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HP LaserJet 8100 Service Manual - Page 732

Step 5., Paper Path, Is the ADF feeding paper correctly? YES = Go to Step 6: Image

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Step 5. Paper Path Is the ADF feeding paper correctly? (YES = Go to Step 6: Image Quality) q Does the copy module cause damage to the original, experiencing frequent mispicks, double-feeds, jams, or skewed paper feeding? q Check paper types used by customer and suggest to use the flatbed if out of specification. q Determine if the ADF cleaning interval has been exceeded. (Check the configuration page. See "Sample Copy Module Configuration Page" on page 655 for an example. Inspect and clean the ADF assemblies as needed.) q Determine if the maintenance interval has been exceeded. (Check the configuration page. See "Sample Copy Module Configuration Page" on page 655 for an example. Inspect and replace the Pick Rollers and Separation Pad as needed.) q Try a copy from the flatbed to isolate the problem to the ADF mechanism or optics. q Confirm connection to the ADF (3 cables), confirm ADF Motor Belt, and perform a test of the ADF sensors in the copy module service mode to ensure each sensor moves freely. q Perform an ADF offset calibration (page 175). q Perform the ADF test in service mode or an offline test and inspect mechanisms for failure. Be sure to use paper that conforms to HP recommended paper specifications for this test. Replace implicated components. q See "Error Conditions" on page 727. 726 Chapter 7 Troubleshooting C4265-90907

Section	Page
Table of Contents	7
List of Tables	17
List of Figures	21
Product Information	31
Printer Features	32
Product Overview	37
External View of the Printer	37
External View of HP Digital Copier	40
Identification	43
Model and Serial Numbers	43
Paper-handling Devices, Accessories, and Options	44
Ordering Information	46
Hard Disk	53
Determining Memory Requirements	54
Paper Capacities and Sizes	56
Printer and Paper-handling Devices	56
Media Selection Guidelines	58
Printer Media Selection Guidelines	58
Copy Module Media Selection Guidelines	62
Service Approach	67
Ordering Parts	67
Exchange Program	68
Consumables	68
Toner Cartridge Life	68
Refilled Toner Cartridges and Non-HP Staple Cartridges	69
Recycling Toner Cartridges	69
Technical Assistance	70
HP FIRST (Fax Information Retrieval Support Technology)	70
Internet	70
World Wide Web	71
HP Reseller Sales and Service Support Line (US Only)	71
Other Areas	71
Regulatory Information	72
FCC Regulations	72
Environmental Product Stewardship	74
Material Safety Data Sheet	76
Environmental Conformity	77
Declarations of Conformity	78
Safety Statements	79
Warranty	83
Site Requirements	85
Operating Environment	86
Space Requirements	87
Environmental Requirements	90
Specifications	91
Printer and Paper-handling Devices	91
Copy Module	96
Operating Overview	97
Using the Printer Control Panel	98
Control Panel Layout	98
Indicator Lights	99
Settings and Defaults	100
Printer Driver Information	100
Paper Source Default	101
Performing a Cold Reset	102
Setting the Display Language	102
Printer Control Panel Menus	106
HP LaserJet 8100 Series Quick Copy Jobs Menu	107
HP LaserJet 8100 Series Private/Stored Jobs Menu	107
HP LaserJet 8150 Series Quick Copy Menu	108
HP LaserJet 8150 Series Private/Stored Jobs Menu	108
Information Menu	110
Paper Handling Menu	111
Print Quality Menu	114
Printing Menu	116
Configuration Menu	119
Configuration of MBM Menu	124
I/O Menu	125
EIO Menu	127
Duplex Registration Menu	129
Resets Menu	131
Using the HP Digital Copier Front Panel	132
HP Digital Copier Front Panel	133
HP Digital Copier Settings	142
Loading Documents into the ADF	144
Loading Documents onto the Flatbed	146
Printer Service Mode	147
Setting Page Count, Maintenance Count, and Serial Number	149
Setting the Cold Reset Default Paper Size	150
HP Digital Copier Service Mode	151
HP Digital Copier Administrator Mode	153
Remote Upgrade of the Printer Firmware	154
Upgrade HP Digital Copier Firmware	156
Testing the Printer	159
Paper Path Test	159
Configuration Page	159
Maintenance and Adjustments	163
Cleaning the Printer and Paper Handling Accessories	164
Cleaning Spilled Toner	166
Cleaning the HP Digital Copier	167
Materials	167
Vacuum Specifications	167
Cleaning ADF and Glass	168
Cleaning the Document Cover, Document Holder, and Flatbed Glass	168
Cleaning the ADF	169
Copy Module Optics Cleaning	171
Cleaning the ADF Lamp and Mirrors	171
Lubricating the ADF Gears	171
Cleaning the Carrier Unit and Mechanical Assemblies	172
Lubricating the Carrier Unit Shaft	172
Lubricating the Top of the Carrier Guide Rail	172
Lubricating the Flatbed Motor Gears	172
Cleaning the Front Panel	172
Maintaining the Printer	173
Maintaining the Copy Module	174
HP Digital Copier Maintenance Parts	174
Adjusting Printer Input Trays	175
Adjusting for Edge-to-Edge Printing	175
Adjusting Input Trays for Normal Printing	176
Adjusting the 2000-sheet Printer Input Tray	178
Adjusting Duplex Registration of the Paper Trays	180
Adjusting the Copy Module	181
Types of Adjustment	181
When to Calibrate or Adjust the Copy Module	181
Calibration Target	181
Entering the Calibration Menu in Service Mode	182
How to Perform an Offset Adjustment Calibration	183
How to Perform a Density Calibration Adjustment	183
How to Perform an ADF Vertical Magnification Adjustment	183
Functional Overview	185
Printer Functional Overview	186
Power Distribution System	187
AC Power Distribution	188
Overcurrent/Overvoltage Protection	188
High Voltage Power Distribution	189
Formatter System	191
DC Controller System	194
Laser and Scanner Drive	194
Paper Motion Monitoring and Control	194
Clutches	194
Engine Test Microswitch	195
Motors	195
Image Formation System	196
Toner Cartridge	197
Drum Cleaning	199
Drum Conditioning	200
Image Writing	201
Image Developing	203
Image Transferring and Media Separation	205
Image Fusing	206
Paper Paths and Components	207
Printer, Duplexer, and Envelope Feeder	207
Paper Size Switches (Trays 2 and 3)	210
Printing from Tray 1	211
Printing from Trays 2 and 3	211
Printing from the Envelope Feeder	212
Printing with the Duplexer	212
2000-sheet Input Tray (Tray 4) Components	213
2000-Sheet Input Tray Operation	215
2 x 500-sheet Input Tray	218
2x500-sheet Input Tray Operation	220
7-bin Tabletop Mailbox Components	222
7-bin Tabletop Mailbox Operation	224
8-bin Mailbox Components	228
8-bin Mailbox Operation	231
Finisher Components	233
Stapler Unit Operation	235
Main Functional Cycles of the Stapler (Internal Paper Path)	238
Communication Link (Daisy Chain)	239
Paper Jam Detection	241
IEEE 1284 Parallel Cable Information	243
Copy Module System	244
Function and Layout of the Copy Processor	246
Copy Module Power Up Process	248
Copy Processor Board	248
Copy Module	250
Printer components of copy module power up process	251
Notes About the MFP Printer Product ID	251
ADF Simplex Operation	252
ADF Duplex Operation	253
Copy Module Image Path	255
Communication with the Printer	257
Communication Channels	257
Print Job Interrupt	257
Paper Path and Sensors	258
Removal and Replacement	261
Removal and Replacement Strategy	262
Electrostatic Discharge (ESD) Precautions	262
Required Tools	263
User Installable Accessories	264
Hardware Table	272
Printer Assembly Removal and Replacement	274
Control Panel	275
Covers	277
Delivery Unit (for Face-down Bin)	286
Diverter Assembly	289
Diverter Door Assembly	290
Lower Right Door Assembly	291
Fan 1, Laser/Scanner and Housing (Exhaust)	294
Fan 2, Low Voltage Power Supply (Exhaust)	296
Fan 3, Formatter Fan and Housing (Intake)	297
Fan 4, Delivery Unit (Exhaust)	298
Fan 5, Tray 1 (Intake)	299
Tray 1	301
Tray 1 Pickup Assembly	304
Feeder Assembly	308
Formatter Assembly	310
Fusing Assembly	312
Laser/Scanner Assembly	314
Main Gear Assembly	316
Main Motor Assembly	319
Paper Input Unit (PIU)	320
PCA, DC Controller	321
Output Paper Sensor PCA	322
High Voltage Power Supply (HVPS)	329
Low Voltage Power Supply (LVPS)	330
Registration Assembly	331
Tray 1 Feed Roller and Separation Pad	334
Tray 2 and 3 Pickup, Feed, and Separation Rollers	336
Paper Input Unit Sensor (PS2)	338
Registration Sensor (PS1)	340
Face-up Solenoid Assembly (SL3)	342
Transfer Roller Assembly	343
Tray 2 and 3 Assemblies	345
2000-sheet Input Tray Removal and Replacement	347
Orientation	347
Front Cover	349
Back Cover	350
Left Cover	351
Right Cover	352
Main Drive Assembly	353
Paper Tray	355
Main Cable Harness	356
Controller PCA	358
Front LED PCA Assembly	360
Pickup Assembly	362
Power Supply	364
Pickup, Feed, and Separation Rollers	366
Paper Quantity Switch Assembly	369
Paper Size Switch Assembly	369
Vertical Transfer Unit (VTU)	372
Tension Springs	374
Locating Pins	375
Casters and Stabilizing Feet	376
Adjustable Foot	377
2 x 500-sheet Input Tray Removal and Replacement	378
Orientation of the 2x500-sheet Input Tray	379
Back Cover	380
Left Cover	381
Vertical Transfer Unit (VTU)	382
Right Cover	385
Front Top Cover	388
Trays 4 and 5	391
Pickup Assembly	393
Paper Deck Drive Assembly	395
Pickup, Feed, and Separation Rollers	397
Controller PCA	398
Tray-Size Sensing PCA	399
Power Supply	401
Main Cable	402
Storage Paper Tray	404
Front Door (Storage Area)	405
Casters	406
Foot Tip and Adjustable Foot Tip (Stabilizing Feet)	407
Locating Pins	408
Front LED PCA	409
Envelope Feeder	410
7-bin Tabletop Mailbox Removal and Replacement	411
Orientation of the 7-bin Tabletop Mailbox	412
Front Cover	413
Back Cover	416
Top Cover	418
Controller PCA	422
Power Supply	423
Right Door Assembly (Paper Path Cover)	424
Face-down Bins	429
Empty Bin Sensor PCA	432
Full Bin and Interlock Sensor PCA	434
LED PCA	436
Face-up Sensors PCA	437
Reversing Mechanism Motor	438
Face-up/Diverter Assembly (Flipper)	440
Short Tray 7	443
Solenoid Reversing Mechanism	444
Flipper Solenoid	445
Handle	446
Latching Mechanism	447
Cover Latch	448
8-bin Mailbox Removal and Replacement	449
Orientation	450
Front and Back Covers	451
Top Cover	453
Power Supply	454
Paper Bins and Blind Cover	455
Flipper Assembly	456
Delivery Head Motor	459
Transport Belt Motor	460
Input Paper Guide	462
Metal Tape and Housing Assembly	464
Controller PCA	466
Anticurl Strings	468
Delivery Head Assembly	470
Interlock Switch	475
Diagnostic LED PCA	476
User Status LED PCA	478
Adjustable and Fixed Casters	480
Attachment Assembly	481
Stapler Assembly Removal and Replacement	482
Mailbox with Stapler, Stapler Removal or Installation	483
Back Plate	485
Stapler Controller PCA	487
Top Cover Assembly	490
Stapler Bed Assembly	491
Hinges	493
Duplexer	494
HP Digital Copier Removal and Replacement	495
Installing the HP Digital Copier	496
Install the Optional Output Accessory	499
Install the Copy Connect EIO Board into the Printer	500
Install the Copy Connect Cable	501
Hardware Table	503
Orientation of the HP Digital Copier	505
Copy Module Maintenance Parts	506
Separation Pad Assembly	506
Pick Roller Assembly	507
Copy Module Skins	511
Document Holding Pad	511
Paper Chute Flip-out	512
Output Tray Flip-out	513
Output Tray	513
Flatbed (FB) Cover Assembly	514
ADF Latch Cap	517
ADF Cover	518
Front Panel	520
Panel Cover	525
Front Panel Brackets	526
Upper Cover	528
Copy Module Power Supply/Main Board Assemblies	530
Copy Processor Board	530
Power Supply and Main Board Tray	531
RFI Cover	533
Control PCA	535
Fan	538
Power Supply	539
Back PCA	540
Copy Module ADF Unit Assemblies	541
Optical Unit	541
ADF Lamp PCA	543
ADF Lamp	545
Sensor Unit Assembly	546
ADF Motor Unit	549
ADF Belt	550
LED Assembly PCA	552
ADF Unit	553
Copy Module Flatbed Assemblies	555
Front Panel Frame Ground Spring	555
Output Tray Brackets	556
Glass Plate Assembly	557
Home Position Sensor	559
Carrier Unit Lamp	561
Carrier Unit	564
Felt Pad	568
Feet	569
Frame Ground Spring	570
Front Lamp PCA	571
Junction PCA and Cover	572
Front Panel Ribbon Cable	574
Carrier Belt and Motor	576
Troubleshooting	579
Troubleshooting Process	580
Printer System Troubleshooting Process	583
Printer/Paper-Handling Troubleshooting Process	584
Copy Module Troubleshooting Process	586
Troubleshooting the Print System	588
Preliminary Operating Checks	588
Communication	589
Interface Troubleshooting	589
Network Troubleshooting	591
Verify Host System Operation	593
Verify Network and Server Operation	593
General Troubleshooting Information	594
Miscellaneous Problems and Solutions	594
Paper Curl	599
Troubleshooting the Printer and Paper-handling Devices	600
Engine Test	603
Event Log Pages	604
Printer Message Tables	613
Engine Error Messages	614
Input Device Messages	626
Output Device Messages	634
Finisher Devices Messages	646
Paper Handling Controller Error Messages	650
Paper Jams	652
Paper Path Test	654
Menu Map	657
Configuration Pages	659
File Directory Page	662
Usage Page	663
Check the Toner Cartridge	668
Image Quality Tables	669
Repetitive Defect Ruler	682
Image System Troubleshooting	684
High-Voltage Power Supply Check	685
Self-Diagnostics on Paper-handling Devices	687
2000-sheet Input Tray Standalone Diagnostics	687
2 x 500-sheet Input Tray Standalone Diagnostics	691
7-bin Tabletop Mailbox Standalone Diagnostics	695
8-bin Mailbox Standalone Diagnostics	700
Diagrams	708
Status Messages	726
Testing the Copy Module	736
Copy Processor LED Test	736
Copy Module Boot Up Icon Conditions	738
Copy Module Offline Test	739
Other Tests	741
Service Mode Tests	743
Parts and Diagrams	745
How to Use the Part Lists and Diagrams	746
Ordering Parts	746
Common Hardware	746
Illustrations and Parts Lists	747
Printer and paper-handling components	748
Printer Parts and Diagrams	750
Paper-Handling Devices Parts and Diagrams	764
Input Devices	764
Output Devices	771
HP Digital Copier Parts and Diagrams	782
Alphabetical Parts List (Printer and Paper- handling Devices)	797
Alphabetical Parts List (Copy Module)	807
Numerical Parts List (Printer and Paper-handling devices)	811
Numerical Parts List (Copy Module)	821