go to http://download.ebz.epson.net/dsc/search/01/search/?OSC=LX download GT-1500 scaner
then on terminal input:
tar -zxvf iscan-gt-1500-bundle-1.0.1.x64.deb.tar.gz
cd iscan-gt-1500-bundle-1.0.1.x64.deb/
sudo -s
./install.sh
go to http://download.ebz.epson.net/dsc/search/01/search/?OSC=LX download GT-1500 scaner
then on terminal input:
tar -zxvf iscan-gt-1500-bundle-1.0.1.x64.deb.tar.gz
cd iscan-gt-1500-bundle-1.0.1.x64.deb/
sudo -s
./install.sh