Ok – If it doesn’t work,

Run

sane-find-scanner

then add the usb address to the end of:

/etc/sane.d/epson2.conf

Then to make the USB scanner available to normal users, give them rights to the USB port as found in the scan or just lsusb:

go to /dev/bus/

usb/002/002
(Might want to try /dev/bus/usb/003/002 as well if this bus no. confusion exists)
Right mouse click > properties > permissions
Allow Run for Group and Other Users.