Samsung SCX-4701ND Service Manual Download | Manualshive

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2. Product specification and description

2.1.3. Model Comparison Table

Samsung

SCX-4729FW

Samsung

SCX-4824FN

HP

M1536DNF

Image

Speed (A4)

28 ppm

24 ppm

25 ppm

FPOT

(from ready)

less than 8.5 sec

less than 9 sec

less than 7 sec

Processor

533 MHz

360 MHz

400 MHz

Memory

128 MB

128 MB

32 MB

Emulation

GDI, PCL6

GDI, PCL6

GDI, PCL6, PS3

Input

250 CST, 1 MP

250 CST, 1 MP

250 Bin, 10 MP

Output

120 sheet

100 sheet

100 sheet

Paper

Capacity

ADF

40 sheet

30 sheet

35 sheet

Duplex (Auto)

Yes

Yes

Yes

Noise

50 dBA

49 dBA

51 dBA

Toner Cartridge

1.5/2.5K (1K)

2/5K (2K)

2.1K (1K)

Copyright© 1995-2012 SAMSUNG. All rights reserved.

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Summary of Contents for SCX-4701ND

Page 1: ... SCX 4726FN SERVICEMANUAL Mono Laser MFP Contents 1 Precautions 2 Product specification and description 3 Disassembly and Reassembly 4 Alignment and Troubleshooting 5 System Diagram 6 Reference Information Refer to the service manual in the GSPN see the rear cover for more information ...

Page 2: ...er specification 2 2 2 1 2 3 Scan specification 2 3 2 1 2 4 Fax specification 2 4 2 1 2 5 Controller and Software 2 5 2 1 2 6 Paper Handling 2 7 2 1 2 7 Consumables 2 8 2 1 2 8 Reliability and Service 2 8 2 1 2 9 Environment 2 8 2 1 2 10 Maintenance parts 2 9 2 1 2 11 Options 2 9 2 1 3 Model Comparison Table 2 10 2 2 System Overview 2 11 2 2 1 Front View 2 11 2 2 2 Rear View 2 12 2 2 3 Paper Path ...

Page 3: ...bly 3 1 3 1 Precautions when replacing parts 3 1 3 1 1 Precautions when assembling and disassembling 3 1 3 1 2 Preautions when handling PBA 3 1 3 1 3 Releasing Plastic Latches 3 2 3 2 Screws used in the printer 3 3 3 3 Replacing the Main SVC parts 3 4 3 3 1 Cover 3 4 3 3 2 OPE 3 5 3 3 3 Scanner 3 6 3 3 4 ADF 3 7 3 3 5 ADF Roller 3 7 3 3 6 ADF Motor 3 8 3 3 7 Scan Motor 3 9 3 3 8 CIS Unit 3 10 3 3 ...

Page 4: ...Easy Printer Manager Windows Mac only 4 14 4 1 6 2 Using Samsung Printer Status Windows only 4 16 4 1 6 3 Using Smart Panel Linux only 4 17 4 1 7 Updating Firmware 4 18 4 1 7 1 Update the firmware by using the USB port 4 18 4 1 7 2 Update the firmware by using the network 4 19 4 1 8 Tech Mode 4 21 4 2 Troubleshooting 4 26 4 2 1 Procedure of checking the symptoms 4 26 4 2 1 1 Basic Check List 4 27 ...

Page 5: ...m to the requirements of DHHS 21 CFR chapter 1 Subchapter J for Class I 1 laser products and elsewhere is certified as a Class I laser product conforming to the requirements of IEC 60825 1 Class I laser products are not considered to be hazardous The laser system and printer are designed so there is never any human access to laser radiation above a Class I level during normal operation user mainte...

Page 6: ...arply around corners or wise damaged Do not place objects on top of the power cable If the power cable is damaged it could overheat and cause a fire Exposed cables could cause an electric shock Replace the damaged power cable immediately do not reuse or repair the damaged cable Some chemicals can attack the coating on the power cable weakening the cover or exposing cables causing fire and shock ri...

Page 7: ...s are replaced correctly Please carry out the following procedures before dismantling the product or replacing any parts 2 Ensure that power is disconnected before servicing or replacing any electrical parts 3 Disconnect interface cables and power cables 4 Only use approved spare parts Ensure that part number product name any voltage current or temperature rating are correct 5 When removing or re ...

Page 8: ...n get harm 3 When you move the printer use safe lifting and handling techniques This printer is heavy 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 Ensure the printer is installed on a level surface capable of supporting its weight Failure to do so could cause the printer to tip or fall ...

Page 9: ...n the vicinity of the assembly 3 Use only a grounded tip soldering iron to solder or desolder ESDs 4 Use only an anti static solder removal device Some solder removal devices not classified as 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 rep...

Page 10: ...29 ppm in Letter 2 Printing Resolution Up to 1 200 x 600 dpi effective output 3 Processor 533 MHz 4 Printer Language Emulation PCL6 5e SPL 5 Memory 128MB 6 Interface High speed USB 2 0 10 100 BaseTX network connector 802 11b g n wireless LAN SCX 4729FW 7 Toner cartridge Initial 1K Sales 1 5K 2 5K two types 2 1 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 11: ...t 2 1 2 2 Copier specification Item Specification Copy Speed Simplex to Simplex up to 20 cpm in A4 FCOT B W From Ready Less than 15 seconds from platen Text Scan 600 x 600 dpi Optical 600 x 300 dpi ADF Printing 600 x 600 dpi Scan 600 x 600 dpi Optical 600 x 600 dpi Platen Printing 600 x 600 dpi Text Photo Scan 600 x 600 dpi Optical 600 x 300 dpi ADF Printing 600 x 600 dpi Scan 600 x 600 dpi Optica...

Page 12: ...alftone mono 20 ipm 300 dpi Gray mono 20 ipm 300 dpi Scan Speed Color 6 ipm 300 dpi Optical 1200 x 1200 dpi Resolution Enhanced 4 800 dpi x 4 800 dpi Halftone 256 levels Max Document Width Max 216 mm 8 5 Effective Scan Width Max 208 mm 8 2 Max Document Length ADF 356 mm 14 Platen 297 mm 11 7 Scan Size Effective Scan Length ADF 348 mm 13 7 Platen 289 mm 11 4 Color 24 bits Scan Depth Mono 1 bit for ...

Page 13: ...R MMR JBIG JPEG Color Fax Yes Tx only ECM Yes Std 203 x 98 dpi Fine 203 x 196 dpi Resolution Mono S Fine 300 x 300 dpi Handset Yes China Only On hook Dial Yes Search Yes Phone Book Speed Dial 200 locations Group Dial Group Dial TAD I F Yes Tone Pulse Yes Selectable in Tech Mode Pause Yes Auto Redial Yes Last Number Redial Yes Caller ID No Telephone Features External Phone Interface Yes Copyright 1...

Page 14: ...009 1 2010 32 64 bit Ubuntu 6 06 6 10 7 04 7 10 8 04 8 10 9 04 9 10 10 04 32 64 bit SuSE Linux Enterprise Desktop 10 11 32 64 bit Debian 4 0 5 0 32 64 bit Mac OS X 10 4 10 6 Supporting OS UNIX Sun Solaris 9 10 x86 SPARC HP UX 11 0 11i v1 11i v2 11i v3 PA RISC Itanium IBM AIX 5 1 5 2 5 3 5 4 WHQL Windows 2000 XP 32 64bits Vista 32 64bits 2003 Server 32 64bits 2008 Server 32 64bits 7 32 64bits 2008 ...

Page 15: ...pporting OS Windows Microsoft Windows 2000 XP 32 64bits 2003 32 64bits Vista 32 64bits 2008 32 64bit 7 32 64bit Mac Mac OS 10 4 10 6 Linux RedHat Enterprise Linux WS 4 5 32 64 bit Fedora 5 6 7 8 9 10 11 12 13 32 64 bit SuSE Linux 10 1 32 bit OpenSuSE 10 2 10 3 11 0 11 1 11 2 32 64 bit Mandriva 2007 2008 2009 2009 1 2010 32 64 bit Ubuntu 6 06 6 10 7 04 7 10 8 04 8 10 9 04 9 10 10 04 32 64 bit SuSE ...

Page 16: ...etter Oficio Folio Legal Envelope No 10 Monarch DL C5 C6 Postcard4x6 Custom Media type Plain Thick Thin Cotton Colored Pre printed Recycled Envelope Transparency Label Cardstock Bond Archive Media weight 16 58 lb 60 to 220 g m Multi purpose tray Sensing Yes Optional Cassette Tray N A Output Stacking Capacity Face Down 120 sheets 80 g m Face Up 1 sheet Output Full sensing Yes Supporting SCX 4728 47...

Page 17: ...ly Duty 12 000 pages MPBF 30 000 pages MTTR 30 min SET Life Cycle 100 000 pages or 5 years whichever comes first 2 1 2 9 Environment Item Specification Temperature 10C to 32C Operating Environment Humidity 20 to 80 Printing Less than 50 dB Standby Less than 30 dB Acoustic Noise Level Sound Power Pressure Sleep Back Ground Level Ready Less than 60 W AVG Less than 360 W Max Peak Less than 400 W Powe...

Page 18: ...91 01034A 110V JC91 01034B 100 000 pages Transfer Roller JC66 01218A 100 000 pages Pick Up Forward Roller Assy JC93 00405A 50 000 pages Retard Roller JC90 01107A 50 000 pages 2 1 2 11 Options Item Specification Memory N A Second Cassette N A Hard Disk N A 2 9 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 19: ...9 sec less than 7 sec Processor 533 MHz 360 MHz 400 MHz Memory 128 MB 128 MB 32 MB Emulation GDI PCL6 GDI PCL6 GDI PCL6 PS3 Input 250 CST 1 MP 250 CST 1 MP 250 Bin 10 MP Output 120 sheet 100 sheet 100 sheet Paper Capacity ADF 40 sheet 30 sheet 35 sheet Duplex Auto Yes Yes Yes Noise 50 dBA 49 dBA 51 dBA Toner Cartridge 1 5 2 5K 1K 2 5K 2K 2 1K 1K Copyright 1995 2012 SAMSUNG All rights reserved 2 10...

Page 20: ...ending on model or country 1 Document feeder cover 2 Document feeder guide cover 3 Document feeder output tray 4 Control Panel 5 Paper level indicator 6 Tray 7 Manual feeder tray 8 Front cover 9 Output tray 10 Output support 11 Paper width guide on a manual feeder tray 12 Scanner lid 13 Scanner glass 14 Document feeder input tray 15 Paper width guide on a Document feeder 16 Document feeder output ...

Page 21: ...machine depending on its model Some features and optional goods may not be available depending on model or country 1 Network port 2 Telephone line socket Line 3 Extension telephone socket EXT 4 USB port 5 Power switch 6 Power receptacle 7 Rear cover Copyright 1995 2012 SAMSUNG All rights reserved 2 12 ...

Page 22: ...tion and description 2 2 3 Paper Path The following diagram displays the path the paper follows during the printing process ADF Engine Simplex Path Duplex Path MP Path 2 13 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 23: ...ts of the mechanical parts comprising Frame Duplex Toner cartridge Drive unit Transfer roller Fuser Cassette The Hardware part consists of the main control board power board operation panel PC Interface 11 10 9 8 4 3 1 2 5 6 7 1 ADF 2 Scanner Platen 3 LSU 4 Toner cartridge 5 MP 6 Pick Up Roller 7 Regi Roller 8 Cassette 9 Duplex 10 Fuser 11 Exit Roller Copyright 1995 2012 SAMSUNG All rights reserve...

Page 24: ...down to come into contact with the surface of the paper The pickup roller moves down when the pickup clutch is activated The forward roller and the retard roller serve to make sure that a single sheet of paper is moved into the paper path and the paper is moved as far as the registration roller by the means of the feed roller A C B A Forward roller B Retard roller C Pick up roller 3 Registration r...

Page 25: ...vers the toner of the OPC drum to the paper Life Span Print over 100 000 sheets in 15 30 2 2 4 3 Drive Unit In this model the driving device consists of BLDC motor Regi Pick up clutches various gears for OPC Fuser Pick up Feed Regi Exit Copyright 1995 2012 SAMSUNG All rights reserved 2 16 ...

Page 26: ...er does not stick to the surface 4 Pressure roller A pressure roller mounted under a heat roller is made of a silicon resin and the surface also is coated with Teflon When a paper passes between a heat roller and a pressure roller toner adheres to the surface of a paper and is permanently fused 5 Halogen Lamp Voltage 120 V 115 5 220 V 230 5 Capacity 850 Watt 25 W 6 Items for safety Protecting devi...

Page 27: ...PC drum is turned with the paper feeding speed The HSYNC signal is created when the laser beam from LSU reaches the end of the polygon mirror and the signal is sent to the controller The controller detects the HSYNC signal to adjust the vertical line of the image on paper In other words after the HSYNC signal is detected the image data is sent to the LSU to adjust the left margin on paper The one ...

Page 28: ...etic 1 element contacting method Toner Non magnetic 1 element shatter type toner The life span of toner ISO 19752 pattern A4 standard Initial toner 1K Sales toner 1 5K 2 5K OPC Cleaning Collect the toner by using cleaning blade Handling of wasted toner Collect the wasted toner in the cleaning frame by using cleaning blade Classifying device for toner cartridge ID is classified by CRUM 1 OPC Drum 5...

Page 29: ...r IC Les s 2 BLDC MAIN 1 LSU P Motor 1 5V CRUMIF SDIO FET x2 5V_SMPS 24V_SMPS MicroS W hvps 3_3V_C_OPEN1 CIS IF LAFE1001 MODEMIF Local bus A 7bit D 8bit RTC CR2032 T B D CIS LED Driver AK7864 Sens or 4 ADF Cover ADF_P_DET ADF_P_POS Scan home Motor Step 2 SCAN ADF Speaker MODEMIF Conexant UI 2 Line LCD OPE LSU Video Dual beam S P I USB2 0 Device UAR T Emb ed d ed USB GPIO o r UART CIS Module SCX 47...

Page 30: ...R2 128MB is adopted for high speed data processing Boot has 16 MB SPI 4 MB SPI USB is the embedded type and wired network supports 100M full duplex Main board diagram Main Processor Chorus3 Next 533MHz DDR3 128MB 64Mx16bit LocalBus USB_DP DM FAX PBA SPI 1 16MB SerialNor 4MB SerialNor SPI 2 SPI 3 WLAN PBA 100Bas ed TX OPE PBA UART EEPROM 64KB I2C SCAN Scan Bus 2 21 Copyright 1995 2012 SAMSUNG All r...

Page 31: ...connector 8 ADF Module interface connector 9 SMPS interface connector 10 Main BLDC Motor connector 11 Fax board interface connector 12 Paper Exit sensor connector 13 Fuser thermistor interface connector 14 Wired network connector 15 USB device connector 16 Wireless module interface connector SCX 4729FW only Information Part Code JC92 02409A SCX 4729FD JC92 02413A SCX 4729FW JC92 02593A SCX 4726FN ...

Page 32: ...s with main controller via UART The power LED is controlled by the main board OPE board diagram SOC C3N OPE MICOM STM8S103K3MAFTR LED INDICATOR KEY INPUT OPE_TX OPE_RX STATUS MODE ANIMATION ECO WPS POWER LED LCD DISPLAY VHC16232HR OPE board image 1 Information Part Code JC92 02404A PBA name PBA OPE Connection 1 INTERFACE CONNECTOR TO MAIN CONTROLLER 2 23 Copyright 1995 2012 SAMSUNG All rights rese...

Page 33: ...ONNECTOR TO SYSTEM BOARD JC39 01565A FFC CABLE WLAN 2 2 5 4 Fax board Fax controller FCON controls the fax sending and receiving It consists of CPU CIP6 400MHz PCI interface PCIe express Bridge chip 256MB DDR2 memory 4MB flash memory and audio control chip FCON is connected to the Con Joint PBA 1 2 Information Part Code JC92 01746D E PBA LIU Connection 1 INTERFACE CONNECTOR TO MAIN CONTROLLER 2 SP...

Page 34: ...e Joint PBA is the interface connection board for Regi clutch Pick up clutch Fan Joint PBA image Information Part Code JC92 02406A PBA name JOINT PBA Connection 1 Regi Clutch 2 Pick Up Clutch 3 HVPS I F 4 Fan 2 25 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 35: ...des 5V and 24V from a 110V 220V power input SMPS board image Specification General Input Output Voltage AC 110V 90V 135V AC 220V 180V 270V Input Current 10 0A 110V 8 0A 220V Output Power 58W DC 5V 10W DC 24V 48W Information 110V 220V Part Code JC44 00207A JC44 00206A PBA name SMPS V1 SMPS V2 Connection 1 AC_Inlet 2 INPUT_AC Switch 3 FUSER_AC Output 4 OUTPUT_DC Copyright 1995 2012 SAMSUNG All right...

Page 36: ...ription 1 AC_N 2 AC_N AC Input Switch DC Output Connector CON3 Pin Assign Pin No Description Pin Assign Pin No Description 1 GND Ground 8 5V 5V Power 2 GND Ground 9 5V 5V Power 3 GND Ground 10 GND Ground 4 24V 24V Power 11 24V_OFF Sleep mode 5 24V 24V Power 12 RELAY ON Fuser Relay 6 24V 24V Power 13 24V_F Photo Triac Bias 7 GND Ground 14 Fuser on Fuser On 2 27 Copyright 1995 2012 SAMSUNG All right...

Page 37: ...ncludes MHV DEV BLADE SUPPLY THV HVPS board image Information Part Code JC44 00205A PBA name HVPS Connection 1 Charger 2 DEV 3 SUP 4 Blade 5 THV 6 HVPS I F 7 Clutch I F 8 Outbin Full I F 9 Crum I F 10 FAN SMPS I F 11 Regi Feed sensor I F 12 Empty sensor I F Copyright 1995 2012 SAMSUNG All rights reserved 2 28 ...

Page 38: ...rupter Home Position sensor CIS detection S3 Photo interrupter Paper empty sensor Paper detection S4 Photo interrupter Regi sensor Paper detection S5 Photo interrupter Feed Sensor Paper detection S6 Switch Front Cover Cover Open detection S7 Photo interrupter Bin_full sensor Bin_full detection S8 Photo interrupter Exit Sensor Main board Paper detection 2 29 Copyright 1995 2012 SAMSUNG All rights r...

Page 39: ...specification and description Motor and Clutch Location No Description 1 ADF Motor 2 Scan Motor 3 Main Fan 4 Registration Clutch 5 Pick up Clutch 6 Main Motor Copyright 1995 2012 SAMSUNG All rights reserved 2 30 ...

Page 40: ...f the paper does not clear the sensor after predetermined period of time After the leading edge of the paper passes the feed sensor the paper cannot reach the exit sensor after predetermined period of time The paper exists between the feed sensor and the exit sensor JAM 2 The trailing edge of the paper does not clear the exit sensor within a predetermined 2 2 6 2 Transfer The charging voltage deve...

Page 41: ...xing unit is higher than the specified temperature and the temperature state is detected for a specific duration then the engine defines Over Heat Error When this error is detected the engine stops all functions and keeps it at the error state Also the engine informs the error status of the main system so it can take appropriate action and then the error message is displayed at LCD window or LED i...

Page 42: ...at translates the received document to a Printing Command language which printer can understand and transfers data to spooler 3 Stand alone Application that offers the various printing application Printer Status Monitor Network Management in Window system 4 Web based Application that offers the same functions as Stand alone Application in Web environment Firmware is made up of 1 Application Emulat...

Page 43: ...gement of printing job printer administration Status monitor to monitoring the printer status by real time in Web independent environment on OS 3 Stand alone Application that is a similar Window software as same as 2 above 4 Port Monitor that manages the network communication between spooler and Network Interface Card or various additional application and Network Interface Card this is at fi rst m...

Page 44: ...o data and start selected one After emulation job end Kernel sends the output bit map data to Engine using Printer Video Controller by clock type for LSU Engine print the received data to required paper with the sequential developing process 2 Case of using Network Interface Card After user start to print the wanted document to PCL string or compressed GDI bit map data Driver translate the all gra...

Page 45: ...r unit malfunction 3 1 2 Preautions when handling PBA Static electricity can damage a PBA always used approved anti static precautions 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 c...

Page 46: ...tches Many of the parts are held in place with plastic latches The latches break easily release them carefully To remove such parts press the hook end of the latch away from the part to which it is latched 3 2 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 47: ...6003 000261 DUPLEX SCREW TAPTYPE BH B M3 L6 ZPC WHT SWRCH18A 3 6003 000264 SCREW TAPTYPE PWH B M3 L6 ZPC WHT SWRCH18A 1 6003 000269 FRAME MAIN LEFT SCREW TAPTYPE BH S M3 L6 ZPC WHT SWRCH18A 13 6003 000264 SCREW TAPTYPE PWH B M3 L6 ZPC WHT SWRCH18A 1 6003 000269 FRAME MAIN RIGHT SCREW TAPTYPE BH S M3 L6 ZPC WHT SWRCH18A 6 6003 000196 FRAME PAPER_PATH SCREW TAPTYPE PWH B M3 L10 NI PLT SWRCH18A 9 600...

Page 48: ...fer from your machine depending on its model 3 3 1 Cover 1 Remove the cassette 2 Open the rear cover Release the both hinges 3 Remove the rear cover after removing 6 screws 4 Open the front cover Release the left cover 5 Release the right cover 3 4 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 49: ...3 Disassembly and Reassembly 3 3 2 OPE 1 Lift the OPE unit up 2 Pull and release the OPE unit Unplug the connector Copyright 1995 2012 SAMSUNG All rights reserved 3 5 ...

Page 50: ...left right rear cover 2 Remove 2 screws on the left side 3 Remove 1 screw on the rear side 4 Remove 1 screw on the front side 5 Unplug all connectors connecting the scanner 6 Lift up and release the scanner 3 6 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 51: ...tor cover 2 Unplug the connector Lift up and release the ADF unit 3 3 5 ADF Roller 1 Open the ADF cover 2 Remove 2 holders and 3 E rings 3 Pull the shaft in the direction of arrow Release the ADF roller Assy Copyright 1995 2012 SAMSUNG All rights reserved 3 7 ...

Page 52: ...DF Motor 1 Remove the ADF Unit 2 Open the ADF cover Remove 1 screw 3 Remove 2 screws securing the ADF rear cover Remove the ADF rear cover 4 Remove the ADF motor after removing 3 screws 3 8 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 53: ... Scan Motor 1 Remove the ADF unit Remove the scanner 2 Remove 3 screws from the bottom of the scanner 3 Remove 4 screws 4 Remove the platen glass 5 Release the belt from the scan motor Copyright 1995 2012 SAMSUNG All rights reserved 3 9 ...

Page 54: ...d Reassembly 3 3 8 CIS Unit 1 Remove the ADF Unit Remove the scanner 2 Remove 4 screws 3 Remove the platen glass 4 Unplug the flat cable And then remove the CIS unit 3 10 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 55: ...and Reassembly 3 3 9 Middle Cover 1 Remove the scanner and all covers 2 Unplug the connector 3 Remove 4 screws 4 Remove 2 screws And then lift the middle cover up Copyright 1995 2012 SAMSUNG All rights reserved 3 11 ...

Page 56: ... 2 screws 3 Unplug the flat cable Remove 2 screws And then release the fax board 3 3 11 Main board 1 Remove the right cover 2 Remove the fax board bracket after removing 3 screws 3 Unplug all connector on main board Remove 2 screws And then release the main board 3 12 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 57: ...ard cover by releasing 2 hooks 3 Unplug all connectors on SMPS board Remove 6 screws And then release the SMPS board 3 3 13 HVPS board 1 Remove the right cover 2 Unplug all connectors on HVPS board 3 Remove 6 screws 4 Release the HVPS board Copyright 1995 2012 SAMSUNG All rights reserved 3 13 ...

Page 58: ...2 Remove the main board 3 Remove the sensor connector 4 Release the Bin Full sensor 3 3 15 Main Drive Unit 1 Remove the left cover 2 Remove 5 screws 3 Release the main drive unit after moving the BUSH FUSER SWING to the right 3 14 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 59: ...3 3 16 Pick up and Regi Clutch 1 Remove the left cover 2 Remove the washer securing the clutch Unplug the connector on Joint PBA And release the clutch Regi Clutch Pick up Clutch Copyright 1995 2012 SAMSUNG All rights reserved 3 15 ...

Page 60: ...ly and Reassembly 3 3 17 Pick up and Forward roller 1 Remove the bottom bar after removing 2 screws 2 Remove 2 screws 3 Release the pick up forward roller Assy 3 16 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 61: ...e the cassette 2 Open the roller cover 3 Release the retard roller holder Then release the retard roller form its holder NOTE When reassembling the retard roller holder place two springs on the bottom hole Copyright 1995 2012 SAMSUNG All rights reserved 3 17 ...

Page 62: ...e cassette 2 Open the rear cover Release the both hinges 3 Remove the rear cover after removing 6 screws 4 Stand the machine Push the green handle to release the duplex unit 5 Lift and release the duplex unit 3 18 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 63: ...pen the front cover Remove the toner cartridge 2 Remove the holder Then remove the transfer roller 1 2 3 3 21 LSU 1 Remove the middle cover 2 Unplug 2 flat cables Remove 3 screws And then release the LSU Copyright 1995 2012 SAMSUNG All rights reserved 3 19 ...

Page 64: ...and rear cover 2 Unplug 2 connectors SMPS board x 1 Main board x 1 3 Remove the fuser unit after removing 4 screws 3 3 23 Exit Sensor 1 Remove the fuser unit 2 Release the exit sensor after unplugging the connector 3 20 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 65: ...3 3 24 Feed and Regi sensor 1 Remove the duplex unit 2 Remove 1 screw 3 Remove the sensor cover while pushing the hook Hook 4 Remove the sensor PBA after unplugging the connector Copyright 1995 2012 SAMSUNG All rights reserved 3 21 ...

Page 66: ... screw Remove the GROUND SAW And unplug the motor connector 5 Remove the following parts from the left frame Remove the Joint PBA after removing 1 screw Remove the HOLDER FAN and FAN after removing 1 screw Remove GEAR RDCN EXIT GEAR IDLE EXIT GEAR EXT Remove Clutches and GEAR FEED after removing washers securing them 6 Removing 10 screws 7 Release the FRAME MAIN LEFT 3 22 Copyright 1995 2012 SAMSU...

Page 67: ...3 Disassembly and Reassembly 8 Release the Fan Duct 9 Remove the motor after removing 4 screws Copyright 1995 2012 SAMSUNG All rights reserved 3 23 ...

Page 68: ...ce such as the product maintenance method the test output related to maintenance and repair Jam removing method and so on It includes the contents of manual 4 1 1 Control Panel NOTE This control panel may differ from your machine depending on its model There are various types of control panels 4 1 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 69: ...rolls through the available menus 9 Left Right Arrows Scrolls through the options available in the selected menu and increases or decreases values 10 OK Confirms the selection on the screen 11 Back Sends you back to the upper menu level 12 Start Starts a job 13 Stop Clear Stops an operations at any time 14 Status LED Indicates the status of your machine 15 Numeric keypad Dials a number or enters a...

Page 70: ...re a new cartridge for replacement You may temporarily increase the printing quality by redistributing the toner Status LED Red On A toner cartridge has almost reached its estimated cartridge life It is recommended to replace the toner cartridge The cover is opened Close the cover There is no paper in the tray Load paper in the tray The machine has stopped due to a major error Wireless LED Blue On...

Page 71: ...e document remove the jammed document slowly and carefully Original paper jam in front of scanner 1 Open the document feeder cover 0 0 0 0 0 0 0 0 0 2 Gently remove the jammed paper from the document feeder 3 Close the document feeder cover 0 0 0 0 0 0 0 0 0 Copyright 1995 2012 SAMSUNG All rights reserved 4 4 ...

Page 72: ... 0 0 0 0 2 Gently remove the jammed paper from the document feeder If you see no paper in this area go to next step 3 Open the document feeder 4 Grasp the misfeed paper and remove the paper from the feed area by carefully pulling it 5 Close the document feeder 4 5 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 73: ...oubleshooting Original paper jam in exit area of scanner 1 Remove any remaining pages from the document feeder 2 Gently remove the jammed paper from the document feeder Copyright 1995 2012 SAMSUNG All rights reserved 4 6 ...

Page 74: ...o to the next step 2 Pull out tray1 00 0 0 3 Remove the jammed paper by gently pulling it straight out 0 0 0 0 If the paper does not move when you pull or if you do not see the paper in this area check the fuser area around the toner cartridge 4 Insert tray 1 back into the machine until it snaps into place Printing automatically resumes 4 7 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 75: ...000 000 000 000 000 000 000 000 000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 Open and close the front cover to resume printing In the exit area 1 Open and close the front cover The jammed paper is automatically ejected from the machine If you do not see the jammed paper go to the next step 2 Gently pull the paper out of the output tray Copyright 1995 2012 SAMSUNG All rights reserved 4 8 ...

Page 76: ...pen the front cover And take off the toner cartridge 2 Lift up the cover paper guide 3 Remove the jammed paper by gently pulling it straight out 4 Return the cover paper guide Insert the toner cartridge Close the front cover 4 9 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 77: ...plex unit area 1 Open the rear cover Remove the jammed paper 1 2 2 Pull out tray1 00 0 0 3 Open the duplex unit 1 1 2 4 Remove the jammed paper 5 Close the duplex unit 6 Close the rear cover Copyright 1995 2012 SAMSUNG All rights reserved 4 10 ...

Page 78: ... Setup Firmware version on the control panel c Maintenance menu This menu allows you to maintain your machine 1 Select Menu System Setup Machine Setup Maintenance on the control panel 2 Select the option you want and press OK Clean Drum Cleans the OPC drum of the cartridge by printing a sheet Clean Fuser Cleans the fuser by printing a sheet CLR Empty Msg This option appears only when toner cartrid...

Page 79: ...ustment Select the appropriate value from the drop down list and then click Apply You can also set the altitude in System Setup option on the machine s display Select Menu System Setup Machine Setup Altitude Adj on the control panel NOTE If your machine is connected to the network you can set the altitude via SyncThru Web Service e Printing a report This product provides several printable reports ...

Page 80: ...ective part 1 Pressure Roller 75 4 mm Background 2 Heat Roller 77 6 mm Black spot and image ghost Fuser 3 Charging Roller 26 7 mm Black Spot and line and periodic band 4 OPC Drum 75 49 mm White and Black Spots 5 Developing Roller 36 75 mm White spot Horizontal black band 6 Supply Roller 63 22 mm Periodic Band by little difference of density Toner Cartridge 7 Transfer Roller 47 12 mm Ghost Damaged ...

Page 81: ...Internet Explorer 6 0 or higher is the minimum requirement for Samsung Easy Printer Manager Understanding Samsung Easy Printer Manager To open the program For Windows Select Start Programs or All Programs Samsung Printers Samsung Easy Printer Manager Samsung Easy Printer Manager For Macintosh Open the Applications folder Samsung folder Samsung Easy Printer Manager No Area Description 1 Printer Lis...

Page 82: ... create or delete scan to PC profiles Scan Activation Determines whether or not scanning is enabled on the device Profile Displays the scanning profiles saved on the selected device Basic tab Contains settings related general scan and device settings Image tab Contains settings related to image altering Fax to PC settings This menu includes settings related to the basic fax functionality of the se...

Page 83: ...on the Windows task bar Icon Mean Description Normal The machine is in ready mode and experiencing no errors or warnings Warning The machine is in a state where a soft error has occurred For example a toner low status which may lead to toner empty status Error The machine has at least one hard error such as out of paper fuser error etc Machine does not have ability to come to ready without custome...

Page 84: ...r remaining in each toner cartridge The machine and the number of toner cartridge s shown in the above window may differ depending on the machine in use Some machines do not have this feature 2 Buy Now You can order replacement toner cartridge s from online 3 User s Guide You can view the online User s Guide NOTE This button opens the Troubleshooting Guide when an error occurs You can directly ope...

Page 85: ... firmware by using the USB port Upgrading preparations usblist2 exe Tool which sends firmware data to printer Firmware file to update Upgrade Procedure 1 Turn the machine off 2 Connect USB cable to printer 3 Turn the machine on Check if the printer is the ready status 4 Drag the firmware file and Drop down on the usblist2 exe And then firmware update will be started automatically 5 When upgrading ...

Page 86: ...ut IP address of machine Click Login 2 Log in Admin Mode ID admin PW sec00000 CAUTION Please change SWS Default ID and Password for system security in case of your first connection NOTE If the machine supports Direct Print you can enable this function using the SWS menu The default configuration is Disabled for your security 3 Select Maintenance menu and click upgrade wizard 4 19 Copyright 1995 20...

Page 87: ... browser button and press next button 5 SyncThru will check verify firmware file and compare version and press next button 6 Machine starts upgrading SyncThru will return home page after upgrading is completed Copyright 1995 2012 SAMSUNG All rights reserved 4 20 ...

Page 88: ...h 3 Depth 4 Send Level 9 15 12 DTMF Level High 0 15 Low 0 15 Pause Time 1 9 Dial Mode Tone Pulse Tone Modem Speed 33 6 28 8 14 4 12 0 9 6 4 8 33 6 Error Rate 5 10 10 Clear All Mem Toner Low Level 1 30 10 Platen Scan ADF Scan Transfer Roller Fuser Pickup Roller Retard Roller Forward Roller Clear Count Enter Password Feed Roller Off Engine Footer On On Dial Tone Off On Data Setup Caller ID Off Switc...

Page 89: ...one at DTMF mode Not dial mode Pause Time It shows the delay time when receiving the pause input at auto dial Dial Mode This function can choose dial method Default Dial Dial Pulse Modem Speed You can set the maximum modem speed Communication is done with modem speed automatically set at lower speed when communicating with a slower speed modem since communication is done on the standard of the sid...

Page 90: ...n the LCD window each time you press a key Test Param Set Handset Model only You can set the parameter for handset standard NOTE The parameter value is set at the best condition in the shipment from factory Modem Test Use this feature to hear various transmission signals to the telephone line from the modem and to check the modem If no transmission signal sound is heard it means the modem part of ...

Page 91: ... 0010 Print Temp Target Temperature during run mode 5 0 10 110 0070 0070 LD Power K Black LD Power at Normal Speed 450 50 600 Test Routines This menu can perform the operation test for the main components Code Displayed Name Meaning Input Output State Displayed 100 0000 Main BLDC Motor Main BLDC Motor is On Off Output On Off 100 0010 Main BLDC Motor Ready Detect if Main BLDC Motor runs at normal s...

Page 92: ...THV Roller Input Numeric 3 digits 109 0000 Fuser Temperature A Detects what the temperature A is on fuser Input Numeric 3 digits 109 0040 Fuser Fan Run Fuser Fan Motor On Off Output On Off 109 0050 Fuser Bias Fuser bias voltage on at normal drive level Output On Off 110 0000 LSU Motor1 Run Ready Detects if LSU motor1 runs at normal speed Input High Low 110 0060 LSU Motor1 Run LSU Motor1 On Off Out...

Page 93: ...ain a detailed description of the problem from the customer Power On Red LED on Error message is displayed OPE LED Green OK Print test page Printing quality is nomal Refer to Solution of Image Problem See the troubleshooting for error code END No Power Power Module error Main PBA OPE LED ON Copyright 1995 2012 SAMSUNG All rights reserved 4 26 ...

Page 94: ...curs repeatedly at a specific point in the Paper Path Open the fuser cover Jam clear Dismantle the machine and carefully inspect the region where the jam occurs Especially check if paper fragments are caught in the Fuser 4 Print the Information Page Configuration Try printing a test page from a computer If there is an error check cables and driver installation 5 Check the Print Quality Is there ar...

Page 95: ...per Jam top of duplex P 4 34 M2 2310 Paper Jam bottom of duplex P 4 34 M3 1110 Paper Jam in exit area P 4 35 M3 2130 Output bin full Remove paper P 4 35 S1 3212 Error S1 3212 Turn off then on P 4 36 S1 5221 Install wireless NIC P 4 36 S2 4110 Door open Close it P 4 37 S3 3121 Scanner Locked P 4 38 S6 3123 Network Problem IP Conflict P 4 39 U1 2320 Error U1 2320 Turn off then on P 4 39 U1 2330 Erro...

Page 96: ...Check if the motor connector on the main board is connected properly Reconnect it 2 OPC coupler has overloaded After removing the toner cartridge rotate the OPC coupler Spec 6 kgf cm If there is any damage the OPC coupler can t rotate well Replace the toner cartridge 3 The main BLDC motor is defective Unplug the connector from the motor carefully Replace the main BLDC motor with new one 4 If the p...

Page 97: ...oner cartridge is less than 10 The toner cartridge is at the end of its life Troubleshooting method Print the supply information report Menu System Setup Maintenance Supplies Life Check the life remaining of the toner cartridge If its life is at the end turn the machine off and replace the toner cartridge with new one Copyright 1995 2012 SAMSUNG All rights reserved 4 30 ...

Page 98: ...six times to distribute the toner evenly inside the cartridge And reinstall the toner cartridge 3 Check if the CRUM contact area is contaminated Clean it Error Code C2 1510 Error message Not Compatible Toner cartridge Symptom Toner cartridge is not compatible Troubleshooting method 1 Print the supply information report Check information of the toner cartridge 2 If the toner cartridge is not a Sams...

Page 99: ... 2 Jam removal 2 Remove the tray Check if the loaded paper is in proper place Align it 3 If the jammed paper occurred before entering it to the retard roller check the Sheet Retard Pickup roller Forward roller CST Knock up CST Knock up Spring 4 If the jammed paper occurred after entering it to the retard roller check the Ribs in paper path Copyright 1995 2012 SAMSUNG All rights reserved 4 32 ...

Page 100: ...bleshooting method 1 If there is a jammed paper first clear the jam Refer to 4 1 3 Jam removal 2 Load the paper in tray 3 Check if the empty actuator works normally If it is defective or broken replace it 4 If the actuator operation is OK check the empty sensor Reconnect the sensor connector If the sensor is defective replace it 4 33 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 101: ... normally If it is defective or broken replace it Error Code M2 2110 M2 2310 Error message Paper Jam top of duplex Paper Jam bottom of duplex Symptom A paper jam was detected in the duplex area Troubleshooting method 1 First remove the jammed paper Refer to 4 1 3 Jam removal 2 Check if the paper in tray is loaded properly Adjust the guide Check the machine setting is normal for paper 3 Check if th...

Page 102: ... if the exit sensor and actuator is working normally Error Code M3 2130 Error message Output bin full Remove paper Symptom The machine detected that the output tray has got full or the bin full sensor is defective Troubleshooting method 1 Remove the paper on the output tray The maximum loading capacity is 150 sheets based on standard paper 80g m2 2 Check if the Bin full Sensor connector is connect...

Page 103: ...problem persists replace the main board Error Code S1 5221 Error message Install wireless NIC Symptom The communication error between the main board and the wireless board has occurred Troubleshooting method Check if the connection between the main board and the wireless board is normal If the connection is OK replace the part in this order Flat cable Wireless board Main board Copyright 1995 2012 ...

Page 104: ...witch is defective Troubleshooting method 1 Check if the front cover is closed perfectly 2 Check if the connection between the main board and HVPS board is correct 3 Check if the cover open switch on HVPS board is operated properly If it is defective replace the HVPS board 4 37 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 105: ...od 1 Check if the CIS unit moves when turning the machine off then on 2 Check if the CIS cable is connected correctly Reconnect it 3 If the CIS unit is defective replace it 4 Check if there is any defective part in the scanner Find and replace it 5 If the problem persists replace the main board Copyright 1995 2012 SAMSUNG All rights reserved 4 38 ...

Page 106: ...ne off Re install the fuser unit Then turn the machine on Is the error message is disappeared 2 If the problem persists turn the machine off and remove the fuser unit Check if the fuser connector is connected properly Check if the input voltage is normal Error Code U1 2330 U1 2340 Error message Error U1 2330 Turn off then on Error U1 2340 Turn off then on Symptom The temperature control of fuser u...

Page 107: ...und remove the right cover Check if the LSU harness on the main board is connected properly picture 3 If it is OK remove the top cover Check if the LSU harness on LSU board is connected properly picture 4 Check if the LSU harness is defective picture 5 Reconnect the LSU harness and then execute the LSU motor test in EDC program again 6 If the problem persists replace the LSU 7 If the problem persi...

Page 108: ...nually open the ADF cover top Check if the ADF pick up roller is contaminated or worn out Clean or replace it 4 If the pick up roller is OK check the followings a Check if the ADF motor is working normally b Check if the connector on the ADF joint board is connected correctly 5 If the problem persists replace the ADF unit Error Code U3 4110 Error message Door of scanner is open Symptom ADF or ADF ...

Page 109: ...fer roller 2 Vertical White Line Description White vertical voids occurs in the printed image Check and cause Solution Foreign matter stucks onto the window of internal lenses of LSU mirror Clean the LSU window with recommended cleaner IPA Clean the window with a clean cotton swab The life of the toner cartridge has been expired Replace the toner cartridge Some foreign substances are on the window...

Page 110: ... Solution If dark or blurry black spots occur periodically the rollers in the toner cartridge may be contaminated with foreign matte or paper particles Charge roller 26 7 mm interval OPC drum 75 49 mm interval Clean each voltage terminal of the Charge Magnetic toner cartridge and Transfer roller remove the toner particles and paper particles If faded areas or voids occur in a black image at interv...

Page 111: ...taminated terminal The output from the HVPS is abnormal Replace the HVPS board 6 Dark or Black page Description The printed image is dark or black Check and cause Solution Check if the high voltage terminal is contaminated Clean the high voltage terminal The charging roller is defective Replace the toner cartridge The output from the HVPS is abnormal Replace the HVPS board Copyright 1995 2012 SAMS...

Page 112: ...he transfer roller Assy has any wrong part 3 Replace the transfer roller Assy The toner level is not even on the toner cartridge roller due to the bad blade Replace the toner cartridge 8 Background Description Light dark background appears in whole area of the printing Check and cause Solution Does recycle paper be used Use the proper papers The life of the toner cartridge has been expired Replace...

Page 113: ...igh voltage terminals The life of the toner cartridge has been expired Replace the toner cartridge The life of the transfer roller has been expired Replace the transfer roller 10 Stains on back of page Description The back of the page is stained Check and cause Solution Transfer roller is contaminated Replace the transfer roller Copyright 1995 2012 SAMSUNG All rights reserved 4 46 ...

Page 114: ...e it 12 Partial image void Description The partial void occurs in the printed page Check and cause Solution The printer is not installed on flat ground Install the printer on flat ground Print 10 sample pages for test The developer circulation in the toner cartridge is bad 1 Shake the toner cartridge 2 3 times from right to left Reinstall the toner cartridge Print 10 sample pages for test 2 If the...

Page 115: ...cessary Pick up Forward Retard roller is worn out or contaminated Clean or replace the defective roller 2 No Power Description When system power is turned on LED and LCD on the operator panel do not come on Check and cause Solution The connection between main board and OPE board is bad Reconnect or replace the harness HVPS SMPS output is abnormal Replace the HVPS SMPS board Copyright 1995 2012 SAM...

Page 116: ...IF ABC Chip SW3304B I2C Motor Step A4984 Scan ADF 2 Fan 1 MAIN Main P_Exit Sens or FDC642 24VS TR x2 Sys tem Board WLAN IF W model only FUSER UNIT Contact Thermis tor 850Wlamp Thermos tat Motor IC Les s 2 BLDC MAIN 1 LSU P Motor 1 5V CRUMIF SDIO FET x2 5V_SMPS 24V_SMPS MicroS W hvps 3_3V_C_OPEN1 CIS IF LAFE1001 MODEMIF Local bus A 7bit D 8bit RTC CR2032 T B D CIS LED Driver AK7864 Sens or 4 ADF Co...

Page 117: ...O _ S P M S _ N A F D N G D A E R _ V H T D E E F _ P _ S N E S n I G E R _ P _ S N E S n V 3 3 Y T P M E _ P _ S N E S n P M E T _ T X E 6 2 5 2 4 2 3 2 2 2 1 2 0 2 9 1 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 1 9 8 7 6 5 4 3 2 1 CN1 00 FFC 1mm HVP S _IF S V 4 2 V 3 3 R O S N E S _ V 3 3 M U R C _ V 3 3 C B A s s e l e r i W y l n o l e d o M I P S LC T U O K L C K L C C B A P M E T _ T X E Y T P M E _ ...

Page 118: ...e and easy troubleshooting as described in this service manual DVM Digital Volt Meter Standard Indicates more than 3 digits Cleaning Equipments Standard An IPA Isopropyl Alcohol dry wipe tissue or a gentle neutral detergent and lint free cloth Driver Standard type type M3 long M3 short M2 long M2 short Vacuum Cleaner Tweezers Standard For general home use small type Spring Hook Standard For genera...

Page 119: ...ting systems running on them The BOOTP servers assign the IP address from a pool of addresses to each client BOOTP enables diskless workstation computers to obtain an IP address prior to loading any advanced operating system CCD Charge Coupled Device CCD is a hardware which enables the scan job CCD Locking mechanism is also used to hold the CCD module to prevent any damage when you move the machin...

Page 120: ...f external behavior which is in contrast to simulation which concerns an abstract model of the system being simulated often considering its internal state Ethernet Ethernet is a frame based computer networking technology for local area networks LANs It defines wiring and signaling for the physical layer and frame formats and protocols for the media access control MAC data link layer of the OSI mod...

Page 121: ...t produces world wide industrial and commercial standards ITU T The International Telecommunication Union is an international organization established to standardize and regulate international radio and telecommunications Its main tasks include standardization allocation of the radio spectrum and organizing interconnection arrangements between different countries to allow international phone calls...

Page 122: ...come an industry standard Originally developed for early inkjet printers PCL has been released in varying levels for thermal dot matrix printer and laser printers PDF Portable Document Format PDF is a proprietary file format developed by Adobe Systems for representing two dimensional documents in a device independent and resolution independent format PostScript PS PostScript PS is a page descripti...

Page 123: ...N compliant program a scan can be initiated from within the program It is an image capture API for Microsoft Windows and Apple Macintosh operating systems UNC Path Uniform Naming Convention UNC is a standard way to access network shares in Window NT and other Microsoft products The format of a UNC path is servername sharename Additional directory URL Uniform Resource Locator URL is the global addr...

Page 124: ...nection easily without a computer XPS XML Paper Specification XPS is a specification for a Page Description Language PDL and a new document format which has benefits for portable document and electronic document developed by Microsoft It is an XML based specification based on a new print path and a vector based device independent document format 6 7 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 125: ...ference Information 6 3 The Sample Pattern for the Test The life of the toner cartridge and the printing speed are measured using the pattern shown below Copyright 1995 2012 SAMSUNG All rights reserved 6 8 ...

Page 126: ...ilated and away from direct sunlight or sources of heat cold and humidity Do not set the machine close to the edge of your desk or table Clearance space Front 482 6 mm enough space so that the paper tray can be removed Back 100 mm enough space for ventilation Right 100 mm enough space for ventilation Left 100 mm enough space for ventilation 6 9 Copyright 1995 2012 SAMSUNG All rights reserved ...

Page 127: ...apan https gspn2 samsungcsportal com N America S America https gspn3 samsungcsportal com 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 2012 Samsung Electronics Co Ltd All rights reserved Printed in Korea Code No ...

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