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9. Scanning
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Settings in the Scanner window 9
Resolution 9
You can change the scanning resolution from the Resolution pop-up menu. Higher resolutions take more
memory and transfer time, but produce a finer scanned image. The following table shows the resolutions you
can choose and the available colors.
Scan Type
9
Black & White
Use for text or line art.
Gray (Error Diffusion)
Use for photographic images or graphics. (Error Diffusion is a method for creating simulated gray images
without using true gray dots. Black dots are put in a specific pattern to give the appearance of gray.)
True Gray
Use for photographic images or graphics. This mode is more exact because it uses up to 256 shades of
gray.
8 Bit Color
Uses up to 256 colors to scan the image.
24 Bit Color
Uses up to 16.8 million colors to scan the image.
Although using 24 Bit Color creates an image with the most accurate colors, the image file will be about
three times larger than a file created with 8 Bit Color. It requires the most memory and has the longest
transfer time.
Resolution Black & White/Gray (Error
Diffusion)
8 bit color True Gray / 24 bit color
100 × 100 dpi Yes Yes Yes
150 × 150 dpi Yes Yes Yes
200 × 200 dpi Yes Yes Yes
300 × 300 dpi Yes Yes Yes
400 × 400 dpi Yes Yes Yes
600 × 600 dpi Yes Yes Yes
1200 × 1200 dpi Yes No Yes
2400 × 2400 dpi Yes No Yes
4800 × 4800 dpi Yes No Yes
9600 × 9600 dpi Yes No Yes
19200 × 19200 dpi Yes No Yes