Ricoh FT4227 Manual page 303

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DEVELOPMENT
12 February 1992
6.3 DRIVE MECHANISM
[A]
[Black]
[D]
[E]
[B]
[C]
[G]
[F]
[A]
[D]
[E]
[B]
[F]
[C]
[Color]
[G]
The main motor [A] rotation is transmitted to the development unit drive gears
through a timing belt [B] and the development drive clutch [C]. When the
drive clutch is energized, the rotation of the clutch gear [D] is transmitted to
the development roller gear [E] and the paddle roller gears [F].
The paddle roller shaft has a knob [G] on the front end so that it can be
turned manually to exchange developer.
The knob has a one-way clutch inside. The one-way clutch prevents the
development roller from turning in the wrong direction.
2-48

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