Where do I find instructions on how to configure sane-epkowa

[Leslie Jensen]

I'm at the point where sane-find-scanner detects my scanner but 
scanimage cannot find it.

I know I must use the sane-epkowa backend.

I've edited the /usr/local/etc/sane.d/epkowa.conf but I think I need to 
make sane aware of the epkowa backend.

The man page for sane-epkowa is not very helpful and there's nothing in 
the handbook to help me out.

Any suggestions?

Thanks

/Leslie