HP Scanner on F8

[Jonathan Allen]

Hi All,

I'm trying to install a scanner in an F8 environment.  The scanner is an
HP 5590P scanner, 0x03f0/0x1705.  As a relatively new device, this is not
directly known to F8.  But it is known to F9, so I 'force' installed
sane-backends-1.0.19-10.fc9.i386 to bring it in.

   [root at marquee sane.d]# sane-find-scanner -q
   found USB scanner (vendor=0x03f0 [Hewlett-Packard], product=0x1705
   [hp scanjet scanner], chip=HP5550/5590/7650) at libusb:001:003

This shows that the scanner and model are known and there is a config file
/etc/sane.d/hp5590.conf.  I confirmed this with:

   [root at marquee sane.d]# lsusb
   Bus 001 Device 003: ID 03f0:1705 Hewlett-Packard ScanJet 5590
   Bus 001 Device 002: ID 0bda:0111 Realtek Semiconductor Corp. Card Reader
   Bus 001 Device 001: ID 0000:0000  
   Bus 003 Device 001: ID 0000:0000  
   Bus 002 Device 001: ID 0000:0000 

But:
   
   [root at marquee sane.d]# 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).
   [root at marquee sane.d]# xsane

Where do I go next?  'xsane' also insists that there are no scanners available.
But I haven't a clue how to make the backend available.

Jonathan