Paper-feeder motors .......................................................................................................... 60 Paper-feeder paper pickup and feed ................................................................................. 61 Paper-feeder cassette lift operation ................................................................................... 61 Paper-feeder jam detection ............................................................................................... 62 2 Removal and replacement Introduction .........................................................................................................................................
64 Removal and replacement strategy ................................................................................................... 65 Electrostatic discharge ....................................................................................................................... 66 Required tools ................................................................................................................................... 67 Service approach ...............................................................................................................................
68 Before performing service .................................................................................................. 68 After performing service ..................................................................................................... 68 Post-service test ................................................................................................................ 68 Print-quality test ................................................................................................ 68 Removal and replacement procedures ..............................................................................................
69 Customer self repair (CSR) components ........................................................................... 69 Print cartridges .................................................................................................. 69 Toner-collection unit .......................................................................................... 72 Memory DIMM ................................................................................................... 74 Product memory ............................................................................... 74 Install memory and font DIMMs ........................................................
74 Enable memory ................................................................................ 78 Check DIMM installation ................................................................... 78 Fuser ................................................................................................................ 79 Pickup roller (Tray 1) ......................................................................................... 80 Separation pad (Tray 1) .................................................................................... 81 Separation roller assembly (Tray 2) ..................................................................
82 Pickup roller (Tray 2) ......................................................................................... 84 Pickup roller, separation roller, and feed roller (Tray 3) .................................... 85 Secondary transfer roller ................................................................................... 86 Intermediate transfer belt (ITB) ......................................................................... 87 External panels, covers, and doors ................................................................................... 89 Identification and location ..................................................................................
89 Right-front cover and control-panel assembly ................................................... 90 Left cover .......................................................................................................... 92 Rear cover ......................................................................................................... 93 Remove the rear cover ..................................................................... 93 Toner collection unit access door ...................................................................... 93 Right-rear cover ................................................................................................
95 Top cover .......................................................................................................... 96 Remove the top cover ...................................................................... 96 Front-door assembly ......................................................................................... 98 ENWW v