Jam Paper And Envelope I Keep Getting A "paper Jam" Error When Trying To Print On My HP Deskjet 3320 Printer. How Can I Resolve This?

I keep getting a "paper jam" error when trying to print on my HP Deskjet 3320 printer. How can I resolve this? - jam paper and envelope

No paper in the printer, but I get an error paper jam. How do I solve this problem? I also have a print job in this, but let me not be held to cancel the print job. Any help would be appreciated that.