Samsung SCX-3400, SCX-3400F, SCX-3400W, SCX-3400FW, SCX-3405, SCX-3405F, SCX-3405W, SCX-3405FW, Service Manual

This service manual is for the Samsung SCX-3400, SCX-3400F, SCX-3400W, SCX-3400FW, SCX-3405, SCX-3405F, SCX-3405W, SCX-3405FW. It contains detailed diagrams, pictures, and procedures for diagnosing and repairing your Samsung photocopier. Whether you're a professional mechanic or a DIY enthusiast, this manual provides valuable information.

You can print, zoom, or read any diagram, picture, or page from this service manual. Each chapter is fully detailed and contains simulation codes, trouble codes, maintenance procedures, reset procedures, and diagnose procedures for the Samsung photocopier models listed above.

The table of contents includes:

• PRECAUTIONS
  • Safety warning
  • Caution for safety
    • Toxic material
    • Electric shock and fire safety precautions
    • Handling precautions
    • Assembly and Disassembly precautions
    • Disregarding this warning may cause bodily injury
  • ESD precautions
• PRODUCT SPECIFICATION AND DESCRIPTION
  • Product Specification
    • Product Overview
    • Specifications
      • General Print Engine
      • Copier
      • Scan Specification
      • Fax
      • Controller and Software
      • Paper Handling
      • Consumables
      • Maintenance Part
      • Reliability and Service
      • Environment
      • Accessories
    • Model Comparison Table
  • System Overview
    • Front View
    • Rear View
    • Paper Path
    • System Layout
      • Feeding Part
      • Transfer Roller
      • Drive Unit
      • Fuser Unit
      • LSU (Laser Scanner Unit)
      • Toner Cartridge
    • Hardware configuration
      • Main board
      • OPE board
      • Fax board
      • Wireless LAN board (wireless model only)
      • SMPS/HVPS board
      • Electrical Parts Location
    • Engine F/W Contol Algorithm
      • Feeding
      • Transfer
      • Fusing
      • LSU
    • Software Descriptions
      • Software system overview
      • Architecture
      • Data and Control Flow
• DISASSEMBLY AND REASSEMBLY
  • Precautions when replacing parts
    • Precautions when assembling and disassembling
    • Preautions when handling PBA
    • Releasing Plastic Latches
  • Screws used in the printer
  • Replacing the Main SVC parts
    • Right and Left cover
    • Scanner Unit
    • ADF Unit
    • CIS Unit
    • OPE Unit
    • Front Cover
    • Middle Cover
    • Rear Cover
    • Main board
    • WLAN board
    • Fax board
    • SMPS/HVPS board
    • Fuser Unit
    • Drive Unit
    • LSU
    • Feed Sensor PBA
    • Pick up roller
    • Motor
    • Transfer roller
• ALIGNMENT AND TROUBLESHOOTING
  • Alignment and Adjustments
    • Control Panel
    • Understanding the status LED
    • JAM removal
      • Clearing original document jams
      • Clearing paper jams
    • Useful menu item for service
    • Periodic Defective Image
    • Useful management tools
      • Using Samsung Easy Printer Manager (Windows and Macintosh only)
      • Using Samsung Printer Status (Windows only)
      • Using Smart Panel (Linux only)
      • Using SyncThru Web Service (SWS)
    • Updating Firmware
      • Update the firmware by using the USB port
      • Update the firmware by using the network
    • Tech Mode
      • Tech mode (4 in 1 model)
      • Tech Mode (3 in 1 model)
    • EDC program (3 in 1 model only)
  • Troubleshooting
    • Procedure of checking the symptoms
      • Basic Check List
    • Error Code and Troubleshooting
    • Image quality problem
    • Other errors
• SYSTEM DIAGRAM
  • Block Diagram (4 in 1)
  • Block Diagram (3 in 1)
  • Connection Diagram (4 in 1)
  • Connection Diagram (3 in 1)
• REFERENCE INFORMATION
  • Tool for Troubleshooting
  • Glossary
  • The Sample Pattern for the Test
  • Selecting a location

Number of pages: 129