Canon Paper Folding Unit-J1 Service Manual page 26

2. Paper feeding operation
Feeds the paper by a specified time after the paper has passed through the folding position sensor (S32).
3. Folding operation
Gives the paper a first fold by the folding roller 1 and folding roller 2 as the paper bumps against the trailing edge stopper.
Gives the paper a second fold by the folding roller 2 and folding roller 3 and leading edge pushing guide as the paper bumps
against the leading edge stopper.
Trailing edge stopper
Folding roller 2
Leading edge stopper
Folding roller 2
20
S32
Folding position
sensor
Folding roller 1
Leading edge pushing guide
Folding roller 3
2. Technical Explanation