This scaner ist supported under sane. Sine I'm using an amd64 desktop, I see vertical color lines on my scans... it does not look very good. I'm also not satisfied with the quality of the scans.
Epson a une page de drivers linux pour ses scanners : http://www.avasys.jp/lx-bin2/linux_e/scan/DL1.do
Note : dpkg-buildpackage -uc -us does not work.
Note make does not work on my amd64 distibution nor on my virtual i386 distribution. French instructions can be found here : http://www.linuxpedia.fr/doku.php/ubuntu/pilote_iscan_pour_scanner_epson_sur_ubuntu_x86-64(approuver les sites) I will go on with these instructions.
Let's try with alien :