Samsung CLP-670N Service Manual
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Samsung CLP-670N Service Manual

Samsung CLP-670N Service Manual

Color laser printer
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■ Printing speed
- CLP-620 series : Black/Color 20 ppm (A4)
- CLP-670 series : Black/Color 24 ppm (A4)
■ Resolution : up to 9600x600 dpi effective output
■ Toner cartridge
- Initial : 2.5K/ 2K (black/ color)
- Sales : 2.5K/2K (black/ color)
5K/4K (black/ color)
Service Manual
Color Laser Printer
CLP-620ND
CLP-670N/670ND
■ Paper handling
- Max. 850 sheets paper capacity
- 250 sheets cassette, 500 sheets option cassette
- MP tray : 100 sheets
■ Memory
- CLP-620 series : 256 MB (Max. 512 MB)
- CLP-670 series : 256 MB (Max. 784 MB)
■ Network, USB 2.0
■ 2 Line LCD

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Summary of Contents for Samsung CLP-670N

  • Page 1 Service Manual Color Laser Printer CLP-620ND CLP-670N/670ND ■ Paper handling ■ Printing speed - Max. 850 sheets paper capacity - CLP-620 series : Black/Color 20 ppm (A4) - 250 sheets cassette, 500 sheets option cassette - CLP-670 series : Black/Color 24 ppm (A4) - MP tray : 100 sheets ■...
  • Page 2 GSPN (Global Service Partner Network) North America : service.samsungportal.com Latin America : latin.samsungportal.com CIS : cis.samsungportal.com Europe : europe.samsungportal.com ⓒ Samsung Electronics Co.,Ltd. August. 2009 China : china.samsungportal.com Printed in Korea. Asia : asia.samsungportal.com Mideast & Africa : mea.samsungportal.com VERSION NO. : 1.00...

  • Page 3: Table Of Contents

    Contents chapter 1 Precautions 1.1 Safety Warning …………………………………………………… 1-1 1.2 Caution for safety ………………………………………………… 1-2 1.3 ESD Precautions ………………………………………………… 1-5 chapter 2 Product Overview 2.1 Product Summary ………………………………………………… 2-1 2.2 Sepcifications …………………………………………………… 2-2 2.2.1 General Print Engine ………………………………………… 2-2 2.2.2 Controller & S/W …………………………………………… 2-3 2.2.3 Paper Handling ………………………………………………...
  • Page 4 Contents chapter 3 Maintenance and Disassembly 3.1 Precautions when replacing parts ……………………………… 3-1 3.1.1 Precautions when assembling and disassembling ……… 3-1 3.1.2 Preautions when handling PBA …………………………… 3-1 3.1.3 Releasing Plastic Latches ………………………………… 3-1 3.2 Replacing a Maintenance Parts ………………………………… 3-2 3.2.1 Fuser Unit ……………………………………………………...
  • Page 5 Contents 4.2.4 Image Quality Problems and solutions …………………… 4-55 4.2.5 Common Problems and solutions ………………………… 4-62 4.2.6 Network problems and soltutions ………………………… 4-63 chapter 5 System Diagram 5.1 Main PBA (24ppm) Block Diagram …………………………… 5-1 5.2 Main PBA (20ppm) Block Diagram …………………………… 5-2 5.3 OPE PANEL Block Diagram ……………………………………...

  • Page 6: Safety Warning

    High voltages and lasers inside this product are dangerous. This printer should only be serviced by a qualified service technician. (2) Use only Samsung replacement parts There are no user serviceable parts inside the printer. Do not make any unauthorized changes or additions to the printer, these could cause the printer to malfunction and create electric shock or fire haz- ards.

  • Page 7: 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 lightening storms. Samsung recommend 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 8 1.2.4 Assembly / Disassembly Precautions Replace parts carefully, 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.
  • Page 9 - The equipment shall be installed near the socket outlet and shall be accessible. - Be sure to fix and plug in the power cable securely after the installation so that no one trips over it. Service Manual Samsung Electronics...

  • Page 10: 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. Service Manual Samsung Electronics...

  • Page 11: Product Summary

    - MP tray : 100 sheets ■ Memory - CLP-620 series : 256 MB (Max. 512 MB) - CLP-670 series : 256 MB (Max. 784 MB) ■ Network, USB 2.0 CLP-620ND ■ 2 Line LCD CLP-670N/670ND Service Manual Samsung Electronics...

  • Page 12: Sepcifications

    Product spec and feature 2.2 Sepcifications 2.2.1 General Print Engine Item CLP-620ND CLP-670N/670ND Engine Speed Simplex B&W : Up to 20 ppm in A4 (21 ppm in B&W : Up to 24 ppm in A4 (25 ppm in Letter) Letter)

  • Page 13: Controller & S/W

    Product spec and feature 2.2.2 Controller & S/W Item CLP-620ND CLP-670N/670ND Samsung CHORUS3 360 MHz SPGPV4 700 MHz Memory Std. 256 MB 256 MB Max. 512 MB 768 MB Memory Expansion 1 Slot 1 Slot Printer Languages SPL-C, PCL5, PCL6...
  • Page 14 Product spec and feature Item CLP-620ND CLP-670N/670ND Network Protocol TCP/IP,SNMPv3,HTTP1.1, IPP TCP/IP,SNMPv3,HTTP1.1, IPP Interface Network OS Windows 2000/XP(32/64bit)/2003/ Windows 2000(32/64bit)/ Server/2008(32/64bit)/Vista XP(32/64bit)/2003(32/64bit)/ MAC 10.3~10.5 Mac OS X 10.3~10.5 Vista(32/64bit)/2008(32/64bit) and Universial Mac MAC 10.3~10.5 Mac OS X 10.3~10.5 TCP/IP Only...

  • Page 15: Paper Handling

    Product spec and feature 2.2.3 Paper Handling Item CLP-620ND CLP-670N/670ND Standard Capa. 250-sheet Cassette Tray, 250-sheet Cassette Tray, 100 MP@ 80g/㎡ 100 MP@ 80g/㎡ Max. Capa. 850 sheets @ 80g/㎡ 850 sheets @ 80g/㎡ Printing Max. Size 216 X 356((8.5" x 14") 216 X 356((8.5"...
  • Page 16 Product spec and feature Item CLP-620ND CLP-670N/670ND Output Stacking FaceUp Capacity FaceDown 250 sheets @ 80g/㎡ 250 sheets @ 80g/㎡ Capacity Output Full sensing Finishing Duplex Supporting Std. "670N : N/A 670ND : Std." Media sizes A4, Letter, Legal, Oficio, Folio...

  • Page 17: Reliability And Service

    CLP 620ND CLP-670N/670ND CLP 670N/670ND Printing Volume(AMPV) 837 pages ( B&W : 335 pages, ■ CLP-670N Color : 502 pages) 987 pages ( B&W : 395 pages, Color : 592 pages) ■ CLP-670ND 1101 pages ( B&W : 441 pages,...

  • Page 18: Environment

    Product spec and feature 2.2.5 Environment Item CLP-620ND CLP-670N/670ND Acoustic Noise Printing Less than 51 dBA print @ CST Less than 52 dBA print @ CST Level(Sound Less than 52 dBA print @ SCF Less than 53 dBA print @ SCF...

  • Page 19: Consumables

    Product spec and feature 2.2.6 Consumables Item CLP-620ND CLP-670N/670ND Toner Cartridge Model ■ Standard Yield ■ Standard Yield K toner cartridge: CLT-K508S K toner cartridge: CLT-K508S C toner cartridge: CLT-C508S C toner cartridge: CLT-C508S M toner cartridge: CLT-M508S M toner cartridge: CLT-M508S...

  • Page 20: Maintenance Parts

    Product spec and feature Item CLP-620ND CLP-670N/670ND Paper Transfer Model CLT-T508 CLT-T508 Belt Yield 50,000 pages 50,000 pages Unique, Electronic key(CRUM) Unique, Electronic key(CRUM) Sensor None, that would be traced via software None, that would be traced via software 2.2.7 Maintenance parts 항목...

  • Page 21: Model Comparison Table

    Product spec and feature 2.3 Model Comparison Table CLP-620ND CLP-670N CLP-670ND Image Speed (A4) 20/20 ppm 24/24 ppm 24/24 ppm Resolution (dpi) 1,200 x 600 1,200 x 600 1,200 x 600 CPU (MHz) Memory 256 (Max.512) 256 (Max.784) 256 (Max.784)

  • Page 22: Product Configuration

    Output support Front cover Paper level indicator Control panel Optional tray[a] Paper width guides on a multi-purpose tray Tray 1 Toner cartridges Multi-purpose tray Paper transfer belt Multi-purpose tray handle [a] This is an optional feature. 2-12 Service Manual Samsung Electronics...
  • Page 23 Product spec and feature 2.4.1.2 Rear View Control board cover Optional tray2 cable connector Power receptacle Network port Power-switch USB port Handle 2-13 Service Manual Samsung Electronics...
  • Page 24 OPE Unit Toner cartridge (C) Fuser Unit Toner cartridge (M) PTB Unit (Paper transfer belt) Toner cartridge (Y) Main PBA Cassette SMPS PBA SCF Unit (Option cassette) FDB (Fuser Drive Board) PBA Pick up Roller 2-14 Service Manual Samsung Electronics...
  • Page 25 Duplex Pass SimplexPass SimplexPass SimplexPass SimplexPass SimplexPass Cassette Feed Cassette Feed Cassette Feed Cassette Feed MP Feed MP Feed MP Feed MP Feed MP Feed MP Feed SCF1 Feed SCF1 Feed SCF1 Feed SCF1 Feed 2-15 Service Manual Samsung Electronics...

  • Page 26: Main Pba

    EXIT STEP, 4pin SCF JACK BLDC FUSER, 15pin REAR FAN, 3pin ETHERNET JACK FUSER THERMISTOR,4pin SMPS TYPE4, 24pin USB DEVICE JACK, CURL SENSOR (reserved), 3pin LSU MOTOR 10pin TEMP_LSU, 2pin HVPS1 JTAG, 8pin DIMM SLOT 2-16 Service Manual Samsung Electronics...
  • Page 27 EXIT STEP, 4pin SCF JACK BLDC FUSER, 15pin REAR FAN, 3pin ETHERNET JACK FUSER THERMISTOR, 4pin SMPS TYPE4, 24pin USB DEVICE JACK, CURL SENSOR (reserved), 3pin LSU MOTOR 10pin DIMM SLOT HVPS1 TEMP_LSU 2pin FLASH 2-17 Service Manual Samsung Electronics...
  • Page 28 Product spec and feature 1) Main PBA block diagram ◆ SPGPV4 for CLP-670ND 2-18 Service Manual Samsung Electronics...
  • Page 29 Product spec and feature ◆ CHROUS3 for CLP-620ND 2-19 Service Manual Samsung Electronics...
  • Page 30 - SPGPV4 With MII Interface - Active LED(Yellow) / Link LED(Green) > PWM - High Voltage Control With Duty - Main Motor Clock > I2C Interface - NVRAM (system information + network information) - CRUM 2-20 Service Manual Samsung Electronics...
  • Page 31 DEVE BLDC FEED Step Motor relay 24V2 FAN_REAR 5VLSU SPGPv4 (24ppm) LSU LD,BD CHROUS3 (20ppm) 3.3V Regulator micom nPOWER_OFF LPEC3 5V_CTD 3.3V_CRUM DEV CRUM nCRUM_POWER drawer 24V2 24V1 5V_SMPS 24V_ENABLE PTB unit ACR/CTD sensor SMPS Type4 2-21 Service Manual Samsung Electronics...

  • Page 32: Smps Board

    INPUT_24V_Control (from Main PBA) SPECIFICATION General Input/Output Voltage 1) AC 110V (90V ~ 135V) 2) AC 220V (180V ~ 270V) 3) Output Power: 143.2W / Max. 200W DC 5V: 16W ~ 20W DC 24V: 127.2W ~180W 2-22 Service Manual Samsung Electronics...
  • Page 33 +24V1 +24V Ground Power +24V2 +24V Ground Power +24V2 +24V Ground Power +24V2 +24V Ground Power +5V Ground Power +5V Ground Power +5V Ground Power +5V Ground Signal Signal Standby Reserved (Power Save Mode) (Reserved) 2-23 Service Manual Samsung Electronics...

  • Page 34: Hvps Board

    SWITCH ERASER ERASER CHARGER CHARGER TRANSFER SUPPLY SUPPLY ATTR ATTR ■ Connection PANEL HVPS2(from Main Board) EXIT SENSOR Feed, CST empty sensor 24V SWITCH MP solenoid, MP empty, CST detect HVPS1(from Main Board) Fuser bias 2-24 Service Manual Samsung Electronics...
  • Page 35 ◆ Individual T1 channels for each color. ◆ AC + DC deve high voltage. ◆ 1Chanel charger output to each 4 color`s port. ◆ All output channels can be adjusted by using volume control components. 2-25 Service Manual Samsung Electronics...

  • Page 36: Fuser Drive Board

    SMPS AC ( to SMPS) ■ Specification Input Voltage AC 110V AC 220V (Range) (90 ~ 135V) (180 ~ 270V) Input Current Output Power Max. 1300W Max. 1300W Phase Detect Not support Protection Relay Control Signal 2-26 Service Manual Samsung Electronics...

  • Page 37: Ope Board

    The OP PBA controls the 2 Line Character LCD(16characters x 2line) unit, and communicates with Main PBA through UART. The OP PBA includes an 8-Bit Micom(HT48C50) and a Power Key. OPE Power Key ■ Connection Main IF Harness LCD Module 2-27 Service Manual Samsung Electronics...

  • Page 38: Feeding Section

    - Feeding Capacity : 100 sheets - Media size : Letter, Legal, Oficio, Folio, A4, ISO B5, JIS B5, Statement, Executive, A5, A6, Envelope Monarch, Envelope COM-10, No-10, Envelope DL, Envelope C5, Envelope C6, Envelope No 9, Envelope 6 3/4 2-28 Service Manual Samsung Electronics...

  • Page 39: Lsu

    LD(Laser Diode) Protector panel Trouble Failure Analysis Hsync Error Though the rotation of polygon motor reach stable, the signal of Hsync is not occurred. Polygon Motor Error The Rotation of Polygon Motor can not reach stable 2-29 Service Manual Samsung Electronics...

  • Page 40: Fuser Unit

    - 10℃ over than Standby Ref.(170℃) Over for 3min. Low Heat Error 10℃ below than target Temp. for 15 sec. At Warm up (Fuser Low Error) 20℃ below than target Temp. for 15 sec. At Printing 2-30 Service Manual Samsung Electronics...

  • Page 41: Ptb(Paper Transfer Belt) Unit

    This product have many motors. These motors drive the PTB unit, fuser unit, feeder unit, exit unit , etc. BLDC Motor For fuser unit BLDC Motor For OPC Drive unit BLDC Motor For feeding section driving Step Motor For feed drive unit Step Motor For Exit drive unit 2-31 Service Manual Samsung Electronics...

  • Page 42: Sensors

    ③ Exit Sensor :Check paper position on Fuser ④ Paper Empty Sensor :Check Paper empty on a cassette ⑤ Cassette Detect :Check cassette insertion ⑥ Paper Feed Sensor : Check paper position ⑦ MPF Empty Sensor :Check paper empty on MPF 2-32 Service Manual Samsung Electronics...
  • Page 43 Product spec and feature Sensor ( Expansion) CASSETTE_DETECT SENS_ACR PAPER_EMPTY THERMOSTAT SENS_FEED CRUM_DEVE_Y(M/C/K) SENS_REGI CRUM_PTB SENS_PAPER_EXIT PAPER_SIZE1(2/3) OUTBIN_FULL INNER_TEMP MP_EMPTY SENS_HUMIDITY OUT_TEMP CLUTCH_FEED SOL__PICKUP 2-33 Service Manual Samsung Electronics...

  • Page 44: Precautions When Replacing Parts

    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 45: Replacing A Maintenance Parts

    The fuser is very hot. So turn the printer off and wait until the printer to cool before replacing it. 2. Release the fuser fixer after removing 1 screw. Fuser fixer Fuser fixer Fuser fixer Fuser fixer Service Manual Samsung Electronics...

  • Page 46: Pick Up Roller

    Disassembly and Reassembly 3.2.2 Pick up roller 1. Remove the Cassette Unit. 2. Pull the pick up roller to the direction of arrow. Hook Hook Service Manual Samsung Electronics...

  • Page 47: General Disassembly

    1. Remove 2 screws from the rear. 3. Remove one hook with any tool. 2. Open the front cover. And remove 2 screws. 4. Remove 4 hooks from the bottom of both side cover. And remove the right/left cover. Service Manual Samsung Electronics...
  • Page 48 Disassembly and Reassembly 5. Release the rear cover after remove 7 screws. 7. Remove the dummy cover after release the lever. 8. Remove 2 screws from both side of top cover. 6. Remove 6 screws. Service Manual Samsung Electronics...
  • Page 49 Disassembly and Reassembly 9. Unplug the 2 connectors. 11. Remove 4 screws from both side. Lift up and release the top cover. 10. Remove the left/right link. Service Manual Samsung Electronics...
  • Page 50 Disassembly and Reassembly 12. Remove the Bracket hinge with any tool after 13. Remove the Damper hinge. (2 EA) remove one screw. And release the front cover. Service Manual Samsung Electronics...

  • Page 51: Front Cover Unit

    Caution : When reassembling, be careful the shaft head direction. 2. For the opposite side, remove 2 screws and the shaft. 4. Release the Front cover unit. Caution : When reassembling, be careful the shaft head direction. Service Manual Samsung Electronics...

  • Page 52: Ope Unit

    Disassembly and Reassembly 3.3.3 OPE Unit - Before disassembling the OPE unit, remove the Top cover. 1. Remove 2 screws from both side of the top 2. Remove 5 screws. cover. Service Manual Samsung Electronics...

  • Page 53: Hvps Board

    - Before disassembling the HVPS board, remove all cover. 1. Unplug the harness from the top/bottom of the HVPS Board. 2. Remove 8 screws and unlatch 4 hooks. Caution : When replacing the HVSPS board, be careful 16 High voltage terminals on it. 3-10 Service Manual Samsung Electronics...

  • Page 54: Main Pba

    2. Remove 4 screws and release the Main PBA. 3.3.6 SMPS Board - Before disassembling the SMPS board, remove the rear cover. 1. Unplug the harness from the SMPS board. 2. Remove 4 screws and release the SMPS board. 3-11 Service Manual Samsung Electronics...

  • Page 55: Fuser Control Board

    2. Remove 4 screws and release the Fuser control board. 3.3.8 LSU 1. To remove the Bracket main & Duct, remove the 2. Remove the 4 screws and remove the LSU Unit. 7 screws and release it. 3-12 Service Manual Samsung Electronics...

  • Page 56: Solenoid

    1. Remove 2 screws and release the CAP-PICK 3. Release the SOLENOID-PICK_UP. UP GEAR. CAP-PICK UP GEAR CAP-PICK UP GEAR 2. Remove the MEA-GEAR PICK UP. And remove 1 screw. MEA-GEAR PICK UP MEA-GEAR PICK UP 3-13 Service Manual Samsung Electronics...

  • Page 57: Drive-Exit Bracket

    3.3.10 Drive-Exit Bracket - Before disassembling the drive-exit bracket, remove the middle cover, HVPS board. 1. Unplug the harness connecting the motor. 2. Remove 3 screws. 3. Release the drive-exit bracket from the frame assy. 3-14 Service Manual Samsung Electronics...

  • Page 58: Drive-Fuser Bracket

    Disassembly and Reassembly 3.3.11 Drive-Fuser Bracket - Before disassembling the drive-exit bracket, remove the middle cover. 1. Unplug 2 harness connecting the motor and clutch. 2. Remove 6 screws. Release the drive-fuser bracket from the frame assy. 3-15 Service Manual Samsung Electronics...

  • Page 59: Alignment & Troubleshooting

    Sends the machine into power saver mode. You can also turn the (Power) power on and off with this button. Status LED Shows the status of your machine. Service Manual Samsung Electronics...

  • Page 60: Understanding The Status Led

    ISO/IEC 19798. The number of pages may be affected by the percent of image area of your originals, operating environment, printing interval, media type, and media size. Some amount of toner may remain in the cartridge even when red LED is turned on and the printer stops printing. Service Manual Samsung Electronics...

  • Page 61: Menu Overview

    - Color : This menu allow you to adjust the color setting. - Network : This menu allow you to configure the network interface. - Job Management : This menu shows the status for printing jobs. Service Manual Samsung Electronics...
  • Page 62 Toner worn occurs. Copies MP Tray / [Tray<x>] Paper Size Graphic Graphic Paper Type Paper Source Resolution Tray 1 Draft Tray 2 Normal MP Tray Best Manual Feeder Fine Edge Auto Darken text Tray Chaining Screen Service Manual Samsung Electronics...
  • Page 63 Auto * 10M Half 10M Full 100M Half 100M Full 802.1x Off * EAP-MD5 User Name Stef M EAP-MSCHAPv2 User Name Stef M PEAP User Name Stef M Clear Setting Clear? Clearing… Network Info Print? Printing… Service Manual Samsung Electronics...
  • Page 64 3. Press up/down arrow to highlight Auto Color Reg. and press OK. 4. The display shows Run Now? ◀Yes▶/ ◀No▶ , then select yes or no. And press the OK to conduct the Auto Color Registration. Service Manual Samsung Electronics...

  • Page 65: Tech Mode

    ▶ ▶ Tech Mode Tech Mode Data Setup Data Setup ◀ ◀ ▶ ▶ Data Setup Data Setup [ Counter Reset ] [ Counter Reset ] Counter Reset Counter Reset Fuser Fuser ◀ ◀ ▶ ▶ Service Manual Samsung Electronics...
  • Page 66 Run Temp. [-20-0]:0*,-5,-10,-15,-20 101-185mm Temp. [-20-0]:0*,-5,-10,-15,-20 186-216mm Temp. [-20-0]:0*,-5,-10,-15,-20 90 gms Temp. [-20-0]:0*,-5,-10,-15,-20 Bond Temp. [-20-0]:0*,-5,-10,-15,-20 OHP Temp. [-20-0]:0*,-5,-10,-15,-20 Cardstock Temp. [-20-0]:0*,-5,-10,-15,-20 Env. Temp. [-20-0]:0*,-5,-10,-15,-20 Label Temp. [-20-0]:0*,-5,-10,-15,-20 EDC Mode NVM Read Write NVM Initialize Test Routines Service Manual Samsung Electronics...
  • Page 67 -25 ~ +25 + : Optical Density slightly increase - : Opticla Density slightly decrease 106-0090 0090-Deve AC M Deve AC Magenta -25 ~ +25 + : Optical Density slightly increase - : Opticla Density slightly decrease Service Manual Samsung Electronics...
  • Page 68 Transfer1 HV Cyan Duplex Duty -25 ~ +25 + : Toner Retransfer - : Image Delition 107-0170 0170-THV K_Dup Transfer1 HV Black Duplex Duty -25 ~ +25 + : Toner Retransfer - : Image Delition 4-10 Service Manual Samsung Electronics...
  • Page 69 : Hot offset takes place, or printed paper is too hot when OHP is printed. ※ Hot offset : When Fusing temperture is too high, printed image appears again in 95mm cycle 3. Trobleshoot : Drop Fusing temperature by increasing (-) value. 4-11 Service Manual Samsung Electronics...
  • Page 70 : Hot offset takes place, or printed paper is too hot when thick paper is printed. ※ Hot offset : When Fusing temperture is too high, printed image appears again in 95mm cycle 3. Trobleshoot : Drop Fusing temperature by increasing (-) value. 4-12 Service Manual Samsung Electronics...
  • Page 71 (step : 2) - : Fuser motor speed decrease 112-0116 0116-Feed Feed Motor Speed For -10 ~ +10 + : Fuser motor speed increase Motor Speed Regi. (step : 1) - : Fuser motor speed decrease 4-13 Service Manual Samsung Electronics...
  • Page 72 Yelllow Dev bias AC voltage on at normal drive level On[Off] 107-0000 0000-Y THV Bias Yellow THV bias voltage on at normal drive level On[Off] 107-0010 0010-M THV Bias Magenta THV bias voltage on at normal drive level On[Off] 4-14 Service Manual Samsung Electronics...
  • Page 73 LSU LD3 Power On/Off (cyan) On[Off] 110-0110 0110-LD Power4 LSU LD4 Power On/Off (black) On[Off] 112-0000 0000-ACR Exec Now Start Auto Color Registration On[Off] 112-0010 0010-Manu Regi Clear Clear Manual Offset Value of Color Regi. On[Off] 4-15 Service Manual Samsung Electronics...

  • Page 74: Firmware Upgrade

    5. Drag the F/W file and Drop down on the usblist2.exe file. ( CLP-620/670 series ROM have file name like ‘CLP620_VA.BB.CC.DD.hd’. ) Drag and Drop !! Drag and Drop !! 6. It will automatically update and reset. 4-16 Service Manual Samsung Electronics...
  • Page 75 To use below method, SWAS program is installed in PC. Start the SWAS program. (Windows Start menu > Programs > Samsung Netowork Printer Utilities > SyncThru Web Admin Service) 1. Firmware Upgrade → Upgrade (check device using IP address) 2. Maintenance → Firmware upload (register firmware)
  • Page 76 Alignment & Troubleshooting 3. Maintenance → Firmware Upload (upload firmware) 4. Maintenance → Firmware Upload (confirm uploaded firmware) 4-18 Service Manual Samsung Electronics...
  • Page 77 Alignment & Troubleshooting 5. Maintenance → Firmware Upgrade → Upgrade (choose firmware) 6. Maintenance → Firmware Upgrade → Upgrade (choose firmware) 4-19 Service Manual Samsung Electronics...
  • Page 78 Alignment & Troubleshooting 7. Maintenance → Firmware Upgrade → Upgrade 8. Maintenance → Firmware Upgrade → Upgrade (Done) 4-20 Service Manual Samsung Electronics...
  • Page 79 1) Click ‘Direct Print Configuration’ in the pop up wind 1) Click Direct Print Configuration in the pop up wind dows when clicking ‘Direct Print’ dows when clicking Direct Print 2) In the ‘Services’ Menu, check ‘Direct Print’. SAMSUNG ELECTRONICS Service Manual...
  • Page 80 Alignment & Tr roubleshooting 1) Click ‘System Security’ in the ‘Security’ menu. 2) Select ‘Feature Management’ in the left frame. 3)In the ‘Services’ Menu, check ‘Direct Print’. 4-21 SAMSUNG ELECTRONICS Service Manual...

  • Page 81: Troubleshooting

    - Main PBA error - LCD Panel error Refer to Indicate Ready or Error Massage Error Massage Power save < Chapter 4.2.2 > Test Print printing Refer to "Solution Quality is of 4.2.4 Print Quality" Nomal? 4-22 Service Manual Samsung Electronics...

  • Page 82: Error Message And Troubleshooting

    21-019 Pulled Out Tray2 Cassette 42 page 28-001 Not installed Transfer belt 43 page 28-002 Not Compatible Transfer belt 44 page 28-004 Replace new Fuser unit 44 page 28-005 Not Installed Fuser unit 44 page 4-23 Service Manual Samsung Electronics...
  • Page 83 4. Check the 24V enable signal on Main PBA. If the voltage is high(5V), replace the Main PBA. 5. Check the 24V1 on SMPS. If there is no output, replace the SMPS board. Cover Switch Connector CN27 Connector 24V1 → No. 2,4,6,8 Pin 24V enable → No. 24 Pin 4-24 Service Manual Samsung Electronics...
  • Page 84 4. Check the feed sensor by using EDC mode after feed a paper from Cassette. Reconnect the harness. If the problem persists, replace the defective part. * Actuator-Feed (JC66-02294A) * Photo-Interrupter (0604-001095) Flat Pickup Solenoid 6p Feed/Tray 7p MP empty/MP empty solenoid 4-25 Service Manual Samsung Electronics...
  • Page 85 After replacing the pick up roller, enter the tech mode and reset the count of the pick up roller. 9. Check Actuator-Feed. If it does not work correctly, check the feed-sensor. 10. Check if the MEA-KNOCK UP PLATE (JC97-02888A) is deformed. 4-26 Service Manual Samsung Electronics...
  • Page 86 2. If the pick up roller does not rotate, check the Gear Pick up(JC97-03228A). If it is defective, replace it. 3. If the pick up roller rotates but the paper is not feeding, replace the Clutch-Feed(JC97-03270A). 4. Reconnect the CN9 connector on Main PBA. 5. Check the sensor and connector in SCF. 4-27 Service Manual Samsung Electronics...
  • Page 87 3. Reconnect the flat cable / exit sensor harness / Feed sensor harness. 4. Check the OPC motor working. / OPC lock. 5. Check PTB working condition, if PTB-Belt is torn. Flat Cable Flat Cable 3p Exit sensor 3p Exit sensor 6p Feed/Tray 6p Feed/Tray empty empty 4-28 Service Manual Samsung Electronics...
  • Page 88 1. If the actuator fuser sensing part has some problems, replace the actuator fuser and exit sensor. 2. Reconnect the flat cable / Exit sensor harness. Flat Cable Flat Cable 3p Exit sensor 3p Exit sensor 4-29 Service Manual Samsung Electronics...
  • Page 89 3. Check if exit actuator’s replace time is not accuracy. If so, check if the spring of exit actuator exists or not. 4. Check if exit motor reverses when the paper needs to reload to the printer. 4-30 Service Manual Samsung Electronics...
  • Page 90 3. Check the Out-Bin Full Sensor. ● Troubleshooting method 1. Clear the paper on exit tray. 2. Reconnect the CN3 connector on Main-PBA. 3. Replace the Actuator-Stacker and Actuator-OutFull. * Actuator-Stacker (JC66-02065A) * Actuator-Outfull (JC66-02064A) * Photo-Interrupter (0604-001095) 4-31 Service Manual Samsung Electronics...
  • Page 91 2. If the problem persists, replace the fuser unit. 3. If the problem persists after replacing the fuser unit, reconnect the CN35 connector on Main-PBA. 4. If the problem persists, replace the Main-PBA. CN35 →Thermistor CN35 →Thermistor 4-32 Service Manual Samsung Electronics...
  • Page 92 4. Remove the resistance value of the thermostat. If the value is infinite, replace the thermostat. 5. If the problem persists, replace the Fuser unit. 6. Replace the SMPS board or FDB (Fuser drive board). ① ① ② ② 4-33 Service Manual Samsung Electronics...
  • Page 93 The ADC port is short. ● Possible Cause The machine can not control fuser temperature. ● Troubleshooting method 1. Turn the power off then on again. 2. If the problem persists, replace the Main PBA. 4-34 Service Manual Samsung Electronics...
  • Page 94 1. Check the motor connector. Reconnect the harness. 2. If the problem persists, replace the BLDC motor. 3. If the problem persists after replacing BLDC motor, replace the Main PBA. Fuser BLDC Fuser BLDC OPC BLDC OPC BLDC DEVE BLDC DEVE BLDC 4-35 Service Manual Samsung Electronics...
  • Page 95 ● Troubleshooting method 1. Check the CN17 connector (FAN) on Main PBA. 2. If the FAN is defective, replace it. 3. If the problem persists, replace the Main PBA. CN17 → Fan CN17 → Fan 4-36 Service Manual Samsung Electronics...
  • Page 96 1. Check the LSU connector on Main PBA. Reconnect it. If necessary, replace it. 2. If the problem persists, replace the LSU or Main PBA. CN10/11 → CN10/11 → LSU LD, Hsync LSU LD, Hsync Connector Connector CN15 → CN15 → LSU Motor LSU Motor Connector Connector 4-37 Service Manual Samsung Electronics...
  • Page 97 (006 : Write Error / 007 : Communication Error / 020 : Read Error ) 6 : K Cartridge 25 : Cyan Cartridge 26 : Magenta Cartridge 27 : Yellow Cartridge ● Troubleshooting method 1. Open the front cover. 2. Reinstall Cartridge. 3. Close the front cover perfectly. 4-38 Service Manual Samsung Electronics...
  • Page 98 2. Load [Letter] paper in Tray1 Cassette. 3. Install Tray1 Cassette. 4. If the problem persists, check if Feed-Actuator works correctly. a. Check the spring is put in right place of Actuator Feed. b. Check the connector fits on photo sensor. 4-39 Service Manual Samsung Electronics...
  • Page 99 The paper in MP tray is not proper. ● Possible Cause 1. Check the harness and connector of the MP Size Sensor. 2. MP Size Sensor is defective. ● Troubleshooting method 1. Open MP Tray. 2. Load [Letter] paper in MP Tray. 4-40 Service Manual Samsung Electronics...
  • Page 100 ● Troubleshooting method 1. Check the paper empty sensor connector. Reconnect it. 2. Check the paper empty sensor. If it is defective, replace it. 3. Check if the actuator is broken. 6p Feed/Tray empty 6p Feed/Tray empty 4-41 Service Manual Samsung Electronics...
  • Page 101 2. Tray1 Home Position Sensor is defective. ● Troubleshooting method 1. Reinstall the tray1 cassette. 2. Reconnect the / Feed sensor harness. 6p Feed/Tray empty 6p Feed/Tray empty 3.Check the CST Draw connector. Reconnect it. 4-42 Service Manual Samsung Electronics...
  • Page 102 ● Troubleshooting method 1. Check the MP paper empty sensor connector. Reconnect it. 2. Check the MP paper empty sensor. If it is defective, replace it. 3. Check if the MP Empty actuator is broken. Actuator-Empty Actuator-Empty 4-43 Service Manual Samsung Electronics...
  • Page 103 ● Troubleshooting method 1. Check the paper Tray2 empty sensor connector. Reconnect it. 2. Check the paper Tray2 empty sensor. If it is defective, replace it. 3. Check if the Tray2 actuator is broken. Actuator Actuator 4-44 Service Manual Samsung Electronics...
  • Page 104 ● Troubleshooting method 1. Reinstall the tray2 cassette. 2. Check the Tray2 Open micro sensor connector. Reconnect it. 3. Check the Tray2 Open micro sensor. If it is defective, replace it micro switch sensor micro switch sensor 4-45 Service Manual Samsung Electronics...
  • Page 105 4. Replace the main board with normal one and test it. If it works replace main board. CRUM Harness and CRUM Harness and connector connector CRUM and Main CRUM and Main board connector board connector PBA CRUM PBA CRUM 4-46 Service Manual Samsung Electronics...
  • Page 106 Replace a current fuser unit with a new one ● Code ● Error message 28-005 Not Installed Fuser Unit ● Possible Cause Fuser unit is not installed properly. ● Troubleshooting method Install the fuser unit. 4-47 Service Manual Samsung Electronics...

  • Page 107: Feeding Problems And Solutions

    Jam 0 Jam 0 Jam 0 Jam type Displayed error message JAM0 Paper Jam in tray1 JAM1 Jam inside machine JAM2 Jam in exit area Jam bottom of duplex Duplex JAM Jam top of duplex 4-48 Service Manual Samsung Electronics...
  • Page 108 2. Remove the jammed paper by pulling in the direction shown. To avoid tearing the paper, pull it out gently and slowly. 6. Insert tray 1 back into the machine until it snaps into place. Printing automatically resumes. 3. Close the front cover. 4-49 Service Manual Samsung Electronics...
  • Page 109 To avoid tearing the paper, pull it out gently and slowly. 5. Close the front cover and insert the trays back into the machine. Printing automatically resumes. 5. Close the front cover to resume printing. 4-50 Service Manual Samsung Electronics...
  • Page 110 5. Close the inner cover. 6. After removing the jammed paper, check for paper which may be jammed in other parts of the machine. 7. Close the top cover. Ensure that the cover is securely closed. 4-51 Service Manual Samsung Electronics...
  • Page 111 Holding the handle on the any resistance when you pull, stop and see In paper transfer belt, lift it out of the machine. the fuser unit area. 3. Open and close the front cover to resume printing. 4-52 Service Manual Samsung Electronics...
  • Page 112 4. Holding the handle on the paper transfer belt, align it with the slots on the inside of the front 6. Close the front cover to resume printing. cover. 4-53 Service Manual Samsung Electronics...
  • Page 113 Check the rollers on paper path is dirty. Clean the rollers. Go to step 3. Is it dirty? Replace the pick up roller, Pick up roller, feed roller is defective. Replace the SMPS. feed roller together. 4-54 Service Manual Samsung Electronics...

  • Page 114: Image Quality Problems And Solutions

    48.2 (CMY) CMY toner cartridge Supply Roller Periodic Band (by little difference of density) 43.4 (K) K toner cartridge Transfer Roller White and Black Spot, Periodic Banding PTB Unit PTB Charge roller 31.4 PTB Unit 4-55 Service Manual Samsung Electronics...
  • Page 115 Start line PTB Charge roller Deve Roller (K) Deve Roller (CMY) Supply Roller (K) Transfer Roller Supply Roller (CMY) OPC Drum Pressure roller Fuser belt 4-56 Service Manual Samsung Electronics...
  • Page 116 Is the charge roller of PTB unit damaged? unit. Check if paper transfer belt is damaged or Replace the PTB unit and test again. contaminated. Dark image or Black Vertical Black Line and Band Conta Horizontal Bands Uneven Density 4-57 Service Manual Samsung Electronics...
  • Page 117 Check if there are vertical scratches on the transfer Replace the PTB unit. unit. Poor fusing Blank Page Vertical White Line Dark image or Black Vertical Black Line and Band Contamination on back of page Horizontal Bands Uneven Density 4-58 Service Manual Samsung Electronics...
  • Page 118 HVPS. Reconnect the harness. Clean the contacts as necessary. Replace any Poor contact between toner cartridge and set contacts. deformed or damaged contacts. HVPS is defective. Replace the HVPS. Dark image or Black Vert Horizontal Bands 4-59 Service Manual Samsung Electronics...
  • Page 119 Horizontal Bands Uneven Density Poor the pressure spring force of the toner cartridge. Replace the toner cartridge The life of the Toner Cartridge has expired. Replace the toner cartridge Horizontal Bands Uneven Density 4-60 Service Manual Samsung Electronics...
  • Page 120 Clean any dirt from the roller or replace the dirty roller or part. Dark image or Black Vertical Black Line and Band Contamination on back of page 4-61 Service Manual Horizontal Bands Uneven Density Samsung Electronics...

  • Page 121: Common Problems And Solutions

    Check if the power input and SMPS Go to step4 Replace the SMPS. output are normal. Is it normal? Replace the OPE PBA or Check the LCD panel. Is it normal? Replace the LCD panel. the Main PBA. 4-62 Service Manual Samsung Electronics...

  • Page 122: Network Problems And Soltutions

    A.DHCP/BOOTP : IP can be changed after rebooting B. Auto IP address : Xerox Model default on 3. Protocol Enable / Disable, Port Number (In SWS) 4. IP filtering On/Off 5. SNMP community name check (When SNMP no response) 4-63 Service Manual Samsung Electronics...
  • Page 123 2. Protocol Enable / Disable, Port Number in printer driver Factory Default 1. Network Value changed to default value A. Some of Network value will not be changed immediately. B. Factory default operation will be done after Power Off / Power On 4-64 Service Manual Samsung Electronics...

  • Page 124: System Diagram

    System Diagram 5. System Diagram 5.1 Main PBA (24ppm) Block Diagram Service Manual Samsung Electronics...

  • Page 125: Main Pba (20Ppm) Block Diagram

    System Diagram 5.2 Main PBA (20ppm) Block Diagram Service Manual Samsung Electronics...

  • Page 126: Ope Panel Block Diagram

    System Diagram 5.3 OPE PANEL Block Diagram Service Manual Samsung Electronics...

  • Page 127: Connection Diagram

    System Diagram 5.4 Connection Diagram Temp CN11 CN10 LSU34 LSU12 24V_1 nSTART_LSU_MOT_1 nREADY_LSU_1_2 CLK_LSU_MOT_1 24V_1 nSTART_LSU_MOT_4 nREADY_LSU_3_4 CLK_LSU_MOT_4 Service Manual Samsung Electronics...

  • Page 128: Reference Information

    • Brush • Tweezers Standard : For general home use, small type. • Software (Driver) installation CD ROM Install Driver CD • Cotton Swab Network S/W CD Standard : For general home use, for medical service. Service Manual Samsung Electronics...

  • Page 129: Acronyms And Abbreviations

    Network Printer Card Tray NVRAM Nonvolatile Random Access Memory FISO Front-In, Side-Out Organic Photo Conductor FPOT First Print out Time Printed Board Assembly Windows Graphic Device Interface Printer Command Language , Printer Graphic Interchange Format Control Language Ground Service Manual Samsung Electronics...
  • Page 130 Reference Information Peripheral Component Interconnect SMPS Switching Mode Power Supply by Intel 1992/6/22, is a local bus SPGP Samsung Printer Graphic Processor standard developed by Intel and Samsung Printer Language introduced in April, 1993 : A60, B60 SPL-C Samsung Printer Language-Color...

  • Page 131: Select A Location For The Printer

    • Provide the proper environment : - A firm, level surface - Away from the direct airflow of air conditioners, heaters, or ventilators - Free of extreme fluctuations of temperature, sunlight, or humidity - Clean, dry, and free of dust Service Manual Samsung Electronics...

  • Page 132: A4 Iso 19752 Standard Pattern

    Reference Information 6.4 A4 ISO 19752 Standard Pattern This test page is reproduced at 70% of the normal A4 size Service Manual Samsung Electronics...
  • Page 133 Reference Information Service Manual Samsung Electronics...
  • Page 134 Reference Information Service Manual Samsung Electronics...
  • Page 135 Reference Information Service Manual Samsung Electronics...
  • Page 136 Reference Information Service Manual Samsung Electronics...

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