Table Of Contents; Contents - Oki OKIFAX4550 Maintenance Manual

1. GENERAL INFORMATION ................................................................................. 8
1.1 General Performance ........................................................................................................... 8
1.2 General User's Functions .................................................................................................... 11
1.3 General Maintenance Functions .......................................................................................... 14
1.4 General Appearance ............................................................................................................ 15
1.5 Basic Performance Specifications ....................................................................................... 17
1.6 Reports and Lists ................................................................................................................. 27
2. INSTALLATION PROCEDURE .......................................................................... 57
2.1 Setup Information ................................................................................................................. 57
2.1.1 General ................................................................................................................... 57
2.1.2 Site Selection .......................................................................................................... 59
2.1.3 Unpacking ............................................................................................................... 61
2.1.4 Identification Contents ............................................................................................ 63
2.1.5 Installation of Attachments ...................................................................................... 64
2.1.6 AC Cord Connection ............................................................................................... 69
2.1.7 Telephone and Line Connections ........................................................................... 70
2.1.8 Packing for Shipment .............................................................................................. 70
2.2 Programming and Initial Settings ......................................................................................... 71
2.2.1 Initial Settings .......................................................................................................... 71
2.2.1.1
2.2.1.2
2.2.1.3
2.2.1.4
2.2.1.5
2.2.1.6
2.2.1.7
2.2.1.8
2.2.1.9
2.2.1.10
2.2.1.11
3. BRIEF TECHNICAL DESCRIPTION ................................................................... 144
3.1 Fundamentals of the Electro-Photographic Process ............................................................ 145
3.2 Actual Electo-photographic Process .................................................................................... 147
3.3 Boards and Units ................................................................................................................. 148
3.3.1 Boards and Units .................................................................................................... 148
3.4 Overall Dimension and Mechanical Structure of OKIFAX4550/OKIOFFICE87 ................... 150
4. MECHANICAL DISASSEMBLY AND REASSEMBLY ......................................... 151
4.1 Precautions for Parts Replacement ..................................................................................... 151
4.2 Tools .................................................................................................................................... 153
4.3 How to Disassemble and Reassemble ................................................................................ 153
4.3.1 LED Print Head ....................................................................................................... 157
4.3.2 ID Unit, Rear-Cover, Cover-Main, Board-NCU or Board-G4N ................................ 158
4.3.3 Unit-046 OPE-Panel ............................................................................................... 160
4.3.4 Separation Rubber, Roller Assembly Sensor ......................................................... 161
4.3.5 Roller Assembly-ADF, CIS (contact image sensor), Lever-PC1 and PC2 .............. 162
4.3.6 Board-46F, Board-R46 Power Supply Unit, Board HV-P6L .................................... 165
4.3.7 Printer Unit Section ................................................................................................. 166
4.3.8 Transfer Roller ........................................................................................................ 167
4.3.9 High-Voltage Power Supply Unit (HV-P2H) ............................................................ 168
4.3.10 Holder Assembly ..................................................................................................... 169
4.3.11 Plate-Side M and Gear-Idle .................................................................................... 170
4.3.12 Registration Roller .................................................................................................. 171
4.3.13 Drive Shaft E (Eject) and Eject Roller ..................................................................... 172
4.3.14 Heat Assembly ........................................................................................................ 173
4.3.15 Pressure Roller B (Back Up Roller) ........................................................................ 174
41309401TH Rev.4

CONTENTS

General Procedure of Key Operation ..................................................... 71
Technical Functions ................................................................................ 75
Technical Functions Example ................................................................. 90
User's Functions .................................................................................... 99
User's Functions Example ...................................................................... 122
Clock Adjustment ................................................................................... 131
Dual Access Operation ........................................................................... 132
System Data Programming .................................................................... 133
Dial Parameters Settings ....................................................................... 135
Off-line Tests .......................................................................................... 139
On-line Tests .......................................................................................... 141
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