Jan 23 20:30:22 morpheus kernel: [269901.872029] usb 1-2: new high-speed USB device number 14 using ehci_hcd
Jan 23 20:30:22 morpheus kernel: [269902.005556] usb 1-2: New USB device found, idVendor=04a9, idProduct=1907
Jan 23 20:30:22 morpheus kernel: [269902.005564] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Jan 23 20:30:22 morpheus kernel: [269902.005569] usb 1-2: Product: CanoScan
Jan 23 20:30:22 morpheus kernel: [269902.005573] usb 1-2: Manufacturer: Canon

$ sudo sane-find-scanner
[sudo] password for xxx:

# 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.

could not fetch string descriptor: Operation timed out
could not fetch string descriptor: Operation timed out
found USB scanner (vendor=0x04a9, product=0x1907) at libusb:001:014

$ sudo scanimage -Lv

No scanners were identified. If you were expecting something different, ...