Cause
An insufficient force of transferring thick papers causes a high frequency of jams (particularly J080, J085, and J086).
Paper with 215.9 mm or less in length locks the paper exit junction gate [B] during waiting [A] for duplex after printing Side 1, and the subsequent sheets produce J036 and J085.
This is likely to occur if:
Transfer roller is dirty.
Using paper having high rigidity for bending/folding, regardless of paper weight.
Transferring the paper with long grain.
