Toner Supply - Ricoh B121 Service Manual

DEVELOPMENT

6.9.5 TONER SUPPLY

Toner Bottle Replenishment Mechanism
[E]
[F]
[G]
[A]
[D]
[B]
[C]
B121D946.WMF
When a toner bottle is placed in the bottle holder unit [A] and the unit is pushed in
completely, toner shutter [B] moves against the side [C] of the PCU. When the
toner bottle holder lever [D] is put back in the original position, the cap [E] on the
toner bottle is pulled away and kept in place by the chuck [F].
The toner supply mechanism transports toner from the bottle to the development
unit. The toner bottle has a spiral groove [G] that helps move toner to the
development unit.
To add a new toner bottle, first lift the toner bottle holder. When this is done, the
chuck releases the toner bottle cap into its proper position to prevent toner from
scattering.
Then, when the bottle holder unit is pulled out to add a new toner bottle, the toner
shutter shuts to block the opening as a result of pressure from a spring.
SM 6-41 B121 Series/B259 Series