Epson C823301 Error 503: Line on hook

Epson printer · taken from the manufacturer’s manual, pages cited

Error code503

The system detected a line on the hook. The manual lists no action for this code.

Model
Epson C823301
Display shows
Line on hook (503)
Type
Error code
Source
Manual p. 13

What 503 means

Line on hook p. 13

If 503 is still not resolved

The manual gives no further instruction for this code. Open the code table in the PDF or contact Epson service.

Open the manual at page 13 All C823301 error codes Manual details & download

This page summarises what the manufacturer’s manual says about 503; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Epson. Found a mistake? Report an error.