Epson TM-FX2180 Service Manual page 43

EPSON FX-2180 Service Manual
Table 3-8. Repairing the Printer Mechanism (Continued)
Problem Symptom
Printing is Platen
uneven (lighter parallelism is
or darker on the not adjusted
left side of the properly.
page than on
the right side).
Printing is too The platen gap
light. is too wide.
The print head
is defective.
The print head
drivers on the
main board are
bad.
Cause Checkpoint
Check the
platen
parallelism.
(See Chapter 5.)
Check the
platen gap. (See
Chapter 5.)
Check if the tips
of the dot wires
are worn.
Check the print
head drivers on
the main board.
(See Table 3-7.)
Table 3-8. Repairing the Printer Mechanism (Continued)
Solution Problem
Adjust the Paper The PF motor
platen feeding is does not rotate
parallelism. abnormal. at all.
(See
Chapter 5.)
Adjust the
platen gap.
(See
Chapter 5.)
Replace
the print
head.
Replace
the main
board.
When you turn
on the printer,
it ejects the
paper
automatically
and then
indicates it is in
the ready
state.
Chapter 3 Troubleshooting
Symptom Cause
The PF motor is
defective.
CN10 is not
properly
connected to the
main board.
The front or rear
PE sensor is
defective.
The front or rear
PE sensor is not
installed
correctly.
Foreign material
is stuck on the
TOP sensor.
The TOP sensor
is defective.
Checkpoint Solution
Measure the coil Replace
resistance of the the PF
PF motor. It motor.
should be
approx. 16.1 .
(See Table 3-3.)
Check the Connect
connection. CN10.
Check the Replace
operation of the the front or
front and rear PE rear PE
sensors. sensor.
(See Table 3-2.)
Check the front Install the
and rear PE front and/or
sensor rear PE
connections. sensor
correctly.
Check the TOP Remove
sensor. any foreign
material
from the
TOP
sensor.
Check the Replace
operation of the the TOP
TOP sensor. sensor.
(See Table 3-2.)
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