Canon imageRUNNER ADVANCE 8085 Maintenance Manual page 58

3
Discard the trim waste into a receptacle.
1
Make sure that the trim waste tray is completely emptied.
4
Return the trim waste tray to its original position and close the front cover of the finisher.
1-46 Staple Finisher-D1/Booklet Finisher-D1/Puncher Unit-BF1/Inner Booklet Trimmer-A1 (Optional)
1. Return the trim waste tray.
Always make sure to insert the trim waste tray far as it can go.
2. Close the front cover of the finisher.