Troubleshooting - Epson Stylus COLOR 800 Service Manual

‰ Flow Chart 2 : CR moves abnormally.
Start
Does
the CR move
NO
when the printer is
turned on?
YES
Does
abnormal
NO
noise occur after the
printer is turned
on?
YES
Does
abnormal
NO
noise and fatal
error occur while
turning on the
printer?
YES
NO
Is the CR
lock lever released?
Rev. A
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Fatal error
occurs when the
printer is turned
on.
Does the
CR leaves the
home position and
stops then the fatal
error occurs?
YES
Is the
Connect the HP
HP sensor NO
connector securly
sensor connector
connected to the
cable to the CN6.
CN6?
YES
NO
operation
Is the
NO
cap assembly in
an abnormal
condition?
NO
YES
Is the
Replace the cap
operation
assembly or reinstall it.
normal?
YES
Does the PF
motor rotate?
End
END
NO
Is the PF
motor connector
Connect the connector
cable securly
cable to the CN13.
connected to the
CN13?
YES
Is the
NO
resistance of the
Replace the PF
PF motor coil
motor.
normal?
YES
Replace the MAIN
board.
Figure 5-3. Flow Chart 2
Is the
CR motor
NO
Connector cable
Connected to
the CN12?
Connect the CR motor
connector cable to the
YES
CN12 properly.
Is the
NO
resistance of
the CR motor
coil correct?
Replace the CR
YES
motor.
Is the
YES
normal?
Release
the CR lock lever
with the printer
power off. Does the CR
manually move
smoothly?
NO
Oil the CR or clean
the CR shaft.
Is the
YES
NO
operation
normal?
Is the YES
NO
operation
normal?
End
END

Troubleshooting

Is the
operation
normal?
NO
Is the
operation
normal?
NO
Replace the MAIN
board.
Are
there foreign
YES
objects between
Remove the foreign
sensor
the HP
objects.
terminals?
NO
Is the
NO
operation
normal?
Is HP
NO
Replace the HP
sensor normaly
sensor.
functioning?
YES
Is the
NO
operation
normal?
NO
Replace the MAIN
board.
YES
YES
YES
YES
End
END
5-5