Oki OF5600 User manual

Service Manual for OF5300/5600
Chapter 0 Introduction
Front Cover
OKIFAX 5050 / 5300 / 5600
FACSIMILE PRODUCTS
Adobe Acrobat printable reference copy
of the OKIDATA Service Training Manual.
05/07/98
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 display well
on most displays.
OKIDATA has taken care to insure that the information is complete, accurate and up-to-date. However, OKIDATA assumes no
responsibility for errors or omissions which may occur. All the information provided is subject to change from time to time at the
sole discretion of OKIDATA.

Table of Contents Page
Service Manual for OF5300/5600
0 About This Manual
Read Me First 1
Copyright 2
OKIFAX 5050 Service Authorization 3
OKIFAX 5050 ADDENDUM to OKIFAX 5300/5600 Service
Manual 4
1 General Information
1.1 General Performance 6
1.2 General User's Function 7
1.3 General Maintenance Functions 8
1.4 General Appearance 9
1.5 Basic Performance Specifications (Table 1.5.1) 10
1.6 Reports and Lists (Table 1.6.1) 11
....Call-back Message (Example) 12
....Sender ID Format: (Example) 13
....TSI Printing (Example) 14
....Power Outage Report (Example) 15
....Activity Report (Example) 16
....Message Confirmation Report 17
....Broadcast Entry Report (Example) 18
....Confidential Reception Report (Example) 19
....Broadcast Confirmation Report (Example) 20
....Confidential Reception Report (Example) 21
....Telephone Directory for OKIFAX 5300 22
....Telephone Directory for OKIFAX 5600 23
....Configuration Report (User) [Service Bit OFF] 24
....Configuration Report (Service) [Service Bit ON] 25
2 Installation Procedures
2.1 General 26
2.2 Site Selection Title of Chapter 27
2.3 Unpacking 28
2.4 Check of Contents 29
2.5 Installation of Attachments 30
2.6 AC Cord Connection 31
2.7 Telephone and Line Connections 32
2.8 Packing for Shipment 33
2.9 Initial Settings 34
....2.9.1 Key Operation Flowchart (Figure 2.9.1) 35
....2.9.2 Technical Functions 36
........Table 2.9.2 37
........TAD Mode (Technical Function 07) 38
........TEL/FAX Automatic Switching (Technical Function 09) 39

Table of Contents Page
....2.9.3 Technical Functions Example 40
........Technical Functions 01 to 11 (Table 2.9.2) 41
........Technical Functions 12 to 16 (Table 2.9.2) 42
........Technical Functions 17 to 23 (Table 2.9.2) 43
........Technical Functions 24 to 27 (Table 2.9.2) 44
........Technical Functions 28 to 31 (Table 2.9.2) 45
....2.9.4 User's Functions 46
........Feature Specifications (Table 2.9.3): 47
........Dual Access Combination Table (1/2) 48
........Dual Access Combination Table (2/2) 49
........2)-1 One-Touch Key Program Settings 50
........One-Touch Key Program Settings (Table 2.9.4) 51
........2)-2 Function Program 52
....2.9.5 User's Functions Example 53
........User's Functions (Table 2.9.5) 54
....2.9.6 Clock Adjustment 55
....2.9.7 Dual Access Operation 56
....2.9.8 System Data Programming 57
....2.9.9 Dial Parameters Settings 58
........Dial Parameters Settings (Table 2.9.9) 59
....2.9.10 Off-line Tests 60
....2.9.11 On-line Tests 61
2.10 Installation of Optional Units 62
....1. Memory Board 63
....2. CTR (PC interface) board 64
....3. Optional Telephone Set 65
....4. Second Paper Cassette Unit 66
3 Brief Technical Description
3.1 Fundamentals of the Electro-Photographic Process 67
....Electric Photographic Process Flow 68
3.2 Actual Electo-photographic Process (Figure 3.2.1) 69
3.3 Boards and Units 70
....Block Diagram (Figure 3.3.2) 71
3.4 Overall Dimension and Mechanical Structure 72
4 Disassembly
4.1 General 73
....4.1.1 Precautions for Parts Replacement 74
....4.2.2 Tools 75
4.2.3 How to Disassemble and Reassemble 76
........Disassembly Procedure Flow (Figure 4.2) 1 of 2 77
........Disassembly Procedure Flow (Figure 4.2) 2 of 2 78
....4.2.3.1 LED Print Head 79
....4.2.3.2 Image Drum, Covers (Rear, NCU, Main) Separation
Plate, Boards (NCU, Modem) 80

Table of Contents Page
....4.2.3.3 Control Panel Assembly, Paper Guide (U) Assembly 81
....4.2.3.4 Sub-roller, ADF Roller Assembly, Pinch Roller,
Contact Image Sensor, Document Detectors (PC1 and PC2) 82
....4.2.3.5 Motors (Resist, Drum), Assemblies (Release Guide,
Manual Guide) Stacker Cover, Fusing Unit 83
....4.2.3.6 Lower Base, Motor Assembly, Back-up Roller,
Transfer Roller 84
....4.2.3.7 Resist Roller, Hopping Roller, Sensor Plate 85
....4.2.3.8 MCNT Board, Power Supply Unit, Contact Assembly,
Transformer, Sub-PSU 86
5 Adjustments
5.1 Setting of LED Print Head Drive Time 87
5.2 Confirmation Items 88
5.3 Measurement 89
....Measurement Points on M17 Board (Figure 5.3.1) 90
6 Cleaning and Maintenance
6.1 Consumables Replacement 91
....Replaceable Items Diagram (Figure 6.1.2) 92
....Others - Reliability (Figure 6.1.1) 93
6.2 Preventative Maintenance 94
....Preventative Maintenance (Table 6.2.2) 95
....Preventative Maintenance Diagram (Figure 6.2.2) 96
6.3 Printer Counter Display/Clear (User) 97
....6.4 Printer Counter Display/Clear (Service) 98
6.5 Self-Diagnosis Test 99
....Self-Diagnosis Test Sample (Figure 6.5.1) 100
....Explanation of Self-Diagnosis Test Items 101
6.6 Sensor Calibration Test 102
6.7 LED Test 103
6.8 Tone Send Test 104
6.9 High-speed Modem Send Test 105
....High-speed Modem Send and Receive Test Diagram (Figure
6.9.1) 106
6.10 High-speed Modem Receive Test 107
6.11 MF Send Test 108
6.12 Tone (TEL/FAX) 109
6.13 Protocol Data Dump (Figure 6.13.1) 110
....Sample Protocol Data Dump (Figure 6.13.1) 111
....Data Analysis (Figure 6.13.2) 112
....Facsimile Control Field Conversion Table 113
7 Troubleshooting
7.1 Overview 114
....7.1.1 Overall Troubleshooting Flow Chart 115
....7.1.2 No LCD Operation 116

Table of Contents Page
....7.1.3 Alarm LED On 117
....7.1.4 Printing Test Failure 118
....7.1.5 No Local Copy 119
....7.1.6 Auto Dial Failure 120
....7.1.7 Transmission Problem 121
....7.1.8 Auto Reception Failure 122
....7.1.9 Reception Problem 123
....7.1.10 Sensor Calibration Test 124
....7.1.11 LED Test 125
....7.1.12 Tone Send Test 126
....7.1.13 High-speed Modem Test 127
....7.1.14 MF Send Test 128
....7.1.15 Tone (TEL/FAX) Send Test 129
....7.1.16 No Acoustic Line Monitor 130
....7.1.17 Power Supply Unit 131
....7.1.18 No Document Feeding 132
....7.1.19 Multiple Document Feeding 133
....7.1.20 Document Skew 134
....7.1.21 Document Jam 135
....7.1.22 Printer Unit 136
........7.1.22.1 Precautions 137
........7.1.22.2 Troubleshooting Flow Charts of Printer Unit 138
............Overall Troubleshooting Flowchart 139
............1: Top Cover is Open 140
............2: Replace Image Drum Message 141
............3: Engine Controller Error 142
............4: Fan Motor Rotation Error 143
............5: Fuser Unit Thermal Error 144
............6: Paper Jams 145
............7: No Paper Tray or No Paper 146
............Action Items (Printer Unit-LCD Message) Table 7.1.22.2 147
........7.1.22.3 Image Problems Table 148
............Sample Image Problems (Figure 7.1.22.1) 149
............8: Light or Blurred Output 150
............9: Smeared Background on Output 151
............10: Blank Output 152
............11: Vertical Black Stripes on Output 153
............12: Evenly Spaced Marks on Output 154
............13: Missing Print on Output 155
............14: Vertical White Stripes on Output 156
............15: Poor Fusing 157
8 Dipswitch Settings
8.1 General Information 158
A Board Descriptions

Table of Contents Page
A1.1 Unit Configuration and Block Diagram (Figure A.1.12) 159
....Block Diagram (Figure A1.2.2) 160
....Block Diagram Abbreviations 161
A1.2 Function of Each Unit 162
A2.1 Signal Flow Explanation 163
....(1) Copy Mode 164
....Copy Picture Signal (Figure A2.2.1) 165
....(2) G3 Send Mode 166
....G3 Send Pciture Signal (Figure A2.2.2) 167
....(3) G3 Receive Mode 168
....G3 Receive Picture Signal (Figure A2.2.3) 169
....(4) 300 bps Send Mode 170
....300 bps Send Signal (Figure A2.2.4) 171
....(5) 300 bps Receive Mode 172
....300 bps Receive Signal (Figure A2.2.5) 173
....(6) Report Printing 174
....Report Printing Signal (Figure A2.2.6) 175
....(7) Memory Transmission 176
....(8) Memory Reception 177
....Related Signals of CPU Diagram (Figure A3.2.1) 178
A3.2 M17 Circuit Diagram 179
....A3.2.1 M17 Circuit Diagram 180
........Related Signals of CPU Diagram (Figure A3.2.1) 181
....A3.2.2 M17 Circuit Diagram 182
........Related Signals of IOGA (Figure A3.2.2) 183
....A3.2.3 M17 Circuit Diagram 184
........Block Diagram of FLS, MASK and Real Time Clock
(Figure A3.2.3) 185
....A3.2.4 M17 Circuit Diagram 186
........Block Diagram of Audio Monitor Circuit (Figure A3.2.4) 187
....A3.2.5 M17 Circuit Diagram 188
........Related Signals and Block Diagram of CIS (Figure A3.2.5) 189
....A3.2.6 M17 Circuit Diagram 190
........Related Signals of EXSEED (Figure A3.2.6) 191
....A3.2.7 M17 Circuit Diagram 192
........Related Signals of Modem (Figure A3.2.8) 193
....A3.2.8 M17 Circuit Diagram 194
........Interface between M17 Board and NCU Board (Figure
A3.2.9) 195
........Interface between M17 Board and OPE (Figure A3.2.10) 196
........Related Signals of PC1/PC2 (Figure A3.2.11) 197
....A3.2.9 M17 Circuit Diagram 198
........Related Signals and Block Diagaram of LED Head (Figure
A3.2.12) 199

Table of Contents Page
....A3.2.10 M17 Circuit Diagram 200
........Related Signals of Send Motor (Figure A3.2.13) 201
....A3.2.11 M17 Circuit Diagram 202
........Related Signals of Drum/Resist Motor (Figure A3.2.14) 203
....A3.2.12 M17 Circuit Diagram 204
........Related Signals of Fan Motor (Figure A3.2.15) 205
........Figure A3.2.16 Interface between M17 Board and 2'nd
Tray 206
....A3.2.13 M17 Circuit Diagram 207
........Sensor Functions 208
........Sensors and Switch Control (Figure A3.2.17) 209
........Fuser Unit Temperature Control (Figure A3.2.18) 210
........High/Medium Voltage Control (Figure A3.2.19) 211
....A3.2.14 M17 Circuit Diagram 212
........Interface: M17 Board to Optional Memory Board (Figure
A3.2.20) 213
........Interface M17 Board to CR Board (PC interface unit)
(Figure A3.2.21) 214
....A3.2.15 M17 Circuit Diagram 215
........Block Diagram of DRAM (Figure A3.2.22) 216
....A3.4 OPE (05W) Circuit Diagram 217
........Block Diagram of OPE (operation unit) (Figure A3.4.1) 218
....A3.6 Power Supply Unit 219
....A3.6.1 1VP (for 120 V)/2VP (for 230 V) Circuit Diagram (1/2) 220
........1. Low-voltage power supply circuit 221
........2. Input ratings 222
........3. Output ratings 223
........4: Block Diagram 224
........Block Diagram of PWU (power supply unit) (Figure A3.6.1) 225
........5. General functional description 226
............5-1 General 227
............5-2 Circuit Description 228
............5-2-1 AC input section 229
............5-2-2 Heater control circuit 230
............5-3 Low-voltage section 231
............5-3-1 +30 V circuit 232
............5-3-2 +/- 8 V circuit 233
............5-3-3 +5 V circuit 234
............5-4 Protection circuit 235
............5-5 Cover open circuit 236
....A3.6.2 1VP (for 120V)/2VP (for 230V) Circuit Diagram (2/2) 237
........5-6 High-voltage Section 238
........5-6-1 Functional overview 239
........5-6-2 SB2, DB1, DB2 and CB 240

Table of Contents Page
........5-6-3 TR1 and TR2 241
........5-6-4 CH 242
........5-7 Photosensors 243
A3.7 UNC5 (NCU) Circuit Diagram 244
....Block Diagram of UNC (Figure A3.7.1) 245
A3.8 TELU Circuit Diagram (option) 246
....Block Diagram of TEL-U (option) (Figure A3.8.1) 247
A3.11 MEMO (memory) Circuit Diagram 248
....Related Signals of Memory Board (option) (Figure A3.11.1) 249
A3.12 CTR Circuit Diagram (PC interface unit: option) 250
....Related Signals of P050 (PC interface unit) (Figure A3.12.1) 251
....Block Diagram of 2nd Tray (Figure A3.13.1) 252
A3.13 TQSB (Second tray) Circuit Diagram: option 253
B Print Operation Description
Overview 254
B2.1 Mechanical Components 255
....1) Image drum cartridge 256
....2) Resist motor 257
....3) Drum motor 258
....4) LED head 259
....5) Fuser 260
....Layout of Print Station Components (FigureB2.1) 261
B2.2 Description of Print Operations 262
....B2.2.1 Process Operations 263
........1) Hopping and feeding 264
........2) Charging 265
........3) Exposure 266
........4) Developing 267
........5) Transfer 268
........6) Fusing 269
........7) Cleaning 270
........8) Cleaning of rollers 271
....B2.3 Errors 272
........B2.3.1 Errors List 273
........B2.3.2 Major Trouble Errors 274
............B2.3.2.1 Fuser Error (Print Alarm 4) 275
............B2.3.2.2 Fan Error (Print Alarm 3) 276
............B2.3.2.3 Paper Feed Monitoring 277
............B2.3.2.4 2'nd Tray Communication Error (Printer Alarm
2) 278
............B2.3.2.5 Cover Open 279
........B2.3.3 Recoverable Errors 280
............B2.3.3.1 Toner Low Detection 281
............Composition 282

Table of Contents Page
............Operation 283
............Operation during toner full state 284
............Operation during toner low state 285
............Low Toner Alarm 286
........B2.3.2.3 Paper Feed Monitoring 287
C Circuit Diagrams
C.1 General Information 288
D Illustrated Parts List
Assembly 289
1: Cabinet Assembly 290
2: Control Panel Assembly 291
3A: Printer Assembly (1 of 2) 292
3A: Printer Assembly (2 of 2) 293
4A: Base Assembly (1 of 2) 294
4A: Base Assembly (2 of 2) 295
5: Scan Unit 296
6: Paper Guide Assembly 297
7: Cables 298
8: Option Telephone 299
9A: Second Paper Feed (Option) 300
9B: Second Paper Feed (Option) 301
10: Miscellaneous 302
....Whole Unit 303
....Consumables 304
....Options 305
....Packaging 306
....User's Manuals 307
....Service (Technical) Manuals 308
E Board Layout
Diagram 309
F Second Paper Feeder
1. Outline 310
....1.1 Functions 311
....1.2 External View and Component Names (Figure 1-1) 312
2. Mechanism Description 313
....2.1 General Mechanism 314
....2.2 Hopper Mechanism 315
3. Parts Replacement 316
....3.1 Precautions Concerning Parts Replacement 317
....3.2 Parts Layout 318
....3.3 Parts Replacement Methods 319
........3.3.1 Stepping Motor (Hopping) 320
........3.3.2 TQSB2-PCB 321
........3.3.3 Hopping Roller Shaft Assy and One-way Clutch
Gear 322

Table of Contents Page
4. Troubleshooting 323
....4.1 Precautions Prior to the Troubleshooting 324
....4.2 Preparations for the Troubleshooting 325
....4.3 Troubleshooting Method 326
........4.3.1 LCD Status Message List 327
5. Connection Diagram 328
....5.1 Interconnection Diagram 329
....5.2 PCB Layout 330
6. Parts List 331
G RMCS System
Introduction 332
1. Notes to Users 333
....1.1 Identifying the Packaged Contents 334
....1.2 Required Devices 335
....1.3 Connectable Peripheral Equipment 336
2. Setup 337
....2.1 Mounting 338
........2.1.1 Mounting Procedures 339
....2.2 Installation 340
........2.2.1 Registering the RMCS Basic System 341
........2.2.2 Registering the Facsimile Model No. 342
........2.2.3 Deleting the Facsimile Model No. 343
........2.2.4 Updating the Password 344
........2.2.5 Updating the Dip Switches 345
........2.2.6 Deleting the RMCS Basic System 346
3. RMCS Basic Operation 347
....3.1 Activating and Terminating the system 348
........3.1.1 To Activate 349
........3.1.2 Entering the ID and Password 350
....3.2 TEL Directory 351
........3.2.1 To Terminate 352
........3.2.2 Selecting Destination Drive 353
....3.3 Main Menu 354
....3.4 Environment Setting 355
4. Message Modifying Tool 356
....4.1 Activating the Program 357
....4.2 Modifying Message 358
........4.2.1 File Selection 359
....4.3 Saving Message 360
........4.3.1 Confirmation 361
....4.4 Loading Message 362
........4.4.1 Confirmation 363
....4.5 Other Message File 364
H Product Service Bulletins