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HP LaserJet 8000

Tags : HPLaserJet80008000DN8000NMopier240C4085AC4086AC4087AC4228AC4085-91087 
HP LaserJet 8000 Manuel de service

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Description

HP LaserJet 8000 Service Manual
Publication number C4085-91087
First edition, November 1998

HP LaserJet 8000 (C4085A)
HP LaserJet 8000 N (C4086A)
HP LaserJet 8000 DN (C4087A)
HP LaserJet Mopier 240 (C4228A)

1 Product Information
Printer Features. .2
Paper Capacities and Sizes . .4
Identification . .6
Model and Serial Numbers . .6
Specifications .7
Media Selection Guidelines. .11
Paper .11
Envelopes . .11
Adhesive Labels .12
Transparencies . .13
Storing Print Media .13
Shipping Print Media. .13
Product Overview .14
External View of HP LaserJet 8000/N/DN Engine .14
External View of HP Mopier 240 .16
Formatter Assemblies.18
Accessories and Options. .19
Ordering Information . .20
Hard Disk . .26
Determining Memory Requirements . .26
Service Approach .28
Ordering Parts.28
Exchange Program .29
Consumables .29
Toner Cartridge Life . .29
Refilled Toner Cartridges & Non-HP Staple Cartridges .30
Recycling Toner Cartridges . .30
Technical Assistance.31
HP FIRST (Fax Information Retrieval Support
Technology) .31
Internet . .32
World Wide Web.32
HP Reseller Sales and Service Support Line .32
Other Areas.32
Warranty . .33
Regulatory Information .35
FCC Regulations . .35
Environmental Product Stewardship .36
Protecting the Environment.36
Material Safety Data Sheet . .38
Environmental Conformity .39
Declaration of Conformity .40
Safety Statements .42
Laser Safety Statement .42
Canadian DOC Regulations . .42
VCCI Statement (Japan).42
Korean EMI statement . .43
Laser Statement for Finland . .43
2 Site Requirements
Operating Environment .46
Space Requirements.47
Environmental Requirements . .49
3 Operating Overview
Using the Control Panel . .52
Control Panel Layout .52
Indicator Lights . .53
Settings and Defaults .54
Printer Driver Information . .54
Paper Source Default .54
Resetting the Printer .55
Setting the Display Language .55
Control Panel Menus.58
Information Menu . .59
Paper Handling Menu .60
Print Quality Menu .62
Printing Menu .64
Configuration Menu.67
I/O Menu .70
EIO Menu . .72
Resets Menu. .74
Service Mode . .75
Setting Page Count, Maintenance Count,
and Serial Number . .78
Setting the Cold Reset Default Paper Size .79
Testing the Printer .80
Paper Path Test .80
Configuration Page .80
 4 Maintenance and Adjustments
Cleaning the Printer and Accessories . .82
Cleaning Spilled Toner . .84
Preventative Maintenance.85
Tray Adjustment Procedure. .86
Tray 4 (2000-sheet Input Tray) Adjustment Procedure .88
5 Functional Overview
Printer Functional Block Diagram .92
Power Distribution System . .93
AC Power Distribution.94
Overcurrent/Overvoltage Protection . .94
High Voltage Power Distribution .95
Formatter System .96
DC Controller System . .99
Laser and Scanner Drive . .99
Paper Motion Monitoring and Control .99
Clutches .99
Engine Test Microswitch . .100
Motors. .100
Image Formation System . .101
Toner Cartridge.102
Drum Cleaning .104
Drum Conditioning . .105
Image Writing . .106
Image Developing.108
Image Transferring and Media Separation . .110
Image Fusing . .111
Paper Paths and Components . .112
Printer, Duplexer, and Envelope Feeder. .112
Paper Size Switches (Trays 2 and 3) . .115
Printing from Tray 1 .115
Printing from Trays 2 and 3. .115
Printing from the Envelope Feeder . .116
Printing with the Duplexer .116
Printing from the Custom Height and Size Paper Tray .116
2000-sheet Input Tray (Tray 4) Components . .117
2000-Sheet Input Tray Operation .119
2 x 500-sheet Input Tray . .122
2 x 500-sheet Input Tray Operation .124
7-bin Tabletop Mailbox Components . .126
7-bin Tabletop Mailbox Operation.128
8-bin Mailbox Components . .132
8-bin Mailbox Operation . .135
Finisher Components . .137
Stapler Unit Operation .139
Main Functional Cycles of the Stapler
(Internal Paper Path) .141
Communication Link (Daisy Chain). .142
Paper Jam Detection. .144
Printer Timing .144
IEEE 1284 Parallel Cable Information.147
6 Removal and Replacement
Removal and Replacement Strategy. .150
Required Tools . .151
User Installable Accessories . .152
Hardware Table. .160
Engine Removal and Replacement.162
Control Panel . .163
Covers. .165
Delivery Unit (for Standard Output Bin) . .174
Diverter Assembly.177
Diverter Door Assembly . .178
Lower Right Door Assembly .179
Fan 1, Laser/Scanner and Housing (Exhaust) .182
Fan 2, Low Voltage Power Supply (Exhaust) . .184
Fan 3, Formatter Fan and Housing (Intake) .185
Fan 4, Delivery Unit (Exhaust) .186
Tray 1 . .187
Tray 1 Pickup Assembly . .190
Feeder Assembly .194
Formatter Assembly .196
Fusing Assembly. .198
Laser/Scanner Assembly .200
Main Gear Assembly.202
Main Motor Assembly . .205
Paper Input Unit (PIU). .206
PCA, DC Controller. .207
Output Paper Sensor PCA . .208
High Voltage Power Supply (HVPS).215
Low Voltage Power Supply (LVPS) .216
Registration Assembly .217
Tray 1 Feed Roller and Separation Pad . .220
Tray 2 and 3 Pickup, Feed, and Separation Rollers .222
Paper Input Unit Sensor (PS2) .223
Registration Sensor (PS1) . .225
Face-up Solenoid Assembly (SL3) . .227
Transfer Roller Assembly .228
Tray 2 and 3 Assemblies .230
2000-sheet Input Tray Removal and Replacement.231
Orientation . .232
Front Cover. .233
Back Cover . .234
Left Cover .235
Right Cover. .236
Main Drive Assembly . .237
Paper Tray . .239
Main Cable Harness .240
Controller PCA .242
Front LED PCA Assembly.244
Pickup Assembly. .246
Power Supply . .248
Pickup, Feed, and Separation Rollers .250
Paper Quantity Switch Assembly .253
Paper Size Switch Assembly . .253
Vertical Transfer Unit (VTU) .255
Tension Springs . .257
Locating Pins . .258
Casters and Stabilizing Feet .259
Adjustable Foot .260
2 x 500-sheet Input Tray Removal and Replacement .261
Orientation of the 2 x 500-sheet Input Tray .262
Back Cover . .263
Left Cover .264
Vertical Transfer Unit (VTU) .265
Right Cover. .268
Front Top Cover . .271
Trays 4 and 5 . .274
Pickup Assembly. .276
Paper Deck Drive Assembly .278
Pickup, Feed, and Separation Rollers .280
Controller PCA .281
Tray-Size Sensing PCA . .282
Power Supply . .284
Main Cable . .285
Storage Paper Tray. .287
Front Door (Storage Area) . .288
Casters .289
Foot Tip and Adjustable Foot Tip (Stabilizing Feet) .290
Locating Pins . .291
Front LED PCA .292
7-bin Tabletop Mailbox Removal and Replacement . .293
Orientation of the 7-bin Tabletop Mailbox .294
Front Cover. .295
Back Cover . .298
Top Cover .300
Controller PCA .304
Power Supply . .305
Right Door Assembly (Paper Path Cover) . .306
Face-down Bins . .310
Empty Bin Sensor PCA.313
Full Bin and Interlock Sensor PCA . .315
LED PCA. .317
Face-up Sensors PCA .318
Reversing Mechanism Motor . .319
Face-up/Diverter Assembly (Flipper) . .321
Short Tray 7 .324
Solenoid Reversing Mechanism . .325
Flipper Solenoid . .326
Handle. .327
Latching Mechanism.328
Cover Latch. .329
8-bin Mailbox Removal and Replacement. .330
Orientation . .331
Front and Back Covers .332
Top Cover .333
Power Supply . .334
Paper Bins and Blind Cover .335
Flipper Assembly .336
Delivery Head Motor .339
Transport Belt Motor .340
Input Paper Guide.342
Metal Tape and Housing Assembly .344
Controller PCA .346
Anticurl Strings .348
Delivery Head Assembly. .350
Interlock Switch.355
Diagnostic LED PCA.356
User Status LED PCA. .358
Adjustable and Fixed Casters . .360
Attachment Assembly . .361
Stapler Assembly Removal and Replacement . .362
Mailbox with Stapler, Stapler Removal or Installation. .363
Back Plate.365
Stapler Controller PCA .367
Top Cover Assembly.370
Stapler Bed Assembly. .371
Hinges. .373
7 Troubleshooting
Troubleshooting Process.376
Printer and Paper-Handling Troubleshooting Process .378
Troubleshooting the Printing System .380
Preliminary Operating Checks .380
General Troubleshooting Information .381
Miscellaneous Problems and Solutions . .381
Paper Curl.386
Power On . .387
Engine Test. .390
Display.391
Event Log .391
General Paper Path Troubleshooting .395
Paper Jams. .396
Paper Path Test . .398
Printer Messages . .401
Control Panel Messages and Errors .401
Printer Message Tables . .403
Self - Diagnostics on Paper-handling Devices . .440
2000-sheet Input Tray Stand-alone Diagnostics. .440
2 x 500-sheet Input Tray Standalone Diagnostics . .444
7-bin Tabletop Mailbox Standalone Diagnostics. .448
8-bin Mailbox Stand-alone Diagnostics.453
Information Pages . .461
Menu Map.461
Configuration Page . .463
Communication . .467
Interface Troubleshooting .467
Image Quality .469
Check the Toner Cartridge . .470
Image Quality Tables . .471
Repetitive Defect Ruler .484
Image System Troubleshooting . .485
High-Voltage Power Supply Check. .486
Network Troubleshooting . .488
Verify Host System Operation. .490
Verify Network and Server Operation . .490
Diagrams .491
8 Parts and Diagrams
How to Use the Part Lists and Diagrams . .506
Ordering Parts. .506
Accessories and Supplies . .507
Common Hardware. .507
Illustrations and Parts Lists .507
Printer and Paper-Handling Components . .508
Printer Parts and Diagrams .512
Paper-Handling Devices Parts and Diagrams.524
Input Devices . .524
Output Devices .532
Alphabetical Parts List.544
Numerical Parts List . .555



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