Error code

HP 49

HP49
Printer Error Code· An error or status code shown on a printer's display or its software.

What it means

A firmware error occurred and the printer cannot continue.

How to fix it

  1. Power cycle the printer (off 30 seconds, then on).
  2. Remove all jobs from the print queue.
  3. Update the printer firmware.
  4. Test with a different application or driver.

Not affiliated with HP. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.