Samsung SCX-340x series Service Manual
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Samsung SCX-340x series Service Manual

Mono laser mfp
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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
SCX-340x series
SCX-340x / 340xF / 340xW /
340xFW
MANUAL
1. Precautions
2. Product specification and description
3. Disassembly and Reassembly
4. Alignment and Troubleshooting
5. System Diagram
6. Reference Information
Contents

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Summary of Contents for Samsung SCX-340x series

  • Page 1 Mono Laser MFP SCX-340x series SCX-340x / 340xF / 340xW / 340xFW SERVICE MANUAL 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: Table Of Contents

    2.2.4.4. Fuser Unit....................2 − 19 2.2.4.5. LSU (Laser Scanner Unit)................2 − 21 2.2.4.6. Toner Cartridge..................... 2 − 22 2.2.5. Hardware configuration ....................2 − 23 2.2.5.1. Main board ....................2 − 25 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 3 3.3.14. Drive Unit........................3 − 14 3.3.15. LSU.......................... 3 − 15 3.3.16. Feed Sensor PBA ......................3 − 16 3.3.17. Pick up roller ......................3 − 16 3.3.18. Motor........................3 − 17 3.3.19. Transfer roller......................3 − 18 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 4 Periodic Defective Image ....................4 − 13 4.1.6. Useful management tools ....................4 − 14 4.1.6.1. Using Samsung Easy Printer Manager (Windows and Macintosh only) ....4 − 14 4.1.6.2. Using Samsung Printer Status (Windows only) ........... 4 − 16 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 Specification And Description

    Up to 20 ppm in A4 (21 ppm in Letter) 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 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 11: Copier

    Factory Default Text/Photo Platen Max. Original Size Legal (8.5" x 14") 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

    1 bit for Lineart & Halftone • Mono 8 bits for Gray scale • Capacity 40 sheets @ 75 gsm • Width : 142 ~ 216 mm Document Size • Length : 148 ~ 356 mm Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 13: Fax

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

  • Page 14: Controller And Software

    2. Product specification and description 2.1.2.5. Controller and Software Item Specification Processor 433 MHz SCX-340x/ 340xF/ 340xW : 64 MB • Std. SCX-340xFW : 128 MB • Memory Memory expansion Printer Languages Fonts Windows Fonts Default Driver Install Windows 2000/ XP(32/64bits)/ Vista(32/64bits)/ 2003 Server(32/64bits)/...
  • Page 15 (SCX–340xW/ FW Supporting OS Same as wired network only) Samsung Easy Printer For Windows and Macintosh Manager Application For Linux Smart Panel SyncThru Web Service 2.0 Network Management Parallel Interface High speed USB 2.0 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 16: Paper Handling

    Sensing Optional Cassette Tray Face-Down : 100 sheets @ 80 g/m² Capacity • Output Stacking Output Full sensing Duplex Supporting 3 mm (0.12") from edge (Top, Bottom, Left, Right) Printable Area Non-Printable Area • Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 17: Consumables

    JC97-03959A (ADF Unit) 20,000 Pages 2.1.2.9. Reliability and Service Items Specification Printing Volume (SET AMPV) 75 sheets/month MPBF 20,000 sheets MTTR 30 min. SET Life Cycle 30,000 sheets or 5 years (whichever comes first) Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 18: Environment

    2. Product specification and description 2.1.2.10. Environment Item Specification • SCX-340x/ 340xW : 389 x 274 x 249 mm (15.3 x 10.8 x 9.8 inches) • SCX-340xF/ 340xFW : 402 x 293 x 296 mm (15.8 x Dimension (W x D x H) Machine 11.5 x 11.7 inches)

  • Page 19: Accessories

    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 Handset model only Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-10...

  • Page 20: Model Comparison Table

    150 Bin 150 CST 150 Bin Paper Output 100 sheet 50 sheet 100 sheet Capacity 40 sheet 35 sheet Noise 50 dBA 49 dBA 51 dBA Toner Cartridge 1.5K (0.7K) 1.5K (0.7K) 1.6K (0.7K) 2-11 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 21: System Overview

    Some features and optional goods may not be available depending on model or country. Type A Scanner lid Scanner glass Control panel Scan unit Tray Inner cover Tray handle Toner cartridge Output support Output tray Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-12...
  • Page 22 Document feeder output support Document feeder input support Control panel Document feeder input tray Handle Handset* Tray Scan unit Tray handle Inner cover Output support Toner cartridge Output tray * Handset model (SCX-340xFH) only 2-13 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 23: Rear View

    Some features and optional goods may not be available depending on model or country. Type A USB port Power receptacle Type B USB port Telephone line socket (Line) Network port Power receptacle Extension telephone socket (EXT) Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-14...

  • Page 24: Paper Path

    2. Product specification and description 2.2.3. Paper Path The following diagram displays the path the paper follows during the printing process. [ADF] [Engine] 2-15 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 25: System Layout

    Pick up unit, Fuser, Bin-tray. The hardware parts consists of the main board, SMPS/HVPS board, OPE board, PC interface. Toner cartridge Plate-Bottom Fuser unit Pick up roller Exit roller1 Feed roller Transfer roller Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-16...

  • Page 26: Feeding Part

    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. 2-17 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 27: Transfer Roller

    Life Span : Print over 30,000 sheets (in 15~30°C) 2.2.4.3. Drive Unit In SCX-340x series, the driving device consists of OPC, Pick- up, Feed, Fuser, Gear- Train connected with Mounting member. A step motor for driving is assembled to the left frame.

  • Page 28: Fuser Unit

    5) Halogen Lamp • Voltage : 120 V (115 ± 5 %) / 220 V : 230 ± 5 % • Capacity : 850 Watt ± 25 W 2-19 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 29 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. 2-20...

  • Page 30: 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. 2-21 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 31: 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. 2-22...

  • Page 32: Hardware Configuration

    SCX-340x series has a system board of integrated engine controller and video controller. The engine controller controls all modules required to print, that is, LSU, HVPS/SMPS, Fuser, Motor etc. It communicates with the video control block inside CPU for printing. And it has the interface for all video sync signal to print out the video data.
  • Page 33 2. Product specification and description Circuit board locations The following diagrams show the locations of the printer circuit boards: Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-24...

  • Page 34: Main Board

    DDR2 128MB is adopted for high speed data processing. Boot has 8 MB SPI + 8 MB SPI. USB is the embedded type and wired network supports 100M full duplex. [Main board diagram] 2-25 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 35 Pick up connector USB device connector Fuser thermistor interface connector Scan motor connector Scan home sensor connector CIS interface connector • Information Part code : JC92–02433A~G (SCX-340x) / JC92–02444A~G (SCX-340xW) Part name : PBA-MAN Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-26...
  • Page 36 USB device connector Fuser thermistor interface connector Scan motor connector ADF Module interface connector Scan home sensor connector CIS interface connector • Information Part code : JC92–02434A (SCX-340xF) / JC92–02434B (SCX-340xFW) Part name : PBA-MAN 2-27 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 37: Ope Board

    LED. 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 : JC92–02415A Part name : PBA-OPE • Connection Interface connector to main board Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-28...
  • Page 38 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 : JC92–02404A Part name : PBA-OPE • Connection Interface connector to main board 2-29 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 39: Fax Board

    The Wireless LAN Module supports 802.11b/g/n. It communicates with video controller via SPI. [WLAN board image] • Information Part Code : JC92–02402A PBA name : PBA-WNPC • Connection Interface connector to main board (JC39-01565A , FFC CABLE-WLAN) Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-30...

  • Page 40: Smps/Hvps Board

    2. Product specification and description 2.2.5.5. SMPS/HVPS board SCX-340x series has a power board of integrated SMPS and HVPS. The SMPS (Switching Mode Power Supply) Board supplies electric power to the Main Board and other boards through a Main Controller. The voltage provided includes +24V from a 110V/220V power input.
  • Page 41 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) Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-32...

  • Page 42: Electrical Parts Location

    Photo interrupter (Home Position sensor) Main board CIS detection Switch Front Cover SMP/HVPS board Cover open detection Photo interrupter (width Sensor) Main board Paper detection Photo interrupter (Feed Sensor) Main board Paper detection 2-33 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 43 2. Product specification and description 2) Motor, Clutch Description ADF motor Scan motor Main motor Pick up Clutch Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-34...

  • Page 44: Engine F/W Contol Algorithm

    AD converter. The voltage value for impressing to the transfer roller is decided by the changed value. 2-35 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 45: 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. Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-36...

  • Page 46: Software Descriptions

    Host. 2) Kernel controls and manage the whole procedure including Control flow and Printing Job before transferring to Engine system. 2-37 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 47: Data And Control Flow

    1) Network Interface Card is that relay the communication between Host and kernel using various network protocol. 2) Kernel is that manages the flow control of emulation procedure, receiving data from Host or Network card and printing with engine & rendering job. Copyright© 1995-2011 SAMSUNG. All rights reserved. 2-38...
  • Page 48 Kernel receives this data from Host, and then select emulation fit to 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. 2-39 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 49: 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 50: 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 51: Screws Used In The Printer

    SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 6003-000196 HOLDER-OPE SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 6003-000196 SHILED-CONTROLLER SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 6003-000196 SPEAKER SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 6003-000196 WLAN SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 6003-000269 COVER-MIDDLE SCREW-TAPTYPE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,- 6003-000269 COVER-REAR SCREW-TAPTYPE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,- 6003-000269 FAX-PBA SCREW-TAPTYPE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,- 6003-000269 MAIN PBA SCREW-TAPTYPE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,- 6003-000269 SHIELD-CONTROLLER SCREW-TAPTYPE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,- Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 52: Replacing The Main Svc Parts

    The color of machine may differ from your machine depending on its model. 3.3.1. Right and Left cover 1. Open the Scanner. 3. Release the right cover. 4. Release the left cover. 2. Remove 2 screws from the rear. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 53: Scanner Unit

    4. Release the scanner hinge while pushing the platen bottom connecting it. 2. Unplug the connectors connecting the Scanner Unit on the Main board. 5. Lift up and release the Scanner Unit. 3. Open the Scanner Unit. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 54: Adf Unit

    3. Disassembly and Reassembly 3.3.3. ADF Unit 1. Remove the harness cover. Unplug the connector. And release the ADF Unit. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 55: Cis Unit

    2. Remove 4 screws from the bottom of the platen. 5. Release the Belt-Timing Gear. Remove 3 screws. And release the Scan Drive Unit. 3. Remove the platen upper from the platen lower. Belt-Timing Gear Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 56: Ope Unit

    4. Pull the OPE unit to the right and release it. 2. Remove the Holder-OPE. 5. Remove the OPE back cover after removing 4 screws. 3. Open up the OPE Unit. 6. Remove the OPE board after removing 1 screw. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 57: Front Cover

    3. Disassembly and Reassembly 3.3.6. Front Cover 1. Remove the Cover-Cassette. 3. Remove the front cover. 2. Remove 4 screws. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 58: Middle Cover

    1. Remove 2 screws from the front. 4. Release both jam levers from the jam cover. 2. Remove 2 screws from the top. 5. Lift up the middle cover after releasing the hooks. 3. Remove 1 screw. 3-10 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 59: Rear Cover

    1. Release the connectors from the rear cover. 2. Release the rear cover after 3 screws. 3.3.9. Main board 1. Unplug all connectors on the main board. 2. Remove 4 screws. 3. Release the main board. Copyright© 1995-2011 SAMSUNG. All rights reserved. 3-11...

  • Page 60: Wlan Board

    3. Release the WLAN board. 2. Remove 1 screw. 3.3.11. Fax board 1. Unplug the flat cable. Remove the fax cover after 2. Release the fax board after removing 2 screws. removing 2 screws. 3-12 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 61: Smps/Hvps Board

    1. Remove the main board and fax board. 4. Remove the SMPS cover. 2. Remove the shield-controller after removing 4 screws. 5. Release the SMPS/HVPS board after removing 8 screws. 3. Remove 1 screw securing the SMPS cover. Copyright© 1995-2011 SAMSUNG. All rights reserved. 3-13...

  • Page 62: Fuser Unit

    1. Remove the main board. (Refer to 3.3.8) 3. Release the fuser unit after removing 3 screws. 2. Unplug the fuser connector. 3.3.14. Drive Unit 1. Release the Drive Unit after removing 4 screws. 3-14 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 63: 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. Copyright© 1995-2011 SAMSUNG. All rights reserved. 3-15...

  • Page 64: Feed Sensor Pba

    1. Remove the rear cover. (Refer to 3.3.7) 2. Unplug the connector after releasing the Feed Sensor PBA. 3.3.17. Pick up roller 1. Remove 2 screws from the bottom. 2. Release the pick up roller. 3-16 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 65: Motor

    3. Disassembly and Reassembly 3.3.18. Motor 1. Release the left frame after removing 7 screws. 2. Release the motor after removing 2 screws. Copyright© 1995-2011 SAMSUNG. All rights reserved. 3-17...

  • Page 66: Transfer Roller

    Transfer roller from the front. 3. Unplug the connectors on main board. Release the scanner hinge. And release the scanner unit. (refer to 3.3.2) 6. When reassembling it, push the bush-TR in two direction like below picture. 3-18 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 67: Alignment And Troubleshooting

    This control panel may differ from your machine depending on its model. There are various types of control panels. SCX-340x, 340xW (3in1 model) Turn into eco mode to reduce toner consumption and paper usage. Configures the wireless network connection easily without a computer. Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 68 Start Starts a job. Status LED Indicates the status of your machine. Toner LED Shows the status of the toner. Display screen Shows the current status and displays prompts during an operation. Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 69 Turns the power on or off, or wakes up the machine from the power save mode. If you need to turn the machine off, press this button for more than three seconds. Switches to Fax mode. Copy Switches to Copy mode. Scan Switches to Scan mode. Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 70 Redials the last number in ready mode, or inserts a pause(-) into a fax number in Pause(-) edit mode. Address Book Allows you to store frequently used fax numbers or search for stored fax numbers. Display screen Shows the current status and displays prompts during an operation. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 71: Understanding The Status Led

    Prepare a new cartridge for replacement. You may temporarily increase the printing quality by redistributing the toner. Toner Orange A toner cartridge has almost reached its estimated cartridge life*. It is recommended to replace the toner cartridge All toner cartridges are at normal capacity. Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 72 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 73: Jam Removal

    Original paper jam in front of scanner 1) Open the document feeder cover. 3) Close the document feeder cover. 2) Gently remove the jammed paper from the document feeder. Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 74 2) Gently remove the jammed paper from the document feeder. 5) Grasp the misfeed paper, and remove the paper from the feed area by carefully pulling it. 3) Close the document feeder cover. 6) Close the document feeder. Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 75: Clearing Paper Jams

    To avoid tearing the paper, pull the jammed paper out slowly and gently. In Tray 1) Remove the jammed paper by gently pulling it straight out. Inside the machine 1) Open the scanner unit. 2) Open the jam cover. Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 76 If you do not see the paper in this area, stop and go to 4) Remove the jammed paper by gently pulling it straight next step. out. 7) Open the scanner unit. 8) Open the middle cover. 5) Close the fuser dummy cover. 4-10 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 77 4. Alignment and Troubleshooting 9) Remove the toner cartridge. 12) Close the middle cover. 10) Remove the jammed paper by gently pulling it straight 13) Close the scanner unit. out. 11) Reinstall the toner cartridge. Copyright© 1995-2011 SAMSUNG. All rights reserved. 4-11...

  • Page 78: 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 79: 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. 4-13...

  • Page 80: 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 81: 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. 4-15...

  • Page 82: 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 83: 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 84: Using Syncthru Web Service (Sws)

    2) Log-in Admin Mode. (ID: admin, PW: sec00000) 3) Select pages to check the configuration and customize the settings. CAUTION Please, change SWS Default ID and Password for system security in case of your first connection. 4-18 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 85 1) Click ‘Direct Print Configuration’ in the pop up windows when clicking ‘Direct Print’. 2) In the ‘Services’ Menu, check ‘Direct Print’. 1) Click ‘System Security’ in the ‘Security’ menu. 2) Select ‘Feature Management’ in the left frame. 3) In the ‘Services’ Menu, check ‘Direct Print’. Copyright© 1995-2011 SAMSUNG. All rights reserved. 4-19...

  • Page 86: 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. 4-20 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 87: Update The Firmware By Using The Network

    Firmware file to update Upgrade Procedure 1) Open the Web-browser and input IP address of machine. Click “Login”. 2) Log-in Admin Mode. (ID: admin, PW: sec00000) 3) Select Maintenance menu and click “upgrade wizard” Copyright© 1995-2011 SAMSUNG. All rights reserved. 4-21...
  • Page 88 4) Select firmware file using “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. 4-22 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 89: Tech Mode

    1) Press “Menu > # > 1 > 9 > 3 > 4” on the control panel continuously. 2) Press Menu. 3) Select “Tech Mode”. b) Tech mode menu NOTE This function does not supported for SCX-340x/SCX- 340xW Series. Depth 1 Depth 2 Depth 3 Data Setup...
  • Page 90 When the error rate is about exceed the set value, the Baud rate automatically adjusts to 2400 bps. This ensures that the error rate remains below the set value. You can select the rate between 5% and 10%. 4-24 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 91 Configuration report shows the status of the user-selectable options. You may print this list to confirm your changes after changing settings. This page provides useful information for service. • Error Info Error Information Report shows error records. Copyright© 1995-2011 SAMSUNG. All rights reserved. 4-25...
  • Page 92 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] 4-26 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 93: Tech Mode (3 In 1 Model)

    Print All Reports Shading is not work, just print out with current shading data • Exception Report is not printed • Executes Scanner Aging (If cancel button is pressed, then aging is finished) Copyright© 1995-2011 SAMSUNG. All rights reserved. 4-27...
  • Page 94 VENEZUELA SWEDEN CHILE AUSTRALIA NETHERLANDS MEXICO TAIWAN DENMARK ARGENTINA SINGAPORE BELGIUM PERU KOREA HUNGARY OMAN LUXEMBOURG POLAND BANGLADESH COLOMBIA CZECH KUWAIT SAUDIARABIA ROMANIA MOROCO ISRAEL BULGARIA ALGERIA IRAN IRELAND PAKISTAN URUGUAY GERMANY CHINA 4-28 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 95 [Execution Flow] 1) Select “LC” menu item in tech mode. 2) Machine will display current toner low setting value on 7 segment . 3) Select number using up/down key. You can select 1~30. Copyright© 1995-2011 SAMSUNG. All rights reserved. 4-29...

  • Page 96: Edc Program (3 In 1 Model Only)

    NOTE SCX-340x/340xW (3 in 1) model has not EDC menu in tech mode. Instead, there is a program for EDC function. The EDC program can check the machine status and perform various test to isolate the cause of a malfunction.

  • Page 97: 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. 4-31...

  • Page 98: 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 4-32 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 99: Error Code And Troubleshooting

    Messages appear on the control panel display to indicate the machine’s status or errors. • SCX-340x/ 340xW (3 in 1) These models have not the LCD. If machine has error, it is hard to know which kinds of error is happened.
  • Page 100 Error Message Troubleshooting U2-1113 Error #U2-1113 Turn off then on Page 4–41 U3-3313 Document jam. Remove jam Page 4–42 U3-3314 Document jam. Remove jam Page 4–42 U3-4110 Door of scanner is open. Page 4–42 4-34 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 101 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. Copyright© 1995-2011 SAMSUNG. All rights reserved. 4-35...
  • Page 102 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 103 2) If the connection is OK, replace the flat cable. 3) If the flat cable is OK, replace the WLAN board. 4) If the problem persists after replacing the WLAN board, replace the main board. Copyright© 1995-2011 SAMSUNG. All rights reserved. 4-37...
  • Page 104 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. 4-38 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 105 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© 1995-2011 SAMSUNG. All rights reserved. 4-39...
  • Page 106 ► Troubleshooting method Change the machine’s IP address. • Execute the Samsung Easy Printer Manager program. (Device setting — Network — IP address). Change the IP address. • In case of DHCP or Bootp, reboot the machine to receive a new IP address.
  • Page 107 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. Copyright© 1995-2011 SAMSUNG. All rights reserved. 4-41...
  • Page 108 ► Error Code U3–4110 ► Error message Scanner Door Open ► Symptom ADF or ADF top cover is opened. ► Troubleshooting method 1) Close the ADF unit. 2) Close the ADF top cover. 4-42 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 109: Image Quality Problem

    Some foreign substances are on the window of the toner Remove the foreign matter of the exposure window. cartridge frame. If the fuser is defective, voids occur periodically at the top Reinstall the fuser unit. of a black image. Copyright© 1995-2011 SAMSUNG. All rights reserved. 4-43...
  • Page 110 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. 4-44 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 111 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© 1995-2011 SAMSUNG. All rights reserved. 4-45...
  • Page 112 Does recycle paper be used? Use the proper papers. The life of the toner cartridge has been expired Replace the toner cartridge. The output from the HVPS is abnormal. Replace the HVPS board. 4-46 Copyright© 1995-2011 SAMSUNG. All rights reserved.
  • Page 113 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© 1995-2011 SAMSUNG. All rights reserved. 4-47...
  • Page 114 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. 4-48 Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 115: 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. 4-49...

  • Page 116: System Diagram

    5. System Diagram 5. System Diagram 5.1. Block Diagram (4 in 1) & t s i t i n t d i Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 117: Block Diagram (3 In 1)

    5. System Diagram 5.2. Block Diagram (3 in 1) & t s i t i n t d i Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 118: Connection Diagram (4 In 1)

    5. System Diagram 5.3. Connection Diagram (4 in 1) & t s i t u l t i n Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 119: Connection Diagram (3 In 1)

    5. System Diagram 5.4. Connection Diagram (3 in 1) & t s i t u l t i n Copyright© 1995-2011 SAMSUNG. All rights reserved.

  • Page 120: 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 121: 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 122 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 123 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 124 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 125 (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 126 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 127: 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 128: 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 129 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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