Carry out the following solutions.
Clean the transfer rollers around the locations where jam occurs.
Use a paper with short grain.
For duplex printing, print one side at a time (set the sheet that printed side 1 to the same tray again to print the other side).
Switch the paper exit mode to the face-up (normal paper output).
If the problem is not solved with the above, change paper to other that has less paper weight.
Solution for Cause 1
Register the problem paper brand in Custom Paper Settings.
Set 126 [Ppr Fd Sttg for 2 Sd Sml Siz Thckst Ppr] to “1 (Active)”.
This setting lowers the jam frequency by changing the waiting position of preceding sheets. Activating this setting may decrease the productivity by about 20%