Document feeder paper present sensor ...................................... 394 Document feeder Y (length) sensor ............................................. 395 Document feeder jam cover sensor ............................................ 396 Flatbed Y (length) sensor .......................................................... 397 Flatbed cover angle sensor ....................................................... 398 Flatbed cover sensor ................................................................ 399 Document feeder registration sensor .......................................... 400 Document feeder exit sensor .....................................................
401 Document feeder read sensor ................................................... 402 Component tests ..................................................................................... 403 Control-panel tests ................................................................... 403 Component test (special-mode test) ............................................ 403 Stapler/stacker ....................................................................... 404 Diagrams for troubleshooting .................................................................................. 405 Block diagrams ......................................................................................
405 Sensors .................................................................................. 405 Switches (product base) ........................................................... 408 Solenoids (product base) .......................................................... 409 Clutch (product base) ............................................................... 410 Motors ................................................................................... 411 Fans (product base) ................................................................. 415 Main assemblies .....................................................................
416 Main PCAs (product base) ........................................................ 423 Rollers (product base) .............................................................. 424 DC controller connections ........................................................................ 425 Scanner controller board (SBC) connectors ................................................ 427 General timing chart ............................................................................... 428 General circuit diagrams ......................................................................... 430 Internal print-quality test pages ................................................................................
437 Print-quality-troubleshooting pages ............................................................ 437 Cleaning page ....................................................................................... 438 Configuration page ................................................................................ 438 Configuration page ................................................................. 438 HP embedded Jetdirect page .................................................... 440 Embedded protocol page ......................................................... 441 Finding important information on the configuration pages ............
442 Print-quality troubleshooting tools ............................................................................ 443 Repetitive defects ruler ............................................................................ 443 Control panel menus .............................................................................................. 443 Administration menu ............................................................................... 445 Reports menu .......................................................................... 445 xvi ENWW