Basic operation of the printer
..............................................................................................
105
Printer operating sequence
................................................................................
105
Control system overview
.....................................................................................................
105
Pickup-and-feed system overview
......................................................................................
106
Laser/scanner system overview
.........................................................................................
106
Image-formation system overview
......................................................................................
106
General descriptions
...........................................................................................................................
107
Dc controller PCA
...............................................................................................................
108
Motor and fan control
.........................................................................................
109
Power supply
......................................................................................................................
110
Fuser-control circuit
............................................................................................
110
Fuser over-temperature protection
...................................................................
111
Overcurrent/overvoltage protection
....................................................................
111
Laser/scanner assembly
.....................................................................................................
112
Paper-pickup-and-feed system
...........................................................................................................
114
Pickup-and-feed block
.......................................................................................................
116
Printing from tray 1
.............................................................................................................
117
Printing from tray 2
.............................................................................................................
119
Tray 2, 500-sheet feeder, and 1,500-sheet feeder media-size detection
..........
119
Lifter-driver operation
.........................................................................................
120
Multiple-feed prevention
.....................................................................................
121
Media-skew prevention
.......................................................................................................
121
Fuser/delivery block
............................................................................................................
122
Jam detection
......................................................................................................................
122
Printer pickup delay jam from tray 1
..................................................................
123
Printer pickup delay jam from tray 2
..................................................................
123
Printer pickup stationary jam
..............................................................................
123
Printer-delivery wrap jam when feeding regular media
.....................................
123
Printer delivery wrap-jam when feeding irregular media
...................................
123
Printer delivery-delay jams
.................................................................................
124
Printer door-open jam
.......................................................................................
124
Printer residual-media jam
.................................................................................
124
Printing from the 500-sheet feeder
.....................................................................................
125
500-sheet feeder pickup and feeding
................................................................
126
Printing from the 1,500-sheet feeder
..................................................................................
128
1,500-sheet feeder pickup and feeding
.............................................................
129
1,500-sheet feeder lifting mechanism
................................................................
131
Envelope feeder
..................................................................................................................
132
Envelope-feeder pickup and feeding
.................................................................
132
Envelope feeder jam detection
..........................................................................................
133
Envelope feeder pickup delay jam
.....................................................................
133
Envelope feeder pickup stationary jam
..............................................................
133
Duplexer
..............................................................................................................................
134
Reversing and duplexer pickup
..........................................................................
135
Duplexer jam detection
......................................................................................................
136
Stacker and stapler/stacker
................................................................................................................
137
Stacker
................................................................................................................................
139
Stacker feed and delivery
..................................................................................
139
Stacker jam detection
.........................................................................................................
141
Stacker-feed jam
...............................................................................................
141
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