Samsung MultiXpress X7600GX MultiXpress X7500GX MultiXpress X7400GX Service Manual

Service Manual Samsung MultiXpress X7600GX MultiXpress X7500GX MultiXpress X7400GX;
This manual is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your Samsung MultiXpress 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 MultiXpress X7600GX MultiXpress X7500GX MultiXpress X7400GX 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 SPECIFICATIONS AND DESCRIPTION
2.1. Product Overview
2.2. Specifications
2.2.1. General Specification
2.2.2. Print Specifications
2.2.3. Scan specification
2.2.4. Copy specification
2.2.5. Fax specification
2.2.6. Paper Handling specification
2.2.7. Network and Software specification
2.2.8. Supplies
2.2.9. Maintenance Parts
2.2.10. Option
2.3. Machine External View
2.4. Feeding System
2.4.1. Feeding System Overview
2.4.2. Main Components and functions
2.4.3. Cassette (Tray)
2.4.4. Pick-Up Unit
2.4.5. Registration Unit
2.4.6. MPF(Multi-Purpose Feeder) Unit
2.5. Image Creation
2.5.1. Printing process overview
2.5.2. Imaging Unit
2.5.2.1. Imaging Unit Overview
2.5.2.2. Drum drive
2.5.2.3. Deve(Development) Unit
2.5.3. Toner Cartridge
2.5.4. ITB (Intermediate Transfer Belt) Unit
2.5.4.1. ITB unit overview
2.5.4.2. Transfer belt drive
2.5.4.3. Transfer belt cleaning
2.5.5. Toner Reservoir Unit
2.6. Fuser Unit
2.6.1. Fuser Unit Overview
2.6.2. Fuser Unit drive
2.6.3. Fuser unit temperature control
2.6.4. Loop Control
2.7. Laser Scanning Unit (LSU)
2.7.1. LSU overview
2.7.2. Laser Scanning Optical path
2.7.3. Laser synchronizing detectors
2.7.4. Automatic line position adjustment
2.8. Drive System
2.8.1. Drive Motors
2.8.2. Main Drive Unit(OPC_Deve_ITB)
2.8.3. Pick-Up and CST Lift drive
2.8.4. Feed Drive
2.8.5. Regi Drive
2.8.6. Fuser(Release)_Exit Drive
2.8.7. Toner Supply_Reservoir Drive
2.8.8. CST Lock Drive
2.8.9. Engage T1 Drive
2.8.10. WTB Drive
2.9. Scanner System
2.9.1. Scanner System Overview
2.9.2. Scanning System Components
2.9.3. Caution for moving the scanner
2.10. Dual Scan Document Feeder(DSDF) for LX model
2.10.1. DSDF overview
2.10.2. Electrical parts location
2.10.3. DSDF Drive System
2.10.3.1. DSDF Original Pick-Up Assembly
2.10.3.2. DSDF Original Regi. Drive
2.10.3.3. Original Scanning and Feed-Out Drive
2.11. Dual Scan Document Feeder(DSDF) for GX model
2.11.1. DSDF overview
2.11.2. Electrical parts location
2.11.3. DSDF Drive System
2.11.3.1. DSDF Original Pick-Up Assembly
2.11.3.2. DSDF Original Pre-Regi Assembly
2.11.3.3. DSDF Original Regi Assembly
2.11.3.4. DSDF Original Scanning Drive Assembly
2.11.3.5. DSDF Original Exit Assembly
2.11.3.6. DSDF Original Lifting Assembly
2.11.3.7. DSDF Original Pick-up_Reverse roller Release Assembly
2.11.3.8. DSDF Scan in Roller Release Assembly
2.12. Hardware Configuration
2.12.1. Main Controller
2.12.2. USB HUB PBA
2.12.3. SMPS (Switching Mode Power Supply) PBA (Type5)
2.12.4. SMPS (Switching Mode Power Supply) PBA (Type4)
2.12.5. Fuser Drive Board (FDB)
2.12.6. HVPS (High Voltage Power Supply) PBA
2.12.7. Eraser PBA
2.12.8. Fuser PBA
2.12.9. Waste Sensor PBA
2.12.10. Paper Size sensor PBA
2.12.11. OPE Unit
2.12.12. DSDF PBA
2.12.13. Scan Joint PBA
2.12.14. CCDM PBA
2.12.15. WLED IF PBA
2.12.16. WLED PBA
2.13. Double Cassette Feeder(DCF) Unit
2.14. High Capacity Feeder(HCF) Unit
2.15. High Capacity Feeder Side Unit (Large Cassette Tray Unit)

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. Maintenance
3.2.1. Machine Cleaning for maintenance
3.2.1.1. Cleaning the LSU window
3.2.1.2. Cleaning the scan glass
3.2.1.3. Cleaning the DSDF white bar_CIS
3.2.1.4. Cleaning the paper dust stick
3.2.1.5. Cleaning the LSU window
3.2.2. Replacing the maintenance part
3.2.2.1. Drum Unit
3.2.2.2. Development Unit (Deve Unit)
3.2.2.3. ITB cleaner
3.2.2.4. ITB Unit
3.2.2.5. Fuser Unit
3.2.2.6. Pick-Up_Separation_Forward roller
3.2.2.7. MP Pick up_Reverse_Forward roller
3.2.2.8. DSDF Pick-up roller Assy (LX model)
3.2.2.9. DSDF reverse roller (LX model)
3.2.2.10. DSDF Pick-up roller Assy (GX model)
3.2.2.11. DSDF reverse roller Assy (GX model)
3.3. Replacing the main SVC part
3.3.1. Left Cover
3.3.2. Rear Cover
3.3.3. HVPS board
3.3.4. Temperature_Humidity Sensor
3.3.5. LSU
3.3.6. OPE Unit
3.3.7. Main board
3.3.8. Toner Supply Drive Unit
3.3.9. SMPS board
3.3.9.1. SMPS board 1
3.3.9.2. SMPS board 2
3.3.9.3. SMPS board 3
3.3.10. FDB (Fuser Drive Board)
3.3.11. SMPS Fan
3.3.12. Main Drive Unit
3.3.13. Inductor Unit
3.3.14. Auto Closing Unit
3.3.15. Pick-up Drive Unit 1
3.3.16. Pick-up Drive Unit 2
3.3.17. Regi Drive Unit
3.3.18. Feed_MP Drive Unit
3.3.19. Fuser Fan
3.3.20. Fuser_Exit Drive unit
3.3.21. Side Door Open sensor
3.3.22. Auto Size sensor
3.3.23. Inner Cover
3.3.24. Front Cover Open sensor
3.3.25. Waste Toner Container sensor
3.3.26. WTB Drive Unit
3.3.27. HDD (Hard Disk Drive)
3.3.28. LSU Fan
3.3.29. Side Unit
3.3.29.1. Fuser-Out Sensor
3.3.29.2. Feed 2 sensor
3.3.29.3. MP Unit
3.3.29.4. MP empty sensor
3.3.29.5. MP paper length sensor
3.3.29.6. MP solenoid
3.3.30. Pick-Up Unit 2
3.3.30.1. Pick up Lifting sensor and Empty sensor
3.3.30.2. Pre-Feed sensor 2
3.3.31. Pick-Up Unit 1
3.3.31.1. Pick-Up Lifting sensor and Empty sensor
3.3.31.2. Pre-Feed sensor 1
3.3.32. Exit Unit
3.3.32.1. Return sensor
3.3.32.2. Duplex 1 sensor
3.3.32.3. Exit 1 Bin Full sensor
3.3.32.4. Exit Gate Solenoid
3.3.33. DSDF Unit for LX model
3.3.33.1. DSDF PBA
3.3.33.2. DSDF main motor
3.3.33.3. DSDF paper length sensor
3.3.34. DSDF Unit for GX model
3.3.34.1. DSDF PBA
3.3.34.2. DSDF Stacker Sensor
3.3.35. Scanner Unit(Platen Unit)
3.3.35.1. Scan Glass
3.3.35.2. LED Lamp Module
3.3.35.3. Scanner Imaging Unit
3.3.35.4. Scan Joint PBA
3.3.35.5. APS Sensor
3.3.36. Reservoir Unit
3.3.37. Double Cassette Feeder(DCF) Unit
3.3.37.1. DCF Feed Motor
3.3.37.2. DCF Pick-up Motor
3.3.37.3. DCF PBA
3.3.38. High Capacity Feeder(HCF) Unit
3.3.38.1. HCF Feed Motor
3.3.38.2. HCF Pick-up Motor
3.3.38.3. HCF PBA
3.3.38.4. HCF Lift-up Motor
3.3.38.5. HCF Shaft Motor
3.3.39. High Capacity Feeder Side Unit (Large Cassette Tray Unit)
3.3.39.1. LCT Feed Motor
3.3.39.2. LCT Pick-up Motor
3.3.39.3. LCT PBA
3.3.39.4. LCT Lift-up Motor

4. TROUBLESHOOTING
4.1. Control panel
4.1.1. Display screen and useful buttons
4.1.1.1. Menu navigation
4.1.1.2. Home Screen Overview
4.1.1.3. Customizing your home screen
4.1.1.4. Notification Bar
4.2. Understanding the LEDs
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 the 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
4.5.5. 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. Count Setting of Large Page
4.5.6.4. Network Port
4.5.6.5. Debug Log
4.5.6.6. Capture Log
4.5.6.7. Network Packet Capture
4.5.6.8. System Recovery
4.5.6.9. TR Control Mode
4.5.6.10. Clear System Cache
4.5.6.11. Hibernation
4.5.6.12. Paper Low Warning Message
4.5.6.13. Part Replacement Alert
4.5.6.14. FDI
4.5.6.15. EIUL (End of Image Unit Life)
4.5.6.16. SFE (Special Feature Enablement)
4.5.6.17. Dealer ID
4.5.6.18. Envelope Rotate
4.6. Error Code and Troubleshooting
4.6.1. 11-2Txx (Paper mismatch error)
4.6.2. 61-1xxx (System Error)
4.6.3. A1-xxxx (Motor error)
4.6.4. A2-xxxx (Fan error)
4.6.5. A3-xxxx (Sensor error)
4.6.6. C1-xxxx (Toner cartridge error)
4.6.7. C3-xxxx (Drum unit error)
4.6.8. C5-xxxx (ITB unit error)
4.6.9. C6-xxxx (Fuser unit error)
4.6.10. C7-xxxx (Waste toner container error)
4.6.11. C8-xxxx (Developer error)
4.6.12. C9-xxxx (Transfer roller error)
4.6.13. H1-xxxx (Double Cassette Feeder Unit Error)
4.6.14. H1-xxxx (High Capacity Feeder Unit Error)
4.6.15. H1-xxxx (High Capacity Feeder Side Unit(LCT Unit) Error)
4.6.16. H2-xxxx (Finisher error)
4.6.17. Mx-xxxx (Jam error)
4.6.18. Mx-xxxx (Tray not install_Paper empty_Outbin full)
4.6.19. Sx-xxxx (System error)
4.6.20. U1-xxxx (Fuser error)
4.6.21. U2-xxxx (LSU error)
4.6.22. U3-xxxx (Document Feeder error_DSDF for LX model)
4.6.23. U3-xxxx (Document Feeder error_DSDF for GX model)
4.7. Image quality problems and solutions
4.7.1. Vertical Black Band
4.7.2. Vertical White Band, Light Band
4.7.3. Horizontal periodic Black Band or Dot
4.7.4. Horizontal periodic Light/Dark Band or Dot
4.7.5. Foggy Image
4.7.6. Light Image
4.7.7. Blurred Image
4.7.8. Incorrect color registration
4.7.9. Uneven pitch and jitter image
4.7.10. Skewed image
4.7.11. Blank copy
4.7.12. Poor fusing performance
4.7.13. Stain on the paper back side
4.7.14. Setting Standard Tone
4.7.15. Duplex Blur_White Spot_Blur on color print-out
4.8. Other Errors
4.8.1. Image system problem
4.8.2. Fuser problem
4.8.3. Scanner and Document Feeder problem
4.8.4. Drive unit problem
4.8.5. Feeding system problem
4.8.6. LSU problem
4.8.7. Electrical circuit problem
4.9. Adjusting the DSDF skew

5. CONNECTION DIAGRAM
5.1. Connection Diagram (FUSER_EXIT_DUPLEX_TONER)
5.2. Connection Diagram (Scanner)
5.3. Connection Diagram (LSU_OPE_USB)
5.4. Connection Diagram (Side_MP_Feed_Regi_Pick-Up)
5.5. Connection Diagram (OPC_WTB_CST Lock)
5.6. Connection Diagram (HVPS_SMPS_FDB)

6. REFERENCE INFORMATION
6.1. Tools for Troubleshooting
6.2. Glossary
6.3. Model Name and Code
6.4. Document Revision List