Epson Stylus COLOR 800 Service Manual page 152

EPSON Stylus &2/25 800
‰ Flow Chart 3-1 : The printer feeds paper abnormally.
Start
Does
the PF roller
move when the
printer is turned on?
(CR lock is
released.)
YES
After the printer
power is turned on, the
printer repeats paper feeding
motion and indicates
the fatal error.
YES
NO
Foreign objects are
lodged on the ASF
HP sensor.
YES
Remove the foreign objects.
Is the
NO
operation
normal?
YES
End
END
Replace the MAIN board.
5-6
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Is the
PF motor
NO NO
connector cable
securely connected
to the
CN13?
YES
Is the
NO
resistance of the
PF motor coil
normal?
YES
After
the printer power
NO is turned on, the printer
repeats paper ejecting motion
and indicates
fatal error.
YES
Foreign objects
are lodged on the PF
sensor lever in the upper
paper guide
assembly.
NO
Is the
PE sensor
functioning
normally?
YES
Replace the MAIN
board.
Is the
NO
ASF HP sensor
functioning
properly?
YES
Figure 5-4. Flow Chart 3-1
Connect the connector cable
securly to the CN13.
NO
Is the operation
normal?
Replace the PF
motor.
YES
Is the operation
normal?
NO
Replace the MAIN
board.
NO
is pressed or the printing
operation is activated, the
the
fatal error occurs.
Continues to Figure 5-5 (A).
YES
Remove the foreign objects.
NO Is the
operation
normal?
NO
Replace the PE
sensor.
NO Is the
operation
normal?
Replace the ASF
HP sensor.
Is the
YES
NO
operation
normal?
YES
End
END
If the load button
YES
YES
End
END
Rev. A