HP LASERJET PRO 200 COLOR M251n - Page 17

List of figures
Figure 1-1 Product systems ..................................................................................................................... 2
Figure 1-2 Product components ............................................................................................................... 3
Figure 1-3 Engine control system components ........................................................................................... 5
Figure 1-4 DC controller circuit diagram .................................................................................................. 6
Figure 1-5 Low-voltage power supply ...................................................................................................... 7
Figure 1-6 High-voltage power supply ..................................................................................................... 8
Figure 1-7 Laser/scanner system ............................................................................................................. 9
Figure 1-8 Image-formation system ........................................................................................................ 10
Figure 1-9 Image-formation process ...................................................................................................... 11
Figure 1-10 Primary charging ............................................................................................................... 12
Figure 1-11 Laser-beam exposure ......................................................................................................... 12
Figure 1-12 Development ..................................................................................................................... 13
Figure 1-13 Primary transfer ................................................................................................................. 14
Figure 1-14 Secondary transfer ............................................................................................................ 14
Figure 1-15 Separation from the ITB ...................................................................................................... 15
Figure 1-16 Fusing .............................................................................................................................. 15
Figure 1-17 ITB cleaning ..................................................................................................................
.... 16
Figure 1-18 Drum cleaning .................................................................................................................. 17
Figure 1-19 Pickup-and-feed system ....................................................................................................... 18
Figure 2-1 DC controller connectors ...................................................................................................... 32
Figure 2-2 Major components .............................................................................................................. 34
Figure 2-3 Timing diagram ................................................................................................................... 36
Figure 2-4 Circuit diagram ................................................................................................................... 37
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