на эти команды комп отвечает:
[root@localhost root]# sane-find-scanner tool
# No SCSI scanners found. If you expected something different, make sure that
# you have loaded a SCSI driver for your SCSI adapter.
# No USB scanners found. If you expected something different, make sure that
# you have loaded a driver for your USB host controller and have installed a
# kernel scanner module.
# Scanners connected to the parallel port or other proprietary ports can't be
# detected by this program.
[root@localhost root] # scanimage -L 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).
спасибо.