Try scanimage -L and read the backend's manpage. # Your USB scanner was (probably) detected. # you have loaded a kernel SCSI driver for your SCSI adapter.įound USB scanner (vendor=0x138a, product=0x003f) at libusb:001:007įound USB scanner (vendor=0x04a9, product=0x180b ) at libusb:001:010 If you expected something different, make sure that # scanner is powered up and properly connected to your computer. # result is different from what you expected, first make sure your # sane-find-scanner will now attempt to detect your scanner. well, if I had a driver connecting directly to Xsane, then I could get the raw image, and decide for myself how much loss of quality I want in my JPEG.ĮDIT: It turns out for these versions of the drivers, on Ubuntu 18.04, I in fact do have a SANE back-end: $ sudo sane-find-scanner Other tools like Simple Scan or Xsane are not needed. The worst thing about this, is that I get no 'raw' image - I only get JPEG (and JPEG is embedded into the PDF too), with all the loss in quality and blockyness that entails. Upon clicking Version, this is displayed: Just wanted to note, that for my Canon scanner, upon installing the drivers, only a scangearmp2 application is installed, which looks nothing like the ScanGearMP screenshots from the accepted answer:

Scangear tool settings