List of figures Figure 1-1 Product components ........................................................................................................................................... 2 Figure 1-2 Engine control system components ................................................................................................................... 7 Figure 1-3 DC controller circuit diagram .............................................................................................................................. 8 Figure 1-4 Low-voltage power supply .................................................................................................................................
9 Figure 1-5 Fuser block diagram ......................................................................................................................................... 10 Figure 1-6 Fuser control circuit .......................................................................................................................................... 11 Figure 1-7 High-voltage power supply .............................................................................................................................. 14 Figure 1-8 Laser/scanner system ......................................................................................................................................
15 Figure 1-9 Image-formation system .................................................................................................................................. 16 Figure 1-10 Image-formation process ............................................................................................................................... 17 Figure 1-11 Primary charging ............................................................................................................................................ 17 Figure 1-12 Laser-beam exposure .....................................................................................................................................
18 Figure 1-13 Development .................................................................................................................................................. 18 Figure 1-14 Primary transfer ............................................................................................................................................. 19 Figure 1-15 Secondary transfer ......................................................................................................................................... 19 Figure 1-16 Separation from the drum ..............................................................................................................................
20 Figure 1-17 Fusing .............................................................................................................................................................. 20 Figure 1-18 ITB cleaning ..................................................................................................................................................... 21 Figure 1-19 Drum cleaning ................................................................................................................................................. 22 Figure 1-20 Pickup-and-feed system ................................................................................................................................
23 Figure 1-21 Multiple-feed prevention ................................................................................................................................ 26 Figure 1-22 ADF paper path ............................................................................................................................................... 31 Figure 1-23 ADF jam clearance ........................................................................................................................................... 32 Figure 2-1 Control-panel 2ndary Service test access buttons ..........................................................................................
45 Figure 2-2 Engine test button access ................................................................................................................................. 47 Figure 2-3 Major components ............................................................................................................................................ 50 Figure 2-4 Motors and fans ................................................................................................................................................ 52 Figure 2-5 Rollers ...............................................................................................................................................................
53 Figure 2-6 PCAs ................................................................................................................................................................... 54 Figure 2-7 Optional 250-sheet cassette ............................................................................................................................ 55 Figure 2-8 Timing diagram .................................................................................................................................................
56 Figure 2-9 Circuit diagram .................................................................................................................................................. 57 ENWW xvii