scanning trouble - device not detected

I just installed a fresh clean 0.91 on Redhat Enterprise WS 3.0 (after 
removing what Redhat provided me with - which worked fine except didn't 
allow scanning). Now I have printing configured, but again I'm stumped by 
scanning. 

scanimage --list-devices reports nothing. Same with specifying:

scanimage -d hpoj:mlc:usb:HP_LaserJet_3330 --test
scanimage: open of device hpoj:mlc:usb:HP_LaserJet_3330 failed: Invalid argument

I walked through the "Scanning details and troubleshooting" page trying 
everything including commenting "hp" out of /etc/sane.d/dll.conf and 
making sure that /etc/sane.d/hp.conf didn't contain any "ptal" entries (it 
didn't). No change.

Any suggestions?

I also have a spearate question - I see that HPOJ is now being managed by 
HP under the HPIJS project. Does that mean we will still be seeing future 
releases of HPOJ software? I downloaded the HPIJS software and it doesn't 
even deal with my device (HP Laserjet 3330mfp) or indeed any of the 
Laserjet devices, nor does it seem to handle any of the extra 
functionality like scanning or photo card access.

Paul


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