Ricoh A156 - Drive Mechanism

6.2 DRIVE MECHANISM
When the main motor [A] turns, the rotation is transmitted from the
development drive shaft [B] to the paddle roller gear [C] through the
development clutch [D].
The gears of the toner supply unit are driven by the toner supply roller drive
gear [E] when the toner supply clutch [F] activates.
All gears on the development unit are helical gears. These gears are quieter
than normal gears. The development drive shaft engages the development
roller gear when the development unit is pushed in.
[E]
[F]
[D]
[A]
[B]
[C]
A156/A160/A162 2-54 STM