Could you try first the same commands under root, so that we can check whether this is a perms issue or not:
$ sudo -i # scanimage -T Nicolas Le samedi 09 janvier 2010 ? 11:08 +0100, Christian Kolhaupt a ?crit : > Hello, > > im trying to get the canon mp270 running. Printing works without > problem, but SANE doesn't detect my scanner. > > I've installed GIT und the newest Version of SANE. > > In lib/udev/rules.d, lib32/udes/rules.d, lib64/udev/rules.d ist a file > 40-libsane.rules and it contains the line > > # Canon PIXMA MP270 > ATTRS{idVendor}=="04a9", ATTRS{idProduct}=="173b", MODE="0664", > GROUP="scanner", ENV{libsane_matched}="yes" > > Can anyone help me? Perhaps a Problem with the amd64-Version? > > thx a lot > --- > System: Ubuntu 9.10 amd64 > > $ scanimage -V > scanimage (sane-backends) 1.0.21cvs; backend version 1.0.21 > > $ scanimage -T > scanimage: no SANE devices found > > $ scanimage -L > No scanners were identified. If you were expecting something > different, > check that the scanner is plugged in, turned on and detected by the > sane-find-scanner tool (if appropriate). Please read the documentation > which came with this software (README, FAQ, manpages). > > $ lsusb > Bus 001 Device 004: ID 04a9:173b Canon, Inc. > > -- > sane-devel mailing list: sane-devel at lists.alioth.debian.org > http://lists.alioth.debian.org/mailman/listinfo/sane-devel > Unsubscribe: Send mail with subject "unsubscribe your_password" > to sane-devel-request at lists.alioth.debian.org