epson-inkjet-printer-escpr : Epson Inkjet Printer Driver (ESC/P-R) ( http://www.epson.com/ )
epson-inkjet-printer_201207w : Epson printer driver (L110, L210, L300, L350, L355, L550, L555) ( http://download.ebz.epson.net/dsc/search/01/search/?OSC=LX http://www.openprinting.org/driver/epson-201207w )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a rainyday
For Paludis use this rsync : rsync://gentoo.zugaina.org/rainyday-portage
If you have a problem : ycarus(-at-)zugaina.org