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2. Abnormal Paper Feed Operation 1
START
Does
the PF motor
rotate?
NO
YES
When
the printer is
powered on, is
paper ejected
automatically?
YES
NO
Go to flowchart
2-1.
Is
CN10
connected
correctly?
YES
NO
Is the
resistance
of the PF motor
coils correct?
YES
NO
Connect it
correctly.
Is the
problem
corrected?
NO
END
YES
After
paper is
ejected, does the
printer indicate
"Ready"?
YES
NO
After
paper is
ejected, does the
printer indicate
"Paper Out"?
YES
NO
Is
something
stuck to the
surface of the
PW sensor?
YES
NO
Is
something
jammed
between the front/
rear PE sensor
and the
platen?
YES
Remove the substance
blocking the sensor.
Is the
problem
corrected?
NO
END
YES
Does
the sensor
operate
correctly?
Replace the sensor.
Is the
problem
corrected?
NO
END
YES
Replace the C166
MAIN board.
Clear the jam.
Is the
problem
corrected?
END
YES
NO
YES
Are
CN5 and CN6
connected
correctly?
YES
NO
Connect them
correctly.
Is the
problem
corrected?
NO
END
YES
Replace the
PF motor.
Replace the C166
MAIN board.
YES
Is the
problem
corrected?
END
YES
Replace the C166
MAIN board.
YES
Replace the sensor.
Is the
problem
corrected?
NO
END
YES
NO
Does
the front and
rear PE sensor
operate
correctly?
Does
the release
sensor operate
correctly?
NO
YES
NO
Figure 5-3 Flowchart 2
Troubleshooting FX-2170 Service Manual
5-6 Rev. A