09-14-2019 04:17 AM
Welcome to the HP Support Community.
To better assist you - What's the paper size and type?
While you respond to that, try updating the printer's firmware. Refer to this document for steps - HP Printers - Updating or Upgrading Printer Firmware
You may also refer to this document - HP Deskjet 4640, Officejet 4630 Printers - Paper Jam Error
Hope this helps! Keep me posted.
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