Main input tray .................................................................................................................... 21 Priority feed slot .................................................................................................................. 21 Specific types of media ....................................................................................................... 21 Setting media types ............................................................................................................................. 22 Set the media type ..............................................................................................................
22 3 Maintenance Life expectancies of parts that wear .................................................................................................... 24 Cleaning the product ........................................................................................................................... 25 Cleaning the print path ........................................................................................................ 26 Cleaning the print-cartridge area ........................................................................................ 26 Cleaning the pickup roller ...................................................................................................
29 User-replaceable parts ........................................................................................................................ 30 Replacing the pickup roller ................................................................................................. 30 Replacing the separation pad ............................................................................................. 33 Replacing the main input tray (paper-pickup tray assembly) ............................................. 35 Replacing the output-bin extension (delivery-tray assembly) .............................................
36 4 Operational overview Basic functions ..................................................................................................................................... 38 Formatter system ................................................................................................................................. 39 Central processing unit ....................................................................................................... 39 RAM ....................................................................................................................................
39 USB interface ...................................................................................................................... 39 Control panel ....................................................................................................................... 39 Draft mode (EconoMode) ................................................................................................... 39 HP Memory Enhancement technology (MEt) ..................................................................... 39 Enhanced I/O ......................................................................................................................
40 Printer functions ................................................................................................................................... 41 Engine control system (engine control unit and power assembly) ..................................... 42 Printer-engine-control system ............................................................................ 42 Printer laser/scanner unit ................................................................................... 43 Power system on the engine power assembly ..................................................
44 Image-formation system ..................................................................................................... 45 The seven image-formation processes .............................................................. 46 Print cartridge ...................................................................................................................... 47 Printer paper-feed system .................................................................................................. 47 Jam detection ......................................................................................................................
49 Conditions of jam detection ................................................................................ 49 Solenoid, sensors, switches, and motor ............................................................................. 50 Basic sequence of operation (formatter-to-printer) ............................................................. 51 5 Removal and replacement Removal and replacement strategy ..................................................................................................... 54 Required tools .....................................................................................................................
54 Before performing service ................................................................................................... 54 Print cartridge ...................................................................................................................... 55 Parts removal order ............................................................................................................ 56 User-replaceable parts ........................................................................................................................ 57 iv ENWW