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PTM 2-55 B070/B071
Toner Near-end, Toner End, Bottle Replacement
Each toner bottle [A] has an independent toner bottle motor [B]. An empty toner bottle
can be replaced during printing.
The toner near-end sensor detects toner as it falls from the toner bottle into the toner
entrance tank [C]. If the toner near end sensor [D] detects that no toner has come out
of the toner bottle, the toner bottle enters the toner near-end condition.
The toner bottle motor then rotates the toner bottle up to 20 times to try to supply toner
to the toner entrance tank. If the sensor detects toner more than 5 times, the near-end
condition is cleared. However, if the toner near end sensor fails to detect toner 5
consecutive times, 200 more copies can be made from that bottle, then the machine
declares it to be empty.
When the bottle is empty, the machine switches to the second toner bottle. The first
toner bottle cap motor closes the bottle cap and the second toner bottle cap motor
pulls out the second bottle cap. The motors operate until the first bottle inner cap
sensor does not detect the actuator and the second bottle inner cap sensor does
detect the actuator.
The second toner bottle is then rotated up to 15 times. If the near-end sensor detects
toner after 5 times, the machine can print from that bottle.
B070D911.WMF
B070D909.WMF
[A]
[C]
[D]
[B]