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Okidata Fax 5800 Service Manual


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                                                                                                    Page: 1
                                                 Service Manual for OF5800
                                                          Chapter 0 Introduction




                                         OKIFAX 5800 Service Manual




                                Adobe Acrobat printable reference copy
                               of the OKIDATA Service Training Manual.
                                              08/20/98

                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.


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 Manual for OF5800
   1 General Description
      1.1 Product Description                                   1
      1.2 Specification and Ratings                             2
      1.3 Features and Functions                                3
      1.4 Reports                                               4
      1.5 Scanner Specifications                                5
      1.6 Printer Specifications                                6
      1.7 Memory Specifications                                 7
      1.8 Supply Yields                                         8
   2 Machine Operations
      2.1 Interconnect Block Diagram                            9
      2.2 Main Control PCB                                      10
      2.3 Network Control Unit (NCU) PCB                        11
      2.4 Power Supply Unit (PSU)                               12
      2.5 CCD Mount PCB                                         13
      2.6 Sensors                                               14
      ....2.6.1 Sensor Locations                                15
      ....2.6.2 Sensor Descriptions                             16
      2.7 Unit Assembly                                         17
      2.8 Document Scanning Sequence                            18
      ....2.8.1 Document Detection                              19
      ....2.8.2 Document Separation                             20
      ....2.8.3. Document Transport                             21
      ....2.8.4 Document Scanning                               22
      ....2.8.5 Document Discharge                              23
      2.9 Recording Section                                     24
      2.10 Image Processing                                     25
      ....2.10.1 Drum Charge                                    26
      ....2.10.2 Laser Exposure                                 27
      ....2.10.3 Development                                    28
      2.10.4 Image Transfer                                     29
      2.10.5 Fusing                                             30
      ....2.10.5.1 An Overview                                  31
      ....2.10.5.2 Fusing Temperature Control Circuit           32
      2.10.6 Timing Chart                                       33
      ....2.10.6.1 Print Starting                               34
      2.10.6.2 Print Ending                                     35
      2.11 Transmission Control Procedure (G3 mode)             36
      2.12 Transmission Control Procedure (G3 mode, polling)    37
      2.13 Transmission Control Procedure (G3, ECM Mode)        38
   3 Adjustment Procedures
      3.1 Field Service Program Modes                           39
Table of Contents                                            Page
3.2 Machine Parameter Adjustment                              40
....3.2.1 Setting the Machine Parameters                      41
....3.2.2 Clearing the Machine Parameters                     42
........Machine Parameter A:0:                                43
........Machine Parameter A:1                                 44
........Machine Parameter A:2                                 45
........Machine Parameter A:3                                 46
........Machine Parameter A:4                                 47
........Machine Parameter A:5~A:8                             48
........Machine Parameter A:9                                 49
........Machine Parameter B:4                                 50
........Machine Parameter B:4~G:9                             51
........Machine Parameter H:0                                 52
........Machine Parameter H:1                                 53
........Machine Parameter H:2                                 54
........Machine Parameter H:3~J:9                             55
3.3 Memory Switches Adjustment                                56
....3.3.1 Setting the Memory Switches                         57
....3.3.2 Clearing the Memory Switches                        58
3.4 Memory Switch Reference Guide                             59
....Memory Switch A:2~A:4                                     60
....Memory Switch A:5 - Dialer                                61
....Memory Switch B:0 - Transmission                          62
....Memory Switch B:1 - Transmission                          63
....Output attenuation                                        64
....Memory Switch B:2 - Transmission                          65
....Memory Switch B:3~B:4                                     66
....Memory Switch B:5 - Transmission                          67
....Memory Switch B:6~B:9                                     68
....Memory Switch C:0 - Reception                             69
....Memory Switch C:1 - Reception                             70
....Memory Switch C:2~C:9                                     71
....Memory Switch D:0 - Reception                             72
....Memory Switch D:1- Reception                              73
....Memory Switch D:2 - Reception                             74
....Memory Switches D:3                                       75
....Memory Switch D:5~D:9                                     76
....Memory Switch: E:0 - Scanner                              77
....Memory Switch E:1~F:9                                     78
....Memory Switch G:0 - Remote reception and TAD interface    79
....Memory Switch G:1 - Remote reception and TAD interface    80
....Memory Switch G:2 - Remote reception and TAD interface    81
....Memory Switch G:3                                         82
....Memory Switch G:4 - Remote reception and TAD interface    83
Table of Contents                                         Page
....Memory Switch G:5~G:9                                  84
....Memory Switch H:0 - Operation                          85
....Memory Switch H:1 - Operation                          86
....Memory Switch H:2 - Operation                          87
....Memory Switch H:3~H:9                                  88
3.5 Clear Programmed Data / User Settings                  89
3.6 All RAM Clear                                          90
3.7 Setting Individual Autodialer Attributes               91
3.8 Unique Switchs Adjustment                              92
....3.8.1 Setting the Unique Switches                      93
....3.8.2 Clearing the Unique Switches                     94
........Unique Switch A:0 - Dialer                         95
........Unique Switch A:1~A:9                              96
........Unique Swtich B:0                                  97
........Unique Switch B:1~B:9                              98
........Unique Switch C:0                                  99
........Unique Switch C:1                                 100
........Unique Switch C:2                                 101
........Unique Switch C:3~C:9                             102
........Unique Switch E:0                                 103
........Unique Switch E:1~E:9                             104
........Unique Switch F:0                                 105
........Unique Switch F:1                                 106
........Unique Switch F:2                                 107
........Unique Switch F:3                                 108
........Unique Switch F:4                                 109
........Unique Switch F:5 and F:6                         110
........Unique Switch F:7~F:9                             111
........Unique Switch G:0                                 112
........Unique Switch G:1                                 113
........Unique Switch G:2~G:9                             114
........Unique Switch H:0                                 115
........Unique Switch H:1~H:9                             116
3.9 Print T.30 Monitor                                    117
3.10 Print Program Mode List                              118
3.11 Test Modes                                           119
....3.11.1 Life Monitor                                   120
....3.11.2 Clear Life Monitor                             121
....3.11.3 Printer Test                                   122
....3.11.4 Stamp Test                                     123
....3.11.5 Set Background Level                           124
3.12 Print Machine Parameters, Memory Switch and Unique   125
Switch Settings
3.13 Factory Functions                                    126
   Table of Contents                               Page
    ....3.13.1 Function List                       127
    ....3.12.2 LED Test                            128
    ....3.13.3 LCD Test                            129
    ....3.13.4 LCD Test                            130
    ....3.13.5 SRAM Check                          131
    ....3.13.6 DRAM Check                          132
    ....3.3.17 RTC Test                            133
    3.14 Line Test                                 134
    ....3.14.1 Relay Test                          135
    ....3.14.2 Tonal Signal Test                   136
    ....3.14.3 DTMF Output Test                    137
    3.15 JP1, JP2 Battery Backup                   138
    3.16 DRAM Memory Backup                        139
4 Troubleshooting Procedures
    4.1 Troubleshooting Outline                    140
    4.2 Recording Paper Jam                        141
    4.3 Recording Paper Jam                        142
    4.4 Document Feeder Jam                        143
    4.5 Document Feeder Multi-feeding              144
    4.6 Transmit Errors                            145
    4.7 Transmit Black Lines                       146
    4.8 Cannot Transmit                            147
    4.9 Receive Errors                             148
    4.10 Will Not Auto-Answer                      149
    4.11 Clearing Jammed Paper                     150
    ....4.11.1 Original Document Jam               151
    ....4.11.2 Printed document jams               152
    4.12 Image Quality Problems                    153
    4.13 Cleaning the Unit                         154
    ....4.13.1 Cleaning the Air Vents              155
    ....4.13.2 Cleaning the Document Feeder Area   156
    ....4.13.3 Cleaning the Transfer Roller:       157
    4.14 LCD Error Messages                        158
    4.15 Error Codes                               159
    ....Dialing errors                             160
    ....Reception errors                           161
    ....Transmission errors                        162
    ....Communication Error Messages               163
    4.16 "Please Call Service" Error               164
    ....4.16.1 Printer Initialization Error        165
    ....4.16.2 Laser Error                         166
    ....4.16.3 Polygon Mirror Error                167
    ....4.16.4 Fan Motor Error                     168
    ....4.16.5 Fuser Malfunction                   169
   Table of Contents                                          Page
5 Disassembly
     5.0 Disassembly                                          170
     5.1 Document Hopper / Document Tray / Paper Hopper       171
     5.2 Main Control PCB , NCU PCB, Modular PCB              172
     5.3 Front Cover and Control Panel PCB / LCD              173
     5.4 Scanner Assy and Scanner Frame                       174
     5.5 Inverter PC Board / Scanner Lamp                     175
     5.6 Scanner Assy A, B, C and Inter Lock Switch           176
     5.7 TX Cover and Lock Lever                              177
     5.8 DS1 / DS2                                            178
     5.9 Press Roller                                         179
     5.10 Separator Roller                                    180
     5.11 Exit Roller / Feed Roller                           181
     5.12 Stamp                                               182
     5.13 TX Motor                                            183
     5.14 Contact Glass                                       184
     5.15 Speaker                                             185
     5.16 Connector PCB 1 / Connector PCB 2                   186
     5.17 Printer I/F PCB/Printer Mechanical Controller PCB   187
     5.18 Printer Unit                                        188
     5.19 Image Transfer Unit                                 189
     5.20 Printer Cover Unit                                  190
     5.21 High Voltage Unit (PWB-F)                           191
     5.22 Paper Sensor (PS)                                   192
     5.23 Power Supply Unit (PWB-E)                           193
     5.24 Heater Lamp                                         194
     5.25 Fusing Unit                                         195
     5.26 Thermistor                                          196
     5.27 Paper Exit Sensor                                   197
     5.28 Print Head Unit                                     198
     5.29 Cassette PCB and PS/Cassette sensor                 199
     5.30 Pickup Roller W assy and Solenoid                   200
     5.31 Feed Roller W and Press Roller W                    201
     5.32 Bottom Stay and Cassette Frame                      202
6 Illustrated Parts List
     Illustrated Parts List                                   203
     ....Illustrated Part List 1: Panel/Cover/Hopper          204
     ....Illustrated Part List 2A (1/3): Transmission         205
     ....Illustrated Part List 2B (2/3): Transmission         206
     ....Illustrated Part List 2C (3/3): Transmission         207
     ....Illustrated Part List 3: Scanner Frame               208
     ....Illustrated Part List 4: Bottom Chassis              209
     ....Illustrated Part List 5: Cassette                    210
     ....Illustrated Part List 6: Power Supply                211
   Table of Contents                                             Page
   ....Illustrated Part List 7: Housing                          212
   ....Illustrated Part List 8A: Drive/Paper Take-Up Section 1   213
   ....Illustrated Part List 8B: Drive/Paper Take-Up Section 1   214
   ....Illustrated Parts List 9: Paper Take-Up Section 2         215
   ....Illustrated Parts List 10: Transfer Unit                  216
   ....Illustrated Parts List 11: Fusing Unit                    217
   ....Illustrated Parts List 12: Options                        218
   ....Illustrated Parts List 13: Consumables                    219
   ....Illustrated Parts List 14: Accessories                    220
   ....Illustrated Parts List 15: Packaging                      221
   ....Illustrated Parts List 16: Documentation (User's)         222
   ....Illustrated Parts List 17: Documentation (Service)        223
   ....Illustrated Parts List 18: Whole Product                  224
7 Recommended Spare Parts List
   RSPL                                                          225
                                                                                                Page: 1
                                                Service Manual for OF5800
                                                    Chapter 1 General Description




The OKIFAX 5800 is a Group 3 facsimile machine. Documents are printed on plain paper using dry
electrophotographic printing.




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)
                                                                                           Page: 2
                                              Service Manual for OF5800
                                                  Chapter 1 General Description




Item                       Specifications / Comments
Type                       Group 3 desktop transceiver
Telephone network          PSTN (Public Switched Telephone Network) or equivalent
Transmission control       ITU-T T.4 and T.30
protocol
Modem                      14400, 12000, 9600, 7200, 4800, and 2400 bps with
                           automatic fallback per ITU-T, V.17, V33, V.29, V.27ter, and
                           V21. Control signal speed is 300 bps.
Coding                     ITU-T-standard MH, MR and MMR, Murata-proprietary MSE
Communication method        Half-duplex
Dual Access                Allows up to three simultaneous operations
Error Correction Mode      Transmit and receive
(ECM)                      Buffer capacity: 64 KB
Scanning method            Flatbed CCD
Recording method            Dry electrophotographic printer
Resolution Horizontal:     8 pels/mm (203 lpi)
                           Vertical: S.Fine 15.4 l/mm (392 lpi), Hyperfine 11.55 l/mm
                           (293 lpi), Fine 7.7 l/mm (196 lpi), Normal 3.85 l/mm (98 lpi)
Scanning width             208 mm (8.2 in)
Printing width             208 mm (8.2 in)
Document size              Single sheet
                           Max: 280 mm (W) x 900 mm (L) (11 x 35 in)
                           Min: 148 mm (W) x 105 mm (L) (5.8 x 4.1 in)
                           Two or more sheets
                           Max: 257 mm (W) x 365 mm (L) (10.1 x 14.4 in)
                           Min: 148 mm (W) x 105 mm (L) (5.8 x 4.1 in)
Document thickness         0.06 mm to 0.13 mm
Recording paper            Legal : 216 mm (W) x 356 mm (L) (8.5 x 14 in)
specifications             Letter : 216 mm (W) x 279 mm (L) (8.5 x 11 in)
Recording Paper Capacity   500 sheets
Paper Cassette:
Multipurpose tray:         150 sheets
Power requirements         120 VAC 



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