Xerox Phaser 840 Service Manual page 10

22: Manuf. Skew Margins ......................................................................... 5 - 171
23: Manuf. Banding ................................................................................... 5 - 171
Cleaning and
Maintenance
Cleaning ............................................................................................................. 6 - 174
Pick Roller Cleaning Method .................................................................... 6 - 175
Cleaning Page (Phaser 840 printer only) ................................................... 6 - 175
Vacuum ...................................................................................................... 6 - 175
Drum temperature sensor........................................................................... 6 - 175
Maintenance....................................................................................................... 6 - 176
Maintenance roller ..................................................................................... 6 - 176
Waste tray .................................................................................................. 6 - 176
Lubrication......................................................................................................... 6 - 177
Inspection........................................................................................................... 6 - 178
Key FRU Removal and
Replacement
Main board and its components ................................................................. 7 - 180
Power supply.............................................................................................. 7 - 183
Power control board.................................................................................. 7 - 184
Upper feed roller assembly ........................................................................ 7 - 185
Paper/drum heater ...................................................................................... 7 - 187
Drum/transfix assembly............................................................................. 7 - 188
Drum position sensor assembly (Phaser 840 printer) ................................ 7 - 192
Drum position sensor assembly (Phaser 850/860)..................................... 7 - 194
Printhead .................................................................................................... 7 - 196
X-axis motor and drive assembly .............................................................. 7 - 199
Y-axis belt drive assembly (Phaser 840 printer)........................................ 7 - 200
Y-axis belt drive assembly (Phaser 850/860 printer)................................. 7 - 201
Cap/wipe/purge assembly (Phaser 840 printer) ......................................... 7 - 202
Cap/wipe/purge assembly (Phaser 850/860 printer).................................. 7 - 204
FRU Parts List
Cabinet FRU's ........................................................................................... 8 - 208
Imaging FRU's .......................................................................................... 8 - 210
Paper Path FRU's....................................................................................... 8 - 212
Motor and Fan FRUs ................................................................................. 8 - 214
Circuit Board FRUs ................................................................................... 8 - 216
Solenoid and Clutch FRUs ........................................................................ 8 - 218
Gear and Belt FRUs ................................................................................... 8 - 220
Sensor and Flag FRUs ............................................................................... 8 - 222
High-capacity Paper Tray Assembly ......................................................... 8 - 224
Service tools....................................................................................................... 8 - 226
Supplies and accessories .................................................................................... 8 - 227
iv Phaser 840/850/860/8200 Color Printer - Service Manual
6 - 173
7 - 179
8 - 207