Here is a possible solution:
Ensure you have updated your system apt databases:
sudo apt-get update
To avoid potentially destroying your dpgk database from a botched install, ensure the following package is installed: dpkg-dev
sudo apt-get install dpkg-dev
Then, instead of using the printer tool, search for your epson driver with apt:
sudo apt-cache search EPSON Artisan
For me, I selected the artisan 725 - 835 series driver:
sudo apt-get install epson-inkjet-printer-artisan-725-835-series
Open up the printer configuration tool:
Ubuntu -> System -> Printers (or type printers in the search bar if you are running ubiquity)
Add a printer (mine is wired in on the network and shows up within 30 seconds)
Select your printer and since the driver is already installed, it will ask you for the printer details (location/name) and then open up the test printer dialog. All is now OK.
The graphical installer through the tool for the driver does not seem to work.