4-6
Chapter 4 Other Functions
■
Skew Detection
If a long document page becomes skewed as it is fed, the
page may press against the edge of the feed inlet or
transport path and be damaged.
When the scanner detects that a skewed page is contacting
the edge of the transport path, an error message is
displayed and transport stops.
IMPORTANT
• A page that becomes skewed while it is fed is only detected by
the sensors as skewed if it contacts the edge of the transport
path during scanning.
• Note that the ISIS/TWAIN driver has a Deskew function that
can detect a skewed document from the scanned image, and
straighten it.
■
Staple Detection
When sensors at both sides of the feed inlet detect the bent
corner of a stapled document, an error message appears
and feeding stops.
IMPORTANT
• Staple detection detects the bent corner that occurs when one
of the four corners of a document has been stapled.
• Staple detection may not operate properly in the following
cases where bending does not occur in documents.
– The document is stapled at two or more corners.
– The document is size smaller than STMT/A5.
– The position of the left or right document guide has been
changed, and the document has been shifted to the left or
right side.
(See “Adjusting the Document Guides” on p. 3-8.)
Hint
• Staple detection is controlled in the ISIS/TWAIN driver, and
the detection level can be set in the User Mode.
Detection Level Setting” on p. 4-10.)
• Staple detection for the Count-Only mode can be set in the
User Mode.
(See “Staple Detection Setting” on p. 4-10.)
■
Folio Scan
Use Folio Scan to scan very large documents (up to 22" ×
34"/A1 size) by folding each document sheet and scanning
the front and back. The resulting images are then
recombined to reconstruct an image of the entire page.
IMPORTANT
• Folio scanning requires that you feed each page manually
(The Separation Off key is lit).
• Fold each page with a sharp, straight crease. Otherwise, the
paper may jam or the image may be misaligned.
Reconstructed Image
Separation
Off Key
Front
(when
folded)
Back
(when
folded)
