Having done what I hope is due diligence in researching this answer I'm stuck. I've recompiled and installed sane and
libusb as needed to ensure their integrity. I've also edited the various
.conf files and ascertained the drivers are present for the hardware I have. Upon first trial Simple Scan DID work until I loaded
scanimage -L will see the scanner, but only when run as root (using
sudo), not as normal user.
lsusb sees the scanner OK as does
sane-find-sccanner, since changing file permissions, as user.
I've tried to
chmod to a+r-x for all the files I could find for the various
sane, etc I could find. I guess this comes down to the subtle differences in file names and locations of things in 14.04 and the answers given to others. For example, I do not have a
dev/003/010 file for any of my USB ports.
I do have a
usb2 etc which points to a more arcane set of file names...
scanimage -L didn't reveal what's missing. I'm stuck.
- Ubuntu 14.04LTS
- HP-AMD64 platform
- Canon LiDE20 scanner (using Plustek .conf file and drivers)