I sent a message to ColorByte support on whether the R3000 would be supported in imageprint 9 and received the following response:
"The R3000 is not currently on our development schedule, so I don't have any ETA on a possible driver. We may support it, but I would not expect it for, at best, any less than 4 months, if and when we do add it. Our developers are in the midst of a few other projects that need to be finished first."
Not very promising. Bit of a bummer, and strange that they would not seek to support more recent printer models. Thought I would pass on to others who may be wondering whether their R3000 (or other more recent model) would be supported.