I'm trying to get my CanoScan LiDe 220 to work in Arch Linux based distro Chakra. I have used the scanner successfully under Linux Mint Katya.
sane-find-scanner gives found USB scanner (vendor=0x04a9 [Canon], product=0x190a [CanoScan], chip=GL848+) at libusb:002:003. So that looks promising.
But scanimage -L yields device v4l:/dev/video0' is a Noname Chicony USB 2.0 Camera virtual device.
scanimage -T fails with the message scanimage: sane_start: Invalid argument
I have made sure that my user is in the scanner group. Output of id is uid=1000(patagonia) gid=100(users)groups=100(users),7(lp),19(log),21(locate),90(network),91(video),92(audio),93(optical),94(floppy),95(storage),96(scanner),97(camera),98(power),1000(bundle)
Thanks in advance for your help!