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