Jam 31 on Bizhub C754 with FS-535 Finisher

[t85ster]

Just refurbed this C754 we got in from an auction, and upon connecting the FS-535 and powering up for the first time, Jam 31. No paper or dust at PS-1 (finisher entry detection sensor). Nothing showing in the machine's Jam Log! We don't know if this machine had this problem before we got it in, or if its something new. Machine boots up and runs OK with no finisher attached.

[t85ster]

Oops! Never mind. Found lower finisher entry guide plate was shifted to the rear a very slight amount, just enough to block PS1 if you even breathed on it.
Must have got bent in shipment. Thanks anyway!