PostScript .......................................................................................................... 55
Network Settings ................................................................................................................ 55
Embedded Web server ....................................................................................................................... 56
Features ............................................................................................................................. 56
Use HP Web Jetadmin software ........................................................................................................ 57
Security features ................................................................................................................................ 57
Turn on password protection using the embedded Web server ........................................ 57
Turn on password protection from the control panel ......................................................... 57
Turn on private receive feature .......................................................................................... 58
Manage supplies ................................................................................................................................ 59
Check and order supplies .................................................................................................. 59
Check supplies status by using the control panel ............................................. 59
Check supplies status by using HP ToolboxFX ................................................ 59
Store supplies ................................................................................................... 60
HP policy on non-HP supplies ........................................................................... 60
HP fraud hotline ................................................................................................ 60
Recycle supplies ............................................................................................... 60
Replace supplies ............................................................................................................... 61
Print cartridge .................................................................................................... 61
Clean the product .............................................................................................................. 64
Clean the paper path ......................................................................................... 64
Clean the paper path from HP ToolboxFX ....................................... 65
Clean the paper path from the product control panel ....................... 65
Clean the automatic document feeder (ADF) pickup roller assembly ............... 66
Clean the lid backing ......................................................................................... 68
Clean the scanner glass .................................................................................... 69
Clean the exterior .............................................................................................. 70
Firmware updates .............................................................................................................. 70
Recover from a corrupted firmware download .................................................. 70
5 Theory of operation
Basic operation ................................................................................................................................... 74
Major product systems ....................................................................................................... 74
Product components .......................................................................................................... 75
Sequence of operation ....................................................................................................... 75
Engine control system ........................................................................................................................ 77
DC controller ...................................................................................................................... 78
Low-voltage power supply ................................................................................................. 78
Fuser failure detection ....................................................................................... 79
High-voltage power supply ................................................................................................ 80
Laser/scanner system ....................................................................................................................... 81
Laser failure detection ....................................................................................................... 81
Image-formation system ..................................................................................................................... 82
ENWW v
