I had no luck installing the driver from *.deb, but I'm also running
x64 and the page says 32-bit.
When following the instructions to compile from source I managed to
get to the point where the driver was apparently registered with
sane, but when selecting the Canon-Driver (canondr, in contrast to
included canon_dr), `scangui` says: "Cannot open scanner device."
`scanimage` says: "scanimage: open of device canondr:libusb:001:005 failed: Error during device I/O"