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1 October, 1999
DEVELOPMENT
2.4.5 TONER SUPPLY
Toner bottle replenishment mechanism
[F]
[G]
[H]
[D]
[C]
[E]
[A]
G038D507.WMF
[B]
When a toner bottle is placed in the bottle holder unit [A] and the unit is pushed in
completely, pin [B] moves against the side [C] of the PCU, and the toner shutter [D]
is pulled out to open the bottle. When the toner bottle holder lever [E] is put back in
the original position, the cap [F] on the toner bottle is pulled away and kept in place
by the chuck [G].
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 a new toner bottle, the following
happens automatically to prevent toner from scattering.
• The chuck releases the toner bottle cap into its proper position.
• The toner shutter shuts to block the opening as a result of pressure from a
spring.
2-15
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