: ... harmful and if swallowed you should con tact a doctor Take care not to spill toner spillages should be cleaned with a vacume cleaner and washed in could water hot water sets the toner Do not touch the developer roller surface as cont amination will reduce print quality Take care not to damage the roller s surface when installing or removing a toner car tridge 5 Disassembly of DEVE drive ass y and...

Page 55: ...6002 000175 3 8 GOLD S4 SCREW TAPTITE 6002 000308 2 6 6 GOLD S5 SCREW TAPTITE 6003 000119 3 8 BLACK S6 SCREW TAPTITE 6003 000152 2 10 GOLD S7 SCREW TAPTITE 6003 000179 3 6 GOLD S8 SCREW TAPTITE 6003 000196 3 10 SILVER S9 SCREW TAPTITE 6003 000266 3 6 GOLD S10 SCREW ASS Y MACH 6006 001193 3 6 GOLD NO DESCRIPTION SEC CODE SPEC S11 SCREW TAPTITE 6003 000269 3 6 GOLD S12 SCREW TAPTITE 6003 001001 3 8 ...

Page 56: ...ge ITB unit and OPC drum Consumable parts removal 1 Pull the side handle to open the DEVE cover and then press down firmly until the toner cartridges are ejected Caution Before opening the exit cover completely open the DEVE cover eject the toner cartridges 2 Removing a toner cartridge K Y M and C Caution Take care not to damage the rollers Keep the toner cartridge on a flat surface Pull Black Ton...

Page 57: ...the cover open button Caution Before opening the exit over completely open the DEVE cover until it is at right angles to the main frame and the toner cartridges are ejected 4 Remove the ITB unit by releasing the ITB lock levers on both sides of the unit Push Exit Cover Deve Cover Lever Lever ITB Unit ...

Page 58: ...ing the handle provided Take care to ensure that the OPC drum surface is not scratched or damaged Do not touch the surface of the drum when lifting the drum handle or when removing the drum Caution The surface of the OPC drum could be damaged if the OPC drum is exposed to direct sunlight for more than 5 minutes OPC Drum ...

Page 59: ...k Removing the waste toner tank 1 Push the top corners of the front cover to release the cover catches 2 Lift the hook at the top of the waste toner tank and gently pull the top edge of the waste tank forward Lift the tank out Caution Be careful not to let toner spill from the waste toner tank PUSH PULL ...

Page 60: ...6 11 Samsung Electronics Disassembly and Reassembly Service Manual 3 Remove the Toner Caps from the side of the tank and fit them to the tank inlets as shown below 4 Fit a new waste toner tank Toner Cap ...

Page 61: ...ctronics Service Manual 6 4 Disassembly Procedure 6 4 1 Top cover and Front cover 1 Remove the cassette 2 Open all of the covers in the following order Duplex cover DEVE cover Exit cover Refer to 6 3 3 Cassette Deve Cover Exit Cover Duplex Cover ...

Page 62: ...6 13 Samsung Electronics Disassembly and Reassembly Service Manual 3 Release 2 screws 4 10 silver 4 Take out the Top Cover as shown below Screw Screw Top Cover ...

Page 63: ...the top corners to release the catches and open the front cover and then remove the waste toner tank Refer to 6 3 4 6 Lift the hook at the top of the waste toner tank and gently pull the top edge of the waste tank forward Lift the tank out Caution Remember to fit the Toner Caps PUSH ...

Page 64: ...he front cover Release 2 screws 3 10 silver located on the top of the front cover 8 Release 2 hooks on the right and the left side with a flat bladed screwdriver and then remove the front cover Take care to disconnect one harness connected to the frame Hook Hook Screw Screw Screw Screw Screw Screw Screw Screw Screw ...

Page 65: ...ut the OP panel ass y Panel PBA 2 Release 7 screws B below 3X8 black from the Panel PBA and remove the panel PBA 3 Release 1 screws C below M2 6X6 gold from the LCD and then take out the LCD A OP Panel Screw 3 X 8 Gold 4EA B Panel PBA Screw 3 X 8 Black 7EA C LCD Screw M2 6 X 6 Gold 1EA Screw Screw Screw Screw Screw Screw Screw Screw Screw Screw Screw Screw B B B B B B B B A A A A A A A A B B C C ...

Page 66: ...er the DEVE cover and the exit cover Refer to 6 3 3 Remove the top cover Refer to 6 4 1 1 1 Remove 10 screws A Top 2 EA 3 10 Silver B Side 3 EA 3 10 Silver C Bottom 3 EA 4 10 Silver D Rear 2 EA 3 10 Silver E NPC If fitted 2EA 3 10 Silver Screw Screw Screw Screw Screw Screw Screw Screw Screw Screw Screw Screw A D C B A D C B E E ...

Page 67: ...6 18 Disassembly and Reassembly Samsung Electronics Service Manual 2 Take out the Rear Cover as shown below ...

Page 68: ... 3 Remove the front cover and top cover Refer to 6 4 1 Remove the rear cover Refer to 6 4 3 1 1 Release 2 hinge screws 3 10 silver one on each side of the duplex unit 2 Remove the duplex cover ass y by pulling it in the direction shown by the arrows in A and B below A Lift up the left side section B Remove the duplex cover ass y by pulling the right side section towards the left Screw Duplex Ass y...

Page 69: ...vice Manual 3 Release 4 hooks on the right and left side with a flat bladed screwdriver and then remove the duplex ass y 4 Remove the transfer roller by turning the bush on each end of the roller Duplex Ass y Hook Hook Hook Hook Duplex Ass y Transfer Roller ...

Page 70: ...g Electronics Disassembly and Reassembly 6 4 5 Fuser 1 Open the DEVE cover Caution Before opening the exit cover completely open the DEVE cover until it is at right angles to the main frame and the toner cartridges are ejected 2 Open the exit cover Pull Push Exit Cover Deve Cover ...

Page 71: ...onics Service Manual 3 Release 5 screws 3 10 silver and then remove the harness cover 4 Remove one harness 5 Remove the fuser by holding both sides of the fuser and then pulling the fuser upwards Harness Cover Screw Screw Screw Screw Screw Harness ...

Page 72: ...cover Refer to 6 4 1 Remove the rear cover Refer to 6 4 3 Remove the duplex cover Refer to 6 4 4 Remove the fuser Refer to 6 4 5 1 Support the Exit Cover and remove the 2 screws 4 10 Silver indicated using a long blade screwdriver from inside the OPC cavity Remove the Exit Cover 2 Remove the exit cover Screw Screw Screw Screw ...

Page 73: ...Samsung Electronics Service Manual 6 4 7 SMPS and Main PBA Before disassembling it Remove the rear cover Refer to 6 4 3 1 Release 5 screws 3 6 machine screw gold from the main PBA bracket Main PBA Bracket Screw Screw Screw Screw Screw ...

Page 74: ...rews from the SMPS Release one screw 3 10 silver from the harness guide A Right side 2EA 3 6 Gold B Left side 1EA 3 10 Silver C Bottom 1EA 4 10 Silver 3 Remove 4 harnesses from the SMPS Screw Screw Screw SMPS A C A Screw B B C A CON4 CON3 CON4 CON3 CON4 CON3 CON1 CON1 Fuse CON2 CON2 ...

Page 75: ...U36 must be transferred to the new PBA USB CN24 CN27 CN28 CN29 CN30 CN31 CN32 CN33 DUPLEX CN26 T2 HOME BLDC1 TH1 FUSER_FAN SMPS MP_EMPT MP SOL FEED CN25 PICK_UP CN23 CLT_FEED CN21 EMPT CN1 CN16 SCF CN12 LSU CN6 OPC KEY CN5 DEVE_DRIVER DEVE_DRIVER CN14 LSU SW CN17 WASTE TONER EXIT CN15 TH3 CN4 PANEL LAN CN7 HVPS CN11 PTL TH4 CN35 SOL_ITB_CLN CN38 BLDC2 CN37 OEM_CONN For Test CN10 ITB CN9 NIC Option...

Page 76: ...user Fan Before disassembling it Remove the top cover Refer to 6 4 1 Remove the rear cover Refer to 6 4 3 Remove the main PBA bracket Refer to 6 4 7 1 Release 3 screws 3 10 silver remove one harness from the main PBA and then take out the fuser fan Fuser Fan Screw Screw Screw ...

Page 77: ...ove the rear cover Refer to 6 4 3 Remove the fuser Refer to 6 4 5 Remove the SMPS Refer to 6 4 7 Remove the fuser fan Refer to 6 4 8 1 Remove all harnesses from the harness guides 3 Look inside the OPC drum cavity and locate the T2 cam Remove the washer using tweezers and then remove the T2 cam Cam Drive Washer Plain ...

Page 78: ...he OPC gear can be found inside the printer after removing the OPC drum unit Take care that the pin is not lost as you remove the gear 5 Remove the motor harness Release 5 screws 3 10 silver and then take out the main drive ass y Gear Drive Pin Drive Washer Plain Screw Screw Screw Harness Screw Screw Caution Please don t lose the Pin Drive ...

Page 79: ...over top cover Refer to 6 4 1 Disassemble the rear cover Refer to 6 4 3 Disassemble the main PBA bracket Refer to 6 4 7 1 Remove one harness from the main PBA 2 Remove one harness and 4 high voltage harnesses from the HVPS USB CN7 HVPS SUPPLY T1 T2 CHARGER CN1 to Deve Driver Harness Red Red Black Black Harness Harness Red Red Black Black Main PBA HVPS ...

Page 80: ...6 31 Samsung Electronics Disassembly and Reassembly Service Manual 3 Remove 5 screws 3 6 machine screw silver and then remove the HVPS Screw Screw Screw Screw Screw ...

Page 81: ...s guide by releasing 5 screws 2 EA 3 6 machine screw gold 1 EA 3 10 silver 1 EA 4 10 silver 2 Remove the ground harness and the harness guide bracket by releasing 3 screws 2 EA 3 6 machine screw gold 1 EA 4 10 silver Harness Guider Main PBA Shield Screw Screw 3 x 6 Gold 4 x 10 Silver 3 x10 Silver Screw Screw 3 x 6 Gold Guide Harness Bracket Screw Screw Screw Screw 4 x 10 Silver 4 x 10 Silver 4 x 1...

Page 82: ...e harness from the DEVE motor 4 Release 5 screws 3 10 silver from the DEVE drive ass y Remove 4 harnesses connected to the DEVE drive PBA and then remove the DEVE drive ass y Motor Harness Screw Screw Screw Screw Screw Harness SUPPLY CN5 CLT_4TH CN9 CLT_3RD CN4 CLT 2ND CN8 CLT 1ST ...

Page 83: ... Refer to 6 4 7 Disassemble the main PBA bracket Refer to 6 4 7 2 1 Release 1 screw 3 10 silver and then take out the DEVE cover open S W 2 Remove all harnesses and 6 screws 3 10 silver and then take out the DEVE drive PBA Deve Cover Open S W Screw Screw Screw Screw Screw Screw Screw SUPPLY CN1 CN2 SOL 2ND CN7 SOL 3RD CN1 BLCD_DEV CN6 SOL_1ST CN3 SOL_4TH CN5 CLT_4TH CN9 CLT_3RD CN4 CLT 2ND CN8 CLT...

Page 84: ...6 35 Samsung Electronics Disassembly and Reassembly Service Manual 3 Remove 4 high voltage terminals Terminal Terminal Terminal Terminal ...

Page 85: ...e rear cover Refer to 6 4 3 Disassemble the main PBA Refer to 6 4 7 Disassemble the main PBA bracket Refer to 6 4 7 Disassemble the DEVE drive motor Refer to 6 4 7 1 Release 4 screws 3 6 gold and then remove the DEVE drive motor 2 Unplug one harness from the DEVE drive PBA and then remove the ITB cleaning solenoid Screw Screw Screw Screw ITB Solenoid ...

Page 86: ...cartridge ITB unit and OPC drum Refer to 6 3 3 Disassemble the front cover and top cover Refer to 6 4 1 Disassemble the LSU cover Refer to 6 4 14 1 Remove 2 screws 3 10 silver and then remove the DEVE open link guide 2 Separate the DEVE cover by pulling it in the direction of the arrow Deve Open Link Screw Screw Deve Open Link Guide Deve Cover ...

Page 87: ...um Refer to 6 3 3 Disassemble the Deve cover Refer to 6 4 15 1 Release 4 screws 4 10 silver Use a short length cross head screwdriver Caution When removing the 4 screws labeled A you will need to use a short screwdriver 2 Release one screw 3 8 yellow Use a short length cross head screwdriver Screw Screw Screw Screw A A A A A A A A Screw LSU Ground LSU Ground LSU Ground ...

Page 88: ...6 39 Samsung Electronics Disassembly and Reassembly Service Manual 3 Separate 2 harnesses and remove the LSU unit Harness Harness ...

Page 89: ... top cover Refer to 6 4 1 Remove the Rear Cover Refer to 6 4 3 Disassemble the Main PBA Bracket Refer to 6 4 7 1 Separate one harness CN1 from the Main PBA and one harness CN2 from the DEVE OEM PBA Remove 6 screws 3 8 black and then take out the DEVE OEM PBA 2 Remove 12 terminals Deve OEM PBA Screw Screw Screw Screw Screw Screw Harness Terminals ...

Page 90: ...r part 2 screws 2 Remove the waste toner ass y by first reaching into the OPC cavity and lightly depressing the waste toner receiver whilst at the same time gently pulling the waste toner motor assy away from the set Once the ass y is released refer to the photograph and remove the ass y Caution It is very likely that waste toner will be spilled when removing the waste toner ass y Screw Screw Scre...

Page 91: ...6 42 Disassembly and Reassembly Samsung Electronics Service Manual 3 Release one screw 3 10 silver and then remove the sensor cover Screw ...

Page 92: ...C drum Refer to 6 3 3 Disassemble the front cover and top cover Refer to 6 4 1 Disassemble the rear cover Refer to 6 4 3 Disassemble the duplex cover Refer to 6 4 4 Disassemble the SMPS main PBA Refer to 6 4 7 1 Release 4 screws 3 10 silver 2 Release the 2 clips located underneath the machine see photograph Pull the MP Ass y upward and remove Screw Screw Screw Screw Snap Fit Snap Fit ...

Page 93: ... 4 3 Disassemble the duplex cover Refer to 6 4 4 Disassemble the SMPS main PBA Refer to 6 4 7 Disassemble the Erase Lamp Refer to 6 4 14 Disassemble the Waster Toner Ass y Refer to 6 4 18 1 Undo 2 screws 3 10 silver and remove the Pick up Solenoid Then remove the plastic circlip which retains the Pick Up Gear and also remove the gear wheel Release the shaft retaining bearing 2 Remove the 3 screws ...

Page 94: ...ss ground plate off the retaining lugs and bend it upward slightly Release the Eraser Lamp harness and paper Empty Sensor harness these pass between the main engine frame and base frame and cannot be removed 4 Remove the ACTUATOR EMPY JC72 00465A sensor arm and then take out the Pick up Ass y by lifting the right hand side and sliding the shaft from the frame Screw Ground Feed Guide Pick Up Plate ...

Page 95: ...llector and OPC drum Refer to 6 3 3 Disassemble the rear cover Refer to 6 4 3 Disassemble the SMPS Refer to 6 4 7 1 Undo 2 screws 3 10 silver and remove the Pick up Solenoid Then remove the plastic circlip which retains the Pick Up Gear and also remove the gear wheel Release the shaft retaining bearing and remove it 2 Remove the paper cassette Use a vacume cleaner to remove any waste toner from th...

Page 96: ...p spring 4 Push the rollers firmly towards the frame if necessary rotate the shaft so that the rubbers do not contact the frame Release the shaft and bush from the end support Note this support is fragile take great care Then slide the shaft back away from the frame to remove it A Shaft retaining bearing A Shaft retaining bearing C Bush and Support C Bush and Support B Spring B Spring ...

Page 97: ...6 48 Disassembly and Reassembly Samsung Electronics Service Manual MEMO ...

Page 98: ...r s guide 7 1 Paper path and Paper jam 7 1 1 Paper path DEV Black DEV Yellow Pick up Roller DEV Magenta DEV Cyan CASSETTE Feeder DUPLEX FuserUnit EXITAss y MPF Path DuplexPath DuplexPath M P F M P T DEV Black DEV Yellow OPC OPC DEV Magenta DEV Cyan SCF SCF FCF ITB ITB Feeder DUPLEX FuserUnit EXITUnit SCF Path Transfer Roller Exit Sensor Paper Pick Up Roller Paper Empty Sensor FCT Paper Empty Senso...

Page 99: ...ched the feed sensor the feed sensor doesn t turn off fails to detect the trailing edge of the paper in a certain time After the leading edge of the paper has passed the feed sensor it doesn t reach the exit sensor in a certain time Exit senor is faulty and does not detect paper 3 Jam2 Jam in exit area After the leading edge of the paper has passed the trailing edge of the paper has not passed the...

Page 100: ...ler and is not fully elected into the exit tray If the duplex solenoid operates paper is fed back into the machine If the leading edge of the paper does not reach the feed sensor in a certain time then Jam Duplex occurs This can be cause by paper being jammed in the duplex path area 5 Jam MPF Paper could not be picked up from the MPF tray After pickup a paper has been fed but it doesn t reach the ...

Page 101: ...hen removing jammed paper always pull it firmly and evenly without any sudden jerks If at all possible remove the paper as a single sheet If the paper tears ensures ALL paper fragments are removed Any fragments left inside the machine will cause it to jam again 7 2 1 Factors that cause paper to jam Too much paper is loaded in the cassette Paper in not loaded correctly in the cassette Duplex cover ...

Page 102: ...ea Jam0 In Tray1 appears on the display 1 Using the handle open the right cover 2 Carefully remove the misfed paper in the direction as shown 3 Close the right cover The printer resumes printing 4 Pull the tray open After you pull it all the way out lift up the front part of the tray slightly to release the tray from the machine 5 Remove the jammed paper by gently pulling it straight out 6 To repl...

Page 103: ...se Tray and the print er detects either there is no paper or the paper is improperly loaded 1 Using the handle open the right cover 2 Remove the jammed paper in the direction shown To avoid the paper tearing pull it out gently and slowly 3 Close the right cover The printer resumes printing 7 2 5 Jam Inside Printer Jam1 If paper is jammed inside the printer Jam Inside Printer appears on the display...

Page 104: ...tch the top cover and open it all the way 4 Carefully take the jammed paper out of the printer 5 Close the top cover and the left cover firmly 6 Open and close the right cover to resume printing CAUTION If the left cover is not completely open the top cover release button will not press Fuser CAUTION Do not touch the fuser it is hot and could cause burns The fuser s operating temperature is 180 C ...

Page 105: ...the paper tearing Close the right cover The printer resumes print ing or 3 If you cannot find the jammed paper or there is any resistance removing the paper go to step 4 4 Using the handle open the left cover completely 5 Press the top cover release button to unlatch the top cover and open it all the way CAUTION If the left cover is not completely open the top cover release button will not press N...

Page 106: ...printer 7 Close the top cover and the left cover firmly Fuser CAUTION Do not touch the fuser it is hot and could cause burns The fuser s operating temperature is 180 C 356 F Take care when removing paper from the machine CAUTION Do not try to close the top cover with the left cover closed This may cause damage to the machine ...

Page 107: ...ull it out gently and slowly 3 Close the right cover The printer resumes printing 4 If you cannot find the jammed paper in the machine open the Tray2 outer jam cover 5 Open the inner cover of Tray 2 6 Pull the jammed paper out in the direction shown To avoid the paper tearing pull it out gently and slowly If there is any resistance and paper does not move immediately when you pull stop pulling and...

Page 108: ... to step 11 8 Pull the optional tray Tray 2 out of the printer 9 If you see the jammed paper remove the paper from the machine by gently pulling it straight out 10 Slide the tray back into the printer and close the two jam covers 11 Open and close the right cover The printer resumes printing ...

Page 109: ...ay 2 Press the Enter button to access the Menu 3 Press the scroll button until you see Demo Page on the bottom line 4 Press the Enter button A demo page showing the printer s features and capabilities prints out 7 3 2 Printing a Configuration Page Print a demo page to make sure that the printer is operating correctly 1 Press the Menu button on the control panel until you see Information on the bot...

Page 110: ... the Remaining Others You can check the level of each item 1 In ready mode press the Menu button on the control panel everal times until you see Setup on the bottom line of the display 2 Press the Enter button to access the menu 3 Press the scroll button until Maintenance displays on the bottom line 4 Press the Enter button 5 When Check Others displays on the bottom line press the Enter button 6 P...

Page 111: ... is on line and ready to print If you press On Line Continue the printer switches to off line Offline The printer is off line and cannot print If you press On Line Continue the printer switches to on line Processing The printer is printing If you want to cancel printing press Cancel Sleeping The printer is in Power Save mode using less power When a print job is received from the computer or if any...

Page 112: ... next option and pressing sends you back to the previous option Press to cancel the current print job In menu mode press to return to ready mode In menu mode press to go back to the upper menu level The printer is off line and cannot print The printer is in Power Save mode When data is received it switches to on line Green Orange Off On Blanking On Blanking Status map The printer is on line and ca...

Page 113: ...uired value 7 Press the Enter button to save your input or selection An asterisk appears next to the selection on the display indicating that it is now the default 8 To exit the menu press the Upper Level button repeatedly or the Cancel button After 60 seconds of inactivity no key has been pressed the printer automatically returns to ready mode NOTE Print settings made from the printer driver over...

Page 114: ...n of the appropriate roller No Roller Defective image Typical defect 1 OPC Drum same position in each page white spot on black image or black spot 2 Charge Roller 43 96 mm black spot 3 Supply Roller 31 41 mm light or dark horizontal image band 4 Developing Roller 35 34 mm horizontal image band 5 ITB T1 same position in each page black spot 6 Transfer Roller T2 75 36 mm ghost 7 Heat Roller 109 9 mm...

Page 115: ...ess Key appears in the display Press the cancel key twice Note There are a number of other test modes Only EDC Test and Panel Tests should be used by service engineers all other functions are for factory use only 7 7 1 1 Functions of the keys on the Panel and how to use them Key Function Description On Line Not used Cancel Not used Menu Menu Display Top Menu of EDC Mode Left Right Arrow Find Menu ...

Page 116: ...Solenoid C Solenoid K Solenoid Feed Clutch T2 Solenoid FCF Solenoid MPF Solenoid SCF Solenoid ITB Solenoid Duplex Solenoid Feed Sensor Exit Sensor FCF Empty Sensor MPF Empty Sensor SCF Empty Sensor SCF Cover Sensor Waste Box Sensor Cover Check Sensor Test LSU Motor Laser Diode Fuser LSU Fuser Test Charger T1 T2 Dev DC Dev AC Test Print Select Tray Select Pattern Print Pattern Print Menu Map Interf...

Page 117: ... by pressing the Upper Level key e Pressing the Upper Level key when the test is already stopped will return to step c above f Pressing the Upper Level key again will return to the EDC main menu Item Description Remarks Main Motor Operates Main Motor Displays Succeed if Motor Lock Signal is Normal Failed otherwise Dev Motor Operates Dev Motor Displays Succeed if Motor Lock Signal is Normal Failed ...

Page 118: ...ff C Clutch Operates Developer Clutch Displays clutch status On or Off K Clutch Operates Black Developer Clutch Displays clutch status On or Off Y Solenoid Operates Yellow Developer Solenoid Displays solenoid status On or Off M Solenoid Operates Magenta Developer Solenoid Displays solenoid status On or Off C Solenoid Operates Cyan Developer Solenoid Displays solenoid status On or Off K Solenoid Op...

Page 119: ...is displayed when paper is not detected Exit Exit Sensor Status With Paper is displayed when Paper is detected Without paper is displayed when paper is not detected FCF Empty FCF Empty Sensor status With Paper is displayed when Paper is detected Without paper is displayed when paper is not detected MPF Empty MPF Empty Sensor Status With Paper is displayed when Paper is detected Without paper is di...

Page 120: ...t may take over 15 seconds until the Succeed or Failed message is displayed For safety after printing a test pattern if you need to return to EDC mode turn the printer off and then re enter EDC Item Description Remarks LSU Motor Operates LSU Motor The LSU motor must come into lock within 6 seconds After 7 secs the status is displayed either Succeed if lock is successful within the time limit Faile...

Page 121: ...y until Select Tray is displayed d Press the Enter key to select this function e Press the or key until required tray is displayed and then press the Enter Key f Press the Upper Level key g Press the or key until Select Pattern is displayed h Press the Enter key to select this function i Press the or key until required pattern is displayed and then press the Enter Key j Press the Upper Level key k...

Page 122: ...the table below e Pressing the Upper Level key when the test is already stopped will return to step c above f Pressing the Upper Level key again will return to the EDC main menu Item Description Lower Menu Input LCD Indication Voltage Charger Supply Voltage to the Charger Duty 50 1262V Duty 50 1224V 1300V Duty 80 2037V Duty 80 1976V 2098V T1 Supply Voltage to T1 Duty 50 1174V Duty 50 1139V 1209V D...

Page 123: ...7 26 Alignment Adjustments Samsung Electronics Service Manual MEMO ...

Page 124: ...tempting to repair the printer first obtain a detailed description of the problem from the customer OP Panel ON Refer to 8 1 1 Basic Check List Print Printing guality is normal END Ready or Power Save Indicate Error Message Power On No Power LCD Module Main PBA Refer to 8 5 Error Message Refer to 8 2 Solution of Image Problem ...

Page 125: ...rd error message Refer to section 8 4 or 8 5 Page 8 14 or 8 18 3 Check the Paper Path Is there a Paper Jam Remove any paper fragments caught in the paper path Refer to section 8 3 Page 8 10 Paper Jam occurs repeatedly at a specific point in the Paper Path Dismantle the machine and carefully inspect the region where the jam occurs Especially check if paper fragments are caught in the Fuser 4 Print ...

Page 126: ...hat the temperature and humidity of the surroundings are within specification If necessary move the printer 3 Ensure that the printer is position away from any air conditioning or other heating or cooling equipment Also ensure that is not positioned in a direct draft from any air conditioning fan or open window If necessary move the printer 4 Ensure the printer is not positioned in direct sunlight...

Page 127: ... section 7 4 page 7 13 The printer calculates the working time and quantity of output for each component and saves this information 1 The Working time for each component OPC Drum Toner Cartridge Image Transfer Belt Fuser Unit is measured every 30 seconds when the Transport Motor and Fusing Contact Motor are active 2 In order to calculate the number of images printed 1 is added to the appropriate c...

Page 128: ...ck and clean the ITB contacts Re seat the ITB Unit Replace ITB Unit Check the connectors on the LSU Unit and main PWA are properly inserted Replace the LSU Unit cables or MAIN PWA as required Check all HV contacts and cables Replace the HVPS No Image Cause Sequence of Treatment OPC Drum BIAS contacts dirty or not mak ing good contact Charge Voltage of the OPC Drum is unstable Clean Drum contacts R...

Page 129: ...l colors Replace the appropriate Toner Cartridge Ensure TDC process is enabled If problem persists replace the OPC Drum Replace the appropriate Toner Cartridge Ensure TDC process is enabled If problem persists replace the OPC Drum Foggy back ground Cause Sequence of Treatment Poor toner transfer to OPC one color only Poor toner transfer to OPC al colors Poor toner transfer to ITB Unit ITB Bias vol...

Page 130: ...e OPC Afterimage on the ITB Unit Toner Cartridge is installed incorrectly Individual color layers offset Replace the OPC Drum Re install or replace the ITB Unit Re set the Toner Cartridge Replace ITB Unit Offset Image Cause Sequence of Treatment Problem transferring intermediate images to the ITB Contamination of the Paper Path Problem transferring intermediate image onto paper Check and clean ITB...

Page 131: ...nce of Treatment Uneven contact between OPC and ITB or between ITB and T2 roller Uneven color may occur when a toner cartridge has just been installed Re install or replace the ITB Unit Check T2 roller solenoid and cam operation Make test printing a couple of times Uneven Color Density Cause Sequence of Treatment Moisture or wet paper Creases in paper Fault occurs in Duplex Printing only Ensure pa...

Page 132: ... Toner cartridge Line repeats every 1 2 mm Replace the LSU Unit Random line spacing Replace the OPC Drum Lateral Lines Cause Sequence of Treatment Contamination or damage to rollers Measure distance between lines Laser Unit damaged Damage or contemination of OPC drum Refer to Table of Circumferences of Rollers Mark in same position on every page Replace ITB Unit Replace OPC Drum Mark every 75 36 m...

Page 133: ...Error 8 3 Paper Feeding Problems and Troubleshooting Pick up Roller Feed Sensor Paper Empty Sensor Check and Cause Solution 1 Check the Feed Solenoid or Pick Up using EDS Mode 2 Check that the Separator Pad has not become loose 3 Check if the surface of the Pick Up Roller is clean 4 Check the Feed Sensor is not sticking by using the EDC Mode When JAM 0 occurs even though the paper feeds into the p...

Page 134: ...ective if Jam 2 occurs after the paper is completely fed out of the printer This can happen if the actuator sticks open or is slow to close 2 Paper is rolled into the Fuser Accordion folding occurs repeatedly Fuser temperature is too high due to failure or other abnormal conditions If the Heat Roller or Pressure Roller is conteminated hard because of Toner 3 If there are Accordion paper folds insi...

Page 135: ...t 8 3 6 Multi Feeding Symptoms Multiple sheets of paper are picked up and fed simultaneously Check and Cause Solution 1 Check the On Off operation of the pick up Solenoid using the EDC Mode 2 Check the Friction Pad surface for dirt or other conta mination 3 Check that the paper is not creased folded or curved 4 Check that the Paper Guide in the cassette is properly adjusted and that paper is poper...

Page 136: ... Background Hot off set 2 If Accordion folding occurs between the Fuser and the Exit Unit repeatedly 3 If the Bearing Fuser or Gear Fuser is damaged or melted by excessive heat 1 Replace the Fuser 2 Check if the Paper Guide Ribs on the Exit Unit are damaged or contaminated and check the condition and operation of the Exit Roller 3 Check the SMPS and Main PBA if the Bearing Gear is melted ...

Page 137: ...ostat is open circuit otherwise replace heat lamps as required 2 Replace broken thermistor or cables as necessary 3 Replace the main PBA id the overheat circuit is faulty 4 Replace the Fuser 8 4 2 LSU Error Symptoms Engine LSU Error displayed on the LCD Panel Check and Cause Solution 1 Check the LSU Connector 2 Check the LSU Motor 3 Check the HSYNC signal 4 Check the Deve Cover Micro switch 1 Repl...

Page 138: ... empty Check and Cause Solution 1 Check for a broken or distorted paper empty sensor actuator Check that the actuator is not jammed 2 Check the sensor connectors and cable harness Ensure that a signal reaches the main PBA 3 Use the EDC mode to test the actuator 1 Replace the Paper Empty Sensor actuator 2 Replace the harness 3 Replace the Sensor Board 8 4 6 Cover Open Symptoms LCD displays Cover Op...

Page 139: ... when printing Jam 0 is displayed Check and Cause Solution 1 Check if the Motor Harness or Motor PCB is broken or not 2 Test the Motor using EDC Mode 1 Replace the Motor or Motor Harness 2 Replace the Main PBA 8 4 9 No Power Symptoms Power is not supplied to the set or the LCD display is not on Check and Cause Solution 1 Check the power supply input and DC voltage output from the SMPS Check the fu...

Page 140: ...LCD Panel Check and Cause Solution 1 Low Toner is displayed when under 500page or less toner remains in any of the cartridges 2 Check the condition of the contacts on the DEVE PBA 1 Using the keypad check which toner is empty and replace the Toner Cartridge Replace the Toner Joint PBA Replace the Main PBA 8 4 12 Replace Toner CART Symptoms LCD displays Ready Replace CART Check and Cause Solution 1...

Page 141: ... check if the Deve Motor Harness is assembled correctly 3 Open the Main PBA Cover and check if the Harness 20pins connected to the Deve Drive PBA is assembled correctly Replace the Harness if there are damaged or badly fitted parts 4 Check the Power Supply to the Main PBA Replace the SMPS if the Power Supply is out of specification Replace the Main PBA if the Power Supply from the SMPS is OK Engin...

Page 142: ...mode to test the HSYNC signal and LSU Motor 2 Check the Harness connected to the Engine Controller and LSU Refit the harness or replace it if it is damaged 3 Replace the LSU Main Motor Error The Main Motor that drives the OPC ITB and Pick Up is faulty 1 Open the Deve Cover and Top Cover and then check the OPC Unit and ITB Unit Re install if they are not correctly fitted or are damaged 2 Open the R...

Page 143: ...er Error This is caused by a badly fitted or unlocked ITB unit or a faulty ITB Home Sensor 1 Open Top Cover and then check that the ITB unit properly fitted and locked in position Remove replace and re lock the ITB unit If the same fault recurs regularly replace the ITB unit 2 Check the condition of the ITB Harness especially if replacing the ITB does not resolve the problem Refit or replace the h...

Page 144: ...curs Clean or Re assemble 4 Replace the OEM PBA HVPS and Main PBA in order if the same error recurs Invalid NEW Toner Color This occurs when the Fusible Resistor in the Toner Cartridge does not become open circuit within regulation time 1 Clean the 3 contact points on the Toner Cartridge and then re install 2 Replace the Toner Cartridge if the same error recurs 3 Replace the OEM PBA HVPS and Main ...

Page 145: ...or Exit Ass y if it is not normal 3 Check the condition and operation of the Fuser Rollers Jam Inside Printer Paper is caught inside printer 1 Open the Duplex Cover and then remove the paper 2 Check the Feed sensor actuator Replace the Feed Sensor if it is damaged or distorted Load Manual Press Cont Key This is only displayed when printing in Manual Feed mode and the MPF tray is empty Load a sheet...

Page 146: ...e button to continue printing Replace the Toner Cartridge when the image quality becomes unacceptable You can select if this message will be displayed on the LCD Pane or not Press Cont Key Replace Drum The OPC drum is coming to the end of its usable life and will need replacing soon Press the On Line Continue button to continue printing Replace the OPC Drum when the image quality becomes unaccepta...

Page 147: ...he indicated Color Toner Cartridge To temporarily improve printing for a short time remove the indicated toner cartridge and rock it gently from side to side for a short time before replacing it Replace Drum Cartridge This occurs when the OPC drum is not correctly installed 1 Check that the OPC Unit is installed and locked correctly 2 Check the OPC OEM Harness to the Main PBA Refit or replace the ...

Page 148: ... 3 Replace the Toner Cartridge 4 Replace the OEM PBA HVPS and Main PBA in order Tray2 Error This occurs when Tray2 is not installed correctly Turn the printer off and re install Tray2 Tray2 Jam Cover Open The cover on Tray 2 is open Check and ensure that the cover of Tray2 is closed properly Waste Toner Full Not Install Waste Toner Tank is full or not installed 1 Check and replace the Waste Toner ...

Page 149: ...8 26 Troubleshooting Samsung Electronics Service Manual MEMO ...

Page 150: ...nts and electronic parts This format is controlled by individual Samsung Divisions and is used on specific products typically for mechanical parts Type 2 format part numbers fall into 2 categories Assemblies consisting of 2 or more parts Also used for Service manuals user guides and diagrams Ass y parts and A S privately used Parts can be distinguished by the part Code and Description They are alw...

Page 151: ... Fuser Ass y Exploded View 9 10 Cassette Ass y Exploded View 9 11 SCF Cassette Ass y Exploded View 9 12 Frame SCF Ass y Exploded View 9 13 Main Frame Exploded View 9 14 Front Frame Exploded View 9 15 Rear Frame Exploded View 9 16 Base Frame Exploded View 9 17 MP Ass y Exploded View 9 18 Pick up Ass y Exploded View 9 19 FeederAss y Exploded View 9 20 Guide Paper Exploded View 9 21 ITB Cam Ass y Exp...

Page 152: ... 1 45 20 3 1 2 6 5 4 15 35 57 57 1 14 13 26 22 38 22 39 8 21 9 33 25 30 11 16 2 16 3 16 1 S8 19 1 S9 19 41 37 58 48 44 19 2 16 23 40 16 4 28 31 29 32 43 1 43 2 10 43 42 24 58 56 1 56 2 S8 56 56 3 7 52 49 49 3 49 3 49 1 49 5 49 2 49 4 18 51 ...

Page 153: ...9 2 Cover Front Exploded View 0 12 12 5 12 4 12 6 12 2 12 3 12 1 6 9 2 2 17 5 3 S5 S5 S5 S4 S3 S3 S8 S3 7 7 11 11 10 4 S8 5 3 S8 ...

Page 154: ...9 3 Cover Top Exploded View 6 5 3 0 2 9 1 7 S15 8 S15 4 ...

Page 155: ...9 4 Cover Deve Exploded View 4 0 2 6 12 S14 S14 3 7 9 1 10 5 11 8 ...

Page 156: ...s y Exploded View 0 5 6 2 4 1 7 10 13 3 S8 S8 11 10 11 S8 11 11 8 11 9 11 21 11 1 11 4 11 S8 S8 11 13 11 14 11 15 11 16 11 19 11 20 11 S8 11 20 1 11 20 2 11 18 11 12 11 11 11 17 11 22 11 5 11 2 11 3 11 7 11 6 S14 ...

Page 157: ...1 1 20 1 1 1 1 15 1 1 16 1 1 16 1 1 31 1 1 32 1 1 14 1 1 15 1 1 24 1 1 25 1 1 23 1 1 12 1 1 27 1 1 12 5 1 1 13 0 1 2 1 1 12 7 1 1 12 4 1 1 12 3 1 1 12 4 1 1 12 1 1 1 12 2 1 1 18 1 1 17 1 1 30 1 1 18 1 1 30 1 1 17 S8 S5 S8 S8 S8 1 1 12 8 1 1 12 6 1 10 1 11 1 9 S8 S8 1 2 1 8 1 6 1 5 1 4 1 13 1 13 2 1 13 1 1 13 2 1 13 5 1 13 3 1 13 6 1 13 7 1 13 4 1 3 1 7 1 12 1 12 ...

Page 158: ...9 7 Deve Drive Ass y Exploded View 0 6 7 8 12 13 17 16 15 14 11 10 5 4 3 1 9 18 19 20 2 ...

Page 159: ...9 8 Main Drive Ass y Exploded View 0 38 33 22 33 19 30 27 36 39 12 24 23 37 3 25 16 32 6 S11 7 2 35 S11 1 S17 29 34 4 12 18 13 15 17 12 11 21 26 28 5 8 35 20 14 10 37 9 31 ...

Page 160: ...0 19 18 17 32 8 6 21 1 3 4 5 7 20 S2 S2 S2 S2 S2 S2 S2 12 15 14 28 25 24 22 5 2 23 28 29 31 10 11 12 13 S3 S3 S2 S3 31 27 33 S2 S2 16 26 30 9 9 Fuser Ass y Exploded View ...

Page 161: ...8 0 3 15 9 7 4 1 2 12 S8 14 5 11 13 10 6 9 10 Cassette Ass y Exploded View ...

Page 162: ...14 15 9 15 0 3 23 7 11 4 10 6 1 2 12 S8 S8 16 5 22 13 8 20 21 17 19 9 11 SCF Cassette Ass y Exploded View ...

Page 163: ...9 19 17 16 8 14 2 1 2 5 2 6 2 7 2 3 2 4 2 2 2 S9 1 3 3 8 3 19 3 15 3 9 3 4 3 1 3 2 3 13 3 13 3 13 3 16 3 10 3 11 3 4 3 5 3 6 3 7 3 17 3 12 3 20 3 3 3 14 3 18 3 13 3 4 S8 S8 S8 S8 1 6 1 2 1 4 1 2 1 1 1 7 1 5 1 S9 1 8 1 9 1 3 9 12 Frame SCF Ass y Exploded View ...

Page 164: ... 1 5 5 5 3 1 1 18 1 3 1 17 1 10 1 21 1 14 1 15 1 20 1 11 1 4 1 8 1 3 1 5 1 13 1 19 1 16 1 12 1 7 1 6 1 9 1 2 1 1 2 1 1 3 S1 1 1 4 1 1 1 1 1 1 1 5 13 17 3 17 7 17 8 17 9 17 4 17 1 17 2 17 5 17 16 17 6 20 32 30 36 S5 26 14 18 27 25 12 2 9 13 Main Frame Exploded View ...

Page 165: ...11 14 6 37 33 4 31 10 12 25 26 8 4 30 36 3 22 17 1 18 21 13 19 7 9 27 37 39 24 2 2 1 2 2 3 3 3 2 3 4 3 6 3 7 3 5 3 1 2 3 1 1 1 2 1 4 1 3 16 29 28 23 34 15 9 14 Front Frame Exploded View ...

Page 166: ...6A S8 S8 S8 1 28 25 10 3 34 23 24 12 12 1 15 31 37 18 9 S8 S8 11 32 20 26 29 S5 S8 S8 35 22 S5 6 36A 2 19 4 34 36 12 1 S9 30 5 38 33 14 16 7 13 1 S8 S8 17 8 36A 36B 36B 38 1 9 15 Rear Frame Exploded View ...

Page 167: ...16 15 14 23 13 6 12 8 3 7 4 5 19 10 9 20 18 22 17 1 2 24 25 S14 S14 26 11 21 S14 S14 S14 S14 S14 S14 S14 S8 S8 S8 S7 S8 9 16 Base Frame Exploded View ...

Page 168: ...15 19 20 0 13 4 24 17 17 18 25 1 18 11 3 7 23 1 S5 6 2 S9 9 14 22 10 21 8 5 16 12 9 17 MP Ass y Exploded View ...

Page 169: ...7 1 5 12 11 2 0 8 3 6 4 10 9 9 18 Pick up Ass y Exploded View 3 13 ...

Page 170: ...1 0 5 S8 5 6 7 8 8 9 10 12 11 1 1 22 S8 S8 23 1 2 14 3 1 25 8 11 15 13 4 3 2 2 1 8 8 19 21 16 17 18 11 5 5 5 20 1 3 2 3 24 2 2 3 5 3 4 3 2 3 3 9 19 Feeder Ass y Exploded View ...

Page 171: ...4 0 6 S9 3 5 5 7 1 2 9 20 Guide Paper T2 Ass y Exploded View ...

Page 172: ...S18 9 0 8 S8 7 6 5 10 1 2 3 12 13 S8 11 4 9 21 ITB Cam Ass y Exploded View ...

Page 173: ...2 S8 1 0 3 S5 4 9 22 Dummy Fuser Base Ass y Exploded View ...

Page 174: ...C DC 50W 210 230VAC S7035 SA 9 1 19 1 JC70 00415A IPR BRKT SMPS CLP 500 SECC T1 0 S7030 SA 9 1 19 2 JC63 00236A SHEET SMPS CLP 500 PVC T 0 5 W174 0 L259 S0002 SA 9 1 20 JC44 00075A HVPS BB_PLUS 24V 21 6V 26 4V MAX 5KV S7027 SA 9 1 21 JC59 00020C UNIT LSU BIGBANG PLUS CLP 510 600DPI L7045 SA 9 1 22 6031 001255 WASHER PLAIN NYLON CUTTING ID5 OD9 T0 5 SA 9 1 23 6044 000125 RING E ID4 OD9 T0 6 PASS ST...

Page 175: ... 9 2 7 JC72 00766A PMO TIE STOPPER SCX 5100 NYLON66 NTR K4094 SA 9 2 9 JC63 00546A COVER M FRONT INNER CLP 510 HIPS H Z2580 SA 9 2 10 JC72 01194A PMO COVER FRONT OPEN CLP 500G ABS L GRAY SNA 9 2 11 JC72 01195A PMO COVER FRONT PUSH CLP 500 POM WHITE P8003 SA 9 2 12 1 JC63 00547A COVER M_OPE PANEL CLP 510 HIPS HB L6018 SA 9 2 12 2 JC72 01197B PMO OPE KEY 1 CLP 510 ABS G71312 HB SNA 9 2 12 5 JC72 012...

Page 176: ...ROLLER EXIT F_UP ML 5000A TEFLON WHI E4091 SA 9 5 11 19 JC70 00375A IPR GROUND EXIT PLATE CLP 500 SUS304 3 4 P5050 SNA 9 5 11 20 JC97 01410A MEA UNIT TERMINAL L ML 5000A SAMSUNG KOR K3637 SA 9 5 11 20 1 JC61 70930A SPRING ETC HV SMALL ML 5000A D4 5 L4 Z4198 SA 9 5 11 20 2 JC70 40912A ICT SHAFT HV LARGE ML 5000A SWCH18A S4027 SA 9 5 11 22 JC61 00974A BRACKET P EXIT UPPER CLP 510 SECC T0 5 SNA 9 5 1...

Page 177: ... HEIGHT MP SCX 5312F PC T0 5 W L0008 SNA 9 6 1 1 20 JC70 00369A IPR BRKT GUIDE DUPLEX CLP 500 SECC T0 G2103 SNA 9 6 1 1 21 JC70 00364A IPR BRKT GROUND B CLP 500 SUS304 T0 2 K4288 SNA 9 6 1 1 22 JC70 00363A IPR BRKT GROUND A CLP 500 SUS304 T0 2 K4287 SNA 9 6 1 1 23 JC70 00366A IPR BRKT GROUND D CLP 500 C5210P T0 3 K4290 SNA 9 6 1 1 24 JC70 00365A IPR BRKT GROUND C CLP 500 SUS304 T0 3 K4289 SNA 9 6 ...

Page 178: ...G0356 SA 9 8 17 JC66 00480A GEAR RDCN Z110 Z37 CLP 500 POM M90 44 M0 G0402 SA 9 8 18 JC66 00481A GEAR RDCN Z62 Z48 CLP 500 POM M90 44 M0 G0403 SA 9 8 19 JC66 00482A GEAR SWING DRIVE CLP 500 POM M90 44 M0 8 D4050 SA 9 8 20 JC66 00483A GEAR T2 DRIVE_Z25 CLP 500 POM M90 44 M0 D4051 SA 9 8 21 JC66 00740A SHAFT FEED DRIVE CLP 510 SUM24L L62 0 D8 SNA 9 8 22 JC66 00547A SHAFT FUSER DRIVE CLP 500 SUM24L L...

Page 179: ... 00407A LABEL R HV FUSER ML 6060 PVC 220V L0018 SNA 9 9 30 JC72 01208A PMO GUIDE INPUT CLP 500 PET GF30 BLACK G0040 SNA 9 9 31 JC75 00165A MEC DUMMY THERMISTOR CLP 500 PPS SUS30 SNA 9 9 33 JC72 01208A PMO GUIDE INPUT CLP 500 PET GF30 BLACK G0040 SNA 9 10 0 JC97 01753A MEA CASSETTE CLP 500 KOREA CASSETTE K3657 SA 9 10 1 JC72 01069A PMO FRAME CASSETTE CLP 500 HIPS LIGHT GR C4024 SNA 9 10 2 JC72 0106...

Page 180: ...VR K3739 SA 9 13 3 6 JC72 01146A PMO COVER OEM UPPER CLP 500 HIPS BLACK Z2643 SNA 9 13 3 7 JC39 00229A CBF HARNESS OPC_FUSE SCX 5312F WIRE HARN H0023 SA 9 13 5 JC97 02038A MEA UNIT BRKT HVPS CLP 510 SEC EXPORT SNA 9 13 5 1 JC61 00975A GUIDE M HVPS BOARD CLP 510 HIPS HB SNA 9 13 5 2 JC70 00386A IPR BRKT HVPS LOWER CLP 500 SECC T1 0 S7029 SNA 9 13 5 3 6502 000132 CABLE CLAMP DAWS 1NE ID11 L21 0 NTR ...

Page 181: ... 9 14 4 6044 000001 RING CS ID3 OD3 T0 25 BLACK SUS304 D4088 SNA 9 14 6 JC61 00709A PLATE GUIDE T2 FRONT CLP 500 SECC T1 0 P5141 SNA 9 14 7 JC61 00756A BRACKET DUMMY LSU F CLP 500 SECC T1 2 L7001 SNA 9 14 3 1 JC61 00814A HOUSING M WASTE TONER ITB CLP 500 HIPS H H6037 SA 9 14 3 2 JC72 01294A SPONGE DUCT TONER OPC CLP 500 PE FOAM PE D0016 SNA 9 14 3 3 JC72 01222A PMO CAP SHUTTER ITB CLP 500 HIPS BLA...

Page 182: ...2 SA 9 15 14 JC66 00485A GEAR T2 RDCN_Z32 Z23 CLP 500 POM M90 44 G0433 SA 9 15 15 JC66 00667A LEVER ITB LOCK REAR CLP 500 PC ABS T3 0 L4033 SA 9 15 16 JC70 00381A IPR BRKT DUMMY LSU R MLC 500 SECC T1 6 L7019 SNA 9 15 17 JC70 00384A IPR BRKT GUIDE HVPS F CLP 500 SECC T1 G2104 SNA 9 15 18 JC70 00387A IPR BRKT LOCK ITB CLP 500 SECC T1 6 K3280 SNA 9 15 19 JC70 00407A IPR BRKT EXIT HINGE R CLP 500 SECC...

Page 183: ...16 26 6031 000120 WASHER E T M4 ID4 3 OD8 5 T0 45 ZPC YEL SNA 9 17 0 JC96 02774A ELA UNIT MP CLP 500 SEC EXPORT K3155 SA 9 17 1 6044 000125 RING E ID4 OD9 T0 6 PASS STSC T2001 SA 9 17 2 JC33 00006B SOLENOID MP CLP 500 DC24V 82 0 Ù 27 8 S8014 SA 9 17 3 JC61 00003A SPRING ETC CAM MP ML 6100 SUS304 WPB 0 Z4145 SA 9 17 4 JC61 00482A SPRING ETC PICKUP SCX 5100 SUS304 WPB PI P2913 SA 9 17 5 JC61 00483A ...

Page 184: ...ID4 OD9 T0 6 PASS STSC T2001 SA 9 19 6 JC72 01105A PMO BUSHING FEED MID CLP 500 POM WHITE F6160 SNA 9 19 7 JC70 00376A IPR BRKT FEED MID CLP 500 SECC T0 8 F6091 SNA 9 19 8 6031 000021 WASHER PLAIN ID6 0 OD16 0 T0 5 BLK POL W0031 SNA 9 19 9 JC72 01113A PMO ROLLER FEED MID CLP 500 POM GF25 UR F6193 SA 9 19 10 JC66 00618A SHAFT FEED MID CLP 500 SUM24L L37 Õ6 0 S S0078 NA 9 19 11 JC72 41364A PMO BUSHI...

Page 185: ...H1250 SA 0105 000101 PAPER ART 75G W216 WHITE XEROX 3R2047 SNA 0105 001032 PAPER ART W210 WHITE HANSOL L297 SNA 0201 001162 ADHESIVE CYA LOCTITE403 NTR 1250 20G SNA 0201 001183 ADHESIVE AA ARON ALPHA 202F NTR 100 20G SNA 0202 000008 SOLDER WIRE HI FLO 3 0 D3 0 63SN 37PB SNA 0202 000108 SOLDER CREAM RMA 20 21L 20 38 62 8SS SNA 0202 000137 SOLDER WIRE FLUX KR 19 RMA SF D0 7 60S SNA 0202 001025 FLUX ...

Page 186: ...233 IC RESET XC61F SOT 23 3P PLASTIC 0 7 1 SNA 1205 002339 IC CLOCK GENERATOR CY25811SC SOIC 8P 150 SA 1404 001141 THERMISTOR NTC 5 6Kohm 5 3200K 2 1mW C SNA 2001 000008 R CARBON 15KOHM 5 1 8W AA TP 1 8X3 2MM SA 2001 000047 R CARBON 2 2KOHM 5 1 4W AA TP 2 4X6 4MM SA 2001 000058 R CARBON 5 6Kohm 5 1 4W AA TP 2 4x6 4mm SNA 2001 000111 R CARBON 150OHM 5 1 4W AA TP 2 4X6 4MM SA 2001 000281 R CARBON 10...

Page 187: ...3 000041 C CER CHIP 0 01NF 0 25PF 50V C0G TP 1608 SA 2203 000189 C CER CHIP 100nF 80 20 25V Y5V TP 1608 SA 2203 000192 C CER CHIP 100nF 80 20 50V Y5V TP 2012 SA 2203 000236 C CER CHIP 0 1NF 5 50V C0G TP 1608 SA 2203 000257 C CER CHIP 10nF 10 50V X7R TP 1608 SA 2203 000426 C CER CHIP 0 018NF 5 50V C0G TP 1608 SA 2203 000440 C CER CHIP 1nF 10 50V X7R TP 1608 SA 2203 000476 C CER CHIP 1000nF 80 20 16...

Page 188: ...485 SCREW MACHINE PH M2 6 L4 ZPC YEL SWRC SNA 6001 001068 SCREW MACHINE PH M2 L16 BLK SWRCH18A SNA 6002 000175 SCREW TAPPING PWH 2 M3 L8 ZPC YEL SM2 SNA 6002 000308 SCREW TAPTITE PH B M2 6 L6 ZPC YEL SW SA 6003 000115 SCREW TAPTITE BH B M3 L6 ZPC BLK SWRC SA 6003 000152 SCREW TAPTITE PH B M2 L10 ZPC YEL SWR SA 6003 000196 SCREW TAPTITE PWH B M3 L10 NI PLT SWRC SA 6003 000264 SCREW TAPTITE PWH B M3...

Page 189: ...NES SA JC39 00380A CBF HARNESS PTL_THER CLP 510 WIRE HARNES SA JC39 00382A CBF HARNESS ITB D_ITB CLP 510 WIRE HARNE SNA JC39 00383A CBF HARNESS DEVE OEM CLP 510 WIRE HARNES SA JC39 00385A CBF HARNESS SUPPLY CLP 510 WIRE HARNESS SA JC39 00388A CBF SIGNAL DEVE DRI CLP 510 12PIN FFC 18 SA JC39 40511A CBF HARNESS ML 80 JUMPER AWG22 52mm SILV SA JC41 00133A PCB SENSOR SCX 5100 FR 1 1L V1 0 1 6T 11 SNA ...

Page 190: ...6A SEAL SHUTTER 2 CLP 500 URETHAN FOAM T4 SNA JC62 00107A SEAL COLLAR PORON CLP 500 PORON T2 0 SNA JC62 00108A SEAL BRACKET SIDE CLP 500 URETHANE FOAM SNA JC62 00115A SEAL BRACKET UPPER CLP 500 EPDM T2 5 W SNA JC62 00116A SEAL DUMMY HOLE UPPER CLP 500 PE FOAM SNA JC62 00117A SEAL DUMMY COVER CLP 500 PPMB T1 0 W22 SNA JC62 00118A SEAL FELT BLACK F CLP 500 TEFLON FELT SNA JC62 00122A SEAL SIDE BLOCK...

Page 191: ...0502A GEAR DEVE IDEL_Z16 CLP 500 POM M0 6 Z16 SNA JC66 00503A GEAR DEVE IDEL_Z23 CLP 500 POM M0 6 Z23 SNA JC66 00504A GEAR DEVE RECY_Z16 CLP 500 POM M0 6 Z16 SNA JC66 00505A GEAR ITB AUGER_Z28 CLP 500 POM M0 5 Z28 SNA JC66 00506A GEAR ITB CLEAN_Z57 CLP 500 POM M0 5 Z57 SNA JC66 00507A GEAR ITB DRIVE_Z60 CLP 500 POM M0 5 Z60 SNA JC66 00508A GEAR ITB IDLE 1_Z28 CLP 500 POM M0 5 Z28 SNA JC66 00509A G...

Page 192: ... HV CLP 500 SUS304 C SNA JC70 00354A IPR ITB WASHER SPRING CLP 500 SUS304 CSP SNA JC70 00391A IPR DEV BRKT DOCTOR CLP 500 SECC T1 2 SNA JC70 00392A IPR DEV BRKT DOCTOR BK CLP 500 SECC T1 SNA JC70 00395A IPR DEV PLATE BIAS CLP 500 C5210 T0 3 SNA JC70 00396A IPR DEV PLATE FUSERBLE CLP 500 C5201 T SNA JC70 00398A IPR DEV PLATE BIAS DR BK CLP 500 SUS304 SNA JC70 00399A IPR DEV PLATE BIAS DR C CLP 500 ...

Page 193: ...V COVER CYAN CLP 500 HIPS BLACK SNA JC72 01121A PMO DEV COVER MAGENTA CLP 500 HIPS BLACK SNA JC72 01122A PMO DEV COVER YELLOW CLP 500 HIPS BLACK SNA JC72 01123A PMO DEV FRAME CLP 500 ABS PC20 BLACK SNA JC72 01124A PMO DEV FRAME BK CLP 500 ABS PC20 BLACK SNA JC72 01125A PMO DEV GAP RING CLP 500 POM WHITE PI14 SNA JC72 01126A PMO DEV GUIDE SUPPLY CLP 500 PC GF20 BL SNA JC72 01127A PMO DEV GUIDE SUPP...

Page 194: ...SUB GINKGO_ITB CLP 500 SEC KOREA GIN SNA JC92 01632A PBA SUB DRIVER_BB_PLUS CLP 510 SEC KOREA M2011 SA JC96 03213A ELA HOU MAIN LINE CLP 510 SEC EXPORT SNA JC96 03274A ELA HOU ITB_DRAW CLP 510 KOREA KOREA ITB SNA JC97 01819A MEA UNIT SUS BLADE BLACK CLP 500 SECC SNA JC97 01820A MEA UNIT SUS BLADE COLOR CLP 500 SECC SNA JC97 01821A MEA UNIT WASTE TONER TANK CLP 500 SEC EX T2130 SA JC97 01828A MEA U...

Page 195: ...10 10 10 1 Samsung Electronics Block Diagram Service Manual 10 Block Diagram ...

Page 196: ...Left cover Developer_1st Developer_2nd Developer_3rd Developer_4th Deve OEM KEY CN1 CN2 V1 2 3 V4 5 6 V7 8 9 V10 11 12 HVPS CN1 1 2 T1 T2 Charger Supply T1 Roller T2 Roller Charger Roller Developer_1st Developer_2nd Developer_3rd Developer_4th Deve Drive CN1 CN6 CN2 CN7 CN3 CN8 CN4 CN9 CN5 V1 CN11 TAB1 V2 V3 V4 1 2 3 4 5 6 7 8 9 a 11 12a 10 15 16 17 18 19 20 21 22 23 24 14 26 27 28 29 30 31 32 37 ...

Page 197: ...GND 25 nFUSERON 26 26 NC 25 NC 2 SMPS CON 3 Switch Pin Signal Name Dir Pin Signal Name 1 24V 2 NC 3 24VF 3 SMPS CON 2 Fuser Unit Pin Signal Name Dir Pin Signal Name 1 CON2 2 NC 3 5096 02C 4 Main BD CN28 Fuser Unit Pin Signal Name Dir Pin Signal Name 1 AN_FUSER1_OUT 2 AN_FUSER1_OUT2 5 Main BD CN14 Switch Left cover Pin Signal Name Dir Pin Signal Name 1 5V 2 5VL Pin Signal Name Dir Pin Signal Name 2...

Page 198: ...D DGND V6 SCL_OUT2 SCL_OUT2 9 c Deve OEM Key Deve Cartridge 3rd Pin Signal Name Dir Pin Signal Name V7 DEVE_CRUM_SDA DEVE_CRUM_SDA V8 DGND DGND V9 SCL_OUT2 SCL_OUT3 9 d Deve OEM Key Deve Cartridge 4th Pin Signal Name Dir Pin Signal Name V10 DEVE_CRUM_SDA DEVE_CRUM_SDA V11 DGND DGND V12 SCL_OUT2 SCL_OUT4 10 Main BD CN5 Deve Drive CN1 Pin Dir Pin 1 AGND 2 AGND 2 24VF 1 24V 3 AGND 4 AGND 4 24VF 3 24V...

Page 199: ..._DEV_1ST 2 NC 3 AGND 13b Deve Drive CN4 Clutch Deve 2nd Pin Signal Name Dir Pin Signal Name 1 nCLT_DEV_2ND 2 NC 3 AGND 13c Deve Drive CN9 Clutch Deve 3rd Pin Signal Name Dir Pin Signal Name 1 nCLT_DEV_3RD 2 NC 3 AGND Deve Drive CN5 C lutch Deve 4th Pin Signal Name Dir Pin Signal Name 1 nCLT_DEV_4TH 2 NC 3 AGND 14 Main Board CN 35 Solenoid T1 clean Pin Signal Name Dir Pin Signal Name 1 nSOL_T1_CLN ...

Page 200: ...18 5V1 Pin Signal Name Dir Pin Signal Name 19 DGND 20 DGND 21 DGND 22 DGND 23 DGND 24 DGND 25 DGND 26 DGND 27 DGND 28 DGND 29 DGND 30 DGND 31 nINIT 32 nFAULT 33 NC 34 NC 35 NC 36 nSELECTIN 18 Main BD CN2 USB Port Pin Signal Name Dir Pin Signal Name 1 VBUS_2270 VBUS 2 DN D 3 DP D 4 DGND AGND 5 AGND FGND 6 AGND FGND 19 Main BD CN4 Panel CN2 Pin Signal Name Dir Pin Signal Name 1 DGND 1 DGND 2 5V 2 VC...

Page 201: ... 18 31 XPData 18 32 A_ADDR 13 32 XPAddr 11 33 DATA 17 33 XPData 17 34 A_ADDR 12 34 XPAddr 10 35 DATA 16 35 XPData 16 36 A_ADDR 11 36 XPAddr 9 37 A_ADDR 6 37 XPAddr 4 38 A_ADDR 10 38 XPAddr 8 39 nNPC_RST 39 nRESET_P 40 A_ADDR 9 40 XPAddr 7 41 nWAIT 41 nXPWAIT 42 A_ADDR 8 42 XPAddr 6 43 NC 43 NC 44 A_ADDR 7 44 XPAddr 5 45 NC 45 NC 46 NC 46 NC 47 NC 47 NC 48 DGND 48 GND 49 NC 49 NC 50 nRD 50 nXPRE 51...

Page 202: ...in BD CN24 Solenoid Duplex Pin Signal Name Dir Pin Signal Name 1 24VF 2 nSOL_DUP 30 Main BD CN26 Solenoid T2 home Pin Signal Name Dir Pin Signal Name 1 3 3V 1 2 NC 2 3 nSOL_T2 3 31 Main BD CN17 Sensor Waste Toner Exit Sensor Pin Signal Name Dir Pin Signal Name 1 3 3V 1 2 DGND 2 3 nS_TONER_RX 1 4 DGND 2 5 3 3V 1 6 nS_EXIT 2 7 DGND 3 32 Main BD CN15 Sensor Temperature Pin Signal Name Dir Pin Signal ...

Page 203: ...3 GND 4 nLDON_LSU 4 LD ON 5 VDO_LSU 5 VIDEO 6 VDO_LSU 6 VIDEO 7 nSH_LSU 7 S H Motor Driver 8 CLK_LSU 1 CLK 9 nRDY_LSU 2 READY 10 nSTART_LSU 3 START 11 AGND 4 GND 12 24V 5 VCC 35 Main BD CN11 PTL CN1 Temp Pin Signal Name Dir Pin Signal Name 1 5V 1 2 EN_ERASER 2 3 A_TEMP2 1 4 GNDA 3 37 Main BD CN6 OPC Unit Pin Signal Name Dir Pin Signal Name 1 A_OPC_KEY 2 DGND ...

Page 204: ...4 GND4 D8 GND5 U8 GND6 GND7 D13 U13 GND8 D17 GND9 R20 GND23 L12 GND24 M9 GND25 M10 GND26 M11 GND27 M12 GND28 G4 GND29 N4 GND3 T18 K9 GND17 K10 GND18 K11 GND19 H4 GND2 K12 GND20 L9 GND21 L10 GND22 L11 D4 GND1 H17 GND10 N17 GND11 U17 GND12 GND13 J9 J10 GND14 J11 GND15 J12 GND16 C18 C19 DQM1 D18 DQM2 B19 DQM3 EINT0 TnRST V8 EINT1 TCK W8 EINT2 nRXD2 TMS Y8 U9 EINT3 nTXD2 GPO9 A1 GND0 H3 DATA5 GPI6 E3 ...

Page 205: ...NC229 33pF DGND OSC1 ATS 49 U 12MHz 50ppm 2801 003886 C9 18pF STS104B F3 GND 2 IN 1 OUT 3 NR8 0 STS104B F6 GND 2 IN 1 OUT 3 DGND R30 DGND 3 3V DGND NF5 STS104B 2901 001178 2 GND 1 IN 3 OUT 39 DGND 3 3V DGND DGND C84 33pF 2804 001536 GND 2 1 NC OUT 3 4 VCC R72 COS 000607 12 000M NOSC2 C25 DGND 200 10uF 100nF VDD 7 2 VSS XIN CLKIN 1 XOUT 8 C28 16V 1205 002339 FRSEL 6 4 S0 S1 3 SSCLK 5 C122 100nF CY2...

Page 206: ...A12 3 A13 2 A14 49 VSS1 28 VSS2 41 VSS3 54 VSSQ1 6 12 VSSQ2 VSSQ3 46 52 VSSQ4 40 UDQM 39 VDD1 1 14 VDD2 VDD3 27 3 VDDQ1 VDDQ2 9 43 VDDQ3 VDDQ4 7 8 DQ4 DQ5 10 11 DQ6 DQ7 13 42 DQ8 DQ9 44 15 LDQM NC RFU 4 45 DQ10 DQ11 47 48 DQ12 DQ13 50 51 DQ14 DQ15 53 5 DQ2 DQ3 A7 A8 33 34 A9 20 BA0 BA1 21 CKE 37 CLK 38 2 DQ0 DQ1 22 35 A11 36 A12 A2 25 26 A3 A4 29 30 A5 A6 31 32 CAS 17 19 CS 18 RAS WE 16 A0 23 24 A...

Page 207: ...N9 1 3702 001121 1 3 3V 7 8 RA6 1 2 3 4 5 6 19 1 16W 39 55 10 R64 56 DGND 17 24 20 18 5 31 22 34 FX2CA2 60P 1 27DSAL 38 36 A_ADDR 19 ADDR 19 ADDR 20 A_ADDR 20 ADDR 21 A_ADDR 21 ADDR 14 21 A_ADDR 14 21 A_ADDR 14 15 A_ADDR 7 IN_3 3 A_ADDR 14 A_ADDR 15 A_ADDR 16 A_ADDR 17 ADDR 14 ADDR 15 ADDR 16 ADDR 17 A_ADDR 18 ADDR 18 A_ADDR 12 A_ADDR 6 ADDR 2 13 ADDR 4 ADDR 3 A_ADDR 5 A_ADDR 4 A_ADDR 3 A_ADDR 2 A...

Page 208: ...4 LCLKO 35 LD0 14 15 LD1 LD10 27 28 LD11 LD12 30 DACK 38 DM 58 56 DP DREQ 37 39 EOT LA0 8 7 LA1 LA2 6 IOR 44 45 IOW 47 IRQ RESET 43 ALE 40 AVDD 51 AVSS0 50 52 AVSS1 0904 001752 NET2270 U27 CS 46 DMARD 36 13 DMAWR NR12 USB_3 3V AGND_USB 0 R348 0 4 DGND DGND 35 7 1 R343 10pF C266 100nF USB_3 3VA C274 2703 000300 R1608_BEAD LK16081ROK T L30 1uH RA48 10K 1 3 5 7 AGND_USB 0407 000101 ND1 1 3 2 USB_3 3V...

Page 209: ...1006 001224 DGND GND DGND DGND 14 22 5V1 nAutoFd GND L16 2 GND IN 1 OUT 3 5V DGND DGND F2 STS104B GND 20 LCTL4036E09 19 GND 12 11 PError R16 10K Busy 36 31 nSelectIn 33 nInit SEN_5V AGND nAck 10 6 DGND INSTPAR L5 VCC 3 3V DGND DGND Data5 P1 P2 12 P3 10 8 P4 P5 2 1 P6 P7 28 27 P8 20 B3 B4 23 21 B5 B6 19 18 B7 B8 17 16 B9 GND 22 15 6 A5 7 9 A6 A7 11 13 A8 A9 14 26 B1 B2 25 24 HIC1 SUPER1284 2011 001...

Page 210: ...GPIO3_7 GPIO4_0 112 113 GPIO4_1 GPIO4_2 114 115 GPIO4_3 98 GPIO2_4 GPIO2_5 99 100 GPIO2_6 GPIO2_7 101 102 GPIO3_0 103 GPIO3_1 105 GPIO3_2 GPIO3_3 106 88 GPIO1_4 GPIO1_5 90 GPIO1_6 91 92 GPIO1_7 GPIO2_0 93 94 GPIO2_1 GPIO2_2 95 96 GPIO2_3 18 GPIO0_4 GPIO0_5 19 20 GPIO0_6 GPIO0_7 22 84 GPIO1_0 GPIO1_1 85 86 GPIO1_2 GPIO1_3 87 CPU_DATA7 56 CS_N_IN 40 74 DA_OUT GNDA 75 14 GPIO0_0 GPIO0_1 15 16 GPIO0_2...

Page 211: ... DO1 C284 DGND C255 0 068nF 100nF 4 1nF C207 DGND LM393D 1202 000164 U24 2 5 6 7 1 5V R241 3711 002813 CN12 1 35303 1250 100 DGND DM7407MX U22 5 11 10 DGND 10K R291 5V 5 6 U22 3 DM7407MX 1K DGND DGND R156 5 NC231 33pF DGND 16V 470uF C99 C238 100nF R142 10K 9 5V R226 1K 100nF C110 R289 10K 3 3K DM7407MX U22 4 9 8 R151 11 C86 100nF 3W 0 39 R82 10K 100 R242 10 R287 DGND DGND C296 10nF 100nF C71 3 3V ...

Page 212: ...3 4 18 8 21 24VF 19 25 3 4 9 24VF DGND C176 470uF 16V 24VF1 DGND 100nF C292 13 8 24V 11 3 4 DM7407MX U21 2 DGND DGND 5 6 3 3V 5V 3 GNDA GNDA2 14 10 AGND2 2 1nF C251 15K R195 4 7 1 14 2 R196 24V DM7407MX U8 1 DGND DGND DGND 100K 100 100 R251 1_8V1 R248 5V1 6 11 10 23 DGND DM7407MX U18 5 L41 B600 7 AGND 5V 20 18 DGND4 C311 1nF CN37 1 35303 0850 1 AGND 16 DGND 5VL C57 100nF U18 1 DM7407MX 7 1 14 2 R2...

Page 213: ...7 10K DGND 74LCX06M U26 4 0803 003264 9 8 2 5V D28 M4 C209 100nF AGND 3 2 DGND 510 R277 AGND 0501 000457 Q13 MMBT2222ALT1 1 DGND R183 510 AGND 5V R181 5 1K C309 1nF 1nF C230 100 R192 10nF C174 CN29 1 35303 0350 1 C287 100nF 1 2K R171 3 4 6 24VF 3 0803 003264 U25 2 74LCX06M R201 10K 10 100 R255 R199 10K 5V 5V 3 8 DGND 5 9 1 2 0803 001393 9 8 3711 002811 CN27 1 35303 1050 DM7407MX U21 4 R180 R179 5 ...

Page 214: ...1 3 C183 10nF 100 R120 R205 100 7 1 4W 39 R111 DGND 6 C150 10nF DGND 3711 003409 3 10nF DGND 4 3 C179 1 3 3V DGND DGND 3711 000225 5045 04A CN31 1 1 3 2 47K R145 100nF 0407 000101 D16 3 3V C288 R104 15K 3 3 R203 100 100 R101 3 3V 2 10nF DGND 47K C125 R204 2 3 3V 4 C133 10nF 2 DGND 3711 003410 4 CN33 1 1 DGND D25 1 3 2 35303 0350 5 DGND 0407 000101 47K R113 DGND 1 3 3V CN17 1 35303 0750 100 R140 DG...

Page 215: ...R168 100nF C165 DGND C161 100nF U26 6 74LCX06M 13 12 24VF AGND DGND 24VF AGND 0803 003264 C214 C173 100nF 5V 100nF C167 100nF 5045 03A CN26 1 1 M4 D21 AGND 5V 100nF C178 DGND 3 1 R190 100 2 KSC1008 Y Q9 0501 000010 2 AGND C170 100nF AGND C215 100nF 13 12 AGND DGND AGND 24VF AGND 5V 74LCX06M U25 6 0803 003264 AGND D20 M4 100nF C212 510 R146 R152 5 6K D27 M4 5 6K 3711 000198 3 R186 R138 1K 0803 0032...

Page 216: ...7 L9 1nF D22 MMSD914T1 INSTPAR 3301 001258 3 2 8 4 1 1K U24 1 1202 000164 LM393D R178 C160 100nF GNDA GNDA 4 3 6 3 3VA 100nF R83 4 7K DGND GNDA 3 3VA C108 U25 3 74LCX06M 0803 003264 5 6 R266 33K 2 CN10 1 35303 0750 1 100uF 16V A 100 R84 DGND C263 2 3 3V 3 3V R174 20K 1 16W 30K R198 30K 1 R193 DGND GNDA 5 6K R170 C264 100nF 4 7K R177 68 L21 INSTPAR L20 5VL 3301 001240 R1608_BEAD INSTPAR 15 4K 1 3 3...

Page 217: ... Q3 0501 000457 0803 003264 3 4 74LCX06M U26 2 AMMSD914T1 D35 3K 1 R284 100nF C117 2 GNDA NR15 5 6K NR14 5 6K 47K R99 47K 1 3301 000325 L10 INSTPAR 3 3VA 3K 1 R93 3K KSA708_Y NQ1 2 3 1 3 3VA 3 3VA DM7407MX U21 3 5 6 3 3VA 35303 0250 CN6 1 1 M4 ND3 GNDA 16V 100uF C119 47K R267 47K 1 B1 INSTPAR 10nF C134 100nF C237 STS104B F7 2 1 3 4 GNDA P P R129 100K 100nF C148 R121 100K 39 R332 C114 100nF DGND 10...

Page 218: ...AD L25 R167 74LCX07M U28 5 11 10 DGND 3 3V 1K D45 1 3 2 DGND 6 R302 1K R304 10K DGND 7 1 14 2 DGND U28 1 74LCX07M 100nF C159 R258 4 DGND 100 DGND DGND U28 2 74LCX07M 3 74LCX07M U23 6 13 12 5V DGND C116 100uF 50V 100nF C293 R303 DGND 10K 7 D10 1 3 2 5 CN16 1 35303 0850 1 3711 002809 8 10 C248 100nF U23 5 74LCX07M 11 DGND 100pF C138 U23 1 74LCX07M 7 1 14 2 100nF D13 1 3 2 C164 4 DGND DGND AGND 2 3 1...

Page 219: ... 5V DGND 100nF C294 510 R335 1 P CN38 1 35303 0950 1 4 CN5 1 GF102 12S TS NF S 10 9 6 AGND C227 1nF 5 C225 10nF C216 100nF 2 100nF C258 11 10 0803 003264 U25 4 74LCX06M 9 8 U21 5 DM7407MX 10K R319 R329 100 12 R330 DGND AGND 100 DGND 24VF 10K 5V 24VF R321 10K R320 7 AGND 5 6K R336 10nF C218 10nF C220 5045 03A CN35 3 3 C219 10nF 8 3 3V 5 6 2 U28 3 74LCX07M 7 DGND 5V DM7407MX U19 4 9 8 P 13 12 1 74LC...

Page 220: ......

Page 221: ......

Page 222: ...D SAMSUNG ELECTRONICS CO LTD E F 2 7 8 A B C 3 4 5 6 ALL RIGHTS RESERVED A B C 1 CRUM_DEVE ...

Page 223: ...CRU_ITB A SAMSUNG ELECTRONICS CO LTD A 2 3 4 5 6 B C ALL RIGHTS RESERVED 7 8 1 B C E F D ...

Page 224: ......

Page 225: ...4148 R52 24KJ R59 5W15mJ R28 1KJ D6 200V1A D7 60V20A Q7 A709 C10 50V1uF D12 60V3A C29 10V10OOuF 5V 0 8A D3 200V1A D8 60V3A C23 24V 1 5A R32 R13 1 2W6 8J C16 35V1000uF C32 100V103J R12 1W22J R3 13SP10 C17 1KV222K R8 1W22KJ C28 R23 10KJ R45 1W6 8J CON3 R35 330J RV1 100J F1 250V8A TNR1 10D221 R1 1W560KJ R46 1W6 8J LF1 L5861 AR2 1KV AR1 1KV LF2 L5858 F2 250V5A C9 200V1200uF R9 1W22KJ Q3 500V24A R22 1W...

Page 226: ...D C20 C25 U3 KA431 R34 330J R35 330J D10 4148 R52 R59 5W15mJ R28 1KJ D6 200V1A D7 60V20A Q7 A709 D12 60V3A C29 10V10OOuF 5V 0 8A D3 200V1A D8 60V3A C23 24V 1 5A R32 C16 35V1000uF I 1 O 2 G 3 C 4 U4 KA78R05 R12 1W22J R3 13SP10 C28 R45 1W6 8J R46 1W6 8J CON3 RV2 RV1 100J F1 250V8A TNR1 10D561 R1 1W560KJ LF1 0610V AR2 1KV AR11KV F2 250V5A LF2 L5842 L1 L5857 R8 1W47KJ R10 1W47KJ R22 1W0 44JX2 R23 10KJ...

Page 227: ...D C20 C25 U3 KA431 R34 330J R35 330J D10 4148 R52 R59 5W15mJ R28 1KJ D6 200V1A D7 60V20A Q7 A709 D12 60V3A C29 10V10OOuF 5V 0 8A D3 200V1A D8 60V3A C23 24V 1 5A R32 C16 35V1000uF I 1 O 2 G 3 C 4 U4 KA78R05 R12 1W22J R3 13SP10 C28 R45 1W6 8J R46 1W6 8J CON3 RV2 RV1 100J F1 250V8A TNR1 10D561 R1 1W560KJ LF1 0610V AR2 1KV AR11KV F2 250V5A LF2 L5842 L1 L5857 R8 1W47KJ R10 1W47KJ R22 1W0 44JX2 R23 10KJ...

Page 228: ...This Service Manual is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law This service manual is also provided on the web the ITSELF system f Samsung Electronics Co Ltd http itself sec samsung co kr ...

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