请教关于扫描仪的安装问题

bohemia2007

我使用的是Fedora Core 6, 扫描仪是EPSON GT-X750
我已经修改了/etc/sane.d/epsonl.conf中的内容了 libusb sane driver也都已经安装上了

但是运行 sane-find-scanner之后结果是：
  # 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.
  # Also you need support for SCSI Generic (sg) in your operating system.
  # If using Linux, try "modprobe sg".

found USB scanner (vendor=0x04b8 [EPSON], product=0x0119 [EPSON Scanner]) at libusb:005:002
  # 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.

运行lsusb之后结果：
Bus 005 Device 001: ID 0000:0000  
Bus 005 Device 002: ID 04b8:0119 Seiko Epson Corp.
Bus 002 Device 001: ID 0000:0000  
Bus 001 Device 001: ID 0000:0000  
Bus 003 Device 001: ID 0000:0000  
Bus 004 Device 001: ID 0000:0000

看来扫描仪已经被系统识别，但是不能被sane识别，我从网上找了好多资料试了之后都不行，不知道该修改那。
请高手指教！