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(5) Motor
Step Check Result Remedy
1
Does the LOCK signal switch to H when the machine goes
into standby?
NO
Replace the master
board. Replace the
motor.
2
Does the REM signal of the master board change from H to
L when the motor is turned on?
YES Replace the motor.
NO
Replace the master
board.
Step Check Result Remedy
1
Does the input signal of the master board change from H to L
when the motor is turned on?(The input signal differs depend-
ing on the rotation direction.)
YES Replace the motor.
NO
Replace the master
board.
Step Check Result Remedy
1
Are the relay connector of the motor and the print jack on
the master board correctly connected?
YES
Replace the motor
or the master board.
NO
Connect the con-
nector or the print
jack.
GND
REM
LOCK
2
1
3
4025T526AA
4025T525AA
4025T527AA