deleting and re-installing a printer

I have an HP 3600 printer connected to a USB port.  It decided to stop printing today, and I couldn't get it to print again.

 

No problem... I'll just delete the old printer and re-install the same one.  The problem is, the old icon has one print job pending and the icon says "deleting" underneath, but it never deletes!  Rebooting has no effect! and I can't delete the print job.

 

Installing the printer again doesn't work either.... the old printer won't delete and won't print, so I'm stuck.

 

How do I fix this without re-imaging the hard drive?

thanks in advance,