Step 8: Fusing
.................................................................................................
141
Step 9: ITB cleaning
........................................................................................
142
Step 10: Drum cleaning
...................................................................................
142
Print cartridge
..................................................................................................................
143
Imaging drum
...................................................................................................................
144
Developing roller engagement and disengagement
........................................
146
Intermediate transfer belt (ITB) unit
.................................................................................
147
Primary-transfer-roller engagement and disengagement
................................
148
ITB unit detection
............................................................................................
149
Secondary-transfer-roller unit
..........................................................................................
151
Calibration
........................................................................................................................
151
Color-misregistration contol
............................................................................
152
Image-stabilization control
..............................................................................
153
Color-sensor control (duplex models only)
......................................................................
153
Gray-axis correction
........................................................................................
155
Pickup, feed, and delivery system
....................................................................................................
156
Pickup-and-feed unit
........................................................................................................
159
Cassette pickup
...............................................................................................
161
Cassette paper-size and cassette-presence detection
...................
161
Cassette lift operation
.....................................................................
163
Cassette paper-level and paper-presence detection
......................
164
Multifeed prevention
.......................................................................
165
Multipurpose tray pickup
.................................................................................
166
Multipurpose tray last-paper detection
...........................................
167
Paper feed
.......................................................................................................
168
Skew-feed prevention
.....................................................................
169
Paper-type detection
......................................................................
170
Feed-speed control
.........................................................................
171
Fusing and delivery unit
...................................................................................................
173
Loop control
....................................................................................................
173
Pressure-roller pressurization control
.............................................................
174
Duplexing unit
..................................................................................................................
175
Duplexing reverse and feed control
................................................................
176
Jam detection
...................................................................................................................................
177
Optional input trays
..........................................................................................................................
179
Paper-feeder pickup and feed operation
.........................................................................
182
6
Removal and replacement
Removal and replacement strategy
..................................................................................................
186
Introduction
......................................................................................................................
186
Required tools
..................................................................................................................
187
Types of screws
...............................................................................................................
187
Service approach
.............................................................................................................
188
ENWW
vii