The scanner LiDE 300 is declared as supported "Complete" at the SANE website. It is the third (!) scanner I have bought in order to make SANE work... The first scanner was not supported, then I bought a new scanner which was listed as "Supported" by Sane, but actually scanned only false colors, and now this is the third scanner which I have bought only because SANE lists it as supported. When I run sane-find-scanner I get: ``` found USB scanner (vendor=0x04a9 [Canon], product=0x1913 [LiDE 300]) at libusb:001:044 could not fetch string descriptor: Pipe error ``` "scanimage -L" reports: ``` No scanners were identified. If you were expecting something different, check that the scanner is plugged in, turned on and detected by the sane-find-scanner tool (if appropriate). Please read the documentation which came with this software (README, FAQ, manpages). ``` Here is some data about my system: ``` $ sane-config --version 1.0.29 $ uname -a Linux ras4 4.19.93-v7l+ #1290 SMP Fri Jan 10 16:45:11 GMT 2020 armv7l GNU/Linux ``` How I installed it: `aptitude install sane sane-utils libsane-extras xsane` After it did not work, I also tried installing the latest backends: ``` wget https://gitlab.com/sane-project/backends/uploads/54f858b20a364fc35d820df935a86478/sane-backends-1.0.29.tar.gz untargz sane-backends-1.0.29.tar.gz cd sane-backends-1.0.29 ./configure make make install ``` Please help me.