When installing also iscan, see https://bugs.launchpad.net/ubuntu/+bug/208405
one file is also in libsane-extras package
/usr/share/man/man5/sane-epkowa.5.gz
this can be fixed by
dpkg --force-overwrite -i iscan...deb
or
dpkg --force-overwrite -i libsane-extras
When installing also iscan, see /bugs.launchpad .net/ubuntu/ +bug/208405 share/man/ man5/sane- epkowa. 5.gz
https:/
one file is also in libsane-extras package
/usr/
this can be fixed by
dpkg --force-overwrite -i iscan...deb
or
dpkg --force-overwrite -i libsane-extras