Завел сканер ?
# eix -s samsung
[I] net-print/samsung-unifieddriver [1]
Available versions: (~)3.00.62!m!s {qt4 scanner}
Installed versions: 3.00.62!m!s(14:25:09 28/03/10)(scanner -qt4)
Homepage: http://www.samsung.com
Description: Samsung binary unified driver
% sane-find-scanner
found USB scanner (vendor=0x04e8 [Samsung], product=0x3419 [SCX-4x21 Series]) at libusb:003:004
scanimage -L
[sanei_debug] Setting debug level of dll to 255.
[dll] sane_init: SANE dll backend version 1.0.12 from sane-backends 1.0.20
[dll] sane_init/read_dlld: processing /etc/sane.d/dll.d ...
[dll] sane_init/read_dlld: done.
[dll] sane_init/read_config: reading dll.conf
[dll] add_backend: adding backend `smfp'
[dll] add_backend: adding backend `xerox_mfp'
[dll] sane_get_devices
[dll] load: searching backend `xerox_mfp' in `/usr/lib64/sane'
[dll] load: trying to load `/usr/lib64/sane/libsane-xerox_mfp.so.1'
[dll] load: dlopen()ing `/usr/lib64/sane/libsane-xerox_mfp.so.1'
[dll] init: initializing backend `xerox_mfp'
[dll] init: backend `xerox_mfp' is version 1.0.10
[dll] load: searching backend `smfp' in `/usr/lib64/sane'
[dll] load: trying to load `/usr/lib64/sane/libsane-smfp.so.1'
[dll] load: dlopen()ing `/usr/lib64/sane/libsane-smfp.so.1'
[dll] init: initializing backend `smfp'
[dll] init: backend `smfp' is version 1.0.1
[dll] sane_get_devices: found 0 devices
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).
[dll] sane_exit: exiting
[dll] sane_exit: calling backend `xerox_mfp's exit function
[dll] sane_exit: calling backend `smfp's exit function
[dll] sane_exit: finished