[ну же!]сканер Samsung SCX-4x21 + Gentoo = не работает

valdos-desk fat-troll # cat /etc/udev/rules.d/70-libsane.rules
LABEL="libsane_usb_rules_begin"
# Samsung SCX-4x21
ATTRS{idVendor}=="04e8", ATTRS{idProduct}=="3419", ENV{libsane_matched}="yes"
LABEL="libsane_usb_rules_end"

fat-troll@valdos-desk ~ $ scanimage -L
device `xerox_mfp:libusb:002:005' is a SAMSUNG ORION multi-function peripheral
fat-troll@valdos-desk ~ $ scanimage 
scanimage: no SANE devices found    
fat-troll@valdos-desk ~ $ 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).
fat-troll@valdos-desk ~ $ sane-find-scanner

  # sane-find-scanner will now attempt to detect your scanner. If the
  # result is different from what you expected, first make sure your
  # scanner is powered up and properly connected to your computer.

  # No SCSI scanners found. If you expected something different, make sure that
  # you have loaded a kernel SCSI driver for your SCSI adapter.

found USB scanner (vendor=0x04e8 [Samsung], product=0x3419 [SCX-4x21 Series]) at libusb:002:005
  # Your USB scanner was (probably) detected. It may or may not be supported by
  # SANE. Try scanimage -L and read the backend's manpage.

  # Not checking for parallel port scanners.

  # Most Scanners connected to the parallel port or other proprietary ports
  # can't be detected by this program.

  # You may want to run this program as root to find all devices. Once you
  # found the scanner devices, be sure to adjust access permissions as
  # necessary.
fat-troll@valdos-desk ~ $

valdos-desk fat-troll # cat /etc/sane.d/xerox_mfp.conf
#xerox_mfp.conf

#Dell MFP Laser Printer 1815dn
usb 0x413c 0x5124

#Xerox Phaser 6110MFP
usb 0x0924 0x3d5d

#Samsung SCX-4x21
usb 0x04e8 0x3419
valdos-desk fat-troll #

mount | grep usbfs
usbfs on /proc/bus/usb type usbfs (rw)