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Scanning resolution is measured in pixels per inch (ppi). Color, grayscale, and black and white define
the number of colors possible. Adjust the scanner hardware resolution to up to 1200 ppi. The software
can perform an enhanced resolution up to 19,200 ppi. Also, set color and grayscale at 1 bit (black and
white), or at 8 bit (256 levels of gray) to 24 bit (true color).
The resolution and color guidelines table lists simple scanning tips.
NOTE Setting the resolution and color to a high value can create large files that take up disk
space and slow the scanning process. Before setting the resolution and color, determine how the
scanned image is being used.
Resolution and color guidelines
This table describes the recommended resolution and color settings for different types of scan jobs.
Intended use Recommended resolution Recommended color settings
Display on screen 75 ppi
●
Black and White for text
●
Grayscale for graphics and photos
●
Color, if the image is in color
Print (graphics or text) 600 ppi for complex graphics, or to
significantly enlarge the document
300 ppi for normal graphics and text
150 ppi for photos
●
Black and White for text and line art
●
Grayscale for shaded or colored
graphics and photos
●
Color, if the image is in color
Edit text 300 ppi
●
Black and White
E-mail 150 ppi
●
Black and White, if the image does
not require smooth gradation
●
Grayscale, if the image requires
smooth gradation
●
Color, if the image is in color
Color
Set the color values using these settings when scanning.
Setting Recommended use
Color Use this setting for high-quality color photos or documents in
which the color is important.
Black and White Use this setting for text documents.
Grayscale Use this setting when file size is an issue or when a document
or photograph needs to be scanned quickly.
86 Chapter 9 Scan ENWW