Page 1 Mono Laser MFP SCX-472x series SCX-4729FD/HD/FW, SCX-4728FD/HN, SCX-4701ND, SCX-4705ND, SCX-4726FN 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 ......................2 − 17 2.2.4.5. LSU (Laser Scanner Unit)................2 − 18 2.2.4.6. Toner Cartridge..................... 2 − 19 2.2.5. Hardware configuration ....................2 − 20 2.2.5.1. Main board ....................2 − 21 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 3 3.3.14. Bin-Full sensor ......................3 − 14 3.3.15. Main Drive Unit......................3 − 14 3.3.16. Pick up and Regi Clutch ....................3 − 15 3.3.17. Pick up and Forward roller .................... 3 − 16 Copyright© 1995-2012 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/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.
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 fi re 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© 1995-2012 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© 1995-2012 SAMSUNG. All rights reserved.
Page 10: Product Specification And Description
• 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 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 11: Specifications
Photo • Scan : 1,200 x 1,200 dpi (Optical 600 x 600 dpi) @ Platen, Printing : 1,200 x 1,200 dpi Original Type Factory Default Text/Photo Platen Max. Original Size Legal (8.5" x 14") Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 12: Scan Specification
1 bit for Lineart & Halftone • Mono 8 Bits for Gray scale • Capacity 40 sheets @ 80 gsm • Width : 142 ~ 216 mm Document Size • Length : 148 ~ 356 mm Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 13: Fax Specification
On hook Dial Search Yes (Phone Book) Speed Dial 200 locations Group Dial Group Dial TAD I/F Telephone Features Tone/Pulse Yes (Selectable in Tech Mode) Pause Auto Redial Last Number Redial Caller ID External Phone Interface Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 14: Controller And Software
Server(32/64bits)/ 2008 Server(32/64bits)/ 7(32/64bits)/ 2008 Server R2(64bits) Win 2000/ XP(32/64bits)/ 2003 Server(32/64bits)/ Compatibility Vista(32/64bits)/ 2008 Server(32/64bits)/ 7(32/64bits)/ 2008 Server R2(64bits) TWAIN ICDM Scan Driver Windows 2000/ XP(32/64bits)/ Vista(32/64bits)/ 2003 Supporting OS Server(32/64bits)/ 2008 Server(32/64bits)/ 7(32/64bits)/ 2008 Server R2(64bits) Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 15 Wireless Network (SCX–4729FW only) Supporting OS Same as wired network 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© 1995-2012 SAMSUNG. All rights reserved.
Page 16: Paper Handling
16~32 lb (60 to 120 g/m²) Envelop : 10 mm (0.4") from edge (Top, Bottom, Left, Right) • Non-Printable Printable Area Area Other Media : 4 mm (0.16") from edge (Top, Bottom, Left, Right) • Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 17: Consumables
Less than 6.5 W / Less than 0.8 W (Conformity to EPA) Dimension (W x D x H) 406 x 338 x 383 mm (16 x 13.3 x 15.1 inches) Weight SET (With Toner cartridge) 10.9 kg (24 lbs) Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 18: Maintenance Parts
JC91–01034A Fuser 100,000 pages • 110V JC91–01034B • Transfer Roller JC66-01218A 100,000 pages Pick-Up/ Forward JC93–00405A 50,000 pages Roller Assy Retard Roller JC90–01107A 50,000 pages 2.1.2.11. Options Item Specification Memory Second Cassette Hard Disk Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 19: Model Comparison Table
250 Bin, 10 MP Paper Output 120 sheet 100 sheet 100 sheet Capacity 40 sheet 30 sheet 35 sheet Duplex (Auto) 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: System Overview
Control Panel Scanner glass Paper level indicator Document feeder input tray Tray Paper width guide on a Document feeder Manual feeder tray Document feeder output support Front cover Handset (SCX-4729HD, 4728HN only) Output tray 2-11 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 21: Rear View
This illustration may differ from your machine depending on its model. • Some features and optional goods may not be available depending on model or country. Network port Power receptacle Rear cover Telephone line socket (Line) Extension telephone socket (EXT) USB port Power-switch Copyright© 1995-2012 SAMSUNG. All rights reserved. 2-12...
Page 22: Paper Path
2.2.3. Paper Path The following diagram displays the path the paper follows during the printing process. [ADF] [Engine] imple x P a th Du ple x P a th MP P a th 2-13 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 23: System Layout
Fuser, Cassette. The Hardware part consists of the main control board, power board, operation panel, PC Interface. [11] [10] Regi. Roller Scanner (Platen) Cassette Duplex Toner cartridge Fuser Exit Roller Pick-Up Roller Copyright© 1995-2012 SAMSUNG. All rights reserved. 2-14...
Page 24: Feeding Part
4) MP (Multi-Purpose) Tray The multi-purpose tray can hold special sizes and types of print material, such as postcards, note cards, and envelopes. 2-15 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 25: Transfer Roller
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: Fuser
A fuser power is cut off when a front cover is opened Maintain a temperature of fuser cover’s surface under 80 ℃ for user, and attach a caution label at where customer • can see easily when customer open a rear cover. 2-17 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 27: 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. Copyright© 1995-2012 SAMSUNG. All rights reserved. 2-18...
Page 28: Toner Cartridge
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. OPC Drum Supply Roller Charging Roller Waste Toner Tank Agitator Cleaning Blade Developing Roller 2-19 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 29: Hardware Configuration
The video controller receives print data from the host through network or USB Port. It takes this information and generates printable video bitmap data. The main board adopts the 533 MHz CPU, on board DDR2 memory (128MB) to perform printing jobs successfully. Copyright© 1995-2012 SAMSUNG. All rights reserved. 2-20...
Page 31 Scan home sensor connector Wireless module interface connector (SCX-4729FW only) ADF Module interface connector SMPS interface connector • Information Part Code : JC92–02409A (SCX-4729FD) / JC92–02413A (SCX-4729FW) / JC92–02593A (SCX-4726FN) PBA name : PBA-MAIN Copyright© 1995-2012 SAMSUNG. All rights reserved. 2-22...
Page 32: Ope Board
(S TM8S 103K3MAFTR) ANIMATION KEY INP UT WP S LCD DIS P LAY (VHC16232HR) [OPE board image] • Information Part Code : JC92–02404A PBA name : PBA OPE • Connection INTERFACE CONNECTOR TO MAIN CONTROLLER 2-23 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 33: Wireless Lan Board (Scx-4729Fw Only)
PCIe express Bridge chip, 256MB DDR2 memory, 4MB flash memory, and audio control chip. FCON is connected to the Con-Joint PBA. • Information Part Code : JC92–01746D/E PBA LIU • Connection INTERFACE CONNECTOR TO MAIN CONTROLLER SPEAKER INTERFACE Copyright© 1995-2012 SAMSUNG. All rights reserved. 2-24...
Page 34: Joint Pba
The 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 Regi. Clutch Pick-Up Clutch HVPS I/F 2-25 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 35: Smps Board
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 AC_Inlet INPUT_AC Switch FUSER_AC Output OUTPUT_DC Copyright© 1995-2012 SAMSUNG. All rights reserved. 2-26...
Page 36 Pin No Description Ground +5V Power Ground +5V Power Ground Ground +24V Power 24V_OFF Sleep mode +24V Power RELAY ON Fuser Relay +24V Power 24V_F Photo Triac Bias Ground Fuser on Fuser On 2-27 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 37: Hvps Board
• Information Part Code : JC44–00205A PBA name : HVPS • Connection Charger Blade HVPS I/F Clutch I/F Outbin Full I/F Crum I/F FAN SMPS I/F Regi, Feed sensor I/F Empty sensor I/F Copyright© 1995-2012 SAMSUNG. All rights reserved. 2-28...
Page 38: Electrical Parts Location
Photo interrupter (Paper empty sensor) Paper detection Photo interrupter (Regi sensor) Paper detection Photo interrupter (Feed Sensor) Paper detection Switch Front Cover Cover Open detection Photo interrupter (Bin_full sensor) Bin_full detection Photo interrupter (Exit Sensor) Paper detection 2-29 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 39 2. Product specification and description Motor and Clutch Location Description ADF Motor Scan Motor Main Fan Registration Clutch Pick up Clutch Main Motor Copyright© 1995-2012 SAMSUNG. All rights reserved. 2-30...
Page 41: 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© 1995-2012 SAMSUNG. All rights reserved. 2-32...
Page 42: Software Descriptions
Host. 2) Kernel that control and management the whole procedure include of Control fl ow and Printing Job before transfer to Engine system. 2-33 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 43: 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© 1995-2012 SAMSUNG. All rights reserved. 2-34...
Page 44 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. 2-35 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 45: 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 46: 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© 1995-2012 SAMSUNG. All rights reserved.
Page 47: Screws Used In The Printer
FRAME SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A BASE-PICKUP 6003-000282 SCREW-TAPTYPE;BH,+,-,B,M3,L8,ZPC(BLK),SWRCH18A,- 6003-000196 COVER-MIDDLE SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 6003-000282 SCANNER SCREW-TAPTYPE;BH,+,-,B,M3,L8,ZPC(BLK),SWRCH18A,- 6003-000196 PLATEN SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 6003-000196 PLATEN-LOWER SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 6003-000269 DRIVE PLATEN SCREW-TAPTYPE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,- 6003-000196 SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 6003-000196 MAINLINE SCREW-TAPTYPE;PWH,+,B,M3,L10,NI PLT,SWRCH18A 6003-000269 SCREW-TAPTYPE;BH,+,-,S,M3,L6,ZPC(WHT),SWRCH18A,- Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 48: Replacing The Main Svc Parts
1. Remove the cassette. 3. Remove the rear cover after removing 6 screws. 2. Open the rear cover. Release the both hinges. 4. Open the front cover. Release the left cover. 5. Release the right cover. Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 50: Scanner
5. Unplug all connectors connecting the scanner. 2. Remove 2 screws on the left side. 6. Lift up and release the scanner. 3. Remove 1 screw on the rear side. 4. Remove 1 screw on the front side. Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 51: Adf
2. Unplug the connector. Lift up and release the ADF unit. 3.3.5. ADF Roller 1. Open the ADF cover. 3. Pull the shaft in the direction of arrow. Release the ADF roller Assy. 2. Remove 2 holders and 3 E-rings. Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 52: Adf Motor
1. Remove the ADF Unit. 4. Remove the ADF motor after removing 3 screws. 2. Open the ADF cover. Remove 1 screw. 3. Remove 2 screws securing the ADF rear cover. Remove the ADF rear cover. Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 53: Scan Motor
1. Remove the ADF unit. Remove the scanner. 4. Remove the platen glass. 2. Remove 3 screws from the bottom of the scanner. 5. Release the belt from the scan motor. 3. Remove 4 screws. Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 54: Cis Unit
3. Disassembly and Reassembly 3.3.8. CIS Unit 1. Remove the ADF Unit. Remove the scanner. 4. Unplug the flat cable. And then remove the CIS unit. 2. Remove 4 screws. 3. Remove the platen glass. 3-10 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 55: Middle Cover
3. Disassembly and Reassembly 3.3.9. Middle Cover 1. Remove the scanner and all covers. 4. Remove 2 screws. And then lift the middle cover up. 2. Unplug the connector. 3. Remove 4 screws. Copyright© 1995-2012 SAMSUNG. All rights reserved. 3-11...
Page 56: Fax Board
3.3.11. Main board 1. Remove the right cover. 3. Unplug all connector on main board. Remove 2 screws. And then release the main board. 2. Remove the fax board bracket after removing 3 screws. 3-12 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 57: Smps Board
2. Remove the SMPS board cover by releasing 2 hooks. 3.3.13. HVPS board 1. Remove the right cover. 4. Release the HVPS board. 2. Unplug all connectors on HVPS board. 3. Remove 6 screws. Copyright© 1995-2012 SAMSUNG. All rights reserved. 3-13...
Page 58: Bin-Full Sensor
3. Remove the sensor connector. 3.3.15. Main Drive Unit 1. Remove the left cover. 3. Release the main drive unit after moving the BUSH FUSER SWING to the right. 2. Remove 5 screws. 3-14 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 59: Pick Up And Regi Clutch
3. Disassembly and Reassembly 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. Copyright© 1995-2012 SAMSUNG. All rights reserved. 3-15...
Page 60: Pick Up And Forward Roller
3. Disassembly and Reassembly 3.3.17. Pick up and Forward roller 1. Remove the bottom bar after removing 2 screws. 3. Release the pick-up/forward roller Assy. 2. Remove 2 screws. 3-16 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 61: Copyright© 1995-2012 Samsung. All Rights Reserved
3. Release the retard roller holder. Then release the retard roller form its holder. 2. Open the roller cover. 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: Duplex Unit
4. Stand the machine. Push the green handle to release the duplex unit. 2. Open the rear cover. Release the both hinges. 5. Lift and release the duplex unit. 3. Remove the rear cover after removing 6 screws. 3-18 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 63: Transfer Roller
1. Open the front cover. Remove the toner cartridge. 2. Remove the holder. Then remove the transfer roller. 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: Fuser Unit
3. Remove the fuser unit after removing 4 screws. 2. Unplug 2 connectors. (SMPS board x 1, Main board x 1) 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: Feed And Regi Sensor
3. Disassembly and Reassembly 3.3.24. Feed and Regi sensor 1. Remove the duplex unit. 4. Remove the sensor PBA after unplugging the connector. 2. Remove 1 screw. 3. Remove the sensor cover while pushing the hook. Copyright© 1995-2012 SAMSUNG. All rights reserved. 3-21...
Page 66: Motor
3. Remove the Duplex unit while pushing green buttons. 6. Removing 10 screws. 4. Remove 1 screw. Remove the GROUND-SAW. And unplug the motor connector. 7. Release the FRAME MAIN-LEFT. 3-22 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 68: Alignment And Troubleshooting
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. Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 69 Redials the last number in ready mode, or inserts a pause(-) into a fax number in 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© 1995-2012 SAMSUNG. All rights reserved.
Page 70: Understanding The Status Led
• To resolve the error, look at the error message and its instructions from the troubleshooting part. • You also can resolve the error with the guideline from the computers’ Samsung Printer Status or Smart Panel program window. Status LED...
Page 71: Jam Removal
To avoid tearing the document, remove the jammed document slowly and carefully. 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© 1995-2012 SAMSUNG. All rights reserved.
Page 72 4) Grasp the misfeed paper, and remove the paper from the feed area by carefully pulling it. If you see no paper in this area, go to next step. 5) Close the document feeder. Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 73 4. Alignment and Troubleshooting 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.
Page 74: Clearing Paper Jams
3) Remove the jammed paper by gently pulling it straight out. 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. Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 75 1) Open and close the front cover. The jammed paper is 2) Gently pull the paper out of the output tray. automatically ejected from the machine. If you do not see the jammed paper, go to the next step. Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 76 3) Remove the jammed paper by gently pulling it straight off the toner cartridge. out. 2) Lift up the cover paper—guide. 4) Return the cover paper-guide. Insert the toner cartridge. Close the front cover. Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 77 1) Open the rear cover. Remove the jammed paper. 4) Remove the jammed paper. 2) Pull out tray1. 5) Close the duplex unit. 6) Close the rear cover. 3) Open the duplex unit. Copyright© 1995-2012 SAMSUNG. All rights reserved. 4-10...
Page 78: Useful Menu Item For Service
In this case, you can set the machine to use this function to let print-outs stacked firmly. But, using this function will make the print speed slow. 4-11 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 79 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 80: Periodic Defective Image
White and Black Spots Developing Roller 36.75 mm White spot, Horizontal black band Supply Roller 63.22 mm Periodic Band by little difference of density Transfer Roller 47.12 mm Ghost, Damaged image by abnormal transfer Transfer roller 4-13 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 81: Useful Management Tools
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.
Page 82: 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. 4-15 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 83: Using Samsung Printer Status (Windows Only)
Check the operating system(s) that are compatible with your machine (see Basic guide). 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 84: Using Smart Panel (Linux Only)
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 www.samsung.com. NOTE •...
Page 85: 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. Copyright© 1995-2012 SAMSUNG. All rights reserved. 4-18...
Page 86: Update The Firmware By Using The Network
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© 1995-2012 SAMSUNG. All rights reserved.
Page 87 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. Copyright© 1995-2012 SAMSUNG. All rights reserved. 4-20...
Page 88: Tech Mode
Fuser Pickup Roller Retard Roller Forward Roller Feed Roller Engine Footer Off* Dial Tone Caller ID Machine Test Switch Test Test Param Set Modem Test Dram Test Rom Test Shading Test Scan Aging 4-21 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 89 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%. Copyright© 1995-2012 SAMSUNG. All rights reserved. 4-22...
Page 90 Protocol list shows the sequence of the CCITT group 3 T.30 protocol during the most recent sending or receiving operation. Use this list to check for send and receive errors. • Supplies Info Supplies Information Report shows toner cartridge information such as toner remaining, toner capacity, toner product date etc. 4-23 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 91 Detect when a paper is at Exit. sensor. Input High[Low] 105-0030 Black MHV Bias Black MHV bias voltage on at normal drive level Output On[Off] 106-0030 Black Dev Bias Black Dev bias voltage on at normal drive level Output On[Off] Copyright© 1995-2012 SAMSUNG. All rights reserved. 4-24...
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] 4-25 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 93: 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© 1995-2012 SAMSUNG. All rights reserved. 4-26...
Page 94: 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 4-27 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 95: Error Code And Troubleshooting
Error #U2-1112 Turn off then on P.4–40 U2-1113 Error #U2-1113 Turn off then on P.4–40 U3-3313 Document jam. Remove jam P.4–41 U3-3314 Document jam. Remove jam P.4–41 U3-4110 Door of scanner is open. P.4–41 Copyright© 1995-2012 SAMSUNG. All rights reserved. 4-28...
Page 96: Error Code
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 problem persists, replace the main board. 4-29 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 97: Prepare New Cartridge
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: Install Toner Cartridge
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. 4-31 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 99: Paper Jam In Tray1
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: Paper Empty 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: Paper Jam Inside Machine
2) Check if the paper in tray is loaded properly. Adjust the guide. Check the machine setting is normal for paper. 3) Check if the Guide-Change Duplex of the rear cover is defective or broken. Check if the rib form of the rear cover is normal. Copyright© 1995-2012 SAMSUNG. All rights reserved. 4-34...
Page 102: Paper Jam In Exit Area
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 connected properly. Reconnect it or replace the Bin-full sensor. 4-35 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 103: Error #S1-3212 Turn Off Then On
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 SAMSUNG. All rights reserved. 4-36...
Page 104: Door Open Close It
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: Scanner Locked
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: Network Problem : Ip Conflict
► 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: Error #U2-1112 Turn Off Then On
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 persists after replacing LSU, replace the main board. Copyright© 1995-2012 SAMSUNG. All rights reserved. 4-40...
Page 108: Document Jam. Remove Jam
► Error Code U3–4110 ► Error message Door of scanner is open. ► Symptom ADF or ADF top cover is opened. ► Troubleshooting method 1) Close the ADF unit. 2) Close the ADF top cover. 4-41 Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 109: 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. Copyright© 1995-2012 SAMSUNG. All rights reserved. 4-42...
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. 4-43 Copyright© 1995-2012 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© 1995-2012 SAMSUNG. All rights reserved. 4-44...
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. 4-45 Copyright© 1995-2012 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© 1995-2012 SAMSUNG. All rights reserved. 4-46...
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. 4-47 Copyright© 1995-2012 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© 1995-2012 SAMSUNG. All rights reserved. 4-48...
Page 116: System Diagram
P IO o r UAR T Crum IF / P ic kup & re gi c lutc h 2-Line LCD OP E DEVE K UNIT WLAN IF POWER Kin g b ird SMPS(NEW) W-m ode l only CORD CRUM Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 118: 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© 1995-2012 SAMSUNG. All rights reserved.
Page 119: 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© 1995-2012 SAMSUNG. All rights reserved.
Page 120 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© 1995-2012 SAMSUNG. All rights reserved.
Page 121 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© 1995-2012 SAMSUNG. All rights reserved.
Page 122 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© 1995-2012 SAMSUNG. All rights reserved.
Page 123 (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© 1995-2012 SAMSUNG. All rights reserved.
Page 124 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© 1995-2012 SAMSUNG. All rights reserved.
Page 125: 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© 1995-2012 SAMSUNG. All rights reserved.
Page 126: Selecting A Location
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) Copyright© 1995-2012 SAMSUNG. All rights reserved.
Page 127 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 © 2012 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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Samsung SCX-472 series Service Manual

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4.2.2. Error Code and Troubleshooting

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Troubleshooting

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