Multipurpose tray pickup
.................................................................................
156
Paper feed
.......................................................................................................
157
Skew-feed prevention
.....................................................................
158
OHT detection
................................................................................
158
Fusing and delivery unit
...................................................................................................
159
Loop control
....................................................................................................
159
Pressure-roller pressurization control
.............................................................
160
Duplexing unit
.................................................................................................................
162
Duplexing reverse and feed control
................................................................
163
Duplex pickup operation
..................................................................................
163
Jam detection
...................................................................................................................................
164
Optional paper feeder
.......................................................................................................................
166
Paper-feeder pickup and feed operation
.........................................................................
168
Paper-size detection and cassette-presence detection
...................................................
168
Paper-feeder cassette lift operation
.................................................................................
170
Paper-feeder presence detection
....................................................................................
171
Paper-feeder multiple feed prevention
.............................................................................
172
Paper feeder jam detection
..............................................................................................
173
Scanning/image capture system system
..........................................................................................
174
Optical assembly
.............................................................................................................
174
Automatic document feed system
....................................................................................
174
Control panel
...................................................................................................
174
Sensors in the ADF
.........................................................................................
174
ADF paper path
...............................................................................................
175
Stapler
.............................................................................................................
176
6
Removal and replacement
Introduction
.......................................................................................................................................
178
Removal and replacement strategy
.................................................................................................
178
Electrostatic discharge
.....................................................................................................................
178
Required tools
.................................................................................................................................
179
Before performing service
................................................................................................................
180
After performing service
...................................................................................................................
181
Post-service test
...............................................................................................................................
182
Print-quality test
...............................................................................................................
182
Copy-quality test
..............................................................................................................
182
DC controller PCA
............................................................................................................................
183
Parts removal order
..........................................................................................................................
184
Customer self repair (CSR) components
.........................................................................................
186
Print cartridges
.................................................................................................................
186
Stapler cartridge
..............................................................................................................
188
Duplex-reverse guide
.......................................................................................................
189
Toner-collection unit
........................................................................................................
190
ENWW
vii