When your printer says that there’s a paper jam and there isn’t, chances are it’s because there’s a mechanical problem afoot. Often times, real paper jams could leave residue behind. This residue could interfere with printer operation long after the jam is gone.
Small amounts of shredded paper can get lodged between gears that move your rear duplexer. This may leave your printer thinking there’s something stuck in the duplexer, not the gear. Examine the mechanical parts surrounding your ghost jam and make sure they operate cleanly (some models give you a more precise idea where the jam is located).
If you’re still getting an error message, give us a call. We would be happy to come out and take a look.