Hi there and welcome
As the first step, can you remove the power to the printer and let it sit for 10 minutes.
Then connect the power, turn on the printer and tell me if you still have the issue please.
It is the internal memory that has faulted.
A corrupted firmware can cause this. But we have ruled this out by trying to hard restart it.
I am really sorry about this and you are going to have to return the printer to have it replaced. It will be covered by the warranty if this has not expired, and the replacement will be done at no cost to you.
I am really sorry about this, and if you have problems, or would like any additional information or assistance, please do not hesitate to let me know.
And if you can take a second to rate my service, that would be greatly appreciated.