HP 2830 - Manual (Page 147)

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
Color
You can set the color values to the following 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 you want a document or photograph to be
scanned quickly.
ENWW Scanner resolution and color 131