Canon iPF6100 Service Manual page 330

Chapter 4
3) Turning the motor pulley[1] in the arrow direction, move the cutter[2] about 2cm to the right of the left most end.
4) Remove the screw[1] and clamp[2] and slide cutter unit[3] to left obliquely upward out of position.
4-22
[1]
[2]
F-4-43
[2]
[1]
F-4-44
[3]