Toner Supply; Toner Bottle Replenishment Mechanism - Ricoh A219 Service Manual

6. TONER SUPPLY

6.1 TONER BOTTLE REPLENISHMENT MECHANISM

[F]
[E]
[C] [B] [D]
When a toner bottle is placed on the bottle holder unit [A] and pushed back in
completely, the following happens automatically.
•
The pin [B] on the imaging unit toner shutter [C] is pushed out (shutter
opened) by the projection [D].
•
The pin [E] on the toner shutter [F] is pulled up (shutter opened) as a
result of the shape of the developer cartridge.
When the toner bottle holder lever [G] is pushed down to the operation
position, the following happens automatically to allow toner to be supplied to
the development unit.
•
The shaft [H] is pushed out from the machine by the curved rail behind
the toner bottle holder lever, and this pulls out the cap [I] into the chuck
[J], where it is held.
The toner end detection system determines when to drive the toner bottle
replenishment mechanism (see Toner End Detection). The toner supply
mechanism transports toner from the bottle to the development unit. The
toner bottle has a spiral groove [K] that helps move toner to the development
unit.
When the bottle holder unit is pulled out to add new toner, the following
happens automatically to prevent toner from scattering.
•
The chuck releases the toner bottle cap into its proper position.
•
Both shutters close as a result of pressure from their springs.
SM
CÓPIA NÃO CONTROLADA
[I]
[A]
A219D517.wmf
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CÓPIA NÃO CONTROLADA
TONER SUPPLY
[J]
[K]
A219D518.wmf
[H]
[G]
A219