Gestetner A294 Service Manual page 112

TONER SUPPLY AND RECYCLING
Toner Near-end and End Detection/Bottle Replacement
A294D911.WMF
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 [B]. If the toner near end sensor [C] detects that no toner has
come out of the toner bottle, the toner bottle enters the toner near-end condition.
The toner bottle motor [A] then rotates the toner bottle up to 15 times to try to
supply toner to the toner entrance tank [B]. If the sensor detects toner more than 5
times, the near-end condition is cleared. However, if the toner near end sensor [C]
fails to detect toner 10 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.
A294/A295
CÓPIA NÃO CONTROLADA
[C]
2-62
CÓPIA NÃO CONTROLADA
[A]
A294D909.WMF
[B]
SM