Canon imageRUNNER ADVANCE 4551i Service Manual page 990

4.
1x
1x
NOTE:
The removed screw will be used in step 5.
5.
NOTE:
Use the screws removed in steps 3 and 4.
1x
3x
6.
CAUTION:
• Be sure to insert the Main Controller PCB 1 until it
stops.
• Be sure to push [A] part hard to install it, otherwise
the connector may not be connected properly.
[A]
1x
1x
977
9. Installation