HP CP3525dn - Color LaserJet Laser Printer - Page 19

List of figures
Figure 4-1 Slot for the security cable ................................................................................................................ 80
Figure 4-2 Supply item locations ...................................................................................................................... 82
Figure 5-1 Relationship between the main product systems ......................................................................... 104
Figure 5-2 Engine-control system .................................................................................................................. 106
Figure 5-3 DC controller block diagram .......................................................................................................... 107
Figure 5-4 High-voltage power supply circuits ............................................................................................... 111
Figure 5-5 Low-voltage power-supply circuit .................................................................................................. 113
Figure 5-6 Fuser (fixing) components ............................................................................................................ 115
Figure 5-7 Fuser temperature-control circuit .................................................................................................. 116
Figure 5-8 Laser/scanner system ................................................................................................................... 119
Figure 5-9 Image-formation system ............................................................................................................... 121
Figure 5-10 Image-formation process ............................................................................................................ 122
Figure 5-11 Pre-exposure .............................................................................................................................. 123
Figure 5-12 Primary charging ......................................................................................................................... 123
Figure 5-13 Laser-beam exposure ................................................................................................................. 124
Figure 5-14 Development ............................................................................................................................... 124
Figure 5-15 Primary transfer .......................................................................................................................... 125
Figure 5-16 Secondary transfer ...................................................................................................................... 125
Figure 5-17 Separation ................................................................................................................................... 126
Figure 5-18 Fusing ......................................................................................................................................... 126
Figure 5-19 ITB cleaning ................................................................................................................................ 127
Figure 5-20 Drum cleaning ............................................................................................................................. 127
Figure 5-21 Print-cartridge system ................................................................................................................. 128
Figure 5-22 Developing-roller engagement and disengagement control ....................................................... 129
Figure 5-23 ITB unit ........................................................................................................................................ 130
Figure 5-24 Three states of primary-transfer-roller engagement and disengagement ................................... 132
Figure 5-25 ITB cleaning process .................................................................................................................. 133
Figure 5-26 Toner patterns for calibration ...................................................................................................... 134
Figure 5-27 Switches and sensors for the pickup, feed, and delivery system ............................................... 136
Figure 5-28 Motors and solenoids for the pickup, feed, and delivery system ................................................ 137
Figure 5-29 Three main units of the pickup, feed, and delivery system ......................................................... 138
Figure 5-30 .................................................................................................................................................... 139
Figure 5-31 Cassette-pickup mechanism ....................................................................................................... 140
Figure 5-32 Cassette presence sensor .......................................................................................................... 141
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