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Okidata Fax 1050, 2350, 2450 Service Manual


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                                                                                                Page: 1
                                            Service Guide OF1050/2350/2450
                                                    Chapter 0 About This Manual




                    OKIFAX 1050 // 2350 // 2450
                     FACSIMILE PRODUCTS


                             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 OF1050/2350/2450
   0 About This Manual
      Front Cover                                                     1
      Federal Communications Commission Requirements for End          2
      Users
      FCC Telephone Consumer Protection Act                           3
      Canadian Department of Communications Requirements for          4
      End Users
      Federal Communications Commission Radio Frequency               5
      Statement
      Canadian Department of Communications Radio Interference        6
      Statement
   1 General Information
      1.1 General Performance                                         7
      1.2 General User's Function                                     8
      1.3 General Maintenance Functions                               9
      1.4 General Appearance                                          10
      ....Figure 1.4.2 OKIFAX 1050 Control Panel                      11
      ....Figure 1.4.3 OKIFAX 2350 Control Panel                      12
      ....Figure 1.4.4 OKIFAX 2450 Control Panel                      13
      1.5 Basic Performance Specifications                            14
      1.6 Reports and Lists                                           15
      ....Reports and Lists - Continued                               16
      ........Telephone Directory for OKIFAX 1050 (1/2): (Example)    17
      ........Telephone Directory for OKIFAX 1050 (2/2): (Example)    18
      ........Telephone Directory for OKIFAX 2350 (1/4): (Example)    19
      ........Telephone Directory for OKIFAX 2350 (2/4): (Example)    20
      ........Telephone Directory for OKIFAX 2350 (3/4): (Example)    21
      ........Telephone Directory for OKIFAX 2350 (4/4): (Example)    22
      ........Telephone Directory for OKIFAX 2450 (1/6): (Example)    23
      ........Telephone Directory for OKIFAX 2450 (2/6): (Example)    24
      ........Telephone Directory for OKIFAX 2450 (3/6): (Example)    25
      ........Telephone Directory for OKIFAX 2450 (4/6): (Example)    26
      ........Telephone Directory for OKIFAX 2450 (5/6): (Example)    27
      ........Telephone Directory for OKIFAX 2450 (6/6): (Example)    28
      ....Reports and Lists - Continued                               29
   2 Setup Information
      2A-Setup Information                                            30
      2.2 Site Selection                                              31
      2.3 Unpacking                                                   32
      2.4 Check of Contents                                           33
      2.5 Installation of Attachments                                 34
      ....Toner cartridge                                             35
Table of Contents                                                      Page
....Recording paper                                                     36
....Document stacker                                                    37
2.6 AC Cord Connection                                                  38
2.7 Telephone and Line Connections                                      39
2.8 Packing for Shipment                                                40
2B. Programming and Initial Settings                                    41
....2.9.2 Technical Functions                                           42
....2.9.2.02 TEL/FAX automatic switching                                43
....2.9.2.03 TAD mode                                                   44
........TEL/FAX mode flow chart                                         45
........TAD mode flow chart                                             46
........TAD mode flow chart                                             47
....2.9.3 Technical Functions Example                                   48
....2.9.3.02 Technical functions                                        49
........Table 2.9.2 (1/3) Technical Functions                           50
........Table 2.9.2 (2/3) Technical Functions                           51
........Table 2.9.2 (3/3) Technical Functions                           52
....2.9.4 Users Functions                                               53
........Table 2.9.3 (1/6) Feature Specifications                        54
........Table 2.9.3 (2/6) Feature Specifications                        55
........Table 2.9.3 (3/6) Feature Specifications                        56
........Table 2.9.3 (4/6) Feature Specifications                        57
........Table 2.9.3 (5/6) Feature Specifications                        58
........Table 2.9.3 (6/6) Feature Specifications                        59
........Users Initial Settings                                          60
........Table 2.9.4 (1/3) One-touch key Program Settings                61
........Table 2.9.4 (2/3) One-touch key Program Settings                62
........Table 2.9.4 (3/3) One-touch key Program Settings                63
........Table 2.9.4 User Function Program Settings                      64
....2.9.5 User's Functions Example                                      65
........Table 2.9.5 User's Functions                                    66
........2.9.5.02 Ring response time                                     67
........2.9.5.03 Dial parameters (In case the service bit is "OFF".)    68
....2.9.6 Clock Adjustment                                              69
....2.9.7 Dual Access Operation (for OKIFAX 2350/2450)                  70
....2.9.8 System Data Programming                                       71
....2.9.9 One-Touch Key Programming                                     72
....2.9.10 Two-digit Auto Dial Programming                              73
....2.9.11 Group setting                                                74
....2.9.12 Dial Parameters Settings                                     75
........2.9.12.02 Procedure                                             76
........Table 2.9.6 Dial Parameters Settings                            77
....2.9.13 Programming Mail Box Password                                78
....2.9.14 Memory Operations                                            79
   Table of Contents                                                 Page
   ........2.9.14.02 CONF. RX MSG. PRINT                              80
   ....2.9.15 Off-line Tests                                          81
   ....2.9.16 On-line Tests                                           82
   ........2.9.16.02 Reception                                        83
   ............Fig. 2.9.5 Typical Transmission Flow                   84
   ............Fig. 2.9.6 Typical Reception Flow                      85
   2C. Installation of Optional Units                                 86
   ....2.10.02 Procedure                                              87
   ........Installation of the memory board                           88
   ........Installation of PCIU (PC interface) board                  89
3 Board Description/Printer Operation
   Section 1: Board Description - 3.1 Unit Configuration and Block    90
   Diagram
   ....3.1.02 The unit configuration of the OKIFAX 2350/2450 is as    91
   follows:
   3.2 Overall Dimension and Mechanical Structure of OKIFAX           92
   1050
   3.3 Overall Dimension and Mechanical Structure of OKIFAX           93
   2350/2450
   3.4 Boards and Units                                               94
   3.5 Function of Each Board                                         95
   ....3.5.02 Operation panel unit: YOPE (OKIFAX 1050)/YOPE-2         96
   (OKIFAX 2350/2450) board
   ....3.5.03 NCUU board                                              97
   ....3.5.04 Power supply unit: FXVE (120V)/FXVH (230V) board        98
   ....3.5.05 MEMO (memory) board (Option)                            99
   ....3.5.06 P050 board (Optional PC Interface)                     100
   ....3.5.07 HOOK board (Optional handset)                          101
   ....3.5.08 TELU board (Option): For US and Canada                 102
   ....3.5.09 TQSB board (installed within second paper cassette     103
   option)
   ........OKIFAX 1050 Block Diagram                                 104
   ........Figure 3.5.2 OKIFAX 2350/2450 Block Diagram               105
   3.6 Explanation of Signal Flow for OKIFAX 1050/2350/2450          106
   ....3.7 Signal Flow by Mode of operation (OKIFAX 1050)            107
   ....Okifax 1050 300 bps Send Signal                               108
   ....Okifax 1050 300 bps Receive Signal                            109
   ....Okifax 1050 G3 Send Picture Signal                            110
   ....Okifax 1050 G3 Receive Picture Signal                         111
   ....Okifax 1050 Report Print Signal                               112
   3.8 Signal Flow by Mode of Operation (OKIFAX 2350/2450)           113
   ....Okifax 2350/2450 300 bps Send                                 114
   ....Okifax 2350/2450 300 bps Receive Signal                       115
   ....Okifax 2350/2450 G3 Send Picture Signal                       116
   Table of Contents                                                  Page
   ....Okifax 2350/2450 G3 Receive Picture Signal                     117
   ....Okifax 2350/2450 Report Print Signal                           118
   3.9 Power Supply Unit                                              119
   ....General functional description                                 120
   ....3.9.02 Power Supply Unit (FXVE/FXVH)                           121
   ....3.9.03 FXVE (for 120 V)/FXVH (for 230 V) Circuit Diagram       122
   (2/2)
   3.10 NCU Board                                                     123
   3.11 TELU Circuit Diagram (option)                                 124
   ....Block Diagram of TEL-U (option)                                125
   ....Relationship between NCUU and TEL-U                            126
   3.12 MEMO (memory) Circuit Diagram (option)                        127
   3.13 P050 (PC interface unit) Circuit Diagram (option)             128
   3.14 TQSB (Second tray) Circuit Diagram: option                    129
   Section 2: Print Operation - 3.15 Mechanical Components            130
   ....Layout of Print Station Components                             131
   3.16 Process Operations                                            132
   ....3.16.02 Charging                                               133
   ....3.16.03 Exposure                                               134
   ....3.16.4 Developing                                              135
   ....3.16.05 Transfer                                               136
   ....3.16.06 Fusing                                                 137
   ....3.16.07 Cleaning                                               138
   ....3.16.08 Cleaning of rollers                                    139
   3.17 Actual Electo-photographic Process                            140
   3.18 Errors List                                                   141
   3.19 Major Trouble Errors                                          142
   3.20 Cleaning                                                      143
   3.21 Sensors and Switches                                          144
   ....3.21.02. Sensors and switch control                            145
4 Mechanical Disassembly and Reassembly
   4.1 General                                                        146
   ....4.1.2 Tools                                                    147
   4.2 How to Disassemble and Reassemble                              148
   ....4.2.1 LED Print Head                                           149
   ....4.2.2 Image Drum, Rear Cover, NCU Cover, Main Cover,           150
   Separation Plate, NCU Board, Modem Board
   ....4.2.3 Control Panel Assembly, Paper Guide (U) Assembly.        151
   ....4.2.4 Sub-roller, ADF Roller Assembly, Pinch Roller, Contact   152
   Image Sensor, Document Detectors (PC1 and PC2).
   ....4.2.5 Registration Stepper Motor, Main Stepper Motor,          153
   release Guide Assembly, Eject Roller Assembly, Manual Guide
   Assembly (only for OKIFAX 2350/2450), Stack Cover, Fusing
   Unit
   Table of Contents                                                 Page
    ....4.2.6 Lower Base, Motor Assembly, Back-up Roller, Transfer   154
    Roller, Reset Levers
    ....4.2.7 Registration Roller, Hopping Roller, Sensor Plates     155
    ....4.2.8 MCNT Board, Power Supply Unit, Contact Assembly,       156
    Transformer
5 Adjustments
    5.1 Setting of LED Print Head Drive Time                         157
    5.2 Power Voltage (Confirmation)                                 158
    5.3 Contact Image Sensor Output Check (Confirmation)             159
6 Cleaning and Maintenance
    6.1 Replacement of Consumable Parts                              160
    6.2 Preventative Maintenance                                     161
    6.3 Printer Counter Display/Clear                                162
    6.4 Printer Counter Display/Clear                                163
    6.5 Self-diagnosis Test                                          164
    6.6 Sensor Calibration Test                                      165
    6.7 LED Test                                                     166
    6.8 Tone Send Test                                               167
    6.9 High-speed Modem Send Test                                   168
    6.10 High-speed Modem Receive Test                               169
    6.11 MF Send Test                                                170
    6.12 Tone (TEL/FAX)                                              171
    6.13 Printer Cleaning                                            172
    6.14 Protocol Dump Data Printing                                 173
    ....6.14.02 Procedure                                            174
    ....6.14.03 Dump data description                                175
    ....6.14.04 Analysis from the data                               176
    ....6.14.05 FCF (Facsimile Control Field) conversion table       177
    6.15 System Reset                                                178
    6.16 Service Code                                                179
7 Troubleshooting and Repair
    General                                                          180
    7.1 Overall Troubleshooting Flow Chart                           181
    7.2 No LCD Operation                                             182
    7.3 ALARM LED ON                                                 183
    7.4 Printing Test Failure                                        184
    7.5 No Local Copy                                                185
    7.6 Auto Dial Failure                                            186
    7.7 Transmission Problem                                         187
    7.8 Auto Reception Failure                                       188
    7.9 Reception Problem                                            189
    7.10 Scan Calibration Test Failure                               190
    7.11 LED Test                                                    191
    7.12 Tone Send Test                                              192
   Table of Contents                                                   Page
   7.13 High-speed Modem Test                                          193
   7.14 MF Send Test                                                   194
   7.15 Tone (TEL/FAX) Send Test                                       195
   7.16 No Acoustic Line Monitor                                       196
   7.17 Power Supply Unit                                              197
   7.18 No Document Feeding                                            198
   7.19 Multiple Document Feeding                                      199
   7.20 Document Skew                                                  200
   7.21 Document Jam                                                   201
   7.22 Printer Unit                                                   202
   ....7.22.2 Troubleshooting Flow Chart of Printer Unit               203
   ........Troubleshooting flow chart 1:                               204
   ........Troubleshooting flow chart 2:                               205
   ........Troubleshooting flow chart 3:                               206
   ........Troubleshooting flow chart 4:                               207
   ........Troubleshooting flow chart 5:                               208
   ........Troubleshooting flow chart 6:                               209
   ........Troubleshooting flow chart 7:                               210
   ........Troubleshooting flow chart 8:                               211
   ........Troubleshooting flow chart 9:                               212
   ........Troubleshooting flow chart 10:                              213
   ........Troubleshooting flow chart 11:                              214
   ........Troubleshooting flow chart 12:                              215
   ........Troubleshooting flow chart 13:                              216
   ........Troubleshooting flow chart 14: Troubleshooting flow chart   217
   15:
8 Drawings and Parts List
   ASSEMBLY - OKIFAX 1050                                              218
   ASSEMBLY - OKIFAX 2350/2450                                         219
   SECTION 1 CABINET ASSEMBLY - OKIFAX 1050                            220
   SECTION 1 CABINET ASSEMBLY - OKIFAX 2350/2450                       221
   SECTION 2 CONTROL ASSEMBLY - OKIFAX 1050                            222
   SECTION 2 CONTROL ASSEMBLY - OKIFAX 2350                            223
   SECTION 2 CONTROL ASSEMBLY - OKIFAX 2450                            224
   SECTION 3 PRINTER ASSEMBLY - OKIFAX 2350/2450                       225
   SECTION 3 PRINTER ASSEMBLY - OKIFAX 1050                            226
   SECTION 4 BASE ASSEMBLY - OKIFAX 1050                               227
   SECTION 4 BASE ASSEMBLY - OKIFAX 2350/2450                          228
   SECTION 5 SCAN UNIT - OKIFAX 1050/2350/2450                         229
   SECTION 6 PAPER ASSEMBLY - OKIFAX 1050/2350/2450                    230
   SECTION 7 CABLES - OKIFAX 1050                                      231
   SECTION 7 CABLES - OKIFAX 2350/2450                                 232
   Section 8: Packaging                                                233
9 High Capacity Second Paper Feeder Maintenance
Table of Contents                        Page
PREFACE                                  234
9.1 Outline                              235
9.2 Mechanism Description                236
9.3 PARTS REPLACEMENT                    237
....9.3.2 Parts Layout                   238
....9.3.3 Parts Replacement Methods      239
........9.3.3.1. Pulse Motor (Hopping)   240
........9.3.3.2. TQSB-PCB                241
9.4 Troubleshooting                      242
9.5 Connection Diagram                   243
....9.5.2 PCB Layout                     244
9.6 Parts List                           245
                                                                                                       Page: 2
                                               Service Guide OF1050/2350/2450
                                                        Chapter 0 About This Manual




Federal Communications Commission Requirements for End Users

This device has been granted a registration number by the Federal Communications Commission, under
Part 68 rules and regulations for direct connection to the telephone lines. In order to comply with these
FCC rules, the following instructions must be carefully read and applicable portions followed completely.

1. This equipment complies with Part 68 of FCC rules. On the bottom of the equipment is a label that
contains, among other information, the FCC registration number and ringer equivalence number (REN) for
this equipment. If requested, this information must be provided to the telephone company.

2. The following USOC jacks may be used with this equipment: RJ11C.

3. The REN is used to determine the quantity of devices which may be connected to the telephone line.
Excessive RENs on the telephone line may result in the devices not ringing in response to an emergency
call. In most, but not all areas, the sum of the RENs should not exceed five (5.0). To be certain of the
number of devices that may be connected to the line, as determined by the total RENs, contact the
tele-phone company to determine the maximum REN for your calling area.

4. If the equipment causes harm to the telephone network, the telephone company will notify you in
advance. But if advance notice isn't practical, the telephone company will notify the customer as soon as
possible. Also, you will be advised of your right to file a complaint with the FCC if you believe it is
necessary.

5. The telephone company may make changes in its facilities, equipment, operations, or procedures that
could affect the operation of the equipment. If this happens, the telephone company will provide advance
notice in order for you to make the necessary modifications to maintain uninterrupted service.

6. If trouble is experienced with this equipment, please contact the following for repair and/or warranty
information:

OKIDATA 532 Fellowship Rd. Mount Laurel, NJ 08054-3405 Telephone: (609) 235-2600 or
1-(800)-OKIDATA

If the trouble is causing harm to the telephone network, the telephone company may request that you
remove the equipment from the network until the problem is resolved.

7. This equipment contains no user serviceable parts. Please contact OKIDATA for service.

8. This equipment cannot be used on public coin service provided by the telephone company. Connection
to Party Line Service is subject to state tariffs. Contact your state Public Utility Commission, Public Service
Commission, or Corporate Commission for information.

9. This equipment is hearing-aid compatible.


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: 3
                                               Service Guide OF1050/2350/2450
                                                        Chapter 0 About This Manual




FCC Telephone Consumer Protection Act

The Federal Communications Commission Telephone Consumer Protection Act of 1991 makes it unlawful
for any person to use a computer or other electronic device to send any message via a telephone fax
machine unless such message clearly contains, in a margin at the top or bottom of each transmitted page
or on the first page of the transmission, the date and time it is sent and an identification of the business or
other entity, or other individual sending the message, and the telephone number of the sending machine
or such business, other entity, or individual.

To comply with this law, you must enter the following information in your fax unit:



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