Plug and port locations ................................................................................................... 28
Locations of major assemblies ....................................................................................... 29
Switch locations .............................................................................................................. 32
Sensor locations ............................................................................................................. 33
500-sheet paper feeder accessory ................................................................................ 34
Duplex unit ...................................................................................................................... 35
General timing chart ....................................................................................................... 37
Circuit diagrams .............................................................................................................. 38
Use HP Device Toolbox (Windows) ................................................................................................... 40
Internal print-quality test pages ...................................................................................................... 41
Clean the paper path ....................................................................................................... 41
Print the configuration page .......................................................................................... 41
Print quality troubleshooting tools .................................................................................................. 42
Repetitive defects ruler .................................................................................................. 42
Control panel menus ......................................................................................................................... 43
Setup Menu ..................................................................................................................... 43
HP Web Services ........................................................................................... 43
Reports menu ............................................................................................... 44
System Setup menu ..................................................................................... 45
Service menu ................................................................................................ 47
Network Setup menu .................................................................................... 49
Quick Forms menu ........................................................................................ 50
Interpret control panel messages .................................................................................................... 51
Control panel message types ......................................................................................... 51
Control panel messages ................................................................................................. 51
Rear door open ............................................................................................. 51
49 Error, Turn off then on ............................................................................ 51
50.x Fuser Error ............................................................................................ 51
51.XX Error ................................................................................................... 52
54.XX Error ................................................................................................... 52
55.X Error ...................................................................................................... 52
57 Fan Error, Turn off then on ..................................................................... 52
59.X Error ...................................................................................................... 53
79 Error Turn off then on ............................................................................. 53
Black Cartridge Low ...................................................................................... 53
Black Very Low ............................................................................................. 53
Cleaning ........................................................................................................ 54
Device error, press OK .................................................................................. 54
Front door open ............................................................................................ 54
Genuine HP supply installed ........................................................................ 54
Invalid driver Press OK ................................................................................. 54
vi ENWW
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