Canon LiDE 700F manual Scan Settings Dialog Box 128 of 308 pages, Scanning Resolution

Scan Settings Dialog Box Page 128 of 308 pages

Important

When you select Auto Detect, the image may not be scanned at the correct position and size. In that case, change the size to the actual document size (A4, Letter, etc.) and align a corner of the document with the corner at the arrow of the Platen.

Scanning Resolution

Select the resolution at which to scan documents. The following scanning resolutions can be specified:

When Document Type is other than film: 75 dpi / 100 dpi / 150 dpi / 200 dpi / 300 dpi / 400 dpi / 600 dpi

When Document Type is film: 300 dpi / 400 dpi / 600 dpi / 1200 dpi / 2400 dpi / 4800 dpi

Resolution

Descreen

Select this checkbox to reduce moire patterns.

Printed photos and pictures are displayed as a collection of fine dots. "Moire" is a phenomenon where uneven gradation or a stripe pattern appears when such photos or pictures printed with fine dots are scanned. Descreen is the function for reducing this moire effect.

Note

Scanning takes longer than usual when you enable Descreen.

Unsharp Mask

Select this checkbox to emphasize the outline of the subjects and sharpen the image.

Reduce Show-through

Select this checkbox to sharpen text in a document or reduce show-through in newspapers.

Note

Select this checkbox when Document Type is text document and show-through is apparent in the

scanned image.

Remove gutter shadow

Select this checkbox to correct shadows that appear between pages when scanning open booklets.

Important

You cannot select this checkbox when Document Size is Auto Detect, Auto Detect (Multiple Documents) or Stitch Assist.

Align the document correctly with the marks on the Platen.

Note

Use ScanGear's Advanced Mode tab to correct gutter shadows when scanning non-standard size

documents or when custom cropping frames are set.

For details, see Gutter Shadow Correction in " Image Settings" (ScanGear's Advanced Mode tab).

Correct slanted document

Select this checkbox to detect the scanned text and correct the angle (within -0.1 to -10 degrees or +0.1 to +10 degrees) of the document.

Important

You cannot select this checkbox when Document Size is Stitch Assist.

The inclination of the following types of documents may not be corrected, as the text cannot be detected correctly.

-Documents in which the text lines are inclined more than 10 degrees or the angles vary by line

-Documents containing both vertical and horizontal text

-Documents with extremely large or small fonts

-Documents with small amount of text

-Documents containing figures/images or hand-written text

-Documents containing both vertical and horizontal lines (tables)