Samsung ML-920 Manuals

Manuals and User Guides for Samsung ML-920. We have 1 Samsung ML-920 manual available for free PDF download: Service Manual

Samsung ML-920 Service Manual

Samsung ML-920 Service Manual (200 pages)

Digital Laser MFP

Brand: Samsung | Category: All in One Printer | Size: 11.5 MB

Table of Contents

Table of Contents
4
1 Precautions

7
2 Specifications

10
- General Specifications
  10
- Printer Specifications (SF-835P Only)
  11
- Facsimile Specification
  11
- Scanner Specification
  12
- Copy Specification
  12
- Telephone Specification
  13
- Consumables
  13
3 Disassembly and Reassembly

14
- General Precautions on Disassembly
  14
- Cover Rear Ass'y
  15
- Rear Cover
  15
- Scanner Ass'y
  16
- OPE Ass'y
  17
- ADF Upper Ass'y
  18
- Guide Lower Ass'y
  19
- Housing Lower Ass'y
  20
- Side Cover Ass'y Page
  22
  - MP-Tray
    22
  - Transfer Roller Ass'y
    23
- Fuser Ass'y
  24
- Exit Ass'y
  25
- Cover Paper Exit Ass'y
  26
- Drive Ass'y
  27
- Smps
  28
- Lsu
  29
- Main Frame Ass'y
  30
  - Cover Exit Rear
    31
  - MP Ass'y
    32
  - Feed Ass'y
    33
  - Pick up Ass'y
    33
  - Main PBA
    34
- SCF Ass'y
  35
4 Maintenance & Troubleshooting

38
- Preventative Maintenance
  38
- Error Messages
  39
- User Mode
  41
- Tech Mode
  42
  - How to Enter Service Mode
    42
  - Setting-Up System in Tech Mode
    43
  - System Data
    44
  - Memory Clear
    44
  - Maintenance
    45
  - Report/Help
    48
  - Firmware Upgrade
    49
    
    Local Machine
    49
    
    Remote FAX
    49
- Identify Sale Date
  50
- Engine Test Mode
  51
  - To Enter the Engine Test Mode
    51
  - Diagnostc
    51
  - Engine Print
    51
- Troubleshooting
  52
  - Print Quality
    52
    
    Abnormal Image Printing and Defective Roller
    54
    
    No Image
    55
    
    All Black
    57
    
    Vertical White Line (Band)
    58
    
    Dark Image
    59
    
    Background
    60
    
    Ghost
    61
    
    Black Dot
    62
    
    Horizontal Band
    63
    
    Irregular Density
    64
    
    White Spot
    65
    
    Trembling at the End When OHP Printing
    66
    
    Poor Fusing Grade
    67
  - Malfunction
    68
    
    No Power (LCD no Display LED Off)
    70
    
    Fuser Error
    71
    
    Paper Jam (Mis-Feeding)
    72
    
    Paper Jam(Jam 1)
    73
    
    Engine Error
    74
  - Toner Cartridge and Drum Cartridge Service
    75
    
    Signs and Measures at Poor Toner Cartridge
    76
  - The Cause and Solutions of Bad Environment of the Software
    79
    
    The Printer Is Not Working (1)
    79
    
    The Printer Is Not Working (2)
    79
    
    Abnormal Printing
    80
    
    SPOOL Error
    80
5 Exploded View & Parts List

81
6 Block Diagrams

118
7 Connection Diagram

119
8 Dual Line Option

120
- Introduction
  120
  - Master Board Role
    120
  - Slave Board Role
    120
- Specification
  120
- Dual Line Board Connector Pin Assignment
  121
- Troubleshooting of Dual Line Board
  122
  - Troubleshooting Flow Chart
    122
  - Dual Line Board Error
    122
  - Modem Interface Error
    123
  - LIU Interface Error
    124

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