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 Fans ..................................................................................................................................................
9 Figure 1-5 Solenoids and clutches ................................................................................................................... 10 Figure 1-6 Switches .......................................................................................................................................... 11 Figure 1-7 Sensors ........................................................................................................................................... 11 Figure 1-8 DC controller block diagram ............................................................................................................
13 Figure 1-9 Fuser control circuit ......................................................................................................................... 15 Figure 1-10 Fuser-heater control circuit ........................................................................................................... 17 Figure 1-11 Low-voltage power supply (LVPS) ................................................................................................ 19 Figure 1-12 High-voltage power supply ............................................................................................................
21 Figure 1-13 Laser/scanner system ................................................................................................................... 22 Figure 1-14 Electrophotographic process block diagram (1 of 2) .................................................................... 24 Figure 1-15 Electrophotographic process block diagram (2 of 2) .................................................................... 25 Figure 1-16 Image formation process ..............................................................................................................
26 Figure 1-17 Primary charging ........................................................................................................................... 27 Figure 1-18 Laser beam exposure ................................................................................................................... 27 Figure 1-19 Print cartridge ................................................................................................................................ 28 Figure 1-20 Transfer .........................................................................................................................................
29 Figure 1-21 Separation ..................................................................................................................................... 29 Figure 1-22 Fusing ........................................................................................................................................... 30 Figure 1-23 Drum cleaning ............................................................................................................................... 30 Figure 1-24 Pickup, feed, and delivery system block diagram .........................................................................
31 Figure 1-25 Photo sensors, motor, and solenoid ............................................................................................. 32 Figure 2-1 Phillips and pozidrive screwdriver comparison ............................................................................... 37 Figure 2-2 Parts removal order ........................................................................................................................ 39 Figure 2-3 Remove the pickup roller (1 of 2) ....................................................................................................
40 Figure 2-4 Remove the pickup roller (2 of 2) .................................................................................................... 40 Figure 2-5 Remove the separation pad assembly ........................................................................................... 41 Figure 2-6 Remove the transfer roller .............................................................................................................. 42 Figure 2-7 Remove the tray ..............................................................................................................................
43 Figure 2-8 Remove the output bin tray extension ............................................................................................ 44 Figure 2-9 Remove the left cover, simplex product (1 of 4) ............................................................................. 45 ENWW xiii