Canon Finisher-AB1 Service Manual page 320

Chapter 4
3) Turn the coupling (front) [1] so that the screw is at
the front; then, loosen the screw, and shift the
coupling (front) to the right.
F-4-99
4) Shift the transport belt release unit [1] toward the
rear so that the transport belt is not engaged.
F-4-100
4-26
[1] [2]
[1]
5) Release the roll guide [1], and detach the transport
roll [2] from the shaft together with the belt.
[1]
F-4-101
6) Detach the transport belt (rear) [1] by moving it
through the coupling.
[1]
F-4-102
7) If the transport belt at the front must be detached,
perform steps 8) and 9) at the front. (page 5-
17)Reference[Adjusting the Transport Belt
Position]
[2]