Install the print cartridge .................................................................................................... 21 3 Maintenance Manage supplies ................................................................................................................................ 24 Life expectancies of supplies ............................................................................................. 24 Check and order supplies .................................................................................................. 24 Store supplies ....................................................................................................................
24 Replace supplies ............................................................................................................... 25 Print cartridge .................................................................................................... 25 HP policy on non-HP supplies ........................................................................................... 26 HP fraud hotline ................................................................................................................. 27 Clean the product ...............................................................................................................................
28 Clean the exterior .............................................................................................................. 28 Clean the flatbed scanner glass ........................................................................................ 28 Clean the lid backing ......................................................................................................... 28 Clean the paper path ......................................................................................................... 29 Management tools ..............................................................................................................................
30 Information pages .............................................................................................................. 30 Embedded Web server ...................................................................................................... 30 Features ............................................................................................................ 31 4 Operational theory Basic operation ................................................................................................................................... 34 Sequence of operation for the base unit ............................................................................
34 Scanner functions and operation ........................................................................................................ 36 Scanner functions ............................................................................................................. 36 Scanner operation ............................................................................................................. 37 Internal components (base unit) ......................................................................................................... 38 Engine control system ........................................................................................................................
39 Laser/scanner system ........................................................................................................................ 41 Pickup/feed/delivery system ............................................................................................................... 42 Image-formation system .................................................................................................................... 43 5 Removal and replacement Removal and replacement strategy ....................................................................................................
48 Introduction ........................................................................................................................ 48 Removal and replacement warnings, cautions, notes, and tips ........................ 48 Electrostatic discharge ...................................................................................... 49 Required tools ................................................................................................... 49 Before performing service .................................................................................................
49 After performing service ..................................................................................................... 50 Post-service tests .............................................................................................................. 51 Test 1 (print-quality test) ................................................................................... 51 Test 2 (copy-quality test) ................................................................................... 51 Parts removal order ...........................................................................................................
52 Scanner assembly .............................................................................................................................. 53 Link assemblies and scanner support-frame spring .......................................................... 53 Scanner lid ......................................................................................................................... 56 Control-panel overlay ......................................................................................................... 57 iv ENWW