SCANNING FROM TWAIN AND WIA
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SKIP BLANK ORIGINALS
Select this option to have the scanner detect if a blank page has been fed through the scanner, and remove it
from the final file. Typically you might use this option when scanning a stack of two-sided pages which have a
number of blank sides.
• Blank threshold—you can use the Threshold slider to fine tune the sensitivity of the blank image detection.
The results will depend on the scan settings and the types of documents being scanned. In general leave the
threshold level at the default setting if you are scanning good-quality documents printed on standard 20lb
printer paper. Try lowering the sensitivity level if your documents contain light colored text or drawings so
those pages are not detected as blank. Raise the sensitivity level if you are scanning double-sided light-
weight paper where images from the opposite side of the page may appear in the image of the blank side.
CLEAN UP EDGES
Select this option to remove any thin lines from around the edges of the final scan. This option will fill the margins
of the image with the detected edge color. When you select this option, the Width input field will automatically
enable for you to input the size of the area you want to have filled with the background color. You can specify a fill
size between approximately 0.04 to 0.39 inches (1 mm to 10 mm).
AUTOMATIC IMAGE CROPPING
Depending on the scanner model and installed software, there may be more than one auto cropping option in
the interface.
• Crop to original—select this option to let the scanner automatically determine the size of the item being
scanned. This option is only available if the scanner supports this feature. This option may occasionally be
grayed out as not all scanning applications support this feature.
Always properly adjust the paper guides to the width of the paper in the input tray so that the pages feed
into the scanner as straight as possible. Skewed pages may not crop properly.
• Crop to length—this option tells the scanner to crop the final image to the bottom of the page being
scanned. This option is only available if the scanner supports this feature. This option may occasionally be
grayed out as not all scanning applications support this feature.
Always properly adjust the paper guides to the width of the paper in the input tray so that the pages feed
into the scanner as straight as possible. Skewed pages may not crop properly.
COMPRESSION OPTIONS
There are two types of image compression functions used during scanning. The input compression option is
compressing the image when transferring it from the scanner to the TWAIN driver on the computer. The output
compression option is the TWAIN driver compressing the image before it sends the image to the scanning
application. In the scanning interface the input compression option is Compress transfers and the output option
is Compression.
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