Canon Perfect Binder A1 Troubleshooting Manual page 154

5) Pull out the trim waste unit.
6) Release the lock of stacker to pull it out.
7) Remove the Jam removal knob, and remove the Inner cover (Lower) with the 3 Jam removal levers released.
- 9 screws
[ Caution]
To remove the Inner cover (Lower), lift it so that the stopper is not stuck.
8) Turn on the front right cover switch and the front left cover switch by inserting the service tool or the like.
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