Sharp mxm365n jamming when duplexing

[mommok]

we have had an reacquiring issue on the MXM365N with RB-22 and FN-11. The issue is jamming when duplexing. no jams when simplex. Over the course of the issues we have had a few where the fix was replacing the fuser and/or the solenoid on the rb-22. jams are generally showing as appd1_n jams. The issue and fix seam random. Has anyone else come across this issue and what have you done to fix the issue.

[guitar9199]

Had something very similar on an MX-3110. Turned out to be the Bridge unit wasn't installed correctly, causing the paper to be a little delayed when duplexing. It never affected single sided copies/prints though.

Remove and re-mount the Paper pass (Bridge/Buffer) unit and see if that makes a difference.