Development Drive Mechanism - Ricoh B286 Service Manual

6.6.2 DEVELOPMENT DRIVE MECHANISM

[A]: Timing belt (from the main motor)
[B]: Gear train
[C]: Paddle roller
[D]: Mixing auger
[E]: Development roller
[F]: Gear
[G]: Toner supply clutch
[H]: Toner agitator shaft (controlled by the toner supply clutch)
The toner supply clutch engages only when toner density control switches on the clutch to
supply toner from the toner cartridge.
The main motor:
! Switches on 1.25 s after the drum motor switches on.
Turns the development roller at 60 mm/s, to be the same speed as the drum.
!
! Stops 83 ms (approx. 5 mm turned) after the ID sensor pattern is written during the
initial rotation of the drum motor.
SM 6-33
Development
B286/B289