Faulty Feeding Of Recording Paper - Citizen iDP3240 Service Manual

5.2.3 Faulty feeding of recording paper

Phenomenon
Recording paper Improper connection of
is not fed. Or motor connector.
feeding is
disturbed.
Improper mounting of
control board.
Improper attachment of
platen roller.
Improper attachment
and connection of
thermal head.
Improper feeding of
recording paper.
Foreign matter has
penetrated into the gear
section.
Gear is broken.
Supplied voltage is low.
Motor is defective.
Cause
Improper power supply.
Check Method
Check the state of the
connection of the
connector.
Check if designated AC
adapter is used.
Check the mounting of
the control board and
the condition of its
connections.
Check the attachment of
the platen roller.
Check the mounting and
connection of the
thermal head and the
control board. Check
the wire springs for
deformation or warp.
Check if the recording
paper is jammed, torn or
trapped in the paper
supply path.
Detach the platen roller,
and check if foreign
matter is trapped in the
platen gear or motor
gear.
Detach the platen roller,
or check if the platen
gear or motor gear is
broken.
Check the supplied
voltage using a tester.
Use a tester or an
oscilloscope to measure
voltage.
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iDP3240 SERVICE MANUAL
Repair Method
Connect the connector
correctly.
Use designated AC adapter.
Mount the control board
correctly.
Attach the platen roller
correctly.
Connect the thermal head to
the control board correctly.
Replace a deformed wire
springs.
Remove unnecessary
recording paper and place
paper correctly in the printer.
Remove foreign matter.
Replace broken platen gear. If
the motor gear is broken,
replace the motor.
Operate using a voltage
within the prescribed range.
If the voltage is correct,
replace the motor.