HP LJ M5025, LJ M5035 Service Manual

HP LaserJet M5025/M5035 MFP Series printers

Service manual

HP LaserJet M5025 and HP LaserJet M5035

Series MFP

Service Manual

Copyright and License

© 2006 Copyright Hewlett-Packard

Development Company, L.P.

Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws.

The information contained herein is subject to change without notice.

The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

Part number: Q7829-90908

Edition 1, 10/2006

Trademark Credits

Adobe®, Acrobat®, and PostScript® are trademarks of Adobe Systems Incorporated.

Linux is a U.S. registered trademark of Linus Torvalds.

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Java ™ is a U.S. registered trademark of Sun Microsystems, Inc.

Table of contents

1 Basics
Device comparison ...............................................................................................................................	2
Features comparison ............................................................................................................................	3
Walkaround ..........................................................................................................................................	5
Device parts .........................................................................................................................	5
Interface ports ......................................................................................................................	8
Device software ....................................................................................................................................	9
Supported operating systems ..............................................................................................	9
Supported printer drivers .....................................................................................................	9
Select the correct printer driver ..........................................................................................	10
Universal printer drivers ....................................................................................	10
Driver Autoconfiguration ....................................................................................	10
Update Now ......................................................................................................	11
HP Driver Preconfiguration ...............................................................................	11
Priority for print settings .....................................................................................................	11
Open the printer drivers .....................................................................................................	12
Software for Macintosh computers ....................................................................................	13
Remove software from Macintosh operating systems ......................................	13
Utilities ...............................................................................................................................	14
HP Web Jetadmin .............................................................................................	14
Embedded Web server .....................................................................................	14
Send Fax Driver ................................................................................................	14
HP Easy Printer Care software .........................................................................	15
Supported operating systems ...........................................................	15
Supported browsers .........................................................................	15
Other components and utilities ..........................................................................	15
2 Installation and configuration
Site requirements ...............................................................................................................................	18
Operating environment ......................................................................................................................	20
I/O configuration .................................................................................................................................	21
USB configuration ..............................................................................................................	21
Network configuration ........................................................................................................	21
Configure TCP/IPv4 parameters .......................................................................	22
Set an IP address .............................................................................	22
Set the subnet mask .........................................................................	22
Set the default gateway ....................................................................	23
Configure TCP/IPv6 parameters .......................................................................	23
Disable network protocols (optional) .................................................................	24

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Disable IPX/SPX ...............................................................................	24
Disable AppleTalk .............................................................................	24
Disable DLC/LLC ..............................................................................	24
HP Jetdirect EIO print servers ...........................................................................	25
Installing printer memory ....................................................................................................................	26
To install printer memory ...................................................................................................	26
3 Manage and maintain the device
Use the embedded Web server ..........................................................................................................	30
Open the embedded Web server by using a network connection .....................................	30
Embedded Web server sections ........................................................................................	31
Use HP Web Jetadmin software ........................................................................................................	33
Use the HP Printer Utility for Macintosh .............................................................................................	34
Open the HP Printer Utility .................................................................................................	34
HP Printer Utility features ..................................................................................................	35
Use the Administration menu .............................................................................................................	36
Navigate the Administration menu .....................................................................................	36
Information menu ...............................................................................................................	36
Default Job Options menu .................................................................................................	37
Default Options for Originals .............................................................................	37
Image adjustment ..............................................................................................	39
Default Copy Options ........................................................................................	40
Default Fax Options ..........................................................................................	41
Default E-mail Options ......................................................................................	42
Default Send to Folder Options .........................................................................	43
Default Print Options .........................................................................................	44
Time/Scheduling menu ......................................................................................................	45
Management menu ............................................................................................................	47
Initial Setup menu ..............................................................................................................	48
Networking and I/O ...........................................................................................	48
Fax Setup ..........................................................................................................	56
E-mail Setup ......................................................................................................	59
Send Setup menu .............................................................................................	59
Device Behavior menu .......................................................................................................	60
Print Quality menu .............................................................................................................	64
Troubleshooting menu .......................................................................................................	67
Resets menu ......................................................................................................................	76
Service menu .....................................................................................................................	76
Use information pages .......................................................................................................	76
Configuring and verifying an IP address ............................................................................................	79
Identifying the TCP/IP address ..........................................................................................	79
Use automatic discovery ...................................................................................	79
Set up a dynamic host configuration protocol (DHCP) ......................................	79
Verifying the TCP/IP configuration .....................................................................................	79
Changing an IP address ....................................................................................................	79
Change an IP address by using HP Web Jetadmin ..........................................	79
Change an IP address by using the embedded Web server .............................	80
Change an IP address by using the control panel ............................................	80
Remote firmware updates .................................................................................................................	81
Introduction ........................................................................................................................	81

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Print the configuration page .............................................................................	81
Printing a menu map ........................................................................	82
Downloading the new firmware from the HP Web site ......................................	82
Downloading the new firmware to the device ....................................................	82
Troubleshooting firmware updates ....................................................................	82
Remote firmware update by using FTP through a browser ...............................	84
Remote firmware update by using FTP on a direct network connection ...........	85
Remote firmware update through a local MS Windows port ............................	86
Windows NT 4.0, Windows 2000, Windows XP, Windows XP or
Windows 2003 ..................................................................................	86
Remote firmware update through a USB port ...................................................	87
Remote firmware update through an MS Windows network ............................	88
Remote firmware update for UNIX systems .....................................................	89
Remote firmware update by using the LPR command .....................................	89
Remote firmware update through HP Web Jetadmin .......................................	90
Manage supplies ................................................................................................................................	92
Supplies life .......................................................................................................................	92
Approximate print-cartridge replacement intervals ............................................................	92
Manage the print cartridge .................................................................................................	92
Print-cartridge storage .......................................................................................	92
Use genuine HP print cartridges .......................................................................	92
HP policy on non-HP print cartridges ................................................................	92
Print-cartridge authentication ............................................................................	93
HP fraud hotline and Web site ..........................................................................	93
Replace supplies and parts ................................................................................................................	94
Supply replacement guidelines ..........................................................................................	94
Change the print cartridge .................................................................................................	94
Perform preventive maintenance .......................................................................................	97
Preventive maintenance for the print engine ....................................................	97
The ADF maintenance kit ..................................................................................	97
Clean the device .................................................................................................................................	98
Clean the exterior ..............................................................................................................	98
Clean the scanner glass ....................................................................................................	98
Clean the scanner lid backing ............................................................................................	99
Clean the ADF .................................................................................................................	100
Clean the print engine paper path ...................................................................................	100
4 Theory of operation
MFP system overview ......................................................................................................................	104
Print engine ......................................................................................................................................	106
Basic sequence of operation ...........................................................................................	106
Power-on sequence .........................................................................................................	107
Engine control system .....................................................................................................	107
DC controller PCA ...........................................................................................	108
High-voltage power-supply PCA .....................................................................	109
Low-voltage power-supply PCA ......................................................................	112
Video interface control ....................................................................................	113
Laser/scanner system ......................................................................................................	113
Image-formation system ..................................................................................................	114
Electrostatic latent-image formation block ......................................................	116

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Step 1: primary charging ................................................................	116
Step 2: laser-beam exposure .........................................................	116
Development block ..........................................................................................	117
Step 3: developing ..........................................................................	117
Transfer block .................................................................................................	118
Step 4: image transfer ....................................................................	118
Step 5: separation from the drum ...................................................	118
Fuser block ......................................................................................................	119
Step 6: fusing ..................................................................................	119
Drum-cleaning block .......................................................................................	119
Step 7: drum cleaning .....................................................................	119
Print cartridge ..................................................................................................	119
Memory tag .....................................................................................................	120
Pickup-and-feed-system ..................................................................................................	121
Cassette paper size and presence detection ..................................................	124
Upper and lower cassette pickup mechanism .................................................	125
Multiple-feed prevention mechanism ..............................................................	127
Tray 1 (multipurpose tray) pickup mechanism ................................................	128
Skew-correction mechanism (registration) ......................................................	129
Fuser/delivery block ........................................................................................	130
Loop control ....................................................................................................	130
Jam detection ..................................................................................................	131
Duplexing unit ...................................................................................................................................	133
Duplexing reverse/feed operation ....................................................................................	134
Duplexing feed operation .................................................................................................	135
Duplexing horizontal registration function ........................................................................	136
Duplexing unit jam detection ............................................................................................	137
1 x 500-sheet and 3 x 500-sheet high-capacity input feeder ............................................................	138
Pickup/feed operation ......................................................................................................	140
HCI pickup mechanism ....................................................................................................	142
Lift-up operation ...............................................................................................................	143
Multiple-feed prevention mechanism ...............................................................................	145
HCI jam detection ............................................................................................................	147
Scanner component .........................................................................................................................	148
ADF ..................................................................................................................................................	150
Input tray ..........................................................................................................................	150
ADF simplex printing operation sequence .......................................................................	150
ADF duplex printing operation sequence .........................................................................	151
Multifeed operation ..........................................................................................................	152
End of a scan job operation .............................................................................................	153
Paper pick and separation operation ...............................................................................	153
Deskew ............................................................................................................................	154
Stapler/stacker component ...............................................................................................................	155
Overview ..........................................................................................................................	155
Basic operation ................................................................................................................	156
Control system .................................................................................................................	157
Feed/stack system ...........................................................................................................	160
Staple system ..................................................................................................................	175
5 Removal and replacement

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Removal and replacement strategy ..................................................................................................	178
Introduction ......................................................................................................................	178
Required tools ..................................................................................................................	179
Types of screws ...............................................................................................................	179
Service approach .............................................................................................................	180
Before performing service ................................................................................................	180
After performing service ...................................................................................................	180
Parts removal order .........................................................................................................	181
User-replaceable parts .....................................................................................................................	182
Print cartridge ..................................................................................................................	183
ADF separation pad and pickup and feed roller assemblies (removal and
replacement) ....................................................................................................................	184
Transfer roller ..................................................................................................................	187
Tray 1 pickup roller (multipurpose paper pickup roller) ....................................................	188
Tray 1 separation pad assembly (multipurpose pad assembly) ......................................	189
Tray 2 and Tray 3 pickup rollers (paper pickup roller assembly) .....................................	191
Tray 2 and Tray 3 separation pad assembly (separation block assembly) ......................	193
Tray 4, Tray 5, and Tray 6 pickup and feed rollers (paper feed roller assembly) ............	194
Fuser ................................................................................................................................	195
Duplexer ..........................................................................................................................	198
Formatter cover and cage ................................................................................................	199
Hard drive ........................................................................................................................	201
Fax PCA ..........................................................................................................................	202
ADF ..................................................................................................................................................	203
ADF assembly .................................................................................................................	204
ADF input tray sensors ....................................................................................................	206
Separation floor assembly ...............................................................................................	208
Diverter ............................................................................................................................	210
Jam cover ........................................................................................................................	211
Hinge assemblies ............................................................................................................	213
Float assembly .................................................................................................................	214
White backing ..................................................................................................................	217
Front end cover (cap) ......................................................................................................	219
Rear end cover (cap) .......................................................................................................	221
ADF PCA and wire harness .............................................................................................	224
Input tray ..........................................................................................................................	226
Scanner ............................................................................................................................................	227
Control panel ...................................................................................................................	228
Scanner controller board (SCB) and cover ......................................................................	230
Scanner assembly ...........................................................................................................	232
Glass assembly and top cover .........................................................................................	235
Optic assembly ................................................................................................................	240
To reinstall the drive belt and optic assembly .................................................	246
Page sensors ...................................................................................................................	249
Transmission assemblies and slide rail ...........................................................................	250
Stapler/stacker (HP LaserJet M5035xs only) ...................................................................................	253
Stapler/stacker assembly .................................................................................................	254
Stapler PCA .....................................................................................................................	257
Rear cover .......................................................................................................................	258
Left door ...........................................................................................................................	259

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Output bin ........................................................................................................................	260
Duplex cover ....................................................................................................................	261
Left cover .........................................................................................................................	262
Right and left rear covers .................................................................................................	264
Front door and stapler unit cover .....................................................................................	266
Output bin stay (support arm) ..........................................................................................	270
Rear inner cover ..............................................................................................................	271
Stack cover ......................................................................................................................	272
Stapler unit .......................................................................................................................	273
Paper feed assembly (stapler) ........................................................................................	275
Alignment and jogger guide assembly .............................................................................	276
Install the alignment and jogger guide assembly ............................................	280
Jogger guide unit .............................................................................................................	283
Front door interlock switch ...............................................................................................	286
Print engine (base unit) ....................................................................................................................	288
Formatter cover ...............................................................................................................	290
Face-down cover .............................................................................................................	291
Left door ...........................................................................................................................	292
Left upper cover ...............................................................................................................	293
Rear cover .......................................................................................................................	295
Front cover .......................................................................................................................	296
Face-down side cover ......................................................................................................	300
Top inner cover ................................................................................................................	302
Front inner cover ..............................................................................................................	304
Right door ........................................................................................................................	306
Lower left cover ...............................................................................................................	308
Left rear cover ..................................................................................................................	311
Top cover .........................................................................................................................	312
Right rear inner cover ......................................................................................................	313
Right rear cover ...............................................................................................................	315
Left rear inner cover .........................................................................................................	316
Print cartridge door ..........................................................................................................	318
Registration assembly .....................................................................................................	325
Fuser pressure release assembly ....................................................................................	328
Fuser ................................................................................................................................	329
Paper delivery assembly ..................................................................................................	330
Paper feed assembly (base unit) .....................................................................................	332
Reinstall the paper feed assembly ..................................................................	333
Fuser fan ..........................................................................................................................	338
Fuser motor .....................................................................................................................	339
Laser/scanner ..................................................................................................................	340
Low-voltage power supply assembly ...............................................................................	342
Interconnect PCA assembly ............................................................................................	345
High-voltage power supply ..............................................................................................	347
Lifter drive assembly ........................................................................................................	354
DC controller PCA ...........................................................................................................	357
Upper cassette pickup assembly .....................................................................................	359
Lower cassette drive assembly ........................................................................................	362
Main motor .......................................................................................................................	363
Lower cassette pickup assembly .....................................................................................	368

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High capacity input feeder ................................................................................................................	371
Front door (single tray unit only) ......................................................................................	372
Right door ........................................................................................................................	373
Back cover .......................................................................................................................	376
Motor(s) and PCA(s) ........................................................................................................	377
Paper pickup assemblies .................................................................................................	378
Right side tray rail(s) ........................................................................................................	381
Left side tray rail(s) ..........................................................................................................	382
Lifter driver assembly .......................................................................................................	384
6 Troubleshooting
Introduction .......................................................................................................................................	389
Basic troubleshooting checklist ........................................................................................................	390
Factors that affect device performance ...........................................................................	390
Troubleshooting flowchart ................................................................................................................	391
Power-on self diagnostic tests .........................................................................................	391
Step 1: Does READY appear on the control-panel display? ...........................................	391
Step 2: Can you print a configuration page? ...................................................................	392
Step 3: Does the device copy? .......................................................................................	393
Step 4: Does the job print as expected? ..........................................................................	393
Step 5: Does the printer select media from the correct trays? .........................................	394
Control-panel message types ...........................................................................................................	396
Control-panel messages ..................................................................................................................	397
Replacement-parts configuration .....................................................................................................	442
Formatter and dc controller ..............................................................................................	442
Formatter (new) ...............................................................................................................	442
DC controller (new or previously installed in another printer) ..........................................	442
Guidelines for using paper ...............................................................................................................	443
Supported media weights and sizes .................................................................................................	444
Printing internal information pages ...................................................................................................	447
Jam locations ...................................................................................................................................	448
General paper-path and jam troubleshooting ...................................................................................	449
Paper-path checklist ........................................................................................................	449
Jams in Tray 1 .................................................................................................................	450
Jams in Tray 2, or Tray 3 ................................................................................................	450
Jams in the optional high capacity input feeder ...............................................................	451
Common causes of repeating jams ..................................................................................................	452
Solve general repeated jams ............................................................................................................	457
Jam recovery ....................................................................................................................................	458
Clear jams ........................................................................................................................................	459
Clear jams from the automatic document feeder (ADF) ..................................................	459
Clear jams from the stapler/stacker .................................................................................	461
Clear jams from the output path ......................................................................................	463
Clear jams from the optional duplexer .............................................................................	464
Clear jams from the print-cartridge area ..........................................................................	466
Clear jams from the input-tray areas ...............................................................................	468
Clear jams from the Tray 1 input area .............................................................	468
Clear jams from the Tray 2 and Tray 3 input area ..........................................	468
Clear jams from the Tray 4/5/6 input areas .....................................................	470
Clear staple jams ..............................................................................................................................	472

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Solving image-quality problems .......................................................................................................	475
Solve print-quality problems ............................................................................................	475
Solve copy-quality problems ...........................................................................	475
Print-quality problems associated with media .................................................	475
Print-quality problems associated with the environment .................................	476
Print-quality problems associated with jams ...................................................	476
Image defect examples ...................................................................................	476
Light print (partial page) .................................................................................	478
Light print (entire page) ..................................................................................	479
Specks ...........................................................................................................	480
Dropouts .........................................................................................................	481
Lines ...............................................................................................................	483
Gray background ............................................................................................	483
Toner smear ...................................................................................................	485
Loose toner ....................................................................................................	485
Repeating defects ..........................................................................................	487
Repeating image .............................................................................................	487
Misformed characters .....................................................................................	488
Page skew .......................................................................................................	489
Curl or wave ...................................................................................................	490
Wrinkles or creases ........................................................................................	490
White lines ......................................................................................................	491
Tire tracks ......................................................................................................	491
White spots on black ......................................................................................	492
Scattered lines ...............................................................................................	492
Blurred print ....................................................................................................	493
Random image repetition ...............................................................................	493
Solve copy-quality problems ............................................................................................	494
ADF image-quality problems ...........................................................................	494
Blank page (ADF) ...........................................................................	494
Page skew (ADF) ...........................................................................	495
Horizontal lines (ADF) ....................................................................	495
Image shifted (ADF) .......................................................................	495
Unexpected Image (ADF) ...............................................................	496
Flatbed glass image-quality problems .............................................................	496
Poor uniformity (flatbed) .................................................................	496
Poor uniformity gradual (flatbed) ....................................................	496
Lamp inverter failure (flatbed) .........................................................	496
Streaks on page (flatbed) ...............................................................	497
Unexpected results (flatbed) ...........................................................	497
Solve copy problems .......................................................................................................	497
Media-handling problems ................................................................................	497
Performance problems ....................................................................................	499
Troubleshooting communication interfaces ......................................................................................	500
Check communications ....................................................................................................	500
Troubleshooting the EIO .................................................................................	500
Jetdirect page .................................................................................	500
Boot key sequences .........................................................................................................................	502
Low-level boot key sequences .........................................................................................	503
Mid-level boot key sequences .........................................................................................	504

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High-level boot key sequences ........................................................................................	504
Control-panel boot sequence calibration .........................................................................	505
Engine test (formatter removed) ......................................................................................	505
Service menu ...................................................................................................................................	507
Accessing the service menu ............................................................................................	507
Service ID ........................................................................................................................	509
Restoring the service ID ..................................................................................	510
Convert the service ID to an actual date .........................................................	510
Troubleshooting menu ......................................................................................................................	511
Accessing the troubleshooting menu ...............................................................................	511
Calibrate the scanner .......................................................................................................	515
Use the control panel .......................................................................................................................	516
Control-panel layout .........................................................................................................	516
Home screen ...................................................................................................................	517
Buttons on the touchscreen .............................................................................................	518
Control-panel help system ...............................................................................................	518
Solve fax problems ...........................................................................................................................	519
Solve sending problems ..................................................................................................	519
Solve receiving problems .................................................................................................	520
Solve e-mail problems ......................................................................................................................	522
Validate the SMTP gateway address ...............................................................................	522
Validate the LDAP gateway address ...............................................................................	522
Diagrams ..........................................................................................................................................	523
ADF ..................................................................................................................................	523
Sensors (ADF) ................................................................................................	523
Wiring diagram (ADF) .....................................................................................	524
Scanner ...........................................................................................................................	525
Components (scanner) ....................................................................................	525
Wiring diagram (scanner) ................................................................................	526
Stapler/stacker .................................................................................................................	527
External panels and covers (stapler/stacker) ..................................................	527
Sensors (stapler/stacker) ................................................................................	528
PCA (stapler/stacker) ......................................................................................	529
Wiring diagram (stapler/stacker) .....................................................................	530
Engine (base unit) ............................................................................................................	531
Engine (base unit) ...........................................................................................	531
Interface connections (engine) ........................................................................	532
External panels and covers (engine) ...............................................................	533
Major components (engine) ............................................................................	535
Motors and fans (engine) ................................................................................	536
PCAs (engine) .................................................................................................	537
Sensors and switches (engine) .......................................................................	538
DC controller PCA connectors (engine) ..........................................................	539
DC controller input/output signals (engine) .....................................................	541
Wiring diagrams (engine) ................................................................................	546
Timing diagram (engine) .................................................................................	548
High capacity input feeder ...............................................................................................	549
External covers and panels (HCI) ...................................................................	549
Major components (HCI) .................................................................................	550
Motor(s) and PCA(s) (HCI) ..............................................................................	551

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Sensors (HCI) .................................................................................................	552
Wiring diagrams (HCI) .....................................................................................	553
Repetitive defect ruler ......................................................................................................	554
Interlocks and linkages ....................................................................................................	555
Print cartridge and MFP contacts ....................................................................................	563
Known issues ...................................................................................................................................	565
Control-panel ESD disruption ..........................................................................................	565
Clearing a jam from the right (print cartridge) side .........................................................	565
Loading Tray 2/3/4/5 with letter or A4 media ...................................................................	566
The stapler/stacker only staples letter and A4 media ......................................................	566
Formatter cage does not properly seat ............................................................................	566
RFU with a SCB firmware upgrade ..................................................................................	566
RFU with a DC controller firmware update ......................................................................	566
EIO device does not properly seat ...................................................................................	566
Print cartridge cannot be removed ...................................................................................	566
False left door open error message .................................................................................	567
Dark or flickering control-panel display ............................................................................	567
Fuser edge overheat slowdown .......................................................................................	567
7 Parts and diagrams
Parts .................................................................................................................................................	571
How to use the parts lists and diagrams ..........................................................................................	572
Types of screws ...............................................................................................................................	572
Related documentation and software ...............................................................................................	573
Accessories, supplies, and whole unit components .........................................................................	573
Automatic document feeder (whole unit) ..........................................................................................	582
Front end cover (ADF) ......................................................................................................................	584
Hinges (ADF) ....................................................................................................................................	586
Base assembly (ADF) ......................................................................................................................	588
Backbone assembly (ADF) ...............................................................................................................	590
Jam Cover (ADF) .............................................................................................................................	594
Pickup roller assembly (ADF) ...........................................................................................................	596
Separation pad assembly (ADF) ......................................................................................................	598
Separation floor assembly (ADF) .....................................................................................................	600
Scanner assembly base ...................................................................................................................	602
Carriage assembly (scanner; optical assembly) ...............................................................................	604
Scanner top assembly ......................................................................................................................	606
Scanner controller board (SCB) assembly .......................................................................................	608
Scanner lid sensor assembly ...........................................................................................................	610
Scanner transmission drive assembly ..............................................................................................	612
Stapler/stacker assembly main body ................................................................................................	614
Paper feed assembly (stapler/stacker) .............................................................................................	618
Alignment and jogger assembly (stapler/stacker) ............................................................................	620
Stapler assembly (stapler/stacker) ...................................................................................................	624
Stapler/stacker PCA .........................................................................................................................	626
Print engine external covers and panels ..........................................................................................	628
Cartridge door assembly (print engine) ............................................................................................	632
Internal components (print engine 1 of 3) .........................................................................................	636
Internal components (print engine; 2 of 3) ........................................................................................	640
Internal components (print engine; 3 of 3) ........................................................................................	644

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Paper delivery assembly (print engine) ............................................................................................	648
Lifter drive assembly (print engine) ..................................................................................................	652
Fuser drive assembly (print engine) .................................................................................................	654
Lower drive assembly (print engine) ................................................................................................	656
Upper cassette (print engine) ...........................................................................................................	658
Lower cassette (print engine) ...........................................................................................................	662
Upper cassette pickup assembly (print engine) ...............................................................................	666
Lower cassette pickup assembly (print engine) ...............................................................................	670
Registration assembly (print engine) ................................................................................................	674
Paper feed assembly (print engine) .................................................................................................	676
PCA assemblies (print engine) .........................................................................................................	678
Fuser (print engine) ..........................................................................................................................	680
Fuser pressure release assembly (print engine) ..............................................................................	684
High capacity input (HCI) 1X500 feeder main body .........................................................................	686
High capacity input (HCI) 3X500 feeder main body .........................................................................	690
Lifter drive assembly (HCI) ...............................................................................................................	694
Cassette (HCI) ..................................................................................................................................	696
Paper pickup assembly (HCI) ...........................................................................................................	700
HCI PCA assemblies ........................................................................................................................	704
Alphabetical parts list .......................................................................................................................	706
Numerical parts list ...........................................................................................................................	764
Appendix A Specifications
Physical specifications .....................................................................................................................	824
Electrical specifications ....................................................................................................................	825
Acoustic emissions ...........................................................................................................................	826
Operating environment .....................................................................................................................	826
Appendix B Service and support
Hewlett-Packard limited warranty statement ....................................................................................	827
Customer self repair warranty service ..............................................................................................	828
Print cartridge limited warranty statement ........................................................................................	829
HP Customer Care ...........................................................................................................................	830
Online Services ................................................................................................................	830
Telephone support ...........................................................................................................	830
Software utilities, drivers, and electronic information .......................................................	830
HP direct ordering for accessories or supplies ................................................................	830
HP service information .....................................................................................................	830
HP service agreements ...................................................................................................	830
HP Easy Printer Care software ........................................................................................	831
HP support and information for Macintosh computers .....................................................	831
HP maintenance agreements ...........................................................................................................	832
On-site service agreements .............................................................................................	832
Next-day on-site service ..................................................................................	832
Weekly (volume) on-site service .....................................................................	832
Repacking the device ......................................................................................................	832
Extended warranty ...........................................................................................................	833
Appendix C Regulatory information

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FCC regulations ...............................................................................................................................	836
Environmental product stewardship program ...................................................................................	837
Protecting the environment ..............................................................................................	837
Ozone production ............................................................................................................	837
Power consumption .........................................................................................................	837
Toner consumption ..........................................................................................................	837
Paper use ........................................................................................................................	837
Plastics ............................................................................................................................	837
HP LaserJet print supplies ...............................................................................................	838
HP print supplies returns and recycling program information ..........................................	838
Paper ...............................................................................................................................	838
Material restrictions ..........................................................................................................	839
Disposal of waste equipment by users in private households in the European
Union ...............................................................................................................................	839
Material Safety Data Sheet (MSDS) ................................................................................	840
For more information .......................................................................................................	840
Telecom statement ...........................................................................................................................	841
Declaration of conformity ..................................................................................................................	842
Safety statements .............................................................................................................................	843
Laser safety .....................................................................................................................	843
Canadian DOC regulations ..............................................................................................	843
VCCI statement (Japan) ..................................................................................................	843
EMI statement (Korea) .....................................................................................................	843
EMI statement (Taiwan) ...................................................................................................	843
Laser statement for Finland .............................................................................................	843
Index .................................................................................................................................................................	845

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List of tables

Table 3-1	Information menu .............................................................................................................................	36
Table 3-2 Default Options for Originals menu ..................................................................................................		38
Table 3-3	Image adjustment .............................................................................................................................	39
Table 3-4 Default Copy Options menu .............................................................................................................		40
Table 3-5 Fax Send menu ................................................................................................................................		41
Table 3-6 Fax Receive menu ...........................................................................................................................		41
Table 3-7 Default Print Options menu ..............................................................................................................		44
Table 3-8	Time/Scheduling menu ....................................................................................................................	45
Table 3-9	Management menu ..........................................................................................................................	47
Table 3-10 Networking and I/O ........................................................................................................................		48
Table 3-11	Jetdirect menus ..............................................................................................................................	48
Table 3-12 Fax Setup menu .............................................................................................................................		56
Table 3-13 E-mail Setup menu .........................................................................................................................		59
Table 3-14 Send Setup menu ..........................................................................................................................		59
Table 3-15 Device Behavior menu ...................................................................................................................		60
Table 3-16 Print Quality menu ..........................................................................................................................		64
Table 3-17	Troubleshooting menu ...................................................................................................................	67
Table 3-18 Print/stop test time values (simplex print jobs) ...............................................................................		73
Table 3-19 Print/stop test time values (duplex print jobs) ................................................................................		74
Table 3-20	Resets menu ..................................................................................................................................	76
Table 3-21 Troubleshooting a firmware update ..............................................................................................		83
Table 3-22 Troubleshooting a failed firmware update ......................................................................................		83
Table 3-23	Update messages ..........................................................................................................................	83
Table 4-1 DC controller connections ..............................................................................................................		104
Table 4-2 Scanner controller board (SCB) connections .................................................................................		105
Table 4-3 Sequence of operation (engine) .....................................................................................................		106
Table 4-4 Duplexing unit jam detection ..........................................................................................................		137
Table 4-5 HCI paper pickup/feed operation ...................................................................................................		140
Table 4-6 Motor control circuit ........................................................................................................................		160
Table 6-1 Control-panel LED cycles ...............................................................................................................		391
Table 6-2	Control-panel messages ................................................................................................................	397
Table 6-3 Tray 1 specifications ......................................................................................................................		444
Table 6-4 Tray 2 specifications ......................................................................................................................		444
Table 6-5 Tray 3 specifications ......................................................................................................................		444
Table 6-6 Optional trays 4, 5, and 6 specifications ........................................................................................		445
Table 6-7 Specifications for automatic 2-sided printing .................................................................................		445
Table 6-8 Specifications for automatic stapling and stacking ........................................................................		445
Table 6-9 Specifications for the automatic document feeder (ADF) ..............................................................		446
Table 6-10 Causes for jams in Tray 1 ............................................................................................................		450

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Table 6-11 Causes for jams in Tray 2, or Tray 3 ............................................................................................		450
Table 6-12 Causes for jams in the optional HCI feeder .................................................................................		451
Table 6-13 General jam causes .....................................................................................................................		452
Table 6-14	ADF jams .....................................................................................................................................	452
Table 6-15	Tray 1 jams ..................................................................................................................................	453
Table 6-16 Tray 2 and Tray 3 jams ................................................................................................................		453
Table 6-17 Transfer and feed jams ................................................................................................................		454
Table 6-18 Fuser and delivery jams ...............................................................................................................		454
Table 6-19 HCI feeder jams (Tray 4/5/6 jams) ...............................................................................................		454
Table 6-20	Duplexer jams ..............................................................................................................................	455
Table 6-21	Stapler/stacker jams .....................................................................................................................	455
Table 6-22 Image defect examples ................................................................................................................		476
Table 6-23 Image defect examples (ADF) .....................................................................................................		477
Table 6-24	Sensors (ADF) .............................................................................................................................	523
Table 6-25	Components (scanner) .................................................................................................................	525
Table 6-26 External covers and panels (stapler/stacker) ...............................................................................		527
Table 6-27	PCA (stapler/stacker) ...................................................................................................................	529
Table 6-28 Engine (base unit) ........................................................................................................................		531
Table 6-29 Interface connections (engine) .....................................................................................................		532
Table 6-30 External panels and covers (engine) ...........................................................................................		533
Table 6-31 Major components (engine) .........................................................................................................		535
Table 6-32 Motors and fans (engine) .............................................................................................................		536
Table 6-33	PCAs (engine) ..............................................................................................................................	537
Table 6-34 Sensors and switches (engine) ....................................................................................................		538
Table 6-35 Sensors and switches (engine; duplexer) ....................................................................................		539
Table 6-36 Engine dc controller PCA (engine) ...............................................................................................		539
Table 6-37 External covers and panels (HCI) ................................................................................................		549
Table 6-38 Major components (HCI) ..............................................................................................................		550
Table 6-39 Motor(s) and PCA(s) (HCI) ...........................................................................................................		551
Table 6-40	Sensors (HCI) ..............................................................................................................................	552
Table 6-41 Interlocks and linkages ................................................................................................................		555
Table 7-1 Technical support Web sites ..........................................................................................................		573
Table 7-2 Accessories and supplies ...............................................................................................................		573
Table 7-3	ADF ................................................................................................................................................	583
Table 7-4 Front end cover (ADF) ...................................................................................................................		585
Table 7-5	Hinges ............................................................................................................................................	587
Table 7-6 Base assembly (ADF) ....................................................................................................................		589
Table 7-7 Backbone assembly (ADF) ............................................................................................................		591
Table 7-8 Jam cover (ADF) ............................................................................................................................		595
Table 7-9 Pickup roller assembly (ADF) .........................................................................................................		597
Table 7-10 Separation pad assembly (ADF) ..................................................................................................		599
Table 7-11 Separation floor assembly (ADF) .................................................................................................		601
Table 7-12 Scanner assembly base ...............................................................................................................		603
Table 7-13 Carriage assembly (scanner; optical assembly) ..........................................................................		605
Table 7-14 Scanner top assembly ..................................................................................................................		607
Table 7-15 Scanner controller board (SCB) assembly ...................................................................................		609
Table 7-16 Scanner lid sensor assembly .......................................................................................................		611
Table 7-17 Scanner transmission drive assembly ..........................................................................................		613
Table 7-18 Main body (stapler/stacker) ..........................................................................................................		615
Table 7-19 Paper feed assembly (stapler/stacker) ........................................................................................		619

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Table 7-20 Alignment and jogger assembly (stapler/stacker) ........................................................................		621
Table 7-21 Stapler assembly (stapler/stacker) ...............................................................................................		625
Table 7-22 Stapler/stacker PCA assembly .....................................................................................................		627
Table 7-23 External panels and covers (print engine) ...................................................................................		629
Table 7-24 Cartridge door assembly (print engine) ........................................................................................		633
Table 7-25 Internal components (1 of 3) (print engine) ..................................................................................		637
Table 7-26 Internal components (2 of 3) (print engine) ..................................................................................		641
Table 7-27 Internal components (3 of 3) (print engine) ..................................................................................		645
Table 7-28 Paper delivery assembly (print engine) ........................................................................................		649
Table 7-29 Lifter drive assembly (print engine) ..............................................................................................		653
Table 7-30 Fuser drive assembly (print engine) .............................................................................................		655
Table 7-31 Lower drive assembly (print engine) ............................................................................................		657
Table 7-32 Upper cassette (print engine) .......................................................................................................		659
Table 7-33 Lower cassette (print engine) .......................................................................................................		663
Table 7-34 Upper cassette pickup assembly (print engine) ...........................................................................		667
Table 7-35 Lower cassette pickup assembly (print engine) ...........................................................................		671
Table 7-36 Registration assembly (print engine) ...........................................................................................		675
Table 7-37 Paper feed assembly (print engine) .............................................................................................		677
Table 7-38	PCA assemblies ...........................................................................................................................	679
Table 7-39 Fuser (print engine) ......................................................................................................................		681
Table 7-40 Fuser pressure release assembly (print engine) ..........................................................................		685
Table 7-41 1X500 HCI main body ..................................................................................................................		687
Table 7-42 3X500 HCI main body ..................................................................................................................		691
Table 7-43 Lifter drive assembly (HCI) ...........................................................................................................		695
Table 7-44	Cassette (HCI) .............................................................................................................................	697
Table 7-45 Paper pickup assembly (HCI) ......................................................................................................		701
Table 7-46	PCA assemblies ...........................................................................................................................	705
Table 7-47 Alphabetical parts list ...................................................................................................................		706
Table 7-48 Numerical parts list .......................................................................................................................		764
Table A-1	Dimensions ....................................................................................................................................	824
Table A-2 Dimensions with all doors and trays fully opened ..........................................................................		824
Table A-3	Power requirements .......................................................................................................................	825
Table A-4 Power consumption (average, in watts) ........................................................................................		825
Table A-5 Sound power and pressure level, .................................................................................................. 826
Table A-6	Necessary conditions .....................................................................................................................	826

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List of figures

Figure 1-1 HP LaserJet M5025 MFP and HP LaserJet M5035 MFP		................................................................. 5
Figure 1-2 HP LaserJet M5035X MFP ...............................................................................................................		6
Figure 1-3 HP LaserJet M5035XS MFP .............................................................................................................		7
Figure 2-1 MFP deminsions (1 of 3) .................................................................................................................		18
Figure 2-2 MFP deminsions (2 of 3) .................................................................................................................		18
Figure 2-3 MFP deminsions (3 of 3) .................................................................................................................		19
Figure 2-4	USB connection ..............................................................................................................................	21
Figure 4-1 MFP system block diagram ...........................................................................................................		104
Figure 4-2 Device function block diagram .....................................................................................................		106
Figure 4-3 Engine control system ...................................................................................................................		107
Figure 4-4 DC controller PCA .........................................................................................................................		108
Figure 4-5 High-voltage power-supply PCA block diagram ...........................................................................		109
Figure 4-6	Fuser unit ......................................................................................................................................	110
Figure 4-7 Fuser control circuit .......................................................................................................................		111
Figure 4-8 Low-voltage power-supply PCA block diagram ............................................................................		112
Figure 4-9 Video interface control signal flow ................................................................................................		113
Figure 4-10	Laser/scanner system .................................................................................................................	114
Figure 4-11	Image-formation system ............................................................................................................	115
Figure 4-12	Image-formation process ...........................................................................................................	116
Figure 4-13	Primary charging .........................................................................................................................	116
Figure 4-14	Laser-beam exposure .................................................................................................................	117
Figure 4-15	Image transfer .............................................................................................................................	118
Figure 4-16 Separation from the drum ...........................................................................................................		118
Figure 4-17	Fusing ........................................................................................................................................	119
Figure 4-18 Print cartridge (placeholder for 2–4–8) .......................................................................................		120
Figure 4-19	Pickup-and-feed-system .............................................................................................................	122
Figure 4-20 Pickup/feed system blocks ..........................................................................................................		123
Figure 4-21 Paper size and cassette presence detection ..............................................................................		124
Figure 4-22 Upper and lower cassette pickup mechanism ............................................................................		125
Figure 4-23 Upper cassette lifting operation ..................................................................................................		126
Figure 4-24 Multiple feed prevention mechanism ..........................................................................................		127
Figure 4-25	Skew-correction mechanism .......................................................................................................	129
Figure 4-26 Loop control mechanism .............................................................................................................		130
Figure 4-27 Duplexing unit paper path ...........................................................................................................		133
Figure 4-28 Signal flow for the duplexing driver PCA ....................................................................................		133
Figure 4-29 Duplexing reverse/feed operation ...............................................................................................		134
Figure 4-30 Horizontal registration function ...................................................................................................		136
Figure 4-31 HCI paper path ............................................................................................................................		138
Figure 4-32 Signal flow of the HCI driver ......................................................................................................		139

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Figure 4-33 HCI paper pickup/feed operation ................................................................................................		140
Figure 4-34 HCI pickup mechanism ...............................................................................................................		142
Figure 4-35	Lift-up operation ..........................................................................................................................	144
Figure 4-36 Multiple-feed prevention mechanism ..........................................................................................		146
Figure 4-37	ADF operation .............................................................................................................................	150
Figure 4-38 Simplex scanning document path ...............................................................................................		151
Figure 4-39 Duplex scanning document path ................................................................................................		152
Figure 4-40 ADF paper pick and separation ..................................................................................................		154
Figure 4-41	Stapler/stacker ............................................................................................................................	155
Figure 4-42	Stapler/stacker operation ............................................................................................................	156
Figure 4-43 Power ON sequence ...................................................................................................................		157
Figure 4-44	Control system ............................................................................................................................	158
Figure 4-45 Staple stacker driver PCA ...........................................................................................................		159
Figure 4-46	Feed/stack system ......................................................................................................................	161
Figure 4-47 Staple mode (1 of 7) ...................................................................................................................		162
Figure 4-48 Staple mode (2 of 7) ...................................................................................................................		163
Figure 4-49 Staple mode (3 of 7) ...................................................................................................................		163
Figure 4-50 Staple mode (4 of 7) ...................................................................................................................		164
Figure 4-51 Staple mode (5 of 7) ...................................................................................................................		164
Figure 4-52 Staple mode (6 of 7) ...................................................................................................................		165
Figure 4-53 Staple mode (7 of 7) ...................................................................................................................		165
Figure 4-54 Stacking roller separation control ...............................................................................................		166
Figure 4-55 Stacking roller separation control process (1 of 2) .....................................................................		167
Figure 4-56 Stacking roller separation control process (2 of 2) .....................................................................		167
Figure 4-57 Stacking roller separation detection ............................................................................................		168
Figure 4-58 Paper pile alignment control .......................................................................................................		168
Figure 4-59 Paper pile alignment control process (1 of 2) .............................................................................		169
Figure 4-60 Paper pile alignment control process (2 of 2) .............................................................................		169
Figure 4-61	Jogger control .............................................................................................................................	170
Figure 4-62 Jogger control process (1 of 4) ...................................................................................................		170
Figure 4-63 Jogger control process (2 of 4) ...................................................................................................		170
Figure 4-64 Jogger control process (3 of 4) ...................................................................................................		171
Figure 4-65 Jogger control process (4 of 4) ...................................................................................................		171
Figure 4-66 Jogger position control ................................................................................................................		172
Figure 4-67	Stamping control .........................................................................................................................	173
Figure 4-68 Staple system operation .............................................................................................................		175
Figure 5-1	Screwdrivers .................................................................................................................................	179
Figure 5-2 Remove the print cartridge (1 of 2) ...............................................................................................		183
Figure 5-3 Remove the print cartridge (2 of 2) ...............................................................................................		183
Figure 5-4 Remove the ADF separation pad and pickup and feed roller assemblies (1 of 5) ........................		184
Figure 5-5 Remove the ADF separation pad and pickup and feed roller assemblies (2 of 5) ........................		184
Figure 5-6 Remove the ADF separation pad and pickup and feed roller assemblies (3 of 5) ........................		185
Figure 5-7 Remove the ADF separation pad and pickup and feed roller assemblies (4 of 5) ........................		185
Figure 5-8 Remove the ADF separation pad and pickup and feed roller assemblies (5 of 5) ........................		186
Figure 5-9 Remove the transfer roller (1 of 2) ................................................................................................		187
Figure 5-10 Remove the transfer roller (2 of 2) ..............................................................................................		187
Figure 5-11 Remove the Tray 1 pickup roller (1 of 2) .....................................................................................		188
Figure 5-12 Remove the Tray 1 pickup roller (2 of 2) .....................................................................................		188
Figure 5-13 Remove the Tray 1 separation pad assembly (1 of 3; front retainer shown) ..............................		189
Figure 5-14 Remove the Tray 1 separation pad assembly (2 of 3) ................................................................		189

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Figure 5-15 Remove the Tray 1 separation pad assembly (3 of 3) ................................................................	190
Figure 5-16 Remove the Tray 2 and Tray 3 pickup rollers (1 of 4) ................................................................	191
Figure 5-17 Remove the Tray 2 and Tray 3 pickup rollers (2 of 4) ................................................................	191
Figure 5-18 Remove the Tray 2 and Tray 3 pickup rollers (3 of 4) ................................................................	192
Figure 5-19 Remove the Tray 2 and Tray 3 pickup rollers (4 of 4) ................................................................	192
Figure 5-20 Remove the Tray 2 and Tray 3 separation pad assembly (1 of 2) ..............................................	193
Figure 5-21 Remove the Tray 2 and Tray 3 separation pad assembly (2 of 2) ..............................................	193
Figure 5-22 Remove the Tray 4, Tray 5, and Tray 6 pickup and feed rollers .................................................	194
Figure 5-23 Remove the fuser (1 of 6) ...........................................................................................................	195
Figure 5-24 Remove the fuser (2 of 6) ...........................................................................................................	195
Figure 5-25 Remove the fuser (3 of 6) ...........................................................................................................	196
Figure 5-26 Remove the fuser (4 of 6) ...........................................................................................................	196
Figure 5-27 Remove the fuser (5 of 6) ...........................................................................................................	197
Figure 5-28 Remove the fuser (6 of 6) ...........................................................................................................	197
Figure 5-29 Remove the duplexer ..................................................................................................................	198
Figure 5-30 Remove the formatter cover and cage (1 of 3) ...........................................................................	199
Figure 5-31 Remove the formatter cover and cage (2 of 3) ...........................................................................	199
Figure 5-32 Remove the formatter cover and cage (3 of 3) ...........................................................................	200
Figure 5-33 Reinstall the formatter cage ........................................................................................................	200
Figure 5-34 Remove the hard drive (1 of 2) ...................................................................................................	201
Figure 5-35 Remove the hard drive (2 of 2) ...................................................................................................	201
Figure 5-36 Remove the Fax PCA (1 of 2) .....................................................................................................	202
Figure 5-37 Remove the Fax PCA (2 of 2) .....................................................................................................	202
Figure 5-38 Remove the ADF (1 of 4) ............................................................................................................	204
Figure 5-39 Remove the ADF (2 of 4) ............................................................................................................	204
Figure 5-40 Remove the ADF (3 of 4) ............................................................................................................	205
Figure 5-41 Remove the ADF (4 of 4) ............................................................................................................	205
Figure 5-42 Remove the ADF sensors (1 of 2) ..............................................................................................	206
Figure 5-43 Remove the ADF sensors (2 of 2) ..............................................................................................	207
Figure 5-44 Remove the ADF separation floor assembly (1 of 4) ..................................................................	208
Figure 5-45 Remove the ADF separation floor assembly (2 of 4) ..................................................................	208
Figure 5-46 Remove the ADF separation floor assembly (3 of 4) ..................................................................	209
Figure 5-47 Remove the ADF separation floor assembly (4 of 4) ..................................................................	209
Figure 5-48 Remove the ADF diverter (1 of 2) ...............................................................................................	210
Figure 5-49 Remove the ADF diverter (2 of 2) ...............................................................................................	210
Figure 5-50 Remove the ADF jam cover (1 of 3) ...........................................................................................	211
Figure 5-51 Remove the ADF jam cover (2 of 3) ...........................................................................................	211
Figure 5-52 Remove the ADF jam cover (3 of 3) ...........................................................................................	212
Figure 5-53 Remove the ADF hinges .............................................................................................................	213
Figure 5-54 Remove the ADF float assembly (1 of 5) ....................................................................................	214
Figure 5-55 Remove the ADF float assembly (2 of 5) ....................................................................................	214
Figure 5-56 Remove the ADF float assembly (3 of 5) ....................................................................................	215
Figure 5-57 Remove the ADF float assembly (4 of 5) ....................................................................................	215
Figure 5-58 Remove the ADF float assembly (5 of 5) ....................................................................................	216
Figure 5-59 Remove the ADF white backing (1 of 4) .....................................................................................	217
Figure 5-60 Remove the ADF white backing (2 of 4) .....................................................................................	217
Figure 5-61 Remove the ADF white backing (3 of 4) .....................................................................................	218
Figure 5-62 Remove the ADF white backing (4 of 4) .....................................................................................	218
Figure 5-63 Remove the ADF front end cover (1 of 4) ...................................................................................	219
Figure 5-64 Remove the ADF front end cover (2 of 4) ...................................................................................	219

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Figure 5-65 Remove the ADF front end cover ( 3 of 4) ..................................................................................	220
Figure 5-66 Remove the ADF front end cover (4 of 4) ...................................................................................	220
Figure 5-67 Remove the ADF rear end cover (1 of 5) ....................................................................................	221
Figure 5-68 Remove the ADF rear end cover (2 of 5) ....................................................................................	221
Figure 5-69 Remove the ADF rear end cover (3 of 5) ....................................................................................	222
Figure 5-70 Remove the ADF rear end cover (4 of 5) ....................................................................................	222
Figure 5-71 Remove the ADF rear end cover (5 of 5) ....................................................................................	223
Figure 5-72 Reinstall the ADF rear end cover ................................................................................................	223
Figure 5-73 Remove the ADF PCA and wire harness (1 of 3) .......................................................................	224
Figure 5-74 Remove the ADF PCA and wire harness (2 of 3) .......................................................................	224
Figure 5-75 Remove the ADF PCA and wire harness (3 of 3) .......................................................................	225
Figure 5-76 Remove the ADF input tray (1 of 2) ............................................................................................	226
Figure 5-77 Remove the ADF input tray (2 of 2) ............................................................................................	226
Figure 5-78 Remove the control panel (1 of 3) ..............................................................................................	228
Figure 5-79 Remove the control panel (2 of 3) ..............................................................................................	228
Figure 5-80 Remove the control panel (3 of 3) ..............................................................................................	229
Figure 5-81 Remove the SCB (1 of 4) ............................................................................................................	230
Figure 5-82 Remove the SCB (2 of 4) ............................................................................................................	230
Figure 5-83 Remove the SCB (3 of 4) ............................................................................................................	231
Figure 5-84 Remove the SCB (4 of 4) ............................................................................................................	231
Figure 5-85 Remove the scanner (1 of 4) ......................................................................................................	232
Figure 5-86 Remove the scanner (2 of 4) ......................................................................................................	233
Figure 5-87 Remove the scanner (3 of 4) ......................................................................................................	233
Figure 5-88 Remove the scanner (4 of 4) ......................................................................................................	234
Figure 5-89 Remove the scanner glass assembly and top cover (1 of 7) ......................................................	235
Figure 5-90 Remove the scanner glass assembly and top cover (2 of 7) ......................................................	236
Figure 5-91 Remove the scanner glass assembly and top cover (4 of 7) ......................................................	236
Figure 5-92 Remove the scanner glass assembly and top cover (3 of 7) ......................................................	237
Figure 5-93 Remove the scanner glass assembly and top cover (5 of 7) ......................................................	237
Figure 5-94 Remove the scanner glass assembly and top cover (6 of 7) ......................................................	238
Figure 5-95 Remove the scanner glass assembly and top cover (7 of 7) ......................................................	239
Figure 5-96 Remove the scanner optic assembly (1 of 13) ...........................................................................	240
Figure 5-97 Remove the scanner optic assembly (2 of 13) ...........................................................................	240
Figure 5-98 Remove the scanner optic assembly (3 of 13) ...........................................................................	241
Figure 5-99 Remove the scanner optic assembly (4 of 13) ...........................................................................	241
Figure 5-100 Remove the scanner optic assembly (5 of 13) .........................................................................	242
Figure 5-101 Remove the scanner optic assembly (6 of 13) .........................................................................	242
Figure 5-102 Remove the scanner optic assembly (7 of 13) .........................................................................	243
Figure 5-103 Remove the scanner optic assembly (8 of 13) .........................................................................	243
Figure 5-104 Remove the scanner optic assembly (9 of 13) .........................................................................	244
Figure 5-105 Remove the scanner optic assembly (10 of 13) .......................................................................	244
Figure 5-106 Remove the scanner optic assembly (11 of 13) .......................................................................	245
Figure 5-107 Remove the scanner optic assembly (12 of 13) .......................................................................	245
Figure 5-108 Remove the scanner optic assembly (13 of 13) .......................................................................	246
Figure 5-109 Reinstall the optic drive belt (1 of 5) .........................................................................................	246
Figure 5-110 Reinstall the optic drive belt (2 of 5) .........................................................................................	247
Figure 5-111 Reinstall the optic drive belt (3 of 5) .........................................................................................	247
Figure 5-112 Reinstall the optic drive belt (4 of 5) .........................................................................................	248
Figure 5-113 Reinstall the optic drive belt (5 of 5) .........................................................................................	248
Figure 5-114 Remove the scanner page sensors ..........................................................................................	249

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Figure 5-115 Remove the scanner transmission assemblies and slide rail (1 of 5) .......................................	250
Figure 5-116 Remove the scanner transmission assemblies and slide rail (2 of 5) .......................................	251
Figure 5-117 Remove the scanner transmission assemblies and slide rail (3 of 5) .......................................	251
Figure 5-118 Remove the scanner transmission assemblies and slide rail (4 of 5) .......................................	252
Figure 5-119 Remove the scanner transmission assemblies and slide rail (5 of 5) .......................................	252
Figure 5-120 Remove the stapler assembly (1 of 5) ......................................................................................	254
Figure 5-121 Remove the stapler assembly (2 of 5) ......................................................................................	254
Figure 5-122 Remove the stapler assembly (3 of 5) ......................................................................................	255
Figure 5-123 Remove the stapler assembly (4 of 5) ......................................................................................	255
Figure 5-124 Remove the stapler assembly (5 of 5) ......................................................................................	256
Figure 5-125 Remove the stapler PCA (1 of 2) ..............................................................................................	257
Figure 5-126 Remove the stapler PCA (2 of 2) ..............................................................................................	257
Figure 5-127 Remove the stapler rear cover ..................................................................................................	258
Figure 5-128 Remove the stapler left door .....................................................................................................	259
Figure 5-129 Remove the stapler output bin (1 of 2) .....................................................................................	260
Figure 5-130 Remove the stapler output bin (2 of 2) .....................................................................................	260
Figure 5-131 Remove the duplex cover .........................................................................................................	261
Figure 5-132 Install the duplex cover .............................................................................................................	261
Figure 5-133 Remove the stapler left cover (2 of 3) .......................................................................................	262
Figure 5-134 Remove the stapler left cover (1 of 3) .......................................................................................	262
Figure 5-135 Remove the stapler left cover (3 of 3) .......................................................................................	263
Figure 5-136 Remove the stapler right and left rear covers (1 of 4) ..............................................................	264
Figure 5-137 Remove the stapler right and left rear covers (2 of 4) ..............................................................	264
Figure 5-138 Remove the stapler right and left rear covers (3 of 4) ..............................................................	265
Figure 5-139 Remove the stapler right and left rear covers (4 of 4) ..............................................................	265
Figure 5-140 Remove the stapler front door and stapler unit cover (1 of 7) ..................................................	266
Figure 5-141 Remove the stapler front door and stapler unit cover (2 of 7) ..................................................	266
Figure 5-142 Remove the stapler front door and stapler unit cover (3 of 7) ..................................................	267
Figure 5-143 Remove the stapler front door and stapler unit cover (4 of 7) ..................................................	267
Figure 5-144 Remove the stapler front door and stapler unit cover (5 of 7) ..................................................	268
Figure 5-145 Remove the stapler front door and stapler unit cover (6 of 7) ..................................................	268
Figure 5-146 Remove the stapler front door and stapler unit cover (7 of 7) ..................................................	269
Figure 5-147 Remove the stapler output bin stay (support arm) ....................................................................	270
Figure 5-148 Remove the stapler rear inner cover ........................................................................................	271
Figure 5-149 Remove the stapler stack cover ................................................................................................	272
Figure 5-150 Remove the stapler unit (1 of 2) ...............................................................................................	273
Figure 5-151 Remove the stapler unit (2 of 2) ...............................................................................................	273
Figure 5-152 Reinstall the stapler unit ...........................................................................................................	274
Figure 5-153 Remove the stapler paper feed assembly (1 of 3) ....................................................................	275
Figure 5-154 Remove the stapler paper feed assembly (2 of 3) ....................................................................	276
Figure 5-155 Remove the stapler paper feed assembly (3 of 3) ....................................................................	276
Figure 5-156 Remove the stapler alignment and jogger guide assembly (1 of 6) ..........................................	277
Figure 5-157 Remove the stapler alignment and jogger guide assembly (2 of 6) ..........................................	278
Figure 5-158 Remove the stapler alignment and jogger guide assembly (3 of 6) ..........................................	278
Figure 5-159 Remove the stapler alignment and jogger guide assembly (4 of 6) ..........................................	279
Figure 5-160 Remove the stapler alignment and jogger guide assembly (5 of 6) ..........................................	279
Figure 5-161 Remove the stapler alignment and jogger guide assembly (6 of 6) ..........................................	280
Figure 5-162 Install the stapler alignment and jogger guide assembly (1 of 5) ..............................................	280
Figure 5-163 Install the stapler alignment and jogger guide assembly (2 of 5) ..............................................	281
Figure 5-164 Install the stapler alignment and jogger guide assembly (3 of 5) ..............................................	281

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Figure 5-165 Install the stapler alignment and jogger guide assembly (4 of 5) ..............................................	282
Figure 5-166 Install the stapler alignment and jogger guide assembly (5 of 5) ..............................................	282
Figure 5-167 Remove the jogger guide unit (1 of 3) ......................................................................................	283
Figure 5-168 Remove the jogger guide unit (2 of 3) ......................................................................................	284
Figure 5-169 Remove the jogger guide unit (3 of 3) ......................................................................................	284
Figure 5-170 Install the jogger guide unit (1 of 2) ..........................................................................................	285
Figure 5-171 Install the jogger guide unit (2 of 2) ..........................................................................................	285
Figure 5-172 Remove the front door interlock switch (1 of 3) ........................................................................	286
Figure 5-173 Remove the front door interlock switch (2 of 3) ........................................................................	287
Figure 5-174 Remove the front door interlock switch (3 of 3) ........................................................................	287
Figure 5-175 Remove the base unit formatter cover ......................................................................................	290
Figure 5-176 Remove the base unit face-down cover (1 of 2) .......................................................................	291
Figure 5-177 Remove the base unit face-down cover (2 of 2) .......................................................................	291
Figure 5-178 Remove the base unit left door (1 of 2) ....................................................................................	292
Figure 5-179 Remove the base unit left door (2 of 2) ....................................................................................	292
Figure 5-180 Remove the base unit left upper cover (1 of 3) .........................................................................	293
Figure 5-181 Remove the base unit left upper cover (2 of 3) .........................................................................	293
Figure 5-182 Remove the base unit left upper cover (3 of 3) .........................................................................	294
Figure 5-183 Remove the base unit rear cover (1 of 2) .................................................................................	295
Figure 5-184 Remove the base unit rear cover (2 of 2) .................................................................................	295
Figure 5-185 Remove the base unit front cover (1 of 7) ................................................................................	296
Figure 5-186 Remove the base unit front cover (2 of 7) ................................................................................	296
Figure 5-187 Remove the base unit front cover (3 of 7) ................................................................................	297
Figure 5-188 Remove the base unit front cover (4 of 7) ................................................................................	297
Figure 5-189 Remove the base unit front cover (5 of 7) ................................................................................	298
Figure 5-190 Remove the base unit front cover (6 of 7) ................................................................................	298
Figure 5-191 Remove the base unit front cover (7 of 7) ................................................................................	299
Figure 5-192 Remove the base unit face-down side cover (1 of 2) ...............................................................	300
Figure 5-193 Remove the base unit face-down side cover (2 of 2) ...............................................................	301
Figure 5-194 Remove the base unit top inner cover (1 of 2) ..........................................................................	302
Figure 5-195 Remove the base unit top inner cover (2 of 2) ..........................................................................	303
Figure 5-196 Remove the base unit front inner cover (1 of 2) .......................................................................	304
Figure 5-197 Remove the base unit front inner cover (2 of 2) .......................................................................	305
Figure 5-198 Remove the base unit right door (1 of 2) ..................................................................................	306
Figure 5-199 Remove the base unit right door (2 of 2) ..................................................................................	307
Figure 5-200 Install the base unit right door ...................................................................................................	307
Figure 5-201 Identify the lower left cover locking tabs ...................................................................................	308
Figure 5-202 Remove the base unit lower left cover (1 of 4) .........................................................................	309
Figure 5-203 Remove the base unit lower left cover (2 of 4) .........................................................................	309
Figure 5-204 Remove the base unit lower left cover (3 of 4) .........................................................................	310
Figure 5-205 Remove the base unit lower left cover (4 of 4) .........................................................................	310
Figure 5-206 Remove the base unit left rear cover (1 of 2) ...........................................................................	311
Figure 5-207 Remove the base unit left rear cover (2 of 2) ...........................................................................	311
Figure 5-208 Remove the base unit top cover ...............................................................................................	312
Figure 5-209 Remove the right rear inner cover (1 of 2) ................................................................................	313
Figure 5-210 Remove the right rear inner cover (2 of 2) ................................................................................	314
Figure 5-211 Remove the right rear cover .....................................................................................................	315
Figure 5-212 Remove the left rear inner cover (1 of 3) ..................................................................................	316
Figure 5-213 Remove the left rear inner cover (2 of 3) ..................................................................................	317
Figure 5-214 Remove the left rear inner cover (3 of 3) ..................................................................................	317

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Figure 5-215 Remove the print cartridge door (1 of 12) .................................................................................	318
Figure 5-216 Remove the print cartridge door (2 of 12) .................................................................................	319
Figure 5-217 Remove the print cartridge door (3 of 12) .................................................................................	319
Figure 5-218 Remove the print cartridge door (4 of 12) .................................................................................	320
Figure 5-219 Remove the print cartridge door (5 of 12) .................................................................................	320
Figure 5-220 Remove the print cartridge door (6 of 12) .................................................................................	321
Figure 5-221 Remove the print cartridge door (7 of 12) .................................................................................	321
Figure 5-222 Remove the print cartridge door (8 of 12) .................................................................................	322
Figure 5-223 Remove the print cartridge door (9 of 12) .................................................................................	322
Figure 5-224 Remove the print cartridge door (10 of 12) ...............................................................................	323
Figure 5-225 Remove the print cartridge door (11 of 12) ...............................................................................	323
Figure 5-226 Remove the print cartridge door (12 of 12) ...............................................................................	324
Figure 5-227 Remove the registration assembly (1 of 5) ...............................................................................	325
Figure 5-228 Remove the registration assembly (2 of 5) ...............................................................................	325
Figure 5-229 Remove the registration assembly (3 of 5) ...............................................................................	326
Figure 5-230 Remove the registration assembly (4 of 5) ...............................................................................	326
Figure 5-231 Remove the fuser registration assembly (5 of 5) ......................................................................	327
Figure 5-232 Remove the fuser pressure release assembly .........................................................................	328
Figure 5-233 Remove the fuser ......................................................................................................................	329
Figure 5-234 Remove the paper delivery assembly (1 of 2) ..........................................................................	330
Figure 5-235 Remove the paper delivery assembly (2 of 2) ..........................................................................	331
Figure 5-236 Remove the paper feed assembly (1 of 3) ................................................................................	332
Figure 5-237 Remove the paper feed assembly (2 of 3) ................................................................................	332
Figure 5-238 Remove the paper feed assembly (3 of 3) ................................................................................	333
Figure 5-239 Reinstall the paper feed assembly (1 of 8) ...............................................................................	333
Figure 5-240 Reinstall the paper feed assembly (2 of 8) ...............................................................................	334
Figure 5-241 Reinstall the paper feed assembly (3 of 8) ...............................................................................	335
Figure 5-242 Reinstall the paper feed assembly (4 of 8) ...............................................................................	335
Figure 5-243 Reinstall the paper feed assembly (5 of 8) ...............................................................................	336
Figure 5-244 Reinstall the paper feed assembly (6 of 8) ...............................................................................	336
Figure 5-245 Reinstall the paper feed assembly (7 of 8) ...............................................................................	337
Figure 5-246 Reinstall the paper feed assembly (8 of 8) ...............................................................................	337
Figure 5-247 Remove the fuser fan ................................................................................................................	338
Figure 5-248 Remove the fuser motor ...........................................................................................................	339
Figure 5-249 Remove the laser/scanner (1 of 3) ...........................................................................................	340
Figure 5-250 Remove the laser/scanner (2 of 3) ...........................................................................................	341
Figure 5-251 Remove the laser/scanner (3 of 3) ...........................................................................................	341
Figure 5-252 Remove the low-voltage power supply assembly (1 of 4) ........................................................	342
Figure 5-253 Remove the low-voltage power supply assembly (2 of 4) ........................................................	343
Figure 5-254 Remove the low-voltage power supply assembly (3 of 4) ........................................................	343
Figure 5-255 Remove the low-voltage power supply assembly (4 of 4) ........................................................	344
Figure 5-256 Remove the interconnect PCA (1 of 3) .....................................................................................	345
Figure 5-257 Remove the interconnect PCA (2 of 3) .....................................................................................	346
Figure 5-258 Remove the interconnect PCA (3 of 3) .....................................................................................	346
Figure 5-259 Remove the high-voltage power supply assembly (1 of 9) .......................................................	347
Figure 5-260 Remove the high-voltage power supply assembly (2 of 9) .......................................................	348
Figure 5-261 Remove the high-voltage power supply assembly (3 of 9) .......................................................	348
Figure 5-262 Remove the high-voltage power supply assembly (4 of 9) .......................................................	349
Figure 5-263 Remove the high-voltage power supply assembly (5 of 9) .......................................................	349
Figure 5-264 Remove the high-voltage power supply assembly (6 of 9) .......................................................	350

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Figure 5-265 Remove the high-voltage power supply assembly (7 of 9) .......................................................	350
Figure 5-266 Remove the high-voltage power supply assembly (8 of 9) .......................................................	351
Figure 5-267 Remove the high-voltage power supply assembly (9 of 9) .......................................................	352
Figure 5-268 Reinstall the high-voltage power supply assembly (1 of 3) .......................................................	352
Figure 5-269 Reinstall the high-voltage power supply assembly (2 of 3) .......................................................	353
Figure 5-270 Reinstall the high-voltage power supply assembly (3 of 3) .......................................................	353
Figure 5-271 Remove the lifter driver assembly (1 of 4) ................................................................................	354
Figure 5-272 Remove the lifter driver assembly (2 of 4) ................................................................................	355
Figure 5-273 Remove the lifter driver assembly (3 of 4) ................................................................................	355
Figure 5-274 Remove the lifter driver assembly (4 of 4) ................................................................................	356
Figure 5-275 Remove the DC controller PCA (1 of 2) ....................................................................................	357
Figure 5-276 Remove the DC controller PCA (2 of 2) ....................................................................................	358
Figure 5-277 Remove the upper cassette pickup assembly (1 of 3) ..............................................................	359
Figure 5-278 Remove the upper cassette pickup assembly (2 of 3) ..............................................................	360
Figure 5-279 Remove the upper cassette pickup assembly (3 of 3) ..............................................................	360
Figure 5-280 Reinstall the upper cassette pickup assembly ..........................................................................	361
Figure 5-281 Remove the lower cassette drive assembly .............................................................................	362
Figure 5-282 Remove the main motor (1 of 7) ...............................................................................................	363
Figure 5-283 Remove the main motor (2 of 7) ...............................................................................................	364
Figure 5-284 Remove the main motor (3 of 7) ...............................................................................................	364
Figure 5-285 Remove the main motor (4 of 7) ...............................................................................................	365
Figure 5-286 Remove the main motor (5 of 7) ...............................................................................................	365
Figure 5-287 Remove the main motor (6 of 7) ...............................................................................................	366
Figure 5-288 Remove the main motor (7 of 7) ...............................................................................................	366
Figure 5-289 Reinstall the print cartridge cam linkage (1 of 2) ......................................................................	367
Figure 5-290 Reinstall the print cartridge cam linkage (2 of 2) ......................................................................	367
Figure 5-291 Remove the lower cassette pickup assembly (1 of 5) ..............................................................	368
Figure 5-292 Remove the lower cassette pickup assembly (2 of 5) ..............................................................	369
Figure 5-293 Remove the lower cassette pickup assembly (3 of 5) ..............................................................	369
Figure 5-294 Remove the lower cassette pickup assembly (4 of 5) ..............................................................	370
Figure 5-295 Remove the lower cassette pickup assembly (5 of 5) ..............................................................	370
Figure 5-296 Remove the HCI front door (single tray unit only) (1 of 2) ........................................................	372
Figure 5-297 Remove the HCI front door (single tray unit only) (2 of 2) ........................................................	372
Figure 5-298 Remove the HCI right door (1 of 5) ...........................................................................................	373
Figure 5-299 Remove the HCI right door (2 of 5) ...........................................................................................	373
Figure 5-300 Remove the HCI right door (3 of 5) ...........................................................................................	374
Figure 5-301 Remove the HCI right door (4 of 5) ...........................................................................................	374
Figure 5-302 Remove the HCI right door (5 of 5) ...........................................................................................	375
Figure 5-303 Remove the HCI back cover (1 of 2) ........................................................................................	376
Figure 5-304 Remove the HCI back cover (2 of 2) ........................................................................................	376
Figure 5-305 Remove the HCI motor(s) and PCA(s) (1 of 2) .........................................................................	377
Figure 5-306 Remove the HCI motor(s) and PCA(s) (2 of 2) .........................................................................	377
Figure 5-307 Remove the HCI paper pickup assembly (1 of 6) .....................................................................	378
Figure 5-308 Remove the HCI paper pickup assembly (2 of 6) .....................................................................	378
Figure 5-309 Remove the HCI paper pickup assembly (3 of 6) .....................................................................	379
Figure 5-310 Remove the HCI paper pickup assembly (4 of 6; middle paper pickup assembly shown) .......	379
Figure 5-311 Remove the HCI paper pickup assembly (5 of 6) .....................................................................	380
Figure 5-312 Remove the HCI paper pickup assembly (6 of 6) .....................................................................	380
Figure 5-313 Remove the HCI right side tray rail(s) (1 of 2) ..........................................................................	381
Figure 5-314 Remove the HCI right side tray rail(s) (2 of 2) ..........................................................................	381

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Figure 5-315 Remove the HCI left side tray rail(s) (1 of 3) .............................................................................		382
Figure 5-316 Remove the HCI left side tray rail(s) (2 of 3) .............................................................................		382
Figure 5-317 Remove the HCI left side tray rail(s) (3 of 3) .............................................................................		383
Figure 5-318 Remove the HCI lifter driver assembly (1 of 2) .........................................................................		384
Figure 5-319 Remove the HCI lifter driver assembly (2 of 2) .........................................................................		384
Figure 5-320 Reinstall the HCI lifter driver assembly .....................................................................................		385
Figure 6-1 Engine test button location ...........................................................................................................		506
Figure 6-2	Sensors (ADF) ..............................................................................................................................	523
Figure 6-3 Wiring diagram (ADF) ...................................................................................................................		524
Figure 6-4	Components (scanner) .................................................................................................................	525
Figure 6-5 Wiring diagram (scanner) ..............................................................................................................		526
Figure 6-6 External covers and panels (stapler/stacker) ................................................................................		527
Figure 6-7	Sensors (stapler/stacker) ..............................................................................................................	528
Figure 6-8	PCA (stapler/stacker) ....................................................................................................................	529
Figure 6-9 Wiring diagram (stapler/stacker) ...................................................................................................		530
Figure 6-10 Engine (base unit) .......................................................................................................................		531
Figure 6-11 Engine interface connections (engine) .......................................................................................		532
Figure 6-12 Engine external panels and covers (engine) ..............................................................................		533
Figure 6-13 Engine major components (engine) ............................................................................................		535
Figure 6-14 Engine motors and fans (engine) ................................................................................................		536
Figure 6-15 Engine PCAs (engine) ................................................................................................................		537
Figure 6-16 Sensors and switches (engine) ...................................................................................................		538
Figure 6-17 Sensors and switches (engine; duplexer) ...................................................................................		539
Figure 6-18 Engine dc controller PCA (engine) .............................................................................................		539
Figure 6-19 DC controller input/output signals (1 of 5) (engine) ....................................................................		541
Figure 6-20 DC controller input/output signals (2 of 5) (engine) ....................................................................		542
Figure 6-21 DC controller input/output signals (3 of 5) (engine) ....................................................................		543
Figure 6-22 DC controller input/output signals (4 of 5) (engine) ....................................................................		544
Figure 6-23 DC controller input/output signals (5 of 5) (engine) ....................................................................		545
Figure 6-24 Wiring diagram, engine (1 of 2) (engine) ....................................................................................		546
Figure 6-25 Wiring diagram, engine (2 of 2) (engine) ....................................................................................		547
Figure 6-26 Timing diagram (engine) .............................................................................................................		548
Figure 6-27 External covers and panels (HCI) ...............................................................................................		549
Figure 6-28 Major components (HCI) .............................................................................................................		550
Figure 6-29 Motor(s) and PCA(s) (HCI) .........................................................................................................		551
Figure 6-30	Sensors (HCI) .............................................................................................................................	552
Figure 6-31 Wiring diagram (HCI; 1 X 500-sheet feeder) ..............................................................................		553
Figure 6-32 Wiring diagram (HCI; 3 x 500-sheet feeder) ...............................................................................		554
Figure 6-33 Repetitive defect ruler .................................................................................................................		555
Figure 6-34 Print cartridge and MFP contacts ................................................................................................		564
Figure 7-1	ADF ...............................................................................................................................................	582
Figure 7-2 Front end cover (ADF) ..................................................................................................................		584
Figure 7-3	Hinges ...........................................................................................................................................	586
Figure 7-4 Base assembly (ADF) ...................................................................................................................		588
Figure 7-5 Backbone assembly (ADF) ...........................................................................................................		590
Figure 7-6 Jam cover (ADF) ...........................................................................................................................		594
Figure 7-7 Pickup roller assembly (ADF) .......................................................................................................		596
Figure 7-8 Separation pad assembly (ADF) ...................................................................................................		598
Figure 7-9 Separation floor assembly (ADF) ..................................................................................................		600
Figure 7-10 Scanner assembly base ..............................................................................................................		602

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Figure 7-11 Carriage assembly (scanner; optical assembly) .........................................................................		604
Figure 7-12 Scanner top assembly ................................................................................................................		606
Figure 7-13 Scanner controller board (SCB) assembly .................................................................................		608
Figure 7-14 Scanner lid sensor assembly ......................................................................................................		610
Figure 7-15 Scanner transmission drive assembly ........................................................................................		612
Figure 7-16 Main body (stapler/stacker) .........................................................................................................		614
Figure 7-17 Paper feed assembly (stapler/stacker) .......................................................................................		618
Figure 7-18 Alignment/jogger assembly (stapler/stacker) ..............................................................................		620
Figure 7-19 Stapler assembly (stapler/stacker) ..............................................................................................		624
Figure 7-20 Stapler/stacker PCA assembly ...................................................................................................		626
Figure 7-21 External panel and covers (print engine) ....................................................................................		628
Figure 7-22 Cartridge door assembly (print engine) ......................................................................................		632
Figure 7-23 Internal components (1 of 3) (print engine) .................................................................................		636
Figure 7-24 Internal components (2 of 3) (print engine) .................................................................................		640
Figure 7-25 Internal components (3 of 3) (print engine) .................................................................................		644
Figure 7-26 Paper delivery assembly (print engine) ......................................................................................		648
Figure 7-27 Lifter drive assembly (print engine) .............................................................................................		652
Figure 7-28 Fuser drive assembly (print engine) ............................................................................................		654
Figure 7-29 Lower drive assembly (print engine) ...........................................................................................		656
Figure 7-30 Upper cassette (print engine) .....................................................................................................		658
Figure 7-31 Lower cassette (print engine) .....................................................................................................		662
Figure 7-32 Upper cassette pickup assembly (print engine) ..........................................................................		666
Figure 7-33 Lower cassette pickup assembly (print engine) ..........................................................................		670
Figure 7-34 Registration assembly (print engine) ..........................................................................................		674
Figure 7-35 Paper feed assembly (print engine) ............................................................................................		676
Figure 7-36 PCA assemblies (print engine) ...................................................................................................		678
Figure 7-37 Fuser (print engine) .....................................................................................................................		680
Figure 7-38 Fuser pressure release assembly (print engine) ........................................................................		684
Figure 7-39 1X500 HCI main body .................................................................................................................		686
Figure 7-40 3X500 HCI main body .................................................................................................................		690
Figure 7-41 Lifter drive assembly (HCI) .........................................................................................................		694
Figure 7-42	Cassette (HCI) ............................................................................................................................	696
Figure 7-43 Paper pickup assembly (HCI) .....................................................................................................		700
Figure 7-44	PCA assemblies ..........................................................................................................................	704

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