I did a fresh install of Ubuntu 9.10 and now my Brother MFC 210C won't scan (printing is fine).
I installed the following packages according to the instructions on the Brother site:
cupswrapperMFC210C-1.0.2-3.i386.deb mfc210clpr-1.0.2-1.i386.deb brscan2-0.2.4-0.i386.deb
When I start xsane and click "Scan", I get the error:
failed to start scanner: invalid argument
This scanner was working fine on 9.04 (and previous versions).
EDIT: I also did:
sudo chmod a+w /dev/bus/usb sudo chmod a+w /dev/bus/usb/*