Motors, fans, and solenoids ............................................................................................... 53 Laser/scanner system ........................................................................................................................ 55 Pickup-and-feed-system ..................................................................................................................... 56 Cassette (tray 2) pickup mechanism ................................................................................. 57 Multipurpose-tray (tray 1) pickup mechanism ....................................................................
58 Jam detection .................................................................................................................... 58 Image-formation system ..................................................................................................................... 59 Image-formation process ................................................................................................... 60 Latent-image formation block ............................................................................................ 60 Step 1: primary charging ................................................................................... 60 Step 2:
laser-beam exposure ............................................................................ 61 Development block ............................................................................................................ 61 Step 3: developing ............................................................................................ 61 Transfer block .................................................................................................................... 61 Step 4: image transfer ....................................................................................... 61 Step 5: separation from the drum ......................................................................
62 Fixing block ........................................................................................................................ 62 Step 6: fusing .................................................................................................... 62 Drum-cleaning block .......................................................................................................... 62 Step 7: drum cleaning ....................................................................................... 62 Print cartridge ....................................................................................................................
63 Print-cartridge activation .................................................................................................... 63 5 Removal and replacement Removal and replacement strategy .................................................................................................... 66 Introduction ........................................................................................................................ 66 Required tools .................................................................................................................... 66 Types of screws .................................................................................................................
67 Service approach ............................................................................................................... 67 Before performing service .................................................................................................. 68 After performing service ..................................................................................................... 68 Parts removal order ........................................................................................................... 68 Customer self-repair parts ..................................................................................................................
70 Tray 1 pickup roller ............................................................................................................ 70 Tray 2 pickup roller ............................................................................................................ 72 Tray 2 separation pad ........................................................................................................ 73 Tray 3 retard roller ............................................................................................................. 74 Tray 3 pickup and feed rollers ...........................................................................................
75 Formatter ........................................................................................................................... 76 CompactFlash cards .......................................................................................................... 77 DIMMs ............................................................................................................................... 80 Control-panel overlay ......................................................................................................... 84 Duplexer ............................................................................................................................
84 External doors, covers, and panels .................................................................................................... 86 Right cover ......................................................................................................................... 86 Lower back cover ............................................................................................................... 86 Face-up bin ........................................................................................................................ 87 Top cover ...........................................................................................................................
89 Left cover ........................................................................................................................... 92 Left front cover ................................................................................................................... 94 ENWW v