So I went back and looked through emails. yes I had to send a file from the printer to get a file back to upload to the printer. Basically the carts always look full until the manual flag on the cart gets tripped. You can put any cart in any slot including cleaning carts and it doesn't care. The person I found was in the Ukraine and I was very skeptical it would work as he insisted on Western Union cash up front as he was screwed many times but he was honest and it worked. I've since moved to an HP 360 latex so the Mutoh is sitting there.
unused, lonely and sad.........