I don't think I've had J83 before:
J83 STPES Paper jam at the siding drum (DF-650) When the sub tray paper ejection sensor (STPES) does not turn Off within 1000ms of its turning On. 1000ms 1000ms Sim 241 for STPES 1) Worn or dirty siding drum, 2) Defective STPES.
=^..^=
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