Canon 2417B002 User Manual - Page 114

Deskew] Check Box, Moire Reduction, Folio], None], High-Speed Moire Reduction]

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Hint • When the [Scan Options] on the [Basic] tab sheet is set to [Scan Single Page] for the TWAIN driver, the scanning side is set to [Simplex] and cannot be changed. (See "[Scan Options] (TWAIN driver only)" on p. 8-9.) • Selecting [Skip Blank Page] enables the [Setting] button, which opens the [Blank Skip Setting] dialog box. • Adjust the [Content density] setting in the [Blank Skip Setting] dialog box if you specify [Skip Blank Page], but blank pages are not skipped, or if non-blank pages are skipped. • Adjust the content density according to the document content. - When blank pages are not skipped, increase the content density. - When non-blank pages are skipped, reduce the content density. • If the application program provides its own simplex/duplex scanning side setting, select Simplex for this setting. [Folio] Documents that are normally folded in half are scanned on both sides and then composed into one image. (See "Folio Scan" on p. 4-7.) Hint When [Folio] is not displayed, the batch separation setting on the [Others] tab sheet is set to [Patchcode] (Optional). (See "Batch Separation" on p. 8-20.) Chapter 8 ISIS/TWAIN Driver Settings [Deskew] Check Box The Deskew function detects slanted document pages and straightens the scanned images. IMPORTANT The Deskew function does not work properly in the following situations. Disable the Deskew function in these cases. • When scanning a page with a dark area near the edge of the page • When scanning a glossy or reflective document • When the brightness setting is incorrect • When the Custom setting is selected in the Gamma Settings dialog box Moire Reduction This setting is enabled when the resolution is set to 300 dpi or lower. Use Moire reduction if the Moire (a shimmering, wavy pattern) effect appear in scanned images. Hint [High-Speed Moire Reduction] is displayed when the resolution is set to 240 dpi or lower. [None] No moire processing is performed. [High-Speed Moire Reduction] This mode gives priority to scanning speed, and generates images with the specified resolution from images scanned at 300 dpi. [High-Quality Moire Reduction] This mode gives priority to image quality, and generates images with the specified resolution from images scanned at 600 dpi. 8-8

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8-8
Chapter 8
ISIS/TWAIN Driver Settings
Hint
•
When the [Scan Options] on the [Basic] tab sheet is set to
[Scan Single Page] for the TWAIN driver, the scanning side is
set to [Simplex] and cannot be changed.
(See “[Scan Options]
(TWAIN driver only)” on p. 8-9.)
•
Selecting [Skip Blank Page] enables the [Setting] button,
which opens the [Blank Skip Setting] dialog box.
•
Adjust the [Content density] setting in the [Blank Skip Setting]
dialog box if you specify [Skip Blank Page], but blank pages
are not skipped, or if non-blank pages are skipped.
•
Adjust the content density according to the document content.
–
When blank pages are not skipped, increase the content
density.
–
When non-blank pages are skipped, reduce the content
density.
•
If the application program provides its own simplex/duplex
scanning side setting, select Simplex for this setting.
[Folio]
Documents that are normally folded in half are scanned on
both sides and then composed into one image.
(See “Folio
Scan” on p. 4-7.)
Hint
When [Folio] is not displayed, the batch separation setting
on the [Others] tab sheet is set to [Patchcode] (Optional).
(See “Batch Separation” on p. 8-20.)
[Deskew] Check Box
The Deskew function detects slanted document pages and
straightens the scanned images.
IMPORTANT
The Deskew function does not work properly in the
following situations. Disable the Deskew function in these
cases.
•
When scanning a page with a dark area near the edge of the
page
•
When scanning a glossy or reflective document
•
When the brightness setting is incorrect
•
When the Custom setting is selected in the Gamma Settings
dialog box
Moire Reduction
This setting is enabled when the resolution is set to 300 dpi
or lower. Use Moire reduction if the Moire (a shimmering,
wavy pattern) effect appear in scanned images.
Hint
[High-Speed Moire Reduction] is displayed when the resolution
is set to 240 dpi or lower.
[None]
No moire processing is performed.
[High-Speed Moire Reduction]
This mode gives priority to scanning speed, and generates
images with the specified resolution from images scanned
at 300 dpi.
[High-Quality Moire Reduction]
This mode gives priority to image quality, and generates
images with the specified resolution from images scanned
at 600 dpi.