Canon Image Formula P-215 - Manual (Page 92)

92
When you want to match the orientation of images to the
text when scanning a mixture of pages with different text
orientations
Select the [Text Orientation Recognition] check box. The text
orientation on each page is detected, and the scanned image is
rotated in 90-degree increments to correct the orientation.
Hint
When the [Text Orientation Recognition] check box is selected,
[Document Orientation] is unavailable.
When you want to detect multiple pages fed at the same
time
Select the [Double Feed Detection] check box.