I have the same problem (with same equipment). It can't print frm Microsoft office 2007 (& seems from other applications too). I have downloaded the virtual printer FinePrint 6.11 & now all ok I can print via this printer. Make Fineprint as default printer. Just download & try.
But sometimes I like to print directly but my CD with drivers say that my operating system not supported.
Win7 found the drivers automaticaly but seems it need to be updated for win 7 by HPoriginal drivers specially for this printer.