Canon MX870 Series User Manual page 511

Place the right half of the document face-down on the Platen.
8.
Click Scan.
9.
The right half of the document is scanned.
Note
Click Cancel to cancel the scan.
Adjust the scanned image as required.
10.
Use the icons to swap the left and right halves, rotate the image 180 degrees or enlarge/reduce the
image.
(Swap Left & Right)
Swaps the left and right halves.
Important
This function is not available while the image is enlarged/reduced.
Rotate 180°
Rotates right half of the image 180 degrees.