I have recently bought an EPSON Stylus Office TX510FN Printer & wanted to install it on my Ubuntu box. I have had a bit of difficulties at first try as the driver was not included in Ubuntu by default. After few minutes of searching the internet, I have found the driver at:

Epson Inkjet Printer Stylus Office tx510fn series 1.0.0-1lsb3.2 Driver 32-Bit Debian Driver (Work for Ubuntu 32-bit as well other 32-bit Debian)

Epson Inkjet Printer Stylus Office tx510fn series 1.0.0-1lsb3.2 Driver 64-Bit Debian Driver (Works for Ubuntu 64-bit as well other 64-bit Debian) (The one I am using)

For other users who is not using Debian but RPM based Linux, RPM packages can be found out as well at: