摘要 |
A method of determining document characteristics prior to processing the document (11) in a document scanner (10) includes capturing at least a portion of an input image of documents in an input tray (20); transmitting the images to a processor (65); determining characteristics of the documents; processing the document based on the characteristics; wherein at least one characteristic is document length (70) or width (80) or position or other characteristics; and disabling or enabling ultrasonic zones (160) in at least one location down the document based on at least one characteristic.
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