It turns out using the Epson Scan utility on OS X 10.7 is actually impossible.
Source: http://files.support.epson.com/htmldocs/art730/art730ug/source/scanners/source/scanning_software/tasks/scanning_mac_106_107.html
Source: http://files.support.epson.com/htmldocs/art730/art730ug/source/scanners/source/scanning_software/tasks/scanning_mac_106_107.html