I tried this scanner on other computer with RH7.3 linux and kernel. Usb is ohci hardware version. Basic scan works, scanner was founded as 'avision:libusb:002:004'. The scan with feeder (option --adf) loaded approx. 10cm of paper (A4) into feeder, then printed 'Ready' on display and usb had timeout.
Here is my script: SANE_DEBUG_AVISION=8 scanimage -d avision:libusb:002:004 \ --resolution 120 \ -x 210mm \ --contrast 92 \ --adf=yes \ --format tiff \ --batch -- Ondrej Koala Vacha
