sane config

$ sane-find-scanner

  # sane-find-scanner will now attempt to detect your scanner. If the
  # result is different from what you expected, first make sure your
  # scanner is powered up and properly connected to your computer.

  # No SCSI scanners found. If you expected something different, make sure that
  # you have loaded a kernel SCSI driver for your SCSI adapter.

found USB scanner (vendor=0x1083 [CANON   ], product=0x1622 [CANON   DR-9050C        ]) at libusb:001:003-1083-1622-00-00
  # Your USB scanner was (probably) detected. It may or may not be supported by
  # SANE. Try scanimage -L and read the backend's manpage.

  # Not checking for parallel port scanners.

  # Most Scanners connected to the parallel port or other proprietary ports
  # can't be detected by this program.

  # You may want to run this program as root to find all devices. Once you
  # found the scanner devices, be sure to adjust access permissions as
  # necessary.



$ scanimage -L
device `canon_dr:libusb:001:003-1083-1622-00-00' is a CANON DR-9050C scanner



From /usr/local/etc/sane.d/canon_dr.conf
# DR-9050C
usb 0x1083 0x1622