Canon imageRUNNER ADVANCE C3500 III Series Service Manual page 1161

7.
NOTE:
Open the DADF before removing the Reader Cable Cover
if closed.
8.
3x
NOTE:
The removed parts will be used in step 8, "In the case of
Reverse ADF" of "Installing the Relay PCB".
9.
2x
1x
NOTE:
The removed screws will be used in step 6, "In the case
of Reverse ADF" of "Installing the Relay PCB".
10.
4x
1139
9. Installation
2x