Service manual

Troubleshooting
EPSON FX-880/FX-1180 Service Manual
5-9
START
Are connectors on
the C229 MAIN board
connected securely?
Secure the
connectors.
Is the
problem
solved?
END
NO
YES
NO
YES
Is the CR guide
shaft obstructed,
or the CR timing
belt broken?
Remove the
obstruction or
replace the belt.
Does the carriage
stop after moving to
the right or left
margins?
Check the HP
sensor and
replace if
defective.
Replace the CR
motor.
Check the CR motor driver
on the C229 MAIN board,
and replace the board if
defective. (See Table 5-5.)
Are the CR motor
coils defective?
(See Table 5-3.)
Is the
problem
solved?
Is the
problem
solved?
Is the
problem
solved?
NO
NO
NO
YES
YES
YES
NO
NO
NO
YES
YES
YES
Flowchart 2. Abnormal Carriage Operation
ABNORMAL CARRIAGE
OPERATION