Figure 7-35 1 x 500 paper feeder ................................................................................................................... 420
Figure 7-36 Sensors ...................................................................................................................................... 421
Figure 7-37 General timing chart .................................................................................................................... 423
Figure 7-38 General circuit diagram (1 of 2) .................................................................................................. 424
Figure 7-39 General circuit diagram (2 of 2) .................................................................................................. 425
Figure 7-40 Product circuit block diagram ...................................................................................................... 425
Figure 7-41 Paper feeder circuit diagram ....................................................................................................... 426
Figure 7-42 Repetitive defects ruler ............................................................................................................... 428
Figure 7-43 Print-quality troubleshooting procedure ...................................................................................... 431
Figure 7-44 Yellow print-quality troubleshooting page ................................................................................... 432
Figure 7-45 Yellow comparison page ............................................................................................................. 432
Figure 7-46 Black print-quality troubleshooting page ..................................................................................... 433
Figure 7-47 Configuration page ..................................................................................................................... 436
Figure 7-48 HP embedded Jetdirect page ..................................................................................................... 438
Figure 7-49 Embedded protocol page ........................................................................................................... 439
Figure 7-50 Jam locations .............................................................................................................................. 473
Figure 8-1 ADF/scanner assembly ................................................................................................................. 520
Figure 8-2 External covers, panels, and doors .............................................................................................. 522
Figure 8-3 Right door assembly ..................................................................................................................... 524
Figure 8-4 Internal components (1 of 5) ......................................................................................................... 526
Figure 8-5 Internal components (2 of 5) ......................................................................................................... 528
Figure 8-6 Internal components (3 of 5) ......................................................................................................... 530
Figure 8-7 Internal components (4 of 5) ......................................................................................................... 532
Figure 8-8 Internal components (5 of 5) ......................................................................................................... 534
Figure 8-9 Fuser ............................................................................................................................................. 536
Figure 8-10 250-sheet cassette ...................................................................................................................... 538
Figure 8-11 250-sheet cassette paper pickup assembly ................................................................................ 540
Figure 8-12 Registration assembly ................................................................................................................. 542
Figure 8-13 Paper-delivery assembly ............................................................................................................. 544
Figure 8-14 PCAs ........................................................................................................................................... 546
Figure 8-15 Formatter components ................................................................................................................ 548
Figure 8-16 500-sheet paper feeder .............................................................................................................. 550
Figure 8-17 Paper feeder main body ............................................................................................................. 552
xxviii ENWW
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