Ricoh FT6645 Manual page 51

DRUM UNIT 23 April 1993
2.5.2 Drive Mechanism
[C]
[A]
[E]
[B]
[D]
The drive force from the main motor is transmitted to the cleaning unit drive
gear via the timing belt [A] and the cleaning unit coupling [B]. The cleaning
unit drive gear [C] then transmits the force to the front side through the
cleaning brush [D]. The force at the front side is used for the toner collection
coil gear [E].
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