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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. Microsoft®, Windows®, and Windows NT® are U.S. registered trademarks of Microsoft Corporation. UNIX® is a registered trademark of The Open Group. ENERGY STAR® and the ENERGY STAR logo® are U.S. registered marks of the United States Environmental Protection Agency. Java TM 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 .........................................................................