List of figures Figure 4-1 Slot for the security cable ................................................................................................................ 92 Figure 4-2 Supply item locations ...................................................................................................................... 94 Figure 5-1 Relationship between the main product systems ......................................................................... 116 Figure 5-2 Engine-control system ..................................................................................................................
118 Figure 5-3 DC controller block diagram .......................................................................................................... 119 Figure 5-4 High-voltage power supply circuits ............................................................................................... 123 Figure 5-5 Low-voltage power-supply circuit .................................................................................................. 125 Figure 5-6 Fuser (fixing) components ............................................................................................................
127 Figure 5-7 Fuser temperature-control circuit .................................................................................................. 128 Figure 5-8 Laser/scanner system ................................................................................................................... 131 Figure 5-9 Image-formation system ............................................................................................................... 133 Figure 5-10 Image-formation process ............................................................................................................
134 Figure 5-11 Pre-exposure .............................................................................................................................. 135 Figure 5-12 Primary charging ......................................................................................................................... 135 Figure 5-13 Laser-beam exposure ................................................................................................................. 136 Figure 5-14 Development ...............................................................................................................................
136 Figure 5-15 Primary transfer .......................................................................................................................... 137 Figure 5-16 Secondary transfer ...................................................................................................................... 137 Figure 5-17 Separation ................................................................................................................................... 138 Figure 5-18 Fusing .........................................................................................................................................
138 Figure 5-19 ITB cleaning ................................................................................................................................ 139 Figure 5-20 Drum cleaning ............................................................................................................................. 139 Figure 5-21 Print-cartridge system ................................................................................................................. 140 Figure 5-22 Developing-roller engagement and disengagement control .......................................................
141 Figure 5-23 ITB unit ........................................................................................................................................ 142 Figure 5-24 Three states of primary-transfer-roller engagement and disengagement ................................... 144 Figure 5-25 ITB cleaning process .................................................................................................................. 145 Figure 5-26 Toner patterns for calibration ......................................................................................................
146 Figure 5-27 Switches and sensors for the pickup, feed, and delivery system ............................................... 148 Figure 5-28 Motors and solenoids for the pickup, feed, and delivery system ................................................ 149 Figure 5-29 Three main units of the pickup, feed, and delivery system ......................................................... 150 Figure 5-30 Pickup and feed unit ................................................................................................................... 151 Figure 5-31 Cassette-pickup mechanism .......................................................................................................
152 Figure 5-32 Cassette presence sensor .......................................................................................................... 153 ENWW xix