Epson Printers Quick-Start for Debian
The linked Linux Tutorials Shows You Step-by-Step How-to Install Epson Printer Debian GNU/Linux 32/64bit Desktop.
Especially relevant: before to Install the Driver Check on the Download page if your Epson Model is Included in the specifications.
Otherwise Search this WebSite or the Epson Support site with the initials of the Epson model as e.g. “L300″.