Canon MX450 Series Online Manual page 322

Loading Two or More Originals on the platen glass
In the scan mode,
- select Auto scan for Document type to scan two or more printed photos, postcards, or business cards
- select Photo for Document type and specify Auto scan(A) -Multi for Scan size to scan two or more originals
Scan two or more printed photos, postcards, or business cards with a software application on a computer
Load two or more originals WITH THE SIDE TO SCAN FACING DOWN and place them at least 0.4 inches (10 mm) away
from the edges of the platen glass and at least 0.4 inches (10 mm) apart from each other.
(A) 0.4 inches (10 mm)
Note
The Skew Correction function automatically compensates for the originals placed at an angle of up to approximately
10 degrees. Slanted photos with a long edge of 7.1 inches (180 mm) or more cannot be corrected.
Non-rectangular or irregular shaped photos (such as cut out photos) may not be scanned properly.
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