A power outage or accidental disconnection of the USB cable during a software update is the most frequent cause.
: Go to the Epson Download Center and search for your specific printer model (e.g., L5290 or L3250). epson mfp-ipl
Epson’s iPL protocol operates on a separate communication channel—often on a different UDP or TCP port (commonly port 3289 or 8431, depending on the model). This channel runs parallel to the print data stream. While the printer is rendering your PDF, the iPL channel is active, sending back: A power outage or accidental disconnection of the