Canon imageRUNNER ADVANCE 8105 Series Manual page 178

Attach the new brown spring by following the steps below.
1) Remove the rear cover of the professional puncher-C1, and free the harness [1].
- 1 connector [2]
- 1 wire saddle [3]
- 1 rubber bush [4]
2) Remove back gage unit [1].
- 3 screws [2]
- 2 spacers [3]
pg. 178