Abnormal Paper Feeding - Epson TM-FX2180 Service Manual

EPSON FX-2180 Service Manual
1. Abnormal Carriage Operation
START
When you turn on
NO
the printer, does the CR
motor rotate?
YES
NO
Does the CR motor
stop during or after
initialization?
YES
When you
move the CR by hand
with the printer off, does
it move freely? NO
YES
Is the platen gap
adjusted properly?
Is CN4 connected
properly? Replace the oil pad on the
NO
YES
Connect CN4.
NO
Is the problem
solved?
Does the HP sensor
NO
work correctly?
See Table 3-2.
Replace the
HP sensor.
YES
NO
Is the problem
A
Figure 3-3. Flowchart 1
NO
Is CN11 connected
Connect CN11.
properly?
YES
Check the CR motor NO
Is the problem
coil resistance.
solved?
See Table 3-3.
YES NO
Is it OK?
END
Replace the main Replace the CR
board. motor.
END
NO
Adjust the platen gap.
YES
See Chapter 5.
NO
Is the problem
carriage unit. Clean and
solved?
lubricate the CR shaft.
A
END
Is the resistance of
YES
the CR motor correct?
See Table 3-3.
END
Replace the
YES
NO
Is the problem
Replace the main
YES
board.
solved?
END

2-1. Abnormal Paper Feeding

YES
ready after the paper is
YES
material stuck on the
Remove the
YES
substance
blocking the
TOP sensor.
END
Is the
problem
solved?
NO
END
CR motor.
solved?
YES
END
START
Is CN10
NO
Does the PF
connected
motor rotate?
properly?
YES
YES
Is paper
NO
ejected automatically See Flowchart
when you turn on the
2-2.
printer?
YES
Is the resistance of the
PF motor coils correct?
See Table 3-3.
Does the
NO
printer indicate it is
ejected?
Replace the
main board.
YES
Is foreign
NO
Does a paper out
TOP sensor? error occur after the
paper is ejected?
Does the
YES
TOP sensor work
properly?
Is foreign
material jammed
NO
between the front
or rear PE sensor
and the platen?
NO
Replace the
YES
TOP sensor.
Remove the
YES
foreign material.
Is the
NO
problem
solved?
NO
Is the
problem
YES
Replace the solved?
main board.
YES
END
END
Figure 3-4. Flowchart 2-1
Chapter 3 Troubleshooting
NO
Connect CN10.
NO
Is the problem
solved?
YES
END
NO
Replace the PF
motor.
YES
NO
Is the problem
solved?
YES
END
YES
NO
Are CN5 and
NO
CN6 connected
properly?
Connect CN5
YES
and CN6.
Do the
YES
front and rear NO Is the
PE sensors work problem
correctly? solved?
YES
NO
END
Replace the defective
PE sensor.
Is the NO
problem
solved?
YES
END
Replace the main
board.
3-5