2. Abnormal Paper Feed Operation 1
START
Does
thePF motor
rotate?
NO
YES
When
theprinter is
poweredon, is
paper ejected
automatically?
YES
NO Goto flowchart
2-1.
Is
CN10
connected
correctly?
YES
NO
Isthe
resistance
ofthe PF motor
coilscorrect?
YES
NO
Connect it
correctly.
Isthe
problem
corrected?
NO
END
YES
After
paper is
ejected, doesthe
printer indicate
"Ready"?
YES
NO
After
paper is
ejected, doesthe
printer indicate
"PaperOut"?
YES
NO
Is
something
stuckto the
surfaceof the
PW sensor?
YES NO
Is
something
jammed
betweenthe front/
rear PEsensor
andthe
platen?
YES
Removethe substance
blockingthe sensor.
Isthe
problem
corrected?
NO
END
YES
Does
thesensor
operate
correctly?
Replacethe sensor.
Isthe
problem
corrected?
NO
END
YES
Replacethe C166
MAINboard.
Clear thejam.
Isthe
problem
corrected?
END
YES
NO
YES
Are
CN5and CN6
connected
correctly?
YES
NO Connect them
correctly.
Isthe
problem
corrected?
NO
END
YES
Replacethe
PFmotor.
Replacethe C166
MAINboard.
YES Isthe
problem
corrected?
END
YES
Replacethe C166
MAINboard.
YES
Replacethe sensor.
Isthe
problem
corrected?
NO
END
YES
NO
Does
thefront and
rear PEsensor
operate
correctly?
Does
therelease
sensoroperate
correctly?
NO
YES
NO
Figure 5-3 Flowchart 2
Troubleshooting FX-2170 Service Manual
5-6 Rev. A