I too have this issue.
I followed some instructions online by cleaning this, cleaning that, press and hold the power button, unplug it etc etc etc.
I then has an online chat with Epson, they told me to do one thing…it didn’t work and suggested to book an engineer of around £130!!!
Epson has to take some responsibility for this error message as it’s happening to too many users - so there must be a problem! Just like the cars that are malfunctioning!!!!
I need a printer for my business so need to either fix this one or buy another asap and I need one that includes A3 paper and there isn’t many of them that have good reviews….