Ricoh K-C3 Service Manual page 3

B245/B276/B277/B268/B269 Service Manual
Tray Heaters ................................................................................................................... 33
Upper Tray Heater ....................................................................................................... 33
Lower Tray Heater (Two-tray Model Only) ................................................................... 35
Tray Heaters For The Optional Paper Feed Units ....................................................... 36
Key Counter Installation .................................................................................................. 40
GDI Expansion ................................................................................................................ 43
Accessory Check......................................................................................................... 43
Installing Expansion Component ................................................................................. 43
Installing Panels and Keys .............................................................................................. 45
Preventive Maintenance ..................................................................................................... 46
PM Tables ....................................................................................................................... 46
How to Reset the PM Counter......................................................................................... 49
Replacement and Adjustment ............................................................................................. 51
General Cautions ............................................................................................................ 51
PCU (Photoconductor Unit) ......................................................................................... 51
Transfer Roller ............................................................................................................. 51
Scanner Unit................................................................................................................ 51
Laser Unit .................................................................................................................... 52
Fusing Unit .................................................................................................................. 52
Paper Feed.................................................................................................................. 52
Special Tools and Lubricants........................................................................................... 53
Exterior Covers & Operation Panel ................................................................................. 54
Rear Cover .................................................................................................................. 54
Rear Lower Cover (Two-tray Models Only).................................................................. 54
Copy Tray .................................................................................................................... 55
Upper Covers .............................................................................................................. 55
Left Cover .................................................................................................................... 56
Front Cover.................................................................................................................. 56
Front Right Cover ........................................................................................................ 57
Right Rear Cover ......................................................................................................... 57
Right Door (Duplex Unit (B269/B277)) ........................................................................ 58
By-pass Tray................................................................................................................ 58
Left Lower Cover (Two-tray Models Only) ................................................................... 59
Right Lower Cover (Two-tray Models Only) ................................................................. 59
Platen Cover Sensor ................................................................................................... 60
Scanner Unit ................................................................................................................... 61
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