I get the same error, does your card run a propriety driver? If so, you can open a terminal and log in as root and run hp-setup from there. It should download the driver and install the driver for you.
When I did as you suggested I get this error,( No appropriate print PPD file found for model officejet_6500_e709a)and I also get the same error as before.
Thanks for trying to help me.