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277Using the Scanner With Windows
Using the Customized Scanning Mode
3 Specify these settings in the Custom dialog box:
Standard Value
You change the standard value for the default settings here. Select from:
DTP(Color), DTP(B&W), Photo, FAX, OCR, Text, Previous Setting.
Image Type
Select a type of image: Color (the default), Grayscale, or Monochrome.
Resolution
Determines the precision of the scanned image. The higher the resolution
setting, the higher the precision and quality of the scanned image.
(However, the higher the resolution setting, the larger the file size.) Possible
settings: 90, 180, 200, 300, 360.
• The 90 dpi setting is sufficient for viewing images on a screen.
• The 180 dpi setting is sufficient for printing images.
Threshold
Determines the intensity of halftones for monochrome images. Drag the
slide bar to the left for a lighter image or drag it to the right for a darker
image. The Threshold option is available only when the Image Type is set
for Monochrome and Character Emphasis is off.
Edge Emphasis
Sharpens the edges of a soft image to create a clearer, more accented
appearance in the entire image. This option is available only when the
Image Type is set for Monochrome. Edge Emphasis is not used with
prescanning.