Looks like this takes a while without ready-made instructions, so I’ll jot ’em down here for future reference.
- Pick up the Scan Tool zip archive from Epson’s site (not sure if the link works, but it’s in the support section. I picked Windows XP as my OS, the Linux option took me to a site which didn’t mention the 660 so I don’t know about that.
- Extract
Euro/DATA/BIN/TAIL_061.BIN
from the archive. - Toss the file into a suitable directory; I chose to create
/usr/local/share/sane/snapscan
for this purpose. - Edit
/etc/sane.d/snapscan.conf
and fix the firmware line to point toTAIL_061.BIN
in wherever you put it in the previous point. - Add your unprivileged self to the
scanner
group. Log out and back in to make it actual.
That’s it.