Greetings ,
It might be helpful if you can provide a picture of the part. Was the jam on the back of the machine or in the paper tray? If It was in the paper tray. It's probably one the main feed rollers which are attached to the underside of the printer. These grab pages from the tray and feed them into the printer. If the jam was in the back of the printer then it's probably one of the rollers in the duplexer.
~Rick
Bay Area - CA
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