Epson SEPG00004 User Manuals

Table of Contents

• 1.4.5.4 Setup Menu

  50
• 1.4.5.5 Maintenance Menu

  51
• 1.1 Overview

  12
• 1.4.6 Service Operations

  52
• 1.2 Controller Unit Specifications

  15
• 1.5 About RAM Expansion

  53
• 1.2.1 Controller Basic Specifications

  15
• 1.6 Engine Restrictions

  54
• 1.2.2 Engine Specifications

  15
• 1.6.1 Restriction on Printing Speed

  54
• 1.2.3 Process Specification

  20
• 1.6.1.1 Toner Duty Restrictions

  54
• 1.2.4 Paper Specification

  21
• 1.7 Handling Precautions

  55
• 1.2.5 Sensors

  23
• 1.7.1 Caution when there is a Power Failure

  55
• 1.2.6 Reliability, Durability, Serviceability

  26
• 1.7.2 Caution Regarding High Temperature Parts

  55
• 1.2.7 Operating Conditions (Including Consumables)

  27
• 1.2.9 Electrical Characteristics

  29
• 1.2.10 Applicable Standards and Regulations

  30
• 1.2.11 Consumable Specifications

  31
• 2.1 Mechanism Overview

  58
• 1.2.11.1 Developer cartridges

  31
• 2.1.1 Gear Roller Arrangement

  59
• 1.2.11.2 Photoconductor kit

  32
• 2.2 Printing Process

  67
• 1.2.11.3 Waste Toner Collector

  32
• 2.2.1 Paper Feed Mechanism

  68
• 1.2.11.4 Fuser Kit

  33
• 2.2.1.1 Tray 1

  68
• 1.2.11.5 Transfer Belt Unit

  33
• 2.2.1.2 Tray 2 (Cassette 1)

  69
• 1.3 Interface Specifications

  34
• 2.2.1.3 Tray 3 (Cassette 2)

  69
• 1.3.1 Parallel Interface Specifications

  34
• 2.2.1.4 Timing Roller

  70
• 1.3.2 Ethernet Interface Specifications

  35
• 2.2.2 Charging Process

  70
• 1.3.3 Optional Interface Specifications

  35
• 2.2.3 Exposure Process

  72
• 1.4 Control Panel

  37
• 2.2.4 Development Process

  73
• 1.4.1 Exterior View and Names

  37
• 2.2.4.1 Toner Cartridge Rack

  73
• 1.4.1.1 LED Description

  37
• 2.2.4.2 Toner Cartridge

  75
• 1.4.2 Button Functions

  38
• 2.2.4.3 Names of Unit Contacting Terminals

  78
• 1.4.3 One Touch Setting Modes

  39
• 2.2.5 Transfer Process

  79
• 1.4.4 Panel Setting Item List

  40
• 2.2.5.1 Mid-Transfer Belt Unit

  79
• 1.4.5 Explanation of Each Setting Menu and Items

  47
• 2.2.5.2 Mid-Transfer

  79
• 1.4.5.1 Printing Menu

  47
• 2.2.5.3 Paper Transfer

  80
• 1.4.5.2 Tray Menu

  48
• 2.2.6 Waste Toner Bottle

  83
• 1.4.5.3 Config Menu

  48
• 2.2.7 Suction Process

  84
• 2.2.8 Fusing Process

  84
• 4.2.3.2 Operation Panel Removal

  124
• 2.2.8.1 Fusing Unit

  84
• 4.2.3.3 Front Inner Cover Removal

  124
• 2.2.8.2 Fusing Temperature Control

  86
• 4.2.3.4 Top Cover Removal

  125
• 2.2.8.3 Fusing Oil Roll

  89
• 4.2.3.5 Left Cover Removal

  125
• 2.2.9 Paper Eject Process

  89
• 4.2.3.6 Rear Controller Cover Removal

  126
• 2.2.9.1 Duplex Unit (option)

  90
• 4.2.3.7 Rear Cover Removal

  127
• 2.3 Controller Board (C314MAIN) Operating Principles

  92
• 4.2.3.8 Rear Right Cover Removal

  127
• 2.3.1 Specification

  92
• 4.2.3.9 Left Rear Cover Removal

  128
• 4.2.3.10 Rear Left Cover Removal

  128
• 4.2.4 C314MAIN Board

  129
• 4.2.4.1 C314MAIN Board Removal

  129
• 4.2.4.2 Controller Box Removal

  131
• 3.1 Troubleshooting Method

  94
• 4.2.5 MCU (PWB-A Board) Removal

  131
• 3.1.1 Troubleshooting Procedure

  94
• 4.2.6 PU1 (Power Supply Board) Removal

  132
• 3.1.2 Power is not Applied

  96
• 4.2.7 High Voltage Board (HV1, HV2) Removal

  133
• 3.1.3 Self Check Function

  96
• 4.2.7.1 HV1 (High Voltage Board) Removal

  133
• 3.2 Printer Message

  98
• 4.2.7.2 HV2 (High Voltage Board) Removal

  133
• 3.2.0.1 Messages

  98
• 4.2.8 Fusing Motor Removal

  134
• 4.2.9 Transfer Motor Removal

  135
• 3.2.2 Details of Error Messages and Remedies

  101
• 4.2.9.1 PU1 Support Plate Removal

  135
• 3.2.3 Details of Warning Messages and Remedies

  104
• 4.2.9.2 Transfer Motor Removal

  135
• 4.2.10 Fusing Pressure Motor Removal

  136
• 3.2.4.1 Engine Related Service Call Error Messages

  106
• 4.2.11 Fan Motor Removal

  136
• 3.2.4.2 Engine Related Service Call Error Troubleshooting

  107
• 4.2.11.1 Power Supply Fan Motor Removal

  136
• 3.2.4.3 Controller Related Service Call Error Messages

  114
• 4.2.11.2 Fusing Fan Motor Removal

  137
• 3.3 Image Quality Troubleshooting

  116
• 4.2.11.3 Transfer Belt Fan Motor Removal

  137
• 4.2.11.4 Cooling Fan Motor Removal

  138
• 4.2.12 Laser Safety Switch (CDRH-SW) Removal

  138
• 4.2.13 Waste Toner Full Sensor Removal

  139
• 4.2.14 MP Tray Paper Load

  140
• 4.1 Overview

  120
• 4.2.14.1 Paper Load Cover Removal

  140
• 4.1.1 Cautions

  120
• 4.2.14.2 MP Tray Paper Load Solenoid Removal

  140
• 4.1.2 Service Tools

  120
• 4.2.15 MP Tray Paper Load Unit

  141
• 4.1.3 Screws, Small Parts

  121
• 4.1.4 Fuses

  121
• 4.2.15.2 MP Tray Paper Load Unit Removal

  141
• 4.2 Disassembling Procedure

  122
• 4.2.16 Paper Cassette

  142
• 4.2.1 Overview

  122
• 4.2.16.1 Paper Size Switch Removal

  142
• 4.2.2 Before Disassembling the Printer

  123
• 4.2.16.2 Paper Near Empty Sensor Removal

  142
• 4.2.3 Outer Cover Removal

  123
• 4.2.16.3 Cassette Paper Load Solenoid Removal

  142
• 4.2.3.1 Front Cover Removal

  123
• 4.2.17 Transfer Mechanism

  143
• 4.2.17.1 Timing Roller Solenoid Removal

  143
• 4.2.26.6 Reverse Motor Removal

  159
• 4.2.17.2 Middle Roller Solenoid Removal

  143
• 4.2.26.7 Duplex Paper Load Motor Removal

  159
• 4.2.17.3 Lower Paper Load Guide Removal

  144
• 4.3 Program ROM Update

  160
• 4.2.17.4 Timing Sensor Removal

  144
• 4.3.1 Program ROM Update

  160
• 4.2.18 OHP Sensor Removal

  144
• 4.3.1.1 Error Indication and Remedies

  160
• 4.2.19 Developer Mechanism

  145
• 4.3.2 DIMM Module Copy

  161
• 4.2.19.1 Toner Empty Sensor Removal

  145
• 4.2.19.2 Front Side Rack Bearing Removal

  145
• 4.2.19.3 Rack Lock Lever Removal

  146
• 4.2.19.4 Rack Black Position Sensor Removal

  146
• 4.2.19.5 Developer Motor Assy. Removal

  147
• 5.1 Adjustment

  163
• 4.2.19.6 Rear Rack Bearing Removal

  147
• 4.2.19.7 Rack Removal

  148
• 4.2.20 PH (Print Head) Mechanism

  149
• 4.2.20.1 PH Connector Removal

  149
• 6.1 Maintenance

  165
• 4.2.20.2 PH Cover Removal

  149
• 6.1.1 Replacement Parts

  165
• 4.2.20.3 PH Removal

  150
• 6.1.2 Cleaning

  165
• 4.2.21 Transfer Mechanism

  150
• 4.2.21.1 Transfer Roller Pressure Solenoid Removal

  150
• 4.2.21.2 Transfer Roller Pressure Sensor Removal

  151
• 4.2.21.3 Suction Fan Motor Removal

  152
• 4.2.21.4 Middle Paper Sensor Removal

  152
• 7.1 Overview

  167
• 4.2.22 Belt Cleaner Mechanism

  153
• 7.1.1 MCU Internal Connection Diagram

  167
• 4.2.22.1 Left Upper Support Plate Removal

  153
• 7.2 Component Layout

  169
• 4.2.22.2 Left Frame Plate Removal

  153
• 7.3 Exploded Diagram

  172
• 7.4 Parts List

  173
• 4.2.22.4 PWB-I (Belt Cleaner Control Board) Removal

  154
• 4.2.23 Fusing Mechanism

  155
• 7.5 Circuit Diagram

  181
• 4.2.23.1 Pressure Roller Estrangement Sensor Removal

  155
• 4.2.24 Paper Eject Mechanism

  155
• 4.2.24.1 Paper Eject Sensor Removal

  155
• 4.2.25 Rack Motor Assy.

  156
• 4.2.25.1 Power Switch Removal

  156
• 4.2.25.2 Rack Motor Assy. Removal

  156
• 4.2.26 Duplex Unit

  157
• 4.2.26.1 Duplex Paper Feed Sensor Removal

  157
• 4.2.26.2 Duplex Unit Board Cover Removal

  157
• 4.2.26.3 Duplex Unit Board (PWB-AD) Removal

  158
• 4.2.26.4 Motor Cover Removal

  158
• 4.2.26.5 Motor Plate Removal

  159