Aha ... so <-P<- becomes VPR. Well, VPR is the name of the top board. The other display is obviously a corruption (could just be a bad connection somewhere - how about at the display?).
As I've run out of ideas, here's a final shot:- somehow (perhaps by pressing some sort of random key-press sequence) you have stumbled across an undocumented mode (that is, "Designer Mode").
What is the condition of the unit (inside)? Clean, or not so clean?
I would try cleaning where needed, and re-seating all boards and connectors.
I don't suppose you have access to another of these printers?
Good Luck (and fingers crossed).
