Why not contact HP and ask them for updated drivers?
Just a thought.
I have recently started doing graphic design freelancing from home after working several years in an office. I would like to buy a wide format (13x19) printer for presentations, checking proofs and color separations. I am looking at Epsons and Canons with separate ink cartridges for around $600. It would be nice, but not essential to print from a roll also. I don't understand some technical things, like postscript issues. (no IT guy at by side anymore) My sad 7 year old HP printer won't print separations.
Any advice would be welcomed and appreciated.