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Service Guide OF1000
Chapter 0 About This Manual

OKIFAX 1000
Facsimile Product

Adobe Acrobat printable reference
copy of the OKIDATA Service Training Manual.
09/17/97

Note: This Adobe Acrobat version of the Okidata Service Training Manual was built with the
pictures rendered at 300 dpi, which is ideal for printing, but does not view on most
displays well.

Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Table of Contents Page

Service Guide OF1000
0 About This Manual
Front Cover 1
Manual Copyright 2
1 Product Specifications
1.1.01 General Information 3
1.2 General Facsimile Specifications 4
1.3 Communications 5
1.4 Printer Specifications 6
1.5 User Functions 7
1.6 Scanner Specifications 8
1.7 Consumable Items 9
1.8 Options 10
1.9 Agency Approvals 11
1.10 Reliability Data 12
2 Principles of Operation
2.1 Principles Of Operation 13
....2.1.01 Compatibility 14
....2.1.02 Communications Mode 15
....2.1.03 Modem Operation 16
....2.1.04 Automatic Fall-Back Mode 17
....2.1.05 Telephone Line Connection 18
....2.1.06 Error Correction Mode (ECM) 19
....2.1.07 Major Assemblies 20
........Okifax 1000 Cross-Sectional View 21
........Copy Function Block Diagram 22
........Report Print Function Block Diagram 23
2.2 Transmitter Theory Of Operation - Typical Transmission 24
....300 bps Transmit Handshake Operation Diagram 25
....300 bps Receive Handshake Procedure Diagram 26
....G3 Transmit Functional Block Diagram 27
....2.2.02 Operator Panel 28
....2.2.03 Automatic Document Feeder (ADF) 29
....2.2.04 Scanner Assembly 30
....2.2.05 Encoder 31
....2.2.06 Modem 32
....2.2.07 Network Control Board (NCU) 33
....2.2.08 Line Board 34
2.3 Receiver Theory Of Operation 35
....G3 Receive Operation Block Diagram 36
2.4 LED Printer - Principal Components 37
....2.4.02 Printer Control Board (PCNT-150) 38
....2.4.03 Power Supply Board (PWU-150) 39
Table of Contents Page
........Power Supply Block Diagram 40
....2.4.04 Sub-Power Supply Board (PSUB-150) 41
........Sub-Power Supply Board Block Diagram 42
....2.4.05 Fuser Unit 43
....2.4.06 Main Motor (Drum Motor) 44
....2.4.07 LED Array 45
....2.4.08 DC Fan 46
....2.4.09 Registration Motor 47
2.5 Printing Process - General Information 48
........Printing Process Diagram 49
....2.5.02 Hopping 50
....2.5.03 Feeding 51
....2.5.04 Charging 52
....2.5.05 Exposing 53
....2.5.06 Developing 54
....2.5.07 Transfer 55
....2.5.08 Fusing 56
....2.5.09 Cleaning 57
....2.5.10 Printing 58
2.6 Sensors And Switches 59
....Sensor Location Diagram (Top View) 60
........Detail of Sensor / Lever 61
........Paper Inlet Jam 62
........Paper Feed Jam 63
....2.6.02 Toner Low Sensor 64
3 Maintenance & Disassembly
3.1 Maintenance - General Information 65
3.2 Disassembly/Assembly Procedures 66
....3.2.01 Preliminary Items 67
....3.2.02 LED Head 68
....3.2.03 Terminal Cover Cap, Rear Cover, and Fan 69
....3.2.04 Line Board (LINE-JU) 70
....3.2.05 Package Shelf Assembly 71
....3.2.06 Network Control Unit (NCU-U) 72
....3.2.07 Main Control Board (MCNT-150) 73
....3.2.08 Printer Control Board (PCNT-150) 74
....3.2.09 Left Side Cover 75
....3.2.10 Hook Switch Board (Hook-SW) 76
....3.2.11 Power Supply Unit (PWU) 77
....3.2.12 Gear Frame Assembly 78
....3.2.13 Transmit Stepper Motor 79
....3.2.14 Gear Frame and Gears 80
....3.2.15 Memory Card (Option) 81
....3.2.16 Right Side Cover 82
Table of Contents Page
....3.2.17 Document Guide Assembly 83
....3.2.18 Speaker 84
....3.2.19 Separation Rubber Assembly 85
....3.2.20 Control Panel Assembly 86
....3.2.21 Upper Paper Guide Assembly 87
....3.2.22 Upper Feed Roller Assembly 88
....3.2.23 Pinch Roller 89
....3.2.24 Sub Pinch Roller Guide Assembly 90
....3.2.25 Paper Table Guide 91
....3.2.26 Sensor Roller Assembly 92
....3.2.27 Sub Roller Assembly 93
....3.2.28 ADF Roller Assembly 94
....3.2.29 Pinch Roller 95
....3.2.30 Document Detect Assembly (PC1) 96
....3.2.31 Read Station Sensor Assembly (PC2) 97
....3.2.32 Exit Guide 98
....3.2.33 Lower Feed Roller Assembly 99
....3.2.34 Image Sensor Assembly 100
....3.2.35 ADF Idle Gear 101
....3.2.36 Scanner Frame Assembly 102
....3.2.37 Release Guide Assembly 103
....3.2.38 Second Tray Interface Board 104
....3.2.39 Registration and Main Stepper Motors 105
....3.2.40 Eject Roller Assembly 106
....3.2.41 Manual Feed Guide Assembly 107
....3.2.42 Face-Down Stacker Cover Assembly 108
....3.2.43 Fuser Unit Assembly 109
....3.2.44 Lower Base Assembly 110
....3.2.45 Reduction and Stepper Motor Idle Gears 111
....3.2.46 Reset Levers and Pressure Roller 112
....3.2.47 Transfer Roller 113
....3.2.48 Registration Roller 114
....3.2.49 Hopping Roller Assembly 115
....3.2.50 Inlet Sensor Plates 116
....3.2.51 Outlet Sensor Plate 117
....3.2.52 Toner Sensor Plate 118
....3.2.53 Contact Assembly and Sub-Power Supply Board 119
(PSUB)
....3.2.54 Left and Right Cassette Guides and Base Assembly 120
....3.2.55 Paper Supply and Cassette Sensor Plates 121
3.3 Adjustments And Service Settings 122
........LED Intensity Rating / Dip Switch Settings Table 123
3.4 Cleaning 124
3.5 Lubrication 125
Table of Contents Page
4 Failure & Repair Analysis
4.1 Failure & Repair Analysis - Introduction 126
4.2 Troubleshooting Updates 127
4.3 Reporting Problems 128
4.4 Troubleshooting Tips 129
4.5 Repair Analysis Procedures 130
....4.5.02 RAP Index 131
........RAP 01: No LCD Display 132
........RAP 02: Alarm LED is Lit 133
........RAP 03: Local Copy Problem 134
........RAP 04: Auto-Dial Problem 135
........RAP 05: Data Transmission Problem 136
........RAP 06: Auto Reception Problem 137
........RAP 07: Reception Problem 138
........RAP 08: Self-Diagnosis Failure 139
........RAP 09: Scan Operation Test Failure 140
........RAP 10: LED Test Failure 141
........RAP 11: Tone Test Failure 142
........RAP 12: High-Speed Modem Test Failure 143
........RAP 13: Multi-Frequency Tone Test Failure 144
........RAP 14: Printer Unit Print Test Failure 145
........RAP 15: Voice Message Test Failure 146
........RAP 16: No Acoustic Line Monitor 147
........RAP 17: Document Does Not Feed 148
........RAP 18: Multiple Documents Feed 149
........RAP 19: Document Skews 150
........RAP 20: Document Jams 151
........RAP 21: Printer Unit Problems Shown On LCD Display 152
............RAP 21A: Cover Open 153
............RAP 21B: Printer Alarm 1 154
............RAP 21C: Printer Alarm 2 155
............RAP 21D: Printer Alarm 3 156
............RAP 21E: Printer Alarm 4 157
............RAP 21F: Paper Jam - Confirm and Stop 158
............RAP 21G: No Paper 159
........RAP 22: Image Problems 160
............RAP 22A: Poor Print Quality (Images Light or Blurred 161
as a Whole)
............RAP 22B: Dark Background Density 162
............RAP 22C: Printed Output is Blank 163
............RAP 22D: Vertical Black Stripes on Printed Output 164
............RAP 22E: Repetitive Spaced Marks on Printed Output 165
............RAP 22F: Vertical White Streaks on Printed Output 166
............RAP 22G: Areas Missing From Printed Output 167
Table of Contents Page
............RAP 22H: Poor Fusing 168
4.6 Local Diagnostic Testing 169
....4.6.01 Self-Diagnosis 170
....4.6.02 Scan Operation Test / CIS Calibration 171
....4.6.03 LED Test 172
....4.6.04 Tone Test 173
....4.6.05 High-Speed Modem Transmit Test 174
....4.6.06 High-Speed Modem Receive Test 175
....4.6.07 Multi-Frequency Tone Test 176
....4.6.08 Printer Unit Print Test 177
....4.6.09 Voice Message Test 178
4.7 Reports - Activity Report 179
....Service Codes List 180
....4.7.02 Protocol Dump 181
........Sample Analysis of Protocol Dump Data 182
........Facsimile Control Field Conversion Table 183
4.8 Resets 184
....4.8.01 Toner Counter Reset 185
....4.8.02 Drum Counter Reset 186
....4.8.03 Fuser Counter Reset 187
4.9 Clearing The Random Access Memory (RAM) 188
....4.10 Accessing the Technical Function Settings 189
........Technical Function (TF) Listing 190
....4.11 Telephone Answering Device (TAD) Interface 191
A Reference Charts
General Information 192
A.2 Index To Charts 193
....A.2.01 Main Control Board (MCNT-150) 194
....A.2.02 Printer Control Board (PCNT-150) 195
....A.2.03 Power Supply Board (PWU-150) 196
....A.2.04 Network Control Unit (NCU-U) 197
....A.2.05 Line Board (LINE-JU) 198
....A.2.06 Hook Switch (HOOK -150) 199
....A.2.07 Operator Panel Board (OPE-150) 200
....A.2.08 Sub-Power Supply Board (PSUB- 150) 201
....A.2.09 Second Tray Interface Board 202
B Illustrated Parts Listing
General Information & Parts Overview Diagram 203
....B.1.02 Definition of Terms 204
....B.1.03 Parts Ordering Information 205
B.2 CHARTS 206
....B.2.01 Cabinet Assembly (1 of 2) 207
....B.2.02 Cabinet Assembly (2 of 2) 208
....B.2.03 Control Panel Assembly 209
Table of Contents Page
....B.2.04 Printer Assembly (1 of 3) 210
....B.2.05 Printer Assembly (2 of 3) 211
....B.2.06 Printer Assembly (3 of 3) 212
....B.2.07 Base Assembly (1 of 2) 213
....B.2.08 Base Assembly (2 of 2) 214
....B.2.09 Scan Assembly (1 of 2) 215
....B.2.10 Scan Assembly (2 of 2) 216
....B.2.11 Scan Unit (1 of 3) 217
....B.2.12 Scan Unit (2 of 3) 218
....B.2.13 Scan Unit (3 of 3) 219
....B.2.14 Upper Paper Guide Assembly (1 of 2) 220
....B.2.15 Upper Paper Guide Assembly (2 of 2) 221
....B.2.16 Cables (1 of 2) 222
....B.2.17 Cables (2 of 2) 223
....B.2.18 Options 224
....B.2.19 Packaging 225
....B.2.20 Consumables 226
....B.2.21 Documentation 227
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Service Guide OF1000
Chapter 0 About This Manual

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