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Toner Collecting Section Main Unit Theory of Operation
2-62
II Composition/Operation
D. Waste toner full condition reset decision after detection of a waste toner full
condition
• If the Waste Toner Full Sensor (PC11) does not output continuously a voltage of a prede-
termined value or more for a predetermined period of time or more during “waste toner
status decision,” a “waste toner full condition reset decision” is made. (Control for pre-
venting false detection of a waste toner full condition.)
• If the Waste Toner Full Sensor (PC11) continuously outputs a voltage of a predetermined
value or less for a predetermined period of time when the number of print dots (waste
toner detection dot count) reaches a predetermined value after the Front Door has been
closed, the waste toner full condition is reset.
• If the Waste Toner Full Sensor (PC11) continuously outputs a voltage of a predetermined
value or more for a predetermined period of time before the number of print dots (waste
toner detection dot count) reaches a predetermined value after the Front Door has been
closed, the machine determines that there is a waste toner full condition.
Power source
Full condition
Waste toner /
Status decision
Full condition
detection
Full condition
reset decision
Near-full
condition reset
Near-full
condition
4138to2137e4
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