Xerox Phaser 3425 Manuals

Xerox Phaser 3425 Manuals

Manuals and User Guides for Xerox Phaser 3425. We have 1 Xerox Phaser 3425 manual available for free PDF download: Service Manual

Xerox Phaser 3425 Service Manual

Xerox Phaser 3425 Service Manual (180 pages)

Laser Printer

Brand: Xerox | Category: Printer | Size: 10 MB

Table of Contents

Service Manual
3
Service Terms
5
Symbols Marked on the Product
6
Power Safety Precautions
7
Power Source
7
Electrostatic Discharge (ESD) Precautions
8
Service Safety Summary
9
- General Guidelines
  9
- Warning Labels
  9
- Safety Interlocks
  9
- Servicing Mechanical Components
  10
Regulatory Specifications
11
- In the European Union
  12
- Table of Contents
  15
1 General Information

21
- Printer Introduction and Overview
  22
- Printer Configurations
  23
- Parts of the Printer
  24
  - Exterior
    24
- Phaser 3425 Front Panel Configuration
  25
  - Phaser 3425 Laser Printer Rear View
    26
- Main Board
  27
- Service Parts
  28
- Consumables
  29
  - Supply Life Counter Behavior
    30
- Printer Specifications
  31
2 Theory of Operation

35
- Overview of the Phaser 3425 Laser Printer
  36
  - Summary of the Printing Process
    36
  - Print Modes
    37
- Printer Controls
  38
  - Paper Size Control
    38
  - Selective Control; Paper Pick
    38
  - Laser Light Intensity Control
    39
  - Process Control
    39
  - Toner Control
    39
  - Fuser Control
    39
- Paper Path of the Printer
  40
- Duplex Paper Path
  40
- Major Assemblies and Functions
  41
  - Main Board
    41
    
    Power Supply Board
    42
    
    Main Board Wiring Diagram
    42
  - Print Cartridge
    44
  - Laser Scan Unit (LSU)
    44
  - Transfer Roller
    45
  - Fuser Assembly
    45
  - Paper Feed Drive
    45
  - Paper out Sensor
    45
  - Paper Feed Sequence
    46
  - Registration Sensor
    46
  - Paper Transport
    46
  - Fuser Exit Sensor
    47
  - Duplex Unit
    47
3 Error Messages and Codes

49
4 General Troubleshooting

69
5 Print-Quality Troubleshooting

83
- Print-Quality Problems Overview
  84
- Defects Associated with Specific Printer Components
  84
- Front Panel Test Print
  85
  - Deletions
    86
  - Fusing
    87
  - Resolution
    87
  - Registration and Skew
    88
  - Skips or Smears
    88
- Print-Quality Troubleshooting
  89
6 Adjustments and Calibrations

93
- Margin Calibration
  93
- Margin Calibration
  94
- Resetting NVRAM
  94
7 Cleaning and Maintenance

95
- Recommended Tools
  95
- Service Preventive Maintenance Procedure
  95
- Cleaning
  96
- Service Preventive Maintenance Procedure
  96
  - Recommended Tools
    96
- Printing a Cleaning Sheet
  97
8 Service Parts Disassembly

99
- Overview
  100
  - Standard Orientation of the Printer
    100
- General Notes on Disassembly
  101
  - Preparation
    101
- Removing Service Parts and Consumables
  102
- Print Engine Disassembly
  105
  - Right Cover Assembly (PL 9.2.2)
    105
  - Left Cover Assembly (PL 9.2.4)
    106
  - Top Cover Assembly (PL 9.2.1)
    107
  - Tray 1 Cover Assembly (PL 9.1.2)
    108
  - Retard Assembly (PL 9.3.7)
    110
  - Front (Inner) Cover (PL 9.2.5)
    110
  - Tray 1 Lift Plate (PL 9.1.3)
    111
  - Rear Cover Assembly (PL 9.2.3)
    112
  - Front Panel Assembly (PL 9.2.1.8)
    113
  - Cover Open Interlock Switch (PL 9.2.1.16)
    114
  - NIC Board (PL 9.1.41)
    115
  - Main Board (PL 9.1.10)
    116
  - Main Drive Assembly (PL 9.1.11)
    117
  - Tray 2 Solenoid (PL 9.1.28)
    119
  - Tray 2 no Paper Sensor (PL 9.3.44)
    119
  - Paper Size Sensor (PL 9.3.36)
    120
  - Exit Motor Drive Assembly (PL 9.1.20)
    120
  - Main Fan Assembly (PL 9.1.19)
    121
  - Sub Fan Assembly (PL 9.3.35)
    122
  - Exit Roller Assembly (PL 9.3.21) Transport Roller Assembly (PL9.3.24)
    123
  - Laser Assembly (PL 9.1.16)
    125
  - Print Cartridge Interconnect Assembly (PL 9.3.53)
    127
  - Registration Transport Assembly (PL 9.1.9)
    128
  - Registration Sensor (PL 9.7.10)
    129
  - Tray 1 Feed Roller Assembly (PL 9.3.2)
    129
  - Tray 1 Pick Roller (PL 9.3.2.4)
    133
  - Tray 2 Retard Assembly (PL 9.3.7)
    134
  - Tray 2 Paper Pick Assembly (PL 9.3.67)
    134
  - Tray 2 Pick Roller (PL 9.3.67.3)
    139
  - Power Supply Board (PL 9.1.13)
    140
  - Duplex Assembly (PL 8.8.2)
    143
  - Exit Sensor (PL 9.3.62)
    143
9 Parts Lists

145
- Using the Parts List
  146
- Print Engine Parts
  147
  - Main Unit
    147
  - Covers
    150
  - Frame 1 Assembly
    152
  - Frame 2 Assembly
    155
  - Fuser Assembly
    158
  - Main Drive Motor Assembly
    159
  - Exit Drive Motor Assembly
    160
  - Registration Transport Assy
    161
  - Power Supply/Duplex Assembly
    163
  - Paper Tray
    164
  - Optional Lower Feeder Assembly
    165
- Xerox Supplies
  168
10 Wiring Diagrams

170
- Print Engine Interconnect Diagram
  171
  - Map 1 Main Board
    172
- Connection Diagram
  174

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