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CBM1000 Service Manual
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22
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CITIZEN
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Phenomenon Cause Check Method Remedy
Faulty paper sensor Check whether the ER-
ROR lamp flickers
when paper is out.
Replace the sensor PCB
assy.
Foreign substance is
attached to the paper
sensor.
Check whether any for-
eign substances are
adhered to the paper
sensor.
Remove the foreign
substance.
Does not detect
presence of paper.
Faulty connection of the
paper sensor connector
Check connection of the
paper sensor connector.
Connect the connector
correctly.
Faulty paper near-end
sensor
Check whether the ER-
ROR lamp flickers
when paper is out.
Replace the paper near-
end sensor.
Foreign substance is
attached to the paper
near-end sensor.
Check whether any for-
eign substances are
adhered to the paper
near-end sensor.
Remove the foreign
substance.
Does not detect
paper near-end
status.
Faulty connection of the
paper near-end sensor
connector
Check connection of the
paper near-end sensor
connector.
Connect the connector
correctly.
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Phenomenon Cause Check Method Remedy
Faulty connection of the
auto cutter connector
Check connection of the
auto cutter connector.
Connect the connector
correctly.
Faulty DC output volt-
age from the AC
adapter
Check whether the
specified AC adapter is
used.
Use the specified AC
adapter.
Defective auto cutter Measure the supply
voltage with a DC volt-
meter or oscilloscope.
If the supply voltage is
normal, replace the
auto cutter.
The cutter does not
function.
Paper feed failure
(Paper jam)
Check whether or not
the paper is jamming or
torn and caught in the
paper path.
Eliminate unnecessary
paper in the paper path
and set paper properly.
T
If the no-paper condition is not detected while the printer is running out of the recording paper, it
will print without the paper, leading to a trouble of the head, and so on.