Canon i-SENSYS MF4300dn Service Manual page 48

Chapter 3
Points to Note at Attaching
Be sure to fit the gear [1] of the belt with the gear [2] on the bottom surface
of the contact sensor unit.
[1] [2]
6) Disconnect the connector [1].
[1]
7) Turn the contact sensor [1] in the direction shown by the arrow, remove
the 2 shafts [2], and then remove the contact sensor [1].
[2]
3-6
[1]
[2]
[1]
F-3-18
F-3-19
[1]
F-3-20