Canon Perfect Binder A1 Troubleshooting Manual page 77

2) Remove the Rear Cover.
- Screw x6
3) Removing Inner Cover (Lower)
3-1) Pull out the Waste Basket, and take out the Waste Paper Box.
3-2) Release the lock of the Book Stacking Assembly, and pull out the Book Stacking Assembly.
3-3) Pull the jam clear knob. Releasing the 3 jam clear levers, remove the Inner Cover (Lower).
- Screw x9
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