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1. Abnormal CR Operation
START
When
the printer is
powered on, does
the CR motor
rotate?
Is CN11
connected
correctly?
Connect
CN11
correctly.
Is the
problem
corrected?
NO
YES
Does
the CR motor
stop during or after
initialization?
When
you move the CR
manually with the
power off, does it
move freely?
YES
YES
Is the
platen gap
adjusted
properly?
NO
YES
Adjust the gap properly.
Refer to Chapter 4.
Is the
problem
corrected?
NO
NO
NO
NO
Replace the oil pad mounted on
the CR assembly. Clean the CR
shaft, and lubricate the oil pad
and the surface of the CR shaft.
Is CN4
connected
correctly?
Connect CN4
correctly.
Is the
problem
corrected?
NO
NO
Does the
HP sensor work
correctly? See
Table 5-2.
Replace the
HP sensor.
NO
Is the
problem
corrected?
END
YES
YES
YES
NO
END
YES
YES
Is the
resistance for
the CR motor correct?
See Table 5-3.
Replace the
CR motor.
NO
Is the
problem
corrected?
NO
END
YES
YES
Replace the C166
MAIN board.
Check the resistance
of the motor coils.
See Table 5-3.
Is it
OK?
NO
Replace
the CR
motor.
Replace the
C166 MAIN
board.
END
NO
YES
YES
YES
END
Figure 5-2 Flowchart 1
FX-2170 Service Manual Troubleshooting
Rev.A 5-5