Samsung CLX-8640ND Samsung CLX-8650ND Service Manual


Accurate, clear and concise text, combined with detailed illustrations, lists of error code, instruction and diagrams, guide you through procedure of repair, remediate, maintenance and adjustments your copier, printer or scanner.
Present service manual Samsung CLX-8640ND Samsung CLX-8650ND contain clear instructions and procedures on how to fix the problems occurring in your equipment.
The information contained in this repair manual is necessary for the repair, but also prevention, resulting in a longer life of your equipment.
Format of the manual: PDF, makes it easy to navigate, instant download and print. English language.
To see what contain, please read table of contents:

1) PRECAUTIONS
1.1. Safety warning
1.2. Caution for safety
1.2.1. Toxic material
1.2.2. Electric shock and fire safety precautions
1.2.3. Handling precautions
1.2.4. Assembly and Disassembly precautions
1.2.5. Disregarding this warning may cause bodily injury
1.3. ESD precautions

2) PRODUCT SPECIFICATIONS AND DESCRIPTION
2.1. Product Overview
2.2. Specifications
2.2.1. General
2.2.2. Print
2.2.3. Controller and Software
2.2.4. Scan
2.2.5. Copy
2.2.6. Fax
2.2.7. Paper Handling
2.2.8. Consumables
2.2.9. Maintenance Parts
2.2.10. Options
2.3. System Configuration
2.4. Feeding System
2.4.1. Cassette
2.4.2. Pick-Up Unit
2.4.3. Registration Unit
2.4.4. MPF(Multi-Purpose Feeder) Unit
2.4.5. Exit Unit
2.4.6. Duplex Unit
2.5. Fuser unit
2.6. Image Creation
2.6.1. Printing process overview
2.6.2. Imaging Unit
2.6.2.1. Imaging Unit Overview
2.6.2.2. Drum drive
2.6.2.3. Developer Unit
2.6.3. ITB (Intermediate Transfer Belt) Unit
2.6.3.1. ITB Unit overview
2.6.3.2. Transfer belt drive
2.6.3.3. Transfer belt cleaning
2.7. Laser scanning unit (LSU)
2.7.1. LSU overview
2.7.2. Laser Scanning Optical path
2.7.3. Laser synchronizing detectors
2.8. Drive System
2.8.1. Drive Motors
2.8.2. Main Drive Unit (OPC, DEVE, ITB, T1 DIS_ENG)
2.8.3. PH (Paper Handling) Drive
2.8.4. Fuser_Exit Drive
2.8.5. Cst Lift Drive
2.8.6. Toner Supply Drive
2.8.7. Waste Toner Container Drive
2.8.8. ITB Auger Drive
2.9. Duplex Automatic Document Feeder(DADF)
2.9.1. DADF overview
2.9.2. Electrical parts location
2.9.3. DADF Drive System
2.10. Hardware Configuration
2.10.1. Main Controller
2.10.2. OPE controller
2.10.3. ADF PBA
2.10.4. TCF(Triple Cassette Feeder) PBA
2.10.5. SMPS board
2.10.6. Fuser Drive Board (FDB)
2.10.7. HVPS board
2.10.8. Eraser PBA
2.10.9. Fuser PBA
2.10.10. CRUM PBA
2.10.11. Deve CRUM Joint PBA
2.10.12. Toner CRUM Joint PBA
2.10.13. ITB Encoder PBA
2.10.14. Toner Connector PBA
2.10.15. Connector PBA
2.10.16. Side Joint PBA
2.10.17. Finisher IF PBA
2.10.18. Paper Size PBA
2.10.19. Sensor locations

3) DISASSEMBLY AND REASSEMBLY
3.1. Precautions when replacing parts
3.1.1. Precautions when assembling and disassembling
3.1.2. Precautions when handling PBA
3.1.3. Releasing Plastic Latches
3.2. Replacing the maintenance part
3.2.1. Drum Unit
3.2.2. Developer Unit
3.2.3. ITB Unit
3.2.4. Fuser Unit
3.2.5. Transfer Roller
3.2.6. Pick-Up_Reverse_Forward roller
3.2.7. DADF Pick-up roller Assy
3.2.8. DADF Reverse roller Assy
3.2.9. MP Rollers
3.3. Replacing the main SVC part
3.3.1. Left Cover
3.3.2. Rear Cover
3.3.3. HVPS
3.3.3.1. HVPS board1
3.3.3.2. HVPS board2
3.3.4. Temperature Sensor
3.3.5. ITB Waste Auger Drive Unit
3.3.6. LSU
3.3.7. Main board
3.3.8. SMPS board
3.3.9. Main Drive Unit
3.3.10. SMPS shield
3.3.11. CST Lift Drive unit
3.3.12. Fuser Drive Board
3.3.13. Paper Size Sensor
3.3.14. PH(Paper Handling) Drive Unit
3.3.15. Fuser Drive Unit
3.3.16. Toner Supply Drive Unit
3.3.17. Side Unit
3.3.17.1. MP Pick Up Unit
3.3.17.2. Duplex Exit Sensor
3.3.17.3. Duplex Motor
3.3.17.4. Duplex Fan
3.3.18. Exit Unit
3.3.19. Pick Up Unit
3.3.20. OPE Unit
3.3.21. DADF Unit
3.3.21.1. DADF Hinge
3.3.21.2. DADF Cover
3.3.21.3. DADF Board
3.3.21.4. DADF Stacker
3.3.21.5. DADF COVER-OPEN
3.3.21.6. DADF GUIDE-PICK UP ASSY
3.3.21.7. DADF-EXIT UP
3.3.21.8. HOLDER-HARNESS
3.3.21.9. COVER-FAN DUCT and COVER-FAN
3.3.21.10. DADF-CCDM
3.3.21.11. DADF Drive
3.3.22. Scanner
3.3.22.1. Scan Glass
3.3.22.2. APS Sensor
3.3.22.3. Filter
3.3.22.4. COVER-GLASS ADF
3.3.22.5. Scan Joint Board
3.3.22.6. Fan
3.3.22.7. CCDM
3.3.22.8. Scanner Assy
3.3.23. SCF (Second Cassette Feeder) with Stand
3.3.23.1. SCF Main Board
3.3.23.2. SCF Lift Motor Assy
3.3.23.3. SCF Feed Motor Assy
3.3.23.4. FOOT
3.3.24. TCF (Triple Cassette Feeder)
3.3.24.1. TCF Main Board
3.3.24.2. TCF Lift Motor Assy
3.3.24.3. TCF Feed Motor Assy
3.3.24.4. FOOT
3.3.25. Finisher
3.3.26. HDD (Hard Disk Drive)

4. TROUBLESHOOTING
4.1. Control Panel
4.1.1. Introducing the display screen and useful buttons
4.2. Understanding the status LED
4.3. Updating Firmware
4.3.1. Updating from the Printer Control Panel
4.3.2. Updating from the Network
4.4. JAM removal
4.4.1. Clearing original document jams
4.4.2. Clearing paper jams
4.5. Service Mode (Tech Mode)
4.5.1. Entering and Exiting Service Mode
4.5.2. Service Mode Menu Tree
4.5.3. Information
4.5.3.1. General
4.5.3.2. Supply Status
4.5.3.3. Software Version
4.5.3.4. Service Hours
4.5.3.5. Fault Log
4.5.3.6. Print Reports
4.5.3.7. Export Reports
4.5.4. Maintenance Counts
4.5.4.1. Fault Count
4.5.4.2. Jam Count
4.5.4.3. Part Replacement Count
4.5.4.4. Finisher Handling Count
4.5.5. Diagnostics
4.5.5.1. Engine Diagnostics
4.5.5.2. Fax Diagnostics
4.5.5.3. Scanner Diagnostics
4.5.5.4. Adjustment
4.5.5.5. ACS (Auto Color Sensing)
4.5.5.6. Image Management
4.5.5.7. Print Test Patterns
4.5.6. Service Functions
4.5.6.1. Main Memory Clear
4.5.6.2. Hard Disk Maintenance
4.5.6.3. Toner Save
4.5.6.4. Port
4.5.6.5. Debug Log
4.5.6.6. Capture Log
4.5.6.7. System Recovery
4.5.6.8. TR Control Mode
4.5.6.9. User Data Management
4.6. Error Code and Troubleshooting
4.6.1. Ax-xxxx type error code
4.6.2. Cx-xxxx type error code
4.6.3. H1-xxxx type (Optional Cassette) error code
4.6.4. H2-xxxx type (Finisher) error code
4.6.5. Mx-xxxx type error code
4.6.6. Sx-xxxx type error code
4.6.7. U1-xxxx type (Fuser) error code
4.6.8. U2-xxxx type (LSU) error code
4.6.9. U3-xxxx type(DADF) error code
4.7. Image quality problems and solutions
4.8. Other errors

5) SYSTEM DIAGRAM
6. Reference Information
6.1. Tools for Troubleshooting
6.2. Glossary

Number of pages: 441.