Epson 600 User Manual page 99

Basic Scanning
Note:
A resolution of
240 to 360 dpi is an
optimum range when
scanning color images
for printing on a color
printer.
For example, if you're scanning an image to go on a
web site, a resolution of 72 dpi is usually sufficient
since this is the resolution of most computer monitors,
and anything more detailed generally won't show on
the screen.
However, an EPSON Stylus Color 600 printer can print
up to 1440 dpi, so if you are scanning an image to be
printed, you should scan the image at a higher
resolution, such as 240 dpi.
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