Cartridge presence detection
............................................................................................
174
Memory tag detection
.......................................................................................
174
Photosensitive drum detection
.........................................................................
174
Developing cylinder disengaging control
.........................................................
175
ETB (electrostatic transfer/transport belt)
.........................................................................
175
Transfer roller (Y, C, M) engagement/disengagement detection
.....................................
177
Transfer roller engagement/disengagement control
.........................................................
177
Calibration and cleaning
...................................................................................................
178
ETB cleaning
....................................................................................................
179
Color misregistration corrective control
...........................................................
180
Color misregistration detection
.........................................................................................
181
Image stabilization control
................................................................................................
182
Environmental change control
.........................................................................
183
Image density calibration control (DMAX)
.......................................................
184
Image halftone calibration control (DHALF)
.....................................................
184
Image density detection
...................................................................................
184
Pickup/feed system
...........................................................................................................................
186
Pickup/feed unit
................................................................................................................
191
Cassette detection and cassette media size detection
....................................
191
Cassette pickup operation
...............................................................................
192
Media lifting operation
......................................................................................
192
Initial lift
............................................................................................
193
Lift-up during printing
.......................................................................
193
Multiple-feed prevention
...................................................................................
194
Skew correction
................................................................................................
195
Media detection
................................................................................................
196
Feed speed control
..........................................................................................
197
Fusing and delivery block
.................................................................................................
198
Loop control
.....................................................................................................
199
Fusing pressure release mechanism
...............................................................
200
Duplex feed unit
................................................................................................................
201
Duplexing reverse/duplexing feed operation
...................................................
202
Jam detection
....................................................................................................................
204
Pickup delay jam
..............................................................................................
205
Pickup stationary jam
.......................................................................................
205
Delivery delay jam
............................................................................................
205
Door open jam
..................................................................................................
205
Residual paper jam
..........................................................................................
205
Reversing unit jam 1
........................................................................................
206
Reversing unit jam 2
........................................................................................
206
Duplexing pickup unit jam 1
.............................................................................
206
Automatic delivery function
..............................................................................
206
Scanner system
.................................................................................................................................
207
Electrical system
...............................................................................................................
207
Motors and fans
................................................................................................................
208
Optical assembly
...............................................................................................................
209
ADF feed system
..............................................................................................................
210
ADF jam detection
............................................................................................................
211
Residual media jam
..........................................................................................................
211
ADF pickup jam
.................................................................................................................
211
ENWW
ix