Old toner [F] does not fall through the sieve. It is pushed through opening [G] to the toner transport coil
[H]. The coil moves the toner towards the back of the machine, where it is deposited in the toner collection
bottle.
The toner separation unit and toner transport coil [H] are connected to the same drive shaft (driven by the
development motor).
Old Toner Collection
Mechanism
The toner collection motor [A] drives the coils [B, C, and D].
• Coil [B] brings old toner from the toner hopper (which originally came from the drum cleaning unit)
• Coil [C] brings old toner from the transfer unit.
• Coil [D] transports old toner from both sources to the toner collection bottle.
The toner collection bottle can hold 5000 cc of old toner, equivalent to about 1,000K copies.
Motor [A] switches on and off at the same time as the drum motor.
Error Detection
The toner collection motor sensor [E] monitors the gear driven by motor [A]. If the sensor output does not
change for 3 seconds while motor [A] is on, then SC590 (Toner Collection Motor Error) is logged.
6. Details
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