Figure 7-20 Test the tray 2 paper-out sensor ................................................................................................ 335
Figure 7-21 Test the Tray 2 closed sensor (1 of 2) ........................................................................................ 336
Figure 7-22 Test the Tray 2 closed sensor (2 of 2) ........................................................................................ 336
Figure 7-23 Test the Tray 2 stack-surface sensor .......................................................................................... 337
Figure 7-24 Test the optional Tray 3-empty sensor ....................................................................................... 337
Figure 7-25 Test the optional Tray 3 media-feed sensor .............................................................................. 338
Figure 7-26 Test the optional Tray 3 stack-surface sensor ........................................................................... 339
Figure 7-27 Test the optional Tray 3 media-size sensors .............................................................................. 339
Figure 7-28 Formatter PCA ............................................................................................................................ 343
Figure 7-29 DC controller PCA ....................................................................................................................... 344
Figure 7-30 Paper feeder driver PCA ............................................................................................................ 345
Figure 7-31 Component locations (1 of 5) ...................................................................................................... 346
Figure 7-32 Component locations (2 of 5) ...................................................................................................... 346
Figure 7-33 Component locations (3 of 5) ...................................................................................................... 347
Figure 7-34 Component locations (4 of 5) ...................................................................................................... 348
Figure 7-35 Component locations (5 of 5) ...................................................................................................... 349
Figure 7-36 1 x 500 paper feeder ................................................................................................................... 352
Figure 7-37 Sensors ...................................................................................................................................... 353
Figure 7-38 General timing chart .................................................................................................................... 355
Figure 7-39 General circuit diagram .............................................................................................................. 356
Figure 7-40 Paper feeder circuit diagram ....................................................................................................... 357
Figure 7-41 Repetitive defects ruler ............................................................................................................... 358
Figure 7-42 Print-quality troubleshooting procedure ...................................................................................... 360
Figure 7-43 Yellow print-quality troubleshooting page ................................................................................... 360
Figure 7-44 Yellow comparison page ............................................................................................................. 361
Figure 7-45 Black print-quality troubleshooting page ..................................................................................... 362
Figure 7-46 Configuration page ..................................................................................................................... 365
Figure 7-47 HP embedded Jetdirect page ..................................................................................................... 366
Figure 7-48 Embedded protocol page ........................................................................................................... 367
Figure 7-49 Sample event log ........................................................................................................................ 396
Figure 7-50 Jam locations .............................................................................................................................. 405
Figure 8-1 External covers, panels, and doors .............................................................................................. 454
Figure 8-2 Right door assembly ..................................................................................................................... 456
Figure 8-3 Internal components 1 of 5 ........................................................................................................... 458
Figure 8-4 Internal components 2 of 5 ........................................................................................................... 460
Figure 8-5 Internal components 3 of 5 ........................................................................................................... 462
Figure 8-6 Internal components 4 of 5 ........................................................................................................... 464
Figure 8-7 Internal components 5 of 5 ........................................................................................................... 466
Figure 8-8 Cassette ........................................................................................................................................ 468
Figure 8-9 Cassette paper pickup assembly .................................................................................................. 470
Figure 8-10 MP paper pickup assembly ......................................................................................................... 472
Figure 8-11 Registration assembly ................................................................................................................ 474
Figure 8-12 Secondary transfer assembly .................................................................................................... 476
Figure 8-13 Delivery assembly ................................................................................................
...................... 478
xx
iv ENWW