The Sane project lists the scanner as "unsupported". I went to Epsom's site, looked up the scanner, and it leads you to an AVASYS site, and they do supply a driver for that scanner.
See this link -->
http://www.avasys.jp/lx-bin2/linux_e/scan/DL2.do
I have no way to know if it will work or not. There are packages there for several main line distros, including Fedora 15.
If that doesn't work, you can always do what I have done with my unsupported HP scanner. Install Virtual Box, install the win drivers on v-box. Its a little inconvenient, however it works, and I don't have to boot my system to use the scanner.
Hope this helps.
