OKIDATA DOC-IT4000 Laser Printer Supplies Manuals

Manuals and User Guides for OKIDATA DOC-IT4000 Laser Printer Supplies. We have 1 OKIDATA DOC-IT4000 Laser Printer Supplies manual available for free PDF download: Service Manual

OKIDATA DOC-IT4000 Service Manual

OKIDATA DOC-IT4000 Service Manual (428 pages)

Brand: OKIDATA | Category: Printer | Size: 4.94 MB

Table of Contents

Table of Contents
3
About this Manual

10
1 Product Specifications

11
- General Description
  11
- General Specifications
  12
- DOC-IT Controller Specifications
  14
- Printer Specifications
  15
- Facsimile Specifications
  17
- Scanner Specifications
  19
- Copier Specifications
  21
- Options
  22
- Consumables
  23
- Reliability Data
  24
- Agency Approvals
  25
2 Principles of Operation

26
- Electrical Principles of Operation
  26
- Main Control Board
  27
- Cpu (80C154)
  27
- Memory Map (on Master CPU Side)
  27
- Address Decoder
  31
- Program ROM
  32
- Ram
  33
- WRITE 1 Waveforms (OE Clock)
  35
- Image Control LSI
  36
- Memory Configuration
  37
- External RAM Access
  38
- Scanner Control LSI
  39
- Line Memory Read/Write Waveforms
  40
- Peripheral Interface Controller
  43
- Operator Panel
  44
- Serial Video Interface
  45
- Image Sensor Control Board
  46
- Printer Unit Block Diagram
  48
- Printer Control Board
  49
- Fuser Unit
  52
- Main Motor
  54
- LED Array
  56
- Sensor and Switch Control
  58
- Resist Motor
  59
- Fan
  60
- Main Control Board
  61
- Video Interface
  62
- Second Tray Interface
  63
- Block Diagram of Serial Interface
  64
- Power Supply Unit
  65
- High-Voltage Generation
  66
- RESET Control
  67
- Power Supply Control Signals
  68
- DOC-IT Controller
  69
- Doc-It Controller Block Diagram
  70
- Doc-It Host Communication Controller
  72
- Doc-It Integrated Peripheral Controller
  75
- Mechanical Operation
  79
- Electrostatic Printing - Overview
  80
- Exposure
  80
- Developing
  80
- Transfer
  80
- Cleaning
  80
- Fusing
  80
- Paper Ejection
  93
- Toner Recycling
  94
- ADF Hopping and Feeding
  95
- Sensors and Switches
  97
- Alarm Detection
  100
- Software Configuration
  101
- File Descriptions
  102
- Software Power-Up Sequence
  104
- Software Functional Components
  105
3 Maintenance & Disassembly

111
- Maintenance
  111
- Maintenance Precautions
  112
- Maintenance Tools
  114
- Disassembly/Assembly Procedures
  115
- Flowchart
  115
- Preliminary Items
  132
- Ozone Filter
  134
- Transfer Charger Assembly
  136
- LED Head
  138
- Operator Panel Assembly
  140
- Upper Cover
  142
- Stacker Open and Scanner Open Lever Assemblies
  144
- Automatic Document Feed (ADF) Unit
  146
- Mini-Pitch Belt (ADF)
  148
- ADF Gears
  150
- ADF Pulse Motor
  152
- ADF Hopping Roller Assembly
  154
- ADF Paper Set and Conveyor Frame Cover Support
  156
- Brake Roller Assembly
  158
- Inlet and Paper Sensor Levers
  160
- SPAX Board (PS1 and PS2 Sensors)
  162
- ADF Pulleys
  164
- ADF Lower Base and Sequential Guide Assemblies
  166
- ADF Left Side Frame
  168
- ADF White, Exit, and Resist Rollers
  170
- Timing Sensor Lever Assembly
  172
- SPAX Board (PS3 and PS4 Sensors)
  174
- Main Controller Board (SPSX)
  176
- Paper Supply Unit
  178
- Pulse (Resist) Motor
  180
- Engine Connector Board, LLCC-2
  181
- Hopping Roller a
  183
- Separator
  185
- Engine Controller Board (SPPY)
  187
- Lower PCB Shield
  189
- Main Motor
  190
- Idle Gear A, Idle Gear B, and Speed Reduction Gear
  192
- DC Fan Assembly
  193
- Cover Open Microswitch Assembly
  194
- High Voltage Power Board
  195
- Power Supply Unit
  197
- High Voltage Connector
  199
- Exit Roller Assembly
  201
- Paper Eject Sensor Lever and Rollers
  203
- Upper Unit
  205
- Cover Open Switch Actuator
  207
- Paper Eject Sensor Levers B and C
  208
- Fusing Unit
  209
- Metal Pressure Roller Assembly
  211
- Resist Sensor Lever and Toner Sensor Lever
  213
- Lock Lever Assembly
  214
- LED Head Holder
  216
- LED Holder Ground Plate
  217
- Back-Up Roller Assembly
  219
- Idle Gear and Post
  221
- Registration Roller Assembly
  222
- Scanner Unit Assembly
  224
- Scanner Upper Case
  226
- Scanner Cable
  227
- Scanner Board (SPHY)
  228
- Base Frame
  229
- Memory Expansion Board (DOC-IT Controller)
  230
- Second Paper Feed Unit (Option)
  232
- Second Paper Feed Unit Boards and Connectors
  234
- Second Paper Supply Unit (Option)
  236
- Cassette Spring (Second Paper Supply Unit)
  237
- Resist Motor (Second Paper Supply Unit)
  238
- Second Paper Supply Unit Control Board, LLFC
  239
- Second Paper Supply Unit Hopping Roller
  240
- Second Paper Supply Unit Separator
  242
- Adjustments and Service Settings
  243
- Chart 3.3A Adjustments, Modes, and Service Checks Listed
  245
- Chart 3.3B Adjustments, Modes, and Service Checks Listed
  247
- Maintenance Mode
  249
- Chart of Maintenance Mode Adjustments and Service
  250
- LED Head Type Selection and Drive Time Setting
  251
- ADF Slip Adjustment
  253
- Scanner Shading Adjustment
  255
- Administration Mode
  257
- Chart of Administration Mode Adjustments and Service
  258
- Buzzer Level
  259
- Engine Version
  260
- Keyclick Length
  261
- Print Darkness Control
  262
- Print Start Position Adjustment
  263
- Drum Counter Reset
  264
- Scan Start Position Adjustment
  265
- Software Version
  266
- Time to Quiet
  267
- Save Configuration Setting
  268
- Restoring Factory Defaults
  269
- Service Mode
  270
- Chart of Service Mode Adjustments and Service Checks
  271
- Automatic Document Feeder (ADF) Paper Feed Counter
  272
- Drum Counter
  273
- Fuser Counter
  275
- Total Printed Page Counter
  276
- Scan Counter
  277
- Toner Counter
  278
- Cleaning
  280
- Static Charger
  281
- Transfer Charger
  283
- LED Lens Array
  284
- Hopping Roller
  286
- Resist Roller
  287
- Back-Up Roller
  288
- Printer Unit
  289
- Covers
  290
- Scanner Glass
  291
- ADF White Roller
  292
- ADF Resist Rollers
  293
- ADF Hopping Roller
  294
- Lubrication
  295
4 Failure & Repair Analysis

296
- General Information
  296
- Okilink
  297
- Troubleshooting Procedures - Using the RAPS
  298
- RAP Index
  301
- RAP#1 - Paper Feed Error
  303
- RAP#2 - Paper Jam Error
  305
- RAP#3 - Paper Size Error
  306
- RAP#4 - Fuser Unit Error
  307
- RAP#5 - Engine Error
  308
- RAP#6 - ADF Jam Error
  309
- RAP#7 - Image Light or Blurred
  310
- RAP#8 - Scanned Images Light or Blurred
  311
- RAP#9 - Dark Background Density
  312
- RAP#10 - Scanned Image (Dark Backgrond Density)
  313
- RAP 11: Blank Paper Is Output
  314
- RAP#12 - Scanned Image (Blank Paper Is Output)
  315
- RAP#13 - Vertical Black Stripes on the Output
  316
- RAP#14 - Printed Scanned Images with Vertical Black
  317
- RAP#15 - Repetitive Spaced Marks on Printed Output
  318
- RAP#16 - Print Missing from Output
  319
- RAP#17 - Poor Fusing
  320
- RAP#18 - White Vertical Stripes on Printed Output
  321
- RAP#20 - 2Nd Paper Tray Cannot be Selected
  323
- RAP#21 - no Operation Panel Functions
  324
- RAP#22 - Facsimile Transmit Error
  325
- RAP#23 - Facsimile Receive Error
  326
- RAP#24 - Doc-It Does Not Initialize
  327
- RAP 25: Black Page Is Output
  328
- LCD Error Messages
  329
- Index to Tables
  330
- Immediate Error Message Displayed
  331
- Maintenance Mode Error Messages
  332
- Doc-It Engine Error Messages
  333
- POWERON.EXE - Operational Error Messages
  334
- POWERON.EXE - Diagnostic Error Messages
  336
- DOC-IT Controller - Diagnostic Tests
  338
- Confidence Test
  339
- Using the Poweron Test with /T and /D Commands
  340
- Memory Test
  341
- Controller Board Test
  343
- Maintenance Mode
  345
- Maintenance Mode Selection
  346
- Index to Charts
  349
- Main Controller Board (SPSX) W/O ROM
  351
- Engine Controller Board (SPPY) W/O ROM
  354
- Operation Panel Board (RCDP)
  356
- Engine Connection Board (LLCC-2)
  358
- Scanner Board (SPHY)
  360
- ADF Sensor Board (SPAX)
  363
- Second Tray Controller Board (LLFC)
  365
- Second Tray Connection Board (LLIF)
  367
- Power Connector Board (LLIE)
  369
- Power Supply Assembly
  371
- DOC-IT Controller Board (PPB)
  373
- Second Tray Connection Board (LLIG)
  375
B Illustrated Parts Listing

378
- General Information
  378
- Definition of Terms
  379
- Parts Ordering Information
  380
- Charts
  381
- Upper Unit
  381
- Paper Supply Unit
  381
- B.2.06 Lower Unit
  397
- B.2.09 Paper Exit Assembly
  404
- B.2.10 Paper Supply Unit
  406
- Automatic Document Feed (ADF) Unit
  409
- Automatic Document Feed (ADF) Unit
  412
- Scanner Unit
  415
- Packing Materials
  417
- B.2.15 Consumables
  419
- Consumables
  420
- B.2.16 Options
  421
- Second Tray Unit
  423
- Second Tray Unit Packing Materials
  425
C Problem Reports

428
- Problem Reports
  428
- Reporting Problems
  428

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