I had the same problem with my HP PSC 750 and after a lot of research I finally found out that both packages "sane" and "sane-utils" were not installed by default in Hardy. After manually installing both my scanner worked like before.
It might be worth a try to see if this solves your issues with HP scanners.
I had the same problem with my HP PSC 750 and after a lot of research I finally found out that both packages "sane" and "sane-utils" were not installed by default in Hardy. After manually installing both my scanner worked like before.
It might be worth a try to see if this solves your issues with HP scanners.