Canon imageRUNNER ADVANCE 8105 Series Manual page 10

4) Change the position[a] of hooking the spring of the separation roller from the one shown in the photo [A]
to [B]. This change would lower the pressure of the separation roller applied to the feed roller to enhance
the separation capability to the multi-feed sheets.
5) Reassemble the parts from the step 3) in reverse order.
6) Make test copies by having the machine pick up from the option deck to see if a jam and the like would not
occur.
pg. 10