Toner Supply - Gestetner A193 Service Manual

PCU (PHOTOCONDUCTOR UNIT)

4.5.7 Toner Supply

- Toner Bottle Replenishment Mechanism -
[C]
When a toner bottle is placed on the bottle holder unit [A] and pushed forward
and the toner bottle holder lever [B] is lowered to its original position, the
following actions will occur automatically to allow toner to be supplied to the
development unit.
•
The pin [C] on the toner shutter [D] is pulled out (opened) as a result of
the shape of the developer cartridge.
•
The cap [E] remaining on the toner bottle is pulled out of the bottle and
moved away from the movement of the roller [G] by the chuck [F], which
rides along the curved rail behind the toner bottle holder lever.
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 [H] that helps move toner to the development
unit.
When the bottle holder unit is pulled out to add new toner, the following
actions will occur automatically to prevent toner from spilling.
•
The chuck releases the toner bottle cap and insert the cap into the bottle.
•
The toner shutter shuts the opening as a result of pressure from a spring.
(A193)
[D]
A193D516.wmf
[H]
2-38
[E]
[E]
[F]
[F]
[G]
[A]
[B]
[G]
A193D019.wmf
SM