Have you tried troubleshooting on the Epson site?
http://www.epson.com/cgi-bin/Store/...&prodoid=6464128&category=Products&menuSpec=7
(From Epson)
Check the image settings of your scanner software, especially data format (bits, pixel, color), gamma correction, and color correction. Try different combinations of these settings.
Check the color matching and color management capabilities of your computer, display adapter, and software. Some computers can change the color palette to adjust the colors on your screen. See your software and hardware manuals for details.
Exact color matching is very difficult. Check your software and monitor documentation for information on color matching and calibration.