HP LaserJet Enterprise M4555 - Control Panel Menus Overview

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