Canon Finisher-AB1 Service Manual page 340

Chapter 4
6) Slide the folding roller (upper) [1] in the direction
of the arrow.
[1]
F-4-178
7) Remove the folding roller (upper) [1] in the
direction of the arrow.
[1]
F-4-179
8) Remove the C-ring [1] and the gear [2].
F-4-180
4-46
9) Remove the C-ring [1] and the ball bearing [2]
found at the rear of the saddle unit.
10) Shift the shaft [1] found at the front of the folding
roller (lower) to the hole above.
11) Remove the folding roller (lower) [1] in the
direction of the arrow.
[2]
[1]
F-4-181
F-4-182
[1]
F-4-183
[1]
[2]
[1]