A printer is neutral because you have to send it all the data to print out a copy of copyrighted content. It doesn’t contain it inherently.
Show me a prompt that can produce the first paragraph of chapter 3 of the first Harry Potter book. Because i don’t think you can. I don’t think you can prove it’s “in” there, or retrieve it. And if you can’t do either of those things then I think it’s irrelevant to your claims.