i am on lion 10.7.4 with an HP 8600 and i am getting errors in my print queu when i try to print pdf's. these say "unable to convert postscript file".
when i open these pdf's in Preview, they print just fine.
i also have a Epson printer but i have not tried isolating this down to a problem related to the HP as of yet.
that said, it is a pain and i would like to fix it.
TIA