Ricoh Di-C1 Manual page 211

Replacement – Image Transfer Unit (1)
Image Transfer Belt Unit
The ITB is in contact with the K drum before you turn the
switch off. Take care not to damage the K drum.
If the power failed in the middle of a colour job, with the ITB
in contact with all four drums, then the belt touches all 4
drums, and you cannot remove the ITB.
Remove the ITB unit motor from the old ITB unit and install it
in the new one. The new ITB unit does not have an ITB unit
motor.
Slide 211
No additional notes
» To release the ITB from the K drum, you must turn the image
transfer belt unit lock lever clockwise before you remove the
unit. If you do not do this, you will damage the K drum.
» Remove the exit tray, then turn the gear until the belt is fully
raised. After that, the ITB contacts the K drum only.
211
Di-C1 Training