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Chapter 9 Operational Settings
181
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Appendix
Introduction
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How to Use
ScandAll PRO
Scan Pa-
rameters
Various
Documents
Daily Care
Trouble-
shooting
Operational
Settings
Consumables
Scanner
Overview
Check Overlapping
(Ultrasonic)
Detects multifeeds by checking for
document overlapping.
When this option is selected, the following
two more detection options can be set:
• You can specify the multifeed detection
range by the length from the leading
edge of document. Go to "Specifying the
Multifeed Detection Range [Document
Check Area Specification for Multifeed
Detection]" (on page 182).
• If two or more sheets of paper of the
same size are stuck on the same
position of the document, you can
cancel the Multifeed Detection for that
area. Go to "Bypassing Multifeed Detec-
tion for a Fixed Format" (on page 110).
Check Length Detects multifeeds by monitoring the differ-
ence of the document length.
Check Overlapping
and Length
Detects multifeeds when both [Check
Overlapping(Ultrasonic)] and [Check
Length] are selected.
Length Select 10, 15, or 20 mm as the document
length difference, which is to be considered
as a Multifeed, when [Check Length] is
selected. If the detected document length
does not reach the selected length, it will be
recognized just as an error, and thus will not
be recognized as a multifeed.
Detection Method Description • When scanning documents of different lengths
together in the same stack, select [Checking Overlap-
ping(Ultrasonic)].
• If something like a stamp, memo or photo is glued to
the document, specifying [Checking Overlap-
ping(Ultrasonic)] may wrongly detect the glued section
as an overlap error. When scanning such a document,
select [Checking Length] instead. Note you can also
select [Checking Overlapping(Ultrasonic)] by limiting
the detection range.
You can also use the scanner driver to configure the
settings above. In this case, the settings in the scanner
driver are given a priority.