Error code

HP 50.4C

HP50.4C
Printer Error Code· An error or status code shown on a printer's display or its software.

What it means

A fuser error occurred.

How to fix it

  1. Power cycle the printer and allow it to warm up fully.
  2. If the error persists the fuser may need replacement.
  3. Contact HP support.

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