Toner Transport - Ricoh J-P2 Service Manual

DEVELOPMENT 17 January, 2003

Toner Transport

[B]
[C] [D]
[E]
[A]
G080D958.WMF
Each toner attraction pump has the same mechanism. The pump (toner attraction
pump) [A], which consists of the toner supply clutch [B], rubber tube [C], and rotor
[D], attracts the toner in the toner transport tube [E] toward the development unit.
The toner supply clutch drives the rotor, which draws the toner in from the cartridge
and passes it to the development unit. When supplying toner, the clutch is on for
0.7 second and off for 1.3 seconds. The clutch turns on and off as many times as
necessary to supply the appropriate amount of toner. The amount of toner depends
on the results of toner supply control.
Motor drive comes from the development drive motors.
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