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Samsung SCX-8123, SCX-8128 Series / SCX-8123nd, SCX-8123na, SCX-8128nd, SCX-8128na, SCX-8128nx, Service Manual
This manual, Samsung SCX-8123, SCX-8128 Series / SCX-8123nd, SCX-8123na, SCX-8128nd, SCX-8128na, SCX-8128nx, is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your Samsung SCX-8123, SCX-8128 Series / SCX-8123nd, SCX-8123na, SCX-8128nd, SCX-8128na, SCX-8128nx copier.
You can print, zoom or read any diagram, picture or page from this Service Manual. Every chapter on this manual is fully detailed and contain all the simulation codes, trouble codes, maintenance procedures, reset procedures, diagnose procedures of Samsung SCX-8123, SCX-8128 Series / SCX-8123nd, SCX-8123na, SCX-8128nd, SCX-8128na, SCX-8128nx photocopier. You can find easily everything what do you need.
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 SPECIFICATION AND DESCRIPTION
2.1. Product Overview
2.2. Specifications
2.2.1. General Specification
2.2.2. Print Specifications
2.2.3. Controller and Software specification
2.2.4. Scan specification
2.2.5. Copy specification
2.2.6. Fax specification
2.2.7. Paper Handling specification
2.2.8. Consumables
2.2.9. Maintenance Parts
2.2.10. Option
2.3. Feeding System
2.3.1. Feeding System Overview
2.3.2. Main Components and functions
2.3.3. Cassette (Tray 1,2,3,4)
2.3.4. Pick-Up Unit
2.3.5. Registration Unit
2.3.6. MPF(Multi-Purpose Feeder) Unit
2.4. Image Creation
2.4.1. Printing process overview
2.4.2. Imaging Unit
2.4.2.1. Imaging Unit overview
2.4.2.2. Drum Drive
2.4.2.3. Developer Unit
2.5. Fuser unit
2.5.1. Fuser Unit overview
2.5.2. Fuser unit drive
2.5.3. Fuser unit temperature control
2.6. Laser Scanning Unit (LSU)
2.6.1. LSU overview
2.6.2. Laser Scanning Optical path
2.6.3. Laser synchronizing detectors
2.7. Drive System
2.7.1. Drive Motors
2.7.2. Main Drive Unit (OPC_DEVE_Regi_MP_Feed)
2.7.3. Pick Up Drive
2.7.4. Duct Drive
2.7.5. Fuser/ Exit Drive
2.7.6. Toner Supply Drive
2.8. Scanner System
2.8.1. Scanner System Overview
2.8.2. Scanning System Components
2.9. Duplex Automatic Document Feeder(DADF)
2.9.1. DADF overview
2.9.2. Electrical parts location
2.9.3. DADF Drive System
2.9.3.1. DADF Original Drive Assembly
2.9.3.2. DADF Original Registration (Regi) Drive Assembly
2.9.3.3. DADF Feed Drive Assembly
2.9.3.4. DADF Exit Drive Assembly
2.9.3.5. Original Return Drive
2.10. Hardware Configuration
2.10.1. Main Controller
2.10.2. OPE controller
2.10.3. ADF PBA
2.10.4. SMPS board
2.10.5. Fuser Drive Board (FDB)
2.10.6. HVPS board
2.10.7. Eraser PBA
2.10.8. Fuser PBA
2.10.9. Waste Sensor PBA
2.10.10. CRUM PBA
2.10.11. Deve CRUM Joint PBA
2.10.12. Toner CRUM Joint PBA
2.10.13. Scan Joint PBA
2.10.14. CCDM PBA
2.10.15. WLED CTL PBA
2.10.16. WLED AL FRONT PBA
2.11. DCF Unit
2.12. Finisher
2.13. SCX-8128NX Overview
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. Developer_Drum Unit_Developer Unit
3.2.2. Fuser Unit
3.2.3. Transfer roller
3.2.4. Ozone Filter
3.2.5. Pick Up_Reverse_Forward Roller
3.2.6. MP Pick Up_Reverse_Forward
3.2.7. DADF Pick-up roller Assy
3.2.8. DADF friction pad
3.3. Replacing the main SVC part
3.3.1. Left cover
3.3.2. Rear Cover
3.3.3. LSU
3.3.4. Temperature Sensor
3.3.5. HVPS board
3.3.6. OPC Blow-In Fan
3.3.7. OPE Unit
3.3.8. Main board
3.3.9. Ozone Suction Fan
3.3.10. SMPS board
3.3.11. FDB board
3.3.12. Fuser_Exit Drive Unit
3.3.13. Main Drive Unit
3.3.14. Pick-up Drive unit
3.3.15. Toner Duct Drive Unit
3.3.16. Toner Supply Drive Unit
3.3.17. Toner Duct
3.3.18. Waste Toner Container sensor
3.3.19. Auto Size Sensor
3.3.20. Exit Unit
3.3.21. Eraser PBA
3.3.22. Side Unit
3.3.22.1. Fuser out sensor
3.3.22.2. Temperature sensor and Duplex sensor
3.3.22.3. MP unit
3.3.23. Fuser unit
3.3.24. Pick-Up Unit and sensor
3.3.25. Pick-Up sensor
3.3.26. Feed Unit
3.3.27. Registration(Regi.) Unit
3.3.28. DADF Unit
3.3.28.1. DADF Cover
3.3.28.2. DADF Open Cover
3.3.28.3. DADF Stacker
3.3.28.4. DADF Main board
3.3.28.5. DADF motor_solenoid_clutch
3.3.28.6. DADF Regi_Cover_Detect sensor
3.3.28.7. DADF Exit Idle sensor
3.3.28.8. DADF Exit sensor
3.3.28.9. DADF Length_Width sensor
3.3.29. Scanner Unit
3.3.29.1. Scanner joint board
3.3.29.2. Scan glass
3.3.29.3. APS sensor
3.3.29.4. FR module
3.3.29.5. Scanner Assy
3.3.30. Side Cover Open Switch
3.3.31. Front Cover Open Switch
3.3.32. Hard Disk Drive (HDD)
3.3.32.1. Installing the HDD
3.3.32.2. Replacing the HDD
3.3.33. DCF (Double Cassette Feeder)
3.3.33.1. DCF main board
3.3.33.2. DCF Feed Motor
3.3.33.3. DCF Pick Up Motor
3.3.34. Finisher
3.3.34.1. Finisher Main Motor
3.3.34.2. Finisher Board
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. Service Mode (Tech Mode)
4.4.1. Entering/Exiting Service Mode
4.4.2. Service Mode Menu Tree
4.4.3. Information
4.4.3.1. General
4.4.3.2. Supply Status
4.4.3.3. Software Version
4.4.3.4. Service Hours
4.4.3.5. Fault Log
4.4.3.6. Print Reports
4.4.3.7. Export Reports
4.4.4. Maintenance Counts
4.4.4.1. Fault Count
4.4.4.2. Jam Count
4.4.4.3. Part Replacement Count
4.4.5. Diagnostics
4.4.5.1. Engine Diagnostics
4.4.5.2. Fax Diagnostics
4.4.5.3. Scanner Diagnostics
4.4.5.4. Adjustment
4.4.6. Service Functions
4.4.6.1. Main Memory Clear
4.4.6.2. Hard Disk Maintenance
4.4.6.3. Count Setting of Large Page
4.4.6.4. Port
4.4.6.5. Debug Log
4.4.6.6. Capture Log
4.4.6.7. System Recovery
4.4.6.8. TR Control Mode
4.4.6.9. User Data Management
4.4.6.10. Clear System Cache
4.4.6.11. Hibernation
4.4.6.12. Part Replacement Alert
4.4.6.13. FDI
4.5. Error Code and Troubleshooting
4.5.1. Ax-xxxx type error code
4.5.2. Cx-xxxx type error code
4.5.3. Hx-xxxx type error code
4.5.4. H2-xxxx (Finisher) type error code
4.5.5. Mx-xxxx type error code
4.5.6. Sx-xxxx type error code
4.5.7. Ux-xxxx type error code
4.6. Image quality problems and solutions
4.6.1. Vertical Black Lines
4.6.2. Vertical Light or White Lines
4.6.3. Horizontal Periodic Black Lines, Dots
4.6.4. Horizontal Periodic Light/Dark Lines, Dots
4.6.5. Blurred image
4.6.6. Foggy image
4.6.7. Light image
4.6.8. Uneven pitch and jitter image
4.6.9. Skewed image
4.6.10. Poor fusing performance
4.6.11. Stain on the paper back side
4.7. Adjusting the DADF skew
4.8. Other errors
5. SYSTEM DIAGRAM
5.1. Connection Diagram1
5.2. Connection Diagram2
5.3. Connection Diagram3
5.4. Connection Diagram4
6. Reference Information
6.1. Tools for Troubleshooting
6.2. Glossary
6.3. Polaris Training Frequently Asked Questions
Number of pages: 375.
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