List of figures Figure 1-1 Product block diagram ...................................................................................................................... 2 Figure 1-2 Engine-control system ...................................................................................................................... 7 Figure 1-3 Motors ............................................................................................................................................... 8 Figure 1-4 Solenoids and clutches .....................................................................................................................
9 Figure 1-5 Switches ........................................................................................................................................... 9 Figure 1-6 Sensors ........................................................................................................................................... 10 Figure 1-7 DC controller block diagram ............................................................................................................ 11 Figure 1-8 Fuser control circuit .........................................................................................................................
12 Figure 1-9 Fuser-heater control circuit ............................................................................................................. 14 Figure 1-10 Low-voltage power supply (LVPS) ................................................................................................ 16 Figure 1-11 High-voltage power supply ............................................................................................................ 18 Figure 1-12 Laser/scanner system ...................................................................................................................
19 Figure 1-13 Electrophotographic process block diagram (1 of 2) .................................................................... 21 Figure 1-14 Electrophotographic process block diagram (2 of 2) .................................................................... 22 Figure 1-15 Image formation process .............................................................................................................. 23 Figure 1-16 Primary charging ...........................................................................................................................
24 Figure 1-17 Laser beam exposure ................................................................................................................... 24 Figure 1-18 Print cartridge ................................................................................................................................ 25 Figure 1-19 Transfer ......................................................................................................................................... 26 Figure 1-20 Separation .....................................................................................................................................
26 Figure 1-21 Fusing ........................................................................................................................................... 27 Figure 1-22 Drum cleaning ............................................................................................................................... 27 Figure 1-23 Pickup, feed, and delivery system block diagram ......................................................................... 28 Figure 1-24 Photo sensors, motor, and solenoid .............................................................................................
29 Figure 2-1 Phillips and pozidrive screwdriver comparison ............................................................................... 33 Figure 2-2 Parts removal order ........................................................................................................................ 36 Figure 2-3 Remove the pickup roller (1 of 2) .................................................................................................... 37 Figure 2-4 Remove the pickup roller (2 of 2) ....................................................................................................
37 Figure 2-5 Remove the separation pad assembly ........................................................................................... 38 Figure 2-6 Remove the transfer roller .............................................................................................................. 39 Figure 2-7 Remove the tray .............................................................................................................................. 40 Figure 2-8 Remove the output bin tray extension ............................................................................................
41 Figure 2-9 Remove the front cover .................................................................................................................. 42 Figure 2-10 Remove the left cover (1 of 5) ....................................................................................................... 43 ENWW xiii