HP — HP Color Laserjet CP4020, CP4520 (service manual (EN)

Figure 3-50 Yellow comparison page ............................................................................................................. 303 Figure 3-51 Black print-quality troubleshooting page ..................................................................................... 304 Figure 3-52 Configuration page ..................................................................................................................... 307 Figure 3-53 HP embedded Jetdirect page .....................................................................................................

309 Figure 3-54 Embedded protocol page ........................................................................................................... 310 Figure 3-55 Repetitive defects ruler ............................................................................................................... 312 Figure 3-56 Sample event log ........................................................................................................................ 377 Figure 3-57 Common causes of jams (by area) .............................................................................................

384 Figure 3-58 Jam locations .............................................................................................................................. 386 Figure 4-1 External covers, panels, and doors .............................................................................................. 432 Figure 4-2 Right door assembly ..................................................................................................................... 434 Figure 4-3 Front door assembly .....................................................................................................................

436 Figure 4-4 Internal components 1 of 7 ........................................................................................................... 438 Figure 4-5 Internal components 2 of 7 ........................................................................................................... 440 Figure 4-6 Internal components 3 of 7 ........................................................................................................... 442 Figure 4-7 Internal components 4 of 7 ...........................................................................................................

444 Figure 4-8 Internal components 5 of 7 ........................................................................................................... 446 Figure 4-9 Internal components 6 of 7 ........................................................................................................... 448 Figure 4-10 Internal components 7 of 7 ......................................................................................................... 450 Figure 4-11 Cassettes 2-5 ..............................................................................................................................

452 Figure 4-12 Paper pickup assembly ............................................................................................................... 454 Figure 4-13 Tray 1 paper pickup assembly .................................................................................................... 456 Figure 4-14 Registration assembly ................................................................................................................ 458 Figure 4-15 Secondary transfer assembly ....................................................................................................

460 Figure 4-16 Delivery assembly ...................................................................................................................... 462 Figure 4-17 Fuser assembly ........................................................................................................................... 464 Figure 4-18 PCAs ........................................................................................................................................... 466 Figure 4-19 Paper feeders .............................................................................................................................

468 Figure 4-20 Paper feeder external covers, panels, and doors ....................................................................... 470 Figure 4-21 1 X 500 paper feeder main body ................................................................................................ 472 Figure 4-22 3 X 500 paper feeder main body ................................................................................................ 474 ENWW xxix