UMAX Technologies Astra 2000U Owner's Manual page 43

Changing the Resolution Setting
Scanning resolution is measured in dots per inch (DPI). Resolution
determines the amount of information the scanner will capture in a
scanned image. The higher the resolution, the finer the image detail,
and the larger the file sizes.
VistaScan lets you choose from the following resolution settings:
Higher – this option opens a drop down menu that contains
higher resolution settings which include 9600, 8400, 7200,
6000, 4800, 3600, 2400, 1800, and 1600 dpi selections.
1200
800
600
400
300
200
150
100
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UMAX Astra 2000U/P Owner's Guide
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