Samsung MultiXpress M537x series Service Manual page 272

4. Troubleshooting
b) Check if the connector(SJ10 8340) of the Finisher Exit sensor(S3) is disconnected.
c) Check if the connector(JR10 8320) J7 on the Finisher main board(JC81–07242A) is disconnected.
d) Check if there is continuity in the harness, and if not replace the harness (JR10 8320, SJ10 8340), replace as is
necessary.
e) Replace the Finisher exit sensor(S3,S11).
f) Replace the Finisher main control board(JC81–07242A).
4) Is the Feed Exit Motor(M2) working?
a) Check if the connector(JR10 8320) of the Feed exit motor is disconnected.
b) Check if the connector J5 on the finisher main board(JC81–07242A) is disconnected.
c) Check if there is continuity in the harness, and if not replace the harness (JR10 8320), replace as is necessary.
d) Replace the Feed exit motor(M2).
e) Replace the Finisher main control board(JC81–07242A).
5) Check if there is any object on finisher paper path. Remove it if there is.
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