Canon imageRUNNER ADVANCE 8085 Maintenance Manual page 140

5
Remove all of the jammed and protruding staples from the staple cartridge.
2
6
Return the bracket on the staple case to its original position.
7
Gently push the staple case back into the stapler unit until it is securely in place.
Always make sure to insert the staple case far as it can go.
8
Close the front cover of the finisher.
2-64 Clearing Staple Jams