Samsung SF-76x series Service Manual
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Samsung SF-76x series Service Manual

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SERVICE
Mono Laser MFP
Refer to the service manual in the GSPN (see the rear cover) for more information.
Mono Laser MFP
SF-76x series
SF-760P / 761 /761P
MANUAL
1. Precautions
2. Product spec and feature
3. Disassembly and Reassembly
4. Alignment and Troubleshooting
5. System Diagram
6. Reference Information
Contents

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Summary of Contents for Samsung SF-76x series

  • Page 1 Mono Laser MFP SF-76x series SF-760P / 761 /761P SERVICE MANUAL Mono Laser MFP Contents 1. Precautions 2. Product spec and feature 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: Table Of Contents

    LSU (Laser Scanner Unit)................2 − 19 2.2.4.6. Toner Cartridge..................... 2 − 20 2.2.5. Hardware configuration ....................2 − 21 2.2.5.1. Main board ....................2 − 22 2.2.5.2. OPE board ....................2 − 24 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 3 3.3.17. Feed Sensor PBA ......................3 − 16 3.3.18. Pick up roller ......................3 − 16 3.3.19. Motor........................3 − 17 3.3.20. Transfer roller......................3 − 18 Alignment and Troubleshooting ......................4 − 1 4.1. Alignment and Adjustments....................... 4 − 1 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 4 Periodic Defective Image ....................4 − 8 4.1.6. Useful management tools ....................4 − 9 4.1.6.1. Using Samsung Easy Printer Manager (Windows and Macintosh only) ....4 − 9 4.1.6.2. Using Samsung Printer Status (Windows only) ........... 4 − 11 4.1.6.3.

  • Page 5: Precautions

    High voltages and lasers inside this product are dangerous. This product should only be serviced by a factory trained service technician. 2) Use only Samsung replacement parts. There are no user serviceable parts inside the product. Do not make any unauthorized changes or additions to the product as these could cause the product to malfunctions and create an electric shocks or fire hazards.

  • Page 6: Caution For Safety

    Take care not to cut or damage the power cable or plugs when moving the machine. 9) Use caution during thunder or lightning storms. Samsung recommends that this machine be disconnected from the power source when such weather conditions are expected. Do not touch the machine or the power cord if it is still connected to the wall socket in these weather conditions.

  • Page 7: Handling Precautions

    1.2.4. Assembly and Disassembly precautions 1) Replace parts carefully and always use Samsung parts. Take care to note the exact location of parts and also cable routing before dismantling any part of the machine. Ensure all parts and cables are replaced correctly. Please carry out the following procedures before dismantling the product or replacing any parts.

  • Page 8: Disregarding This Warning May Cause Bodily Injury

    5) Do not install the printer on a sloping or unstable surface. After installation, double check that the printer is stable. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 9: Esd Precautions

    9) Minimize bodily motions when handling unpackaged replacement ESDs. Normal motions, such as the brushing together of clothing fabric and lifting one’s foot from a carpeted floor, can generate static electricity sufficient to damage an ESD. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 10: Product Spec And Feature

    Engine Speed Duplex Manual Duplex Warmup time From Sleep Less than 30 seconds From Ready Less than 8.5 seconds FPOT From Sleep Less than 15.5 seconds Resolution Up to 1,200 x 1,200 dpi effective output Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 11: Copier

    Original Type Factory Default Text/Photo Max. Original Legal (8.5" x 14") size Multi Copy 1~99 Automatic Paper Selection Manual Paper Selection Duplex Copy Darkness Control 11 Levels Basic Copy Reduce & Enlarge 25% to 400% Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 12: Scan Specification

    Effective Scan Length 348 mm (13.7") Color Internal: 16 bit x 3, External : 8 bit x 3 Scan Depth 1 bit for Lineart & Halftone • Mono 8 bits for Gray scale • Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 13: Fax

    Yes (China Only) On hook Dial Search Yes (Phone Book) Speed Dial 200 locations Group Dial 100 Groups TAD I/F Telephone Features Tone/Pulse Pause Auto Redial Last Number Redial Caller ID External Phone Interface Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 14: Controller And Software

    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 ~ 10.7 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 15: Paper Handling

    2.1.1.7. Consumables Item Specification Toner Cartridge Part name MLT-D101S Average Cartridge Yield 1,500 standard pages Average yield • (Ships with 700 pages Starter Toner Cartridge) NOTE Declared yield value in accordance with ISO/IEC 19752. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 16: Maintenance Parts

    Operation 10 ~ 32 °C (50 ~ 90 °F) Humidity Operation 20 ~ 80% RH 110 volt models AC 110 - 127 V Power rating ** 220 volt models AC 220 - 240 V Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 17: Accessories

    Power cord Quick installation guide Software CD The software CD contains the printer drivers and software applications. Misc. accessories Miscellaneous accessories included with your machine may vary by country of purchase and specific model. Handset Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 18: Model Comparison Table

    64 MB Emulation Input 150 Bin 250 CST 150 Bin Paper Capacity Output 100 sheet 50 sheet 100 sheet Noise 50 dBA 49 dBA 51 dBA Toner Cartridge 1.5K (0.7K) 1.5K/2,5K (1K) 1.6K (0.7K) Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 19: System Overview

    Document feeder width guides One-touch dial Document feeder input tray Control panel Document feeder Top cover Paper width guides Inner cover Tray Toner cartridge Output tray Handset Output support Scan unit Document feeder output tray Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-10...

  • Page 20: Rear View

    This illustration may differ from your machine depending on your model. There are various types of machine. • Some features and optional goods may not be available depending on model or country. Extension telephone socket (EXT) Telephone line socket (Line) Power receptacle 2-11 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 21: Paper Path

    2. Product spec and feature 2.2.3. Paper Path The following diagram displays the path the paper follows during the printing process. [ADF] [Engine] Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-12...

  • Page 22: System Layout

    SMPS/HVPS board, OPE board, PC interface. Pinch roller ADF upper frame White roller Rear stacker ADF lower frame Scan sensor lever ADF roller Doc sensor lever CIS unit Guide-Doc L,R 2-13 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 23 2. Product spec and feature Exit roller Feed roller ADF stacker TX Pick up roller Exit roller1 Plate-Bottom Fuser unit Toner cartridge Transfer roller Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-14...

  • Page 24: Feeding Part

    Paper width guide 2 Tray 2) Pick-up roller It has functions such as a paper pickup function, driving control function, paper feeding function, and removing electronic static function. Pick up roller is driven by clutch. 2-15 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 25: Transfer Roller

    A step motor for driving is assembled to the left frame. • Driving Frequency: Step Motor 810 PPS (1013 rpm) • It is a power delivery unit by gearing: Step Motor → Pick-up/ Feeder/ OPC/ Fuser/ Exit Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-16...

  • Page 26: Fuser Unit

    5) Halogen Lamp • Voltage : 120 V (115 ± 5 %) / 220 V : 230 ± 5 % • Capacity : 850 Watt ± 25 W 2-17 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 27 A fuser power is cut off when a front cover is opened. Maintain a temperature of fuser cover’s surface under 80°C for user, and attach a caution label at where customer can see easily when customer open a rear cover. Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-18...

  • Page 28: Lsu (Laser Scanner Unit)

    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 side of the polygon mirror is one line for scanning. 2-19 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 29: Toner Cartridge

    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 Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-20...

  • Page 30: Hardware Configuration

    The main board is adopted 433 MHz C3N CPU that is integrated with engine controller, video controller, SDRAM, Flash ROM. It uses SDRAM and Flash ROM inside the ASIC chip. 2-21 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 31: Main Board

    Chorus3–Next(C3N) chip is adopted as the main processor. Its process speed is 433 MHz. It is integrated engine controller, video controller, scan controller. DDR2 64MB is adopted for high speed data processing. Boot has 8 MB SPI + 8 MB SPI. [Main board diagram] Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-22...
  • Page 32 SMPS/HVPS interface connector Fax board interface connector Sensor connector Pick up connector USB device connector CIS interface connector Fuser thermistor interface connector Scan motor connector • Information Part code : JC92–02465A Part name : PBA-MAN 2-23 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 33: Ope Board

    LED, Power LED, WPS LED, 16x2 Line LCD. OPE communicates with main controller via UART. The power LED is controlled by the main board. • OPE board diagram • OPE board image • Information Part code : JC92–02416A Part name : PBA-OPE • Connection Interface connector to main board Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-24...

  • Page 34: Fax Board

    Fax board controls the fax sending and receiving. The Connexant DAA (Data Access Arrangement) solution is applied to this board. It consists of three chip solutions : CX82500(SFM336), CX20493(LSD), CX20437(Codec) • Information Part Code : JC92–01746D/E Part Name : PBA-LIU • Connection Interface connector to main controller Speaker interface 2-25 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 35: Smps/Hvps Board

    Output Power: 43.2W ▪ DC 24V : 43.2W • Information 110V 220V Part Code JC44–00208A JC44–00209A PBA name SMPS/HVPS V1 SMPS/HVPS V2 • Connection Main Board interface connector AC_Inlet COVER OPEN/CLOSE Switch FUSER_AC Output Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-26...
  • Page 36 HVPS PWM_THV HVPS VPP_DEV_AC HVPS Common Ground +24VS1 Relay, Fuser Common Ground Common Ground +24V SMPS RELAY_ON AC RELAY ON (ACTIVE HIGH) +24V SMPS Common Ground +24V SMPS FUSER_ON FUSER_ON (ACTIVE HIGH) 2-27 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 37: Electrical Parts Location

    Paper detection Photo interrupter (Hook sensor) PBA Hook Handset detection Photo interrupter (Feed sensor) PBA sensor Paper detection Photo interrupter (Width sensor) PBA sensor Paper detection Switch Front cover SMPS/HVPS board Cover Open detection Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-28...
  • Page 38 2. Product spec and feature 2) Motor, Clutch Description ADF motor Speaker Main motor Pick up Clutch 2-29 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 39: Engine F/W Contol Algorithm

    AD converter. The voltage value for impressing to the transfer roller is decided by the changed value. Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-30...

  • Page 40: Fusing

    Error Recovery: If the LReady or Hsync error happens, the paper is exited before the error code is initiated. The engine mode is changed to recovery mode and the engine informs the main system of the engine mode. The engine rechecks the LSU error, if the error does not reoccur printing is resumed. 2-31 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 41: Software Descriptions

    Host. 2) Kernel controls and manage the whole procedure including Control flow and Printing Job before transferring to Engine system. Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-32...

  • Page 42: Disassembly And Reassembly

    3.1.1. Precautions when assembling and disassembling • Use only approved Samsung spare parts. Ensure that part number, product name, any voltage, current or temperature rating are correct. Failure to do so could result in damage to the machine, circuit overload, fire or electric shock.

  • Page 43: Releasing Plastic Latches

    Many of the parts are held in place with plastic latches. The latches break easily; release them carefully. To remove such parts, press the hook end of the latch away from the part to which it is latched. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 44: Screws Used In The Printer

    6003-000196 SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A FRAME-LOWER 6003-000269 DRIVE ADF SCREW-TAPTYPE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,- 6003-000196 ADF FRAME-OPE SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A ADF FRAME-OPE 6003-000282 SCREW-TAPTYPE;BH,+,-,B,M3,L8,ZPC(BLK),SWRCH18A,- LOWER ADF FRAME-OPE 6003-000196 SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A UPPER 6003-000196 CRADLE SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 6003-000196 SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A MAINLINE 6003-000269 SCREW-TAPTYPE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,- Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 45: Replacing The Main Svc Parts

    3.3. Replacing the Main SVC parts 3.3.1. ADF Frame 1. Remove the handset and cradle. 3. Open the ADF Frame. Release both stoppers from the ADF Frame. 2. Unplug the curl cord. 4. Remove the right cover. Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 46 3. Disassembly and Reassembly 5. Remove 1 screw for the ground wire. 7. Lift and release the ADF Frame. 6. Unplug the connectors connecting ADF Frame. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 47: Stacker

    3. Disassembly and Reassembly 3.3.2. Stacker 1. Release the front stacker. 2. Pull up and release the rear stacker. 3.3.3. White roller 1. Open the OPE unit. Pull up the right lever. And release the white roller. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 48: Ope Board

    1. Release the linker from the left of the OPE unit. 4. Remove the OPE upper cover. 2. Release the left of the OPE unit from ADF frame. 5. Unplug the connector. Remove 2 screws. And release the OPE board. 3. Remove 2 screws. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 49: Adf Roller

    3. Release the ADF frame upper after removing 4 screws. 4. Remove 2 screws securing the ADF drive unit. 2. Release the ADF top cover. 5. Pull the roller-exit to the right. Release the ADF roller. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 50: Cis Unit

    3. Disassembly and Reassembly 3.3.6. CIS unit 1. Release the CIS unit. 3.3.7. Main board 1. Remove the right cover. 2. Unplug all connectors on main board. Remove 4 screws. And release the main board. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 51: Fax Board

    3.3.8. Fax board 1. Remove the right cover. 2. Unplug all connectors on fax board. Remove 4 screws. And release the fax board with its cover. 3.3.9. Left Cover 1. Remove the left cover. Copyright© 1995-2011 SAMSUNG. All rights reserved. 3-10...

  • Page 52: Front Cover

    3. Disassembly and Reassembly 3.3.10. Front cover 1. Remove the cover-cassette. 3. Release the front cover after removing 2 screws. 2. Remove 2 screws. 3-11 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 53: Middle Cover

    4. Remove the cover-open. 2. Release the shield-controller after removing 4 screws. 5. Remove 2 screws. 3. Release both jam levers from the jam cover. 6. Lift up and release the middle cover. Copyright© 1995-2011 SAMSUNG. All rights reserved. 3-12...

  • Page 54: Rear Cover

    3.3.13. SMPS/HVPS board 1. Remove the SHEET-MAIN PCB. 3. Unplug the fuser connector. Release the SMPS/HVPS board after removing 8 screws. HEET-MAIN P CB 2. Remove the SMPS cover after removing 2 screws. 3-13 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 55: Fuser Unit

    3. Disassembly and Reassembly 3.3.14. Fuser unit 1. Unplug the fuser connector. 2. Release the fuser unit after removing 3 screws. 3.3.15. Drive Unit 1. Release the Drive Unit after removing 4 screws. Copyright© 1995-2011 SAMSUNG. All rights reserved. 3-14...

  • Page 56: Lsu

    4. Unplug 2 flat cables. Remove 3 screws. And release the LSU. 2. Remove 2 screws securing the LSU cover. 3. Remove 2 screws securing the LSU cover. Unplug the motor connector. And release the LSU cover. 3-15 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 57: Feed Sensor Pba

    1. Remove the rear cover. (Refer to 3.3.12) 2. Unplug the connector after releasing the Feed Sensor PBA. 3.3.18. Pick up roller 1. Remove 2 screws from the bottom. 2. Release the pick up roller. Copyright© 1995-2011 SAMSUNG. All rights reserved. 3-16...

  • Page 58: Motor

    3. Disassembly and Reassembly 3.3.19. Motor 1. Release the left frame after removing 6 screws. 2. Release the motor after removing 2 screws. 3-17 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 59: Transfer Roller

    ADF Frame. And release the ADF Frame. (refer to 3.3.1) 7. When reassembling it, push the bush-TR in two direction like below picture. 4. Remove 2 screws from the top of the middle cover. Copyright© 1995-2011 SAMSUNG. All rights reserved. 3-18...

  • Page 60: Alignment And Troubleshooting

    Scrolls through the options available in the selected menu and increases or decreases values. Confirms the selection on the display screen. Back Sends you back to the upper menu level. Status LED Indicates the status of your machine. Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 61 Display screen Shows the current status and displays prompts during an operation. Scan Switches to Scan mode. Copy Switches to Copy mode. Switches to Fax mode. Numeric Keypad Dials a number or enters alphanumeric characters Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 62: Understanding The Status Led

    ISO/ IEC 19752. The number of pages may be affected by operating environment, percentage of image area, printing interval, graphics, media and media size. Some amount of toner may remain in the cartridge even when red LED is on and the printer stops printing. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 63: Jam Removal

    3) Pull the document gently out of the document feeder. 2) Open the control panel by gripping it on the bottom edge and pulling it. 4) Close the control panel. Then load the documents back into the document feeder. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 64: Inside The Machine

    Before opening the top cover, close the output tray first. 1) Open the top cover. If you do not see the paper in this area, stop and go to next step. 4) Open the middle cover. 2) Open the jam cover. Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 65 5) Remove the toner cartridge. 8) Close the middle cover and top cover. 6) Remove the jammed paper by gently pulling it straight 9) Open the output tray and install the stacker. out. 7) Reinstall the toner cartridge. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 66: Useful Menu Item For Service

    You can set the altitude value from Device Settings or Machine section in Printer Settings Utility program. • For Windows and Macintosh, open the Samsung Easy Printer Manager program. Click Device Settings > Link to Program button, you can configure various machine settings.

  • Page 67: Periodic Defective Image

    White and Black Spots Developing Roller 33.7 mm White spot, Horizontal black band Supply Roller 78.2 mm Periodic Band by little difference of density Transfer Roller 39.3 mm Ghost, Damaged image by abnormal Transfer roller transfer Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 68: Useful Management Tools

    • For Macintosh, Open the Applications folder > Samsung folder > Samsung Easy Printer Manager. The Samsung Easy Printer Manager interface is comprised of various basic sections as described in the table that follows: NOTE The screenshot may differ depending on operating system you are using.

  • Page 69: Advanced Settings User Interface Overview

    Job Accounting Provides querying of quota information of the specified job accounting user. This quota information can be created and applied to devices by job accounting software such as SyncThru™ or CounThru™ admin software. Copyright© 1995-2011 SAMSUNG. All rights reserved. 4-10...

  • Page 70: Using Samsung Printer Status (Windows Only)

    Check the operating system(s) that are compatible with your machine. Samsung Printer Status overview If an error occurs while operating, you can check the error from the Samsung Printer Status. Samsung Printer Status is installed automatically when you install the machine software.

  • Page 71: Using Smart Panel (Linux Only)

    4. Alignment and Troubleshooting 4.1.6.3. Using Smart Panel (Linux only) Smart Panel is a program that monitors and informs you of the machine’s status, and allows you to customize the machine’s settings. You can download Smart Panel from the Samsung website. NOTE •...

  • Page 72: Updating Firmware

    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 is completed, machine is automatically re-booting. 4-13 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 73: Tech Mode

    Wrap Jam Clear Yes, No Machine Test Switch Test Modem Test Dram Test Rom Test Shading Test Scan Aging Report All Report Protocol Supplies Info Configuration Error Info Usage Counter Component Check Fax Options Copyright© 1995-2011 SAMSUNG. All rights reserved. 4-14...
  • Page 74 This function is for monitoring of the engine status. If you perform this function, at printing, the setting value for engine is shown on the bottom of the printed page. • Wrap Jam Clear This function is for canceling M2–1317 error code. 4-15 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 75 Component Check Report shows the operation procedure of the machine test in tech mode. f) EDC mode • NVM Initialize This menu is to initialize the NVM value. • NVM Read/Write This menu can change a configuration value for engine firmware. Copyright© 1995-2011 SAMSUNG. All rights reserved. 4-16...
  • Page 76 LSU Motor1 Run 110-0000 Detects if LSU motor1 runs at normal speed. Input High[Low] Ready 110-0060 LSU Motor1 Run LSU Motor1 On/Off Output On[Off] 110-0110 LSU LD Power4 LSU LD4 Power On/Off (black) Output On[Off] 4-17 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 77: Troubleshooting

    - Main PBA Red LED on / See the troubleshooting OPE LED Error message for error code Green OK? is displayed. Print (test page) Printing Refer to "Solution quality is of Image Problem" nomal? Copyright© 1995-2011 SAMSUNG. All rights reserved. 4-18...

  • Page 78: Basic Check List

    Refer to image quality problem section. 6) Check consumables (toner etc.). • Using the keys print the Test Pattern. › Expected life of various consumable parts, compare this with the figures printed and replace as required 4-19 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 79: Error Code And Troubleshooting

    Page 4–25 U2-1113 Error #U2-1113 Turn off then on Page 4–25 U3-3313 Document jam. Remove jam Page 4–26 U3-3314 Document jam. Remove jam Page 4–26 U3-4110 Door of scanner is open. Page 4–26 Copyright© 1995-2011 SAMSUNG. All rights reserved. 4-20...
  • Page 80 And reinstall the toner cartridge. 3) If the problem persists, check that the CRUM contact area is contaminated. Clean it. 4) If the problem persists, replace the toner cartridge with new one. 4-21 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 81 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 Samsung genuine toner cartridge, replace with new one. ► Error Code M2–1110 M2–1116...
  • Page 82 2) Remove the right cover. Check if the connection between the main board and SMPS/HVPS board is correct. 3) Check if the cover open switch on SMPS/HVPS board is operated properly. If it is defective, replace the SMPS/HVPS board. 4-23 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 83 Check if the thermistor is twisted or contaminated. 3) After confirming continuity in the fuser connector and the problem still exists; order an SMPS/HVPS and Fuser Unit and install as is necessary. Copyright© 1995-2011 SAMSUNG. All rights reserved. 4-24...
  • Page 84 2) If it is OK, check that the LSU harness on LSU board is connected properly. (picture- 2,3) 3) Check if the LSU harness is defective. (picture- 4,5) 4) If the problem persists, replace the LSU. 5) If the problem persists after replacing LSU, replace the main board. 4-25 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 85 5) If the problem persists, replace the ADF unit. ► Error Code U3–4110 ► Error message Scanner Door Open ► Symptom ADF unit is opened. ► Troubleshooting method 1) Close the ADF unit. Copyright© 1995-2011 SAMSUNG. All rights reserved. 4-26...

  • Page 86: Image Quality Problem

    Remove the foreign matter of the exposure window. cartridge frame. If the fuser is defective, voids occur periodically at the top Open the rear cover. Reinstall the fuser unit. of a black image. 4-27 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 87 If a black image is partially broken, the transfer voltage is • abnormal or the transfer roller’s life has expired. Clean the inside of the set against the paper particles • and foreign matter in order not to cause the trouble. Copyright© 1995-2011 SAMSUNG. All rights reserved. 4-28...
  • Page 88 1) Remove the transfer roller. transfer roller is not even. 2) Check if the transfer roller is defective. The springs are damaged. • 3) Replace the transfer roller. The transfer roller is improperly installed. • 4-29 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 89 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. Copyright© 1995-2011 SAMSUNG. All rights reserved. 4-30...
  • Page 90 Reinstall the toner cartridge. Print 10 sample pages for test. 2) If the problem persists, replace the toner cartridge. The contact between toner cartridge and transfer roller is Check if the toner cartridge and transfer roller are installed bad. properly. 4-31 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 91: Other Errors

    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© 1995-2011 SAMSUNG. All rights reserved. 4-32...

  • Page 92: System Diagram

    5. System Diagram 5. System Diagram 5.1. Block Diagram & 64MB t s i t i n t d i Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 93: Connection Diagram

    5. System Diagram 5.2. Connection Diagram & t s i t u l t i n Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 94: Reference Information

    M2 short). Tweezers Spring Hook Standard : For general home use, small type. Standard : For general use Cotton Swab Software (Driver) installation CD ROM Standard : For general home use, for medical service. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 95: Glossary

    IP addresses to client hosts. Dual Inline Memory Module (DIMM), a small circuit board that holds memory. DIMM stores all DIMM the data within the machine like printing data, received fax data. Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 96 Hard Disk Drive (HDD), commonly referred to as a hard drive or hard disk, is a non-volatile storage device which stores digitally-encoded data on rapidly rotating platters with magnetic surfaces. Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 97 As most faxes consist mostly of white space, this minimizes the transmission time of most faxes. Modified Modified READ (MMR) is a compression method recommended by ITU-T T.6. Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 98 Resolution resolution. Server Message Block (SMB) is a network protocol mainly applied to share files, printers, serial ports, and miscellaneous communications between nodes on a network. It also provides an authenticated Interprocess communication mechanism. Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 99 (WAP) and any wireless laptop or WPA-PSK desktop devices. WPA-PSK generates a unique key for each session between a wireless client and the associated WAP for more advanced security. Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 100 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. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 101: The Sample Pattern For The Test

    6. Reference 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© 1995-2011 SAMSUNG. All rights reserved.

  • Page 102: Selecting A Location

    Front: 326 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) Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 103 CIS, Africa E.Asia, W.Asia, https://gspn2.samsungcsportal.com China, Japan N.America, S.America https://gspn3.samsungcsportal.com This Service Manual is a property of Samsung Electronics © 2011 Samsung Electronics Co.,Ltd. Co.,Ltd. All rights reserved. Any unauthorized use of Manual can be punished under Printed in Korea applicable International and/or domestic law.

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