Canon imageRUNNER C3220 Copying Manual page 268

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6-22 Area Designation
Press [Pen Entry].
Press [Start Scan].
Scanning starts.
IMPORTANT
Confirm that the original is placed on the platen glass.
Designate the area using the edit pen.
If you designate a point outside the permitted area, a message appears to inform
you that the specified position is not acceptable.