Samsung CLX-8640 series Service Manual page 345

3) Is the ejector motor (M7) working?
a) Check if the connector(SJ10 8310) of ejector motor(SJ10 4143) is disconnected.
b) Check if the connector(SJ10 8310) J6 on the finisher main board(JC81–07242A) is disconnected.
c) Check for continuity in the wire harness and whether the harness is damaged(SJ10 8310), replace it if required.
d) Replace the ejector motor(M7).
e) Replace the Finisher main board(JC81–07242A).
4) Can you hear the sound that the ejector driving belt is jumping during operation?
a) Check if the ejector motor bracket(SJ10 4204) assembly is fasten on compiler bottom frame by screw.
5) Check if the tooth of gears(SJ10 4304) are broken. Replace the broken gears.
6) Replace the ejector unit(JC81-03773C).
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4. Troubleshooting
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