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List of figures
Figure 1-1 Sample model and serial number label .......................................................................................... 10
Figure 3-1 3-bin stapler/stacker accessory ...................................................................................................... 70
Figure 3-2 Booklet-maker finisher accessory ................................................................................................... 71
Figure 4-1 Supply item locations ...................................................................................................................... 85
Figure 4-2 Location of product components that require cleaning ................................................................. 104
Figure 4-3 Location of components that require cleaning .............................................................................. 105
Figure 4-4 Location of IPTU components that require cleaning ..................................................................... 106
Figure 5-1 Relationship between the main product systems ......................................................................... 114
Figure 5-2 Engine-control system .................................................................................................................. 119
Figure 5-3 DC controller block diagram .......................................................................................................... 120
Figure 5-4 Fuser components ........................................................................................................................ 126
Figure 5-5 Fuser temperature-control circuit .................................................................................................. 127
Figure 5-6 Low-voltage power-supply circuit .................................................................................................. 130
Figure 5-7 High-voltage power supply circuits ............................................................................................... 132
Figure 5-8 Laser/scanner system ................................................................................................................... 134
Figure 5-9 Image-formation system ............................................................................................................... 136
Figure 5-10 Image-formation process ............................................................................................................ 137
Figure 5-11 Pre-exposure .............................................................................................................................. 138
Figure 5-12 Primary charging ......................................................................................................................... 138
Figure 5-13 Laser-beam exposure ................................................................................................................. 139
Figure 5-14 Development ............................................................................................................................... 139
Figure 5-15 Primary transfer .......................................................................................................................... 140
Figure 5-16 Secondary transfer ...................................................................................................................... 140
Figure 5-17 Separation ................................................................................................................................... 141
Figure 5-18 Fusing ......................................................................................................................................... 141
Figure 5-19 ITB cleaning ................................................................................................................................ 142
Figure 5-20 Drum cleaning ............................................................................................................................. 142
Figure 5-21 Print-cartridge system ................................................................................................................. 143
Figure 5-22 Imaging-drum system ................................................................................................................. 145
Figure 5-23 Developing-roller engagement and disengagement control ....................................................... 146
Figure 5-24 ITB unit ........................................................................................................................................ 147
Figure 5-25 Three states of primary-transfer-roller engagement and disengagement ................................... 149
Figure 5-26 Secondary-transfer-roller unit ..................................................................................................... 151
Figure 5-27 Toner patterns for calibration ...................................................................................................... 152
ENWW xxv