2G4
1-4-12
7980 Waste toner full (Total page count less
than 100,000 pages of printing)
The toner-full sensor has detected that
the waste toner is full before the total
print page of less than 100,000 pages.
Defective drum
unit.
Follow the flow chart.
Defective waste
toner full sensor.
Defective engine/
high voltage PWB.
Code Contents
Remarks
Causes Check procedures/corrective measures
No
No
Yes
Yes
Shake the drum unit
horizontally.
Turn power switch off,
then on.
Turn power switch off,
then on.
"7980" error
shown?
"7980" error
shown?
Replace the drum unit.
Replace the waste toner full
sen
sor or engine/high voltage
PWB.
End.
Start
See page P.1-5-6.
See page P.1-5-14.
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