Canon imageRUNNER ADVANCE C255 Series, Service Manual, Page: 252 / 987

■ Installation
1.
When assembling the Main Drive Unit, make sure to align one of 3 protrusions of the cam [2] on machine's side to the top
position and then assemble it. If the position is not aligned, the Main Drive Unit [1] and cam [2] on machine's side may fail
to properly assemble to cause the connection failure.
Also, check to make sure that there is no gap between the Rear Plate [A] and the plate [B] of the Main Drive Unit [1].
If there is a gap, make sure to align one of 3 protrusions of the cam [2] on machine's side to the top position and then assemble
it.
[1]
[1]
[A]
[A]
[B]
[B]
[2]
[2]
2. Check that there is no gap and then secure using 6 screws in the order indicated by the illustration below.
6x
● Actions after assembly
Execute Auto Correct Color Mismatch.
Settings/Registration > Adjustment/Maintenance > Adjust Image Quality > Auto Correct Color Mismatch
Removing the Hopper Unit (Y/M/C/Bk)
■ Preparation (for the Hopper Unit (Y/M/C))
1. “Removing the Rear Cover 1” on page 140
2. “Removing the Left Upper Cover” on page 144
4. Parts Replacement and Cleaning
241