Gestetner B003 Service Manual

Gestetner

All in One Printer

🧩  Manuals supported for 7 models of Gestetner

  • B004
  • B006
  • B007
  • 3502
  • 4502
  • 3502p
  • 4502p

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Table of Contents
  • Important safety notices

    33
  • Laser safety

    34
  • INSTALLATION PROCEDURE

    39
  • ENVIRONMENT

    40
  • MINIMUM SPACE REQUIREMENTS

    41
  • INSTALLABLE OPTION TABLE

    42
  • INSTALLATION FLOW CHART

    43
  • MAIN MACHINE INSTALLATION

    44
  • Development Unit and PCU

    46
  • Toner Bottle

    49
  • Paper Trays

    50
  • Initialize TD Sensor and Developer

    52
  • Set Paper Size for Paper Trays

    53
  • Electrical Total Counter

    54
  • PAPER TRAY UNIT INSTALLATION

    55
  • BIN TRAY UNIT INSTALLATION

    60
  • BRIDGE UNIT INSTALLATION

    67
  • SHEET FINISHER INSTALLATION

    70
  • TWO-TRAY FINISHER INSTALLATION

    74
  • PUNCH UNIT INSTALLATION

    78
  • AUTO REVERSE DOCUMENT FEEDER INSTALLATION

    82
  • LCT INSTALLATION

    85
  • Platen cover installation

    88
  • Key counter installation

    89
  • Anti-condensation heater

    91
  • Tray heater

    93
  • Tray heater (optional paper tray unit)

    94
  • Optional user account enhancement unit

    95
  • Preventive maintenance schedule

    99
  • General cautions

    105
  • Special tools and lubricants

    106
  • Front door

    107
  • Upper right cover

    108
  • Rear covers

    110
  • Left covers

    111
  • Scanner unit

    112
  • Exposure glass

    113
  • Scanner exterior panels/operation panel

    114
  • Lens block/sbu assembly

    115
  • Original size sensors

    116
  • Exposure lamp

    117
  • Scanner hp sensor/platen cover sensor

    118
  • Scanner motor

    119
  • Lamp stabilizer and scanner motor drive board

    120
  • Scanner wire

    121
  • Laser unit

    125
  • Polygon mirror motor

    127
  • Laser synchronization detector

    128
  • Pick-off pawls

    132
  • Charge roller cleaning pad & roller brush

    133
  • Drum cleaning blade

    135
  • Development unit

    136
  • Development filter

    137
  • Td sensor

    140
  • Transfer unit

    141
  • Transfer belt

    142
  • Paper feed

    144
  • Lower right cover

    145
  • Relay/upper paper feed and lower paper feed

    146
  • Upper paper feed unit for tray

    147
  • Lower paper feed unit for tray

    148
  • Paper end/paper height/relay sensors

    149
  • Registration sensor

    150
  • Tray lift motor

    152
  • Feed/development motor

    153
  • Fusing unit

    154
  • Fusing unit exit guide

    155
  • Fusing lamps

    156
  • Thermistors and thermostats

    158
  • Fusing roller/pressure roller

    159
  • By-pass paper feed and pick-up roller

    162
  • By-pass separation roller replacement

    163
  • Paper end sensor and pick-up solenoid

    164
  • Paper size sensor board replacement

    165
  • By-pass table removal

    166
  • Paper feed clutch replacement

    167
  • Duplex unit

    168
  • Duplex entrance sensor replacement

    169
  • Duplex exit sensor replacement

    170
  • Drive area

    171
  • Main motor

    172
  • Toner supply motor

    173
  • Printed circuit boards

    174
  • I/o board

    175
  • Bicu board

    176
  • Copy adjustments: printing/scanning

    178
  • Adf image adjustment

    182
  • Touch screen calibration

    183
  • Service call conditions

    187
  • Sc code descriptions

    188
  • Electrical component defects

    202
  • Blown fuse conditions

    204
  • Service tables

    207
  • Sp mode button summary

    208
  • Service program mode tables

    210
  • Sp2-xxx: drum

    213
  • Sp3-xxx: process

    221
  • Sp4-xxx: scanner

    222
  • Sp5-xxx: mode

    235
  • Sp6-xxx: peripherals

    242
  • Sp7-xxx: data log

    244
  • Test pattern printing: sp

    253
  • Test pattern table: sp2-902-3 printing test patterns

    254
  • Input check

    255
  • Ardf input check: sp

    259
  • Output check

    260
  • Ardf output check: sp

    262
  • Nip band width adjustment: sp

    266
  • Memory all clear: sp

    267
  • Software reset

    268
  • Software download

    270
  • Uploading/downloading nvram data

    271
  • Downloading nvram data (sp)

    272
  • Detailed self-diagnostic mode

    274
  • User program mode

    276
  • Dip switches

    279
  • Paper path

    285
  • Drive layout

    286
  • Board structure

    287
  • Copy process overview

    291
  • Scanner drive

    294
  • Original size detection in platen mode

    295
  • Image processing

    297
  • Sbu (sensor board unit)

    298
  • Auto image density (ads)

    299
  • Ipu (image processing unit)

    300
  • Image processing modes

    301
  • Summary of image processing functions

    303
  • Image processing steps and related sp modes

    304
  • Pale (low-density mode)

    307
  • Generation copy mode

    308
  • Laser exposure

    318
  • Auto power control (apc)

    319
  • Dual beam writing

    320
  • Laser beam pitch change mechanism

    321
  • Ld safety switches

    322
  • Drum pawls

    324
  • Drum charge

    325
  • Charge roller voltage correction

    326
  • Correction for paper width and thickness (by-pass tray only)

    327
  • Id sensor pattern production timing

    328
  • Developer mixing

    330
  • Development bias

    331
  • Toner supply

    332
  • Toner near end/end detection

    335
  • Toner end recovery

    336
  • Drum cleaning and toner recycling

    337
  • Paper feed drive

    339
  • Paper lift

    340
  • Paper registration

    341
  • Paper size detection

    342
  • By-pass tray operation

    344
  • By-pass paper size detection

    345
  • Duplex drive layout

    347
  • Duplex basic operation

    348
  • Duplex unit feed in and exit mechanism

    349
  • Image transfer and paper separation

    350
  • Transfer belt unit contact mechanism

    351
  • Transfer belt charge

    353
  • Transfer belt cleaning mechanism

    356
  • Image fusing and paper exit

    357
  • Fusing drive

    358
  • Fusing entrance guide shift mechanism

    359
  • Cleaning mechanism

    360
  • Fusing temperature control

    361
  • Fusing idling temperature

    362
  • Energy saver modes

    363
  • Energy saver mode

    364
  • Auto off mode

    365
  • Specifications

    369
  • Power consumption

    370
  • Machine configuration

    371
  • Optional equipment

    373
  • Sheet finisher

    374
  • Bridge unit

    376
  • Replacement and adjustment

    379
  • Original feed unit

    380
  • Original feed belt

    381
  • Original length sensors

    383
  • Inverter /original set sensors

    384
  • Scanner motor and inverter motor

    385
  • Exit sensor

    387
  • Timing charts

    388
  • A4(s)/lt(s) double-sided original mode

    389
  • Jam detection

    390
  • Test points

    391
  • Main components

    392
  • Original size detection

    394
  • Mixed original size mode

    396
  • Original feed-in mechanism

    397
  • Original skew correction

    398
  • Original transport and exit

    399
  • Overall machine information

    405
  • Electrical component description

    408
  • Paper feed mechanism

    410
  • Tray unit slide mechanism

    412
  • Cover replacement

    414
  • Roller replacement

    415
  • Relay sensor replacement

    417
  • Side fence position change

    418
  • Mechanical component layout

    422
  • Electrical component layout

    423
  • Detailed descriptions

    426
  • Paper lift mechanism

    427
  • Paper end detection

    429
  • Paper height detection

    430
  • Tray motor replacement

    434
  • Paper feed and relay clutch replacement

    435
  • Detailed description

    445
  • Exit sensor replacement

    446
  • Mechanical component and drive layout

    450
  • Basic operation

    452
  • Cover removal

    453
  • Paper sensor replacement

    454
  • Junction gate mechanism

    465
  • Jogger unit paper positioning mechanism

    466
  • Exit guide plate open/close mechanism

    467
  • Feed out mechanism

    469
  • Shift tray up/down mechanism

    470
  • Shift tray side-to-side mechanism

    471
  • Jam conditions

    472
  • No staple mode (a4 sideways, 3 sheets/2sets)

    473
  • Staple mode (a4 sideways, 2 sheets/2 sets)

    474
  • Dip switch table

    475
  • Entrance sensor replacement

    478
  • Stack height sensor replacement

    480
  • Positioning roller replacement

    481
  • Stapler replacement

    482
  • Rom history

    483
  • External covers

    487
  • Positioning roller

    488
  • Exit guide plate motor

    491
  • Lower exit sensor

    493
  • Lower stack height sensors

    494
  • Stapler unit

    495
  • Tray 1 interior

    496
  • Tray shift sensors and tray release sensor

    497
  • Finisher main board

    498
  • A4(s)/lt(s) shift mode with punch – tray

    500
  • A4(s)/lt(s) staple mode with punch

    501
  • Dip switch settings

    503
  • General layout

    504
  • Junction gates

    506
  • Tray shifting

    507
  • Tray up/down mechanisms

    509
  • Pre-stack mechanism

    514
  • Stapler movement

    516
  • Feed out and transport

    518
  • Punch unit (optional)

    519
  • Punch waste collection

    520
  • Component layout

    524
  • Proof tray sensors

    529
  • Paper sensor

    530
  • Timing chart and misfeed detection

    531
  • Mailbox (g)

    533
  • Bridge unit for mailbox (g)

    537
  • Proof tray unit

    543
  • Tray unit

    544
  • Main control board

    546
  • Tray exit sensor adjustment

    547
  • Variable resistors

    550
  • Printer installation

    557
  • Postscript unit (g)

    563
  • Memory (g578/g)

    564
  • Nib (g)

    565
  • Ieee1394 interface (g)

    566
  • Checking the connections

    567
  • Controller errors

    571
  • Enabling and disabling service program mode

    575
  • Printer service mode

    576
  • Scanner service mode

    577
  • Firmware update procedure

    585
  • Printer user program mode

    586
  • Scanner user program mode

    587
  • Detailed section descriptions

    591
  • Controller functions

    592
  • Paper source selection

    593
  • Auto continue

    594
  • Paper output tray

    595
  • Scanner functions

    597
  • Led indicators

    598
  • Ieee1394 interface

    599
  • Pin assignment

    600
  • Remarks about this interface kit

    601
  • Supported paper sizes

    614
  • Software accessories

    616
  • System components

    618
  • Fax unit

    624
  • Flow chart

    625
  • Fax option type 1045 installation

    626
  • G3 interface unit type 1045 installation

    630
  • Isdn option type 1045 installation

    634
  • Error codes

    638
  • Error codes for the isdn option

    646
  • D-channel layer management

    647
  • D-channel network layer

    648
  • B-channel network layer

    649
  • Session layer

    650
  • Document layer

    651
  • Fax sc codes

    652
  • Fax sc code table

    653
  • Isdn test function

    654
  • Back-to-back test

    655
  • Bit switches

    667
  • Scanner switches

    679
  • Printer switches

    684
  • Communication switches

    689
  • G3 switches

    698
  • G3-2 switches

    706
  • G3-3 switches

    711
  • G4 internal switches

    712
  • G4 parameter switches

    719
  • Ncu parameters

    722
  • Dedicated transmission parameters

    733
  • Service ram addresses

    738
  • Ncu (us)

    753
  • Ncu (europe/asia)

    754
  • Sg3 board

    755
  • Sig4 board

    756
  • Video data path

    757
  • Fax communication features

    762
  • Document server

    766
  • Lan fax driver

    767
  • Firmware history

    769
  • Fax option software modification history

    771
  • Capabilities of programmable items

    778