Ricoh M290-27 - Page 16

After Replacing the Laser Unit............................................................................................................ 31
Paper Feed........................................................................................................................................................32
Paper Feed Roller........................................................................................................................................ 32
Friction Pad...................................................................................................................................................33
Registration Roller........................................................................................................................................ 34
Image Transfer Roller...................................................................................................................................34
Paper Feed Clutch........................................................................................................................................36
Bottom Plate Lift Clutch................................................................................................................................ 36
Drive.................................................................................................................................................................. 38
Main Motor..................................................................................................................................................38
Fan.....................................................................................................................................................................41
Fan................................................................................................................................................................ 41
Fusing Unit.........................................................................................................................................................42
Fusing Unit.................................................................................................................................................... 42
Electrical Components..................................................................................................................................... 43
Main Board.................................................................................................................................................. 43
Main Board of SFP Models................................................................................................................43
Main Board of MFP Models.............................................................................................................. 44
Wi-Fi PCB (Wi-Fi Models Only).................................................................................................................45
PSU................................................................................................................................................................45
HVP............................................................................................................................................................... 46
Scanner.............................................................................................................................................................48
Scanner Unit.................................................................................................................................................48
Scanner Open/Close Switch..................................................................................................................... 50
Sensors..............................................................................................................................................................51
Registration Sensor...................................................................................................................................... 51
Exit Sensor.................................................................................................................................................... 51
Thermistor..................................................................................................................................................... 51
Bottom Plate Position Sensor.......................................................................................................................52
Paper Size Sensor........................................................................................................................................52
4. System Maintenance
Utilities............................................................................................................................................................... 55
Using CE Tools............................................................................................................................................. 55
14