Canon 220P - imageFORMULA ScanFront Operation Manual page 55

Detailed Settings
Press the [Detailed settings] button to open the Detailed
Settings screen.
Double feed detection by Ultrasonic (Only
Available with the ScanFront 220P)
The scanner uses an ultrasonic sensor to detect when two
or more documents are fed together, and stops feeding
when a double feed is detected.
IMPORTANT
• This method is effective when documents overlap by 50 mm
or more. It does not function if only a slight portion of the
document is overlapping.
• When using the ScanFront 220, the [Double feed detection by
Ultrasonic] setting is set to [OFF].
Double feed detection by length
The scanner detects by document length when two or more
documents are fed together, and stops feeding when a
double feed is detected.
IMPORTANT
• Using the length of the first page of the document as a
reference, the scanner determines a double feed when it
detects a document with a length at least 35 mm longer or
shorter than the reference length.
• Set [Double feed detection by length] to [OFF] when scanning
a document that contains pages of different lengths.
Skip Blank Page
When [Skip Blank Page] is selected in the scanning side
settings, this setting is enabled, and you can adjust the
sensitivity level for skipping blank pages.
Hint
• The initial value for the Skip Blank Page option is set to "90."
• As you lower the value from the default setting, pages of the
document with text become more likely to be skipped as well.
• As you raise the value from the default setting, pages of the
document that are blank become less likely to be skipped.
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