Citizen PMU2300III Series Service Manual page 40

PMU2300III Series Service Manual
● Faulty Sensor
Phenomenon
Paper presence or
absence cannot be
detected.
Paper near end cannot
be detected.
Paper cannot be fed
correctly.
Presenter error
The paper return sensor
is not activated.
● Auto Cutter Failure
Phenomenon
The auto cutter does not
operate.
Cause
The presenter sensor or paper
return sensor is faulty.
The paper sensor is faulty.
The paper near end sensor is
faulty.
The sensor has fouling.
Any of the connectors is not
connected correctly.
Cause
The connector has a bad
connection.
The auto cutter is faulty.
Paper feed is faulty.
(paper jams)
Check Method
Paper cannot be ejected.
Operation of the paper
returning section is faulty.
Check if the ERROR LED
lights up when the paper
ends.
Check the sensor for fouling. Remove fouling.
Check the connecting
condition of the connectors.
(CN108, CN107, CN502)
Check Method
Check the connecting
condition of the connector
(CN104).
Measure the supply voltage
with a tester or oscilloscope.
Check if paper is jammed,
torn or caught in the paper
path.
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Remedies
Replace "SA, SENSOR".
Replace "UNIT,
MECHANISM".
Replace "SA PNE SENSOR".
Connect the connectors
correctly.
Remedies
Connect the connector
correctly.
If the supply voltage is normal,
replace the auto cutter with a
new one.
Remove unnecessary paper
and set the paper correctly.