The following table shows the drive components for each model.
A gear for developer coil rotation is provided on the front side of the unit (downstream side).
IM C2000/2500/C3000/C3500:
Drive source for Bk  | Drive source for C, M, Y  | 
|---|---|
PCU: black/image transfer motor (M17)  | Development motor: CMY (M16)  | 
The PCU: Black / Image Transfer Motor (M17) is also used for the image transfer unit and waste toner bottle. Drive is switched by the development solenoid (SOL4).
IM C4500/C5500/C6000:
Drive source for Bk  | Drive source for C, M, Y  | 
|---|---|
Development motor: black (M29)  | Development motor: CMY (M16)  |