Electrical Component Defects
C279 6-10 SM
Component Condition Symptom
No master
The “No master” indicator is not lit if there is
no master.
The “B” jam indicator is lit and is not
cancelled when a master is not on the drum
and master making is started.
2nd Feed Sensor reflected
light /
There is a
paper
The “C” jam indicator is lit.
No paper
The “B” jam indicator is lit whenever a copy
is made.
Master Eject Sensor Open The “B” jam indicator is lit.
Shorted The “BE” jam indicator is lit.
Clamper Open Sensor
Open
E-00 is displayed whenever the clamper
operates.
Shorted E-00 is displayed
Clamper Close Sensor Open E-00 is displayed
Shorted
E-00 is displayed whenever the clamper
operates.
Table Lower Sensor
Open
The paper table goes down below the
sensor, and E-02 is displayed.
Shorted The paper table doesn’t go down.
Platen Cover Sensor
Open
The image is treated using center/edge
erase mode.
Shorted
The master is made normally if the Start
button is pushed twice.
Original Length Sensor
Reflected
light
If paper which should not be detected by
the sensor is set, it will be detected.
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