CBM1000 Service Manual
– 21 – CITIZEN
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Phenomenon Cause Check Method Remedy
Faulty connection of the
motor connector Check connection of the
motor connector. Connect the connector
correctly.
Defective motor Measure the supply
voltage with a DC volt-
meter or oscilloscope.
If the supply voltage is
normal, replace the mo-
tor.
Faulty DC output volt-
age from the AC
adapter
Check whether the
specified AC adapter is
used.
Use the specified AC
adapter.
Low DC output voltage
from the AC adapter Check the DC voltage
with a DC voltmeter. Supply the specified AC
voltage to the AC
adapter.
Faulty control PCB assy Replace the control PCB
assy.
Faulty mounting of the
platen roller Check mounting condi-
tion of the platen roller. Mount the platen roller
properly.
Paper feed failure 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.
Foreign substance in
the gear Remove the gear holder
and check for any for-
eign substance caught
in the gears.
Eliminate the foreign
substance.
Paper is not fed or
fed irregularly
Broken gear Remove the gear holder
and check for any
breakage of the gears.
If the gear is broken,
replace it with new one.