Instruction Manual (pdf)

89
Chapter 4 Operating Procedures
Double feed detection by Ultrasonic
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 1.97"
(50 mm) or more. It does not function if only a slight portion of
the document is overlapping.
• When [Scanning Side] is set to [Folio], [Double feed detection
by Ultrasonic] is grayed out and cannot be selected.
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 1.38" (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.
Non Separation Feeding Mode
Set [Non Separation Feeding Mode] to [ON] or [OFF] according
to the feed method of the document. (See p. 44.)
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.