The Content density should be adjusted according to document content, so that only blank pages are skipped: increase the setting if they are not skipped, and decrease the setting if non-blank pages are skipped.

The Skip Blank Pages function may not work properly if the [Custom] setting is enabled in the Gamma Settings dialog box.

When the [Scan Single Page] scanning option is selected in the [Basic] tab sheet of the TWAIN driver, the [Simplex] scanning side setting is selected automatically.

If the application program provides its own simplex/duplex scanning side setting, select Simplex in this dialog box.

[Deskew] Check Box

The Deskew function detects slanted document pages and straightens the scanned images.

The Deskew function does not work properly in the following situations. Disable Deskew in these cases.

When scanning a page with a dark area near the edge

When scanning a glossy or reflective document

When the brightness setting is incorrect

When Custom setting is selected in the Gamma Settings dialog box

Note that in other cases, depending on the document, the slant of the image may not be corrected properly or part of the image may be omitted.

Moire Reduction

When 300 dpi or lower resolution is selected, you can enable Moire reduction if Moire patterns appear in scanned images.

[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. When 300 dpi resolution is selected, [High-Speed Moire Reduction] is not displayed.

[High Quality Moire Reduction]

This mode gives priority to image quality, and generates images with the specified resolution from images scanned at 600 dpi.

Although image quality is high, scanning is slow.

When [High Quality Moire Reduction] is selected while Page Size is set to [Auto-detection], Mode is set to [24-bit Color], and Scanning Side is set to [Duplex] all at the same time, a portion of the document may not be scanned due to insufficient memory on the scanner. If this occurs, lower the image quality by selecting [Speed priority], or change the Scanning Side setting to [Simplex].

70Chapter 3