problems seem for usb-permissions. xsane and scanimage work from root, but not for user. From: /usr/share/doc/libsane/README.Debian.gz I can read that sane add a scanner group and so I have launched: adduser giulio scanner -- but it now works:( if I launch 'ls -l /dev/* | grep scanner' I have not found scanner groups... maybe a bug in the package? Thanks, Giulio