Development
D017/D018/D019/D020 6-40 SM
6.9.5 TONER SUPPLY
Toner Bottle Replenishment Mechanism
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.
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