They used to be called gandi till Agfa bought em. I believe the old model was called the gandi 3150uv. Never really had any issues other than the bed had to be taped down on the vacuums if running something smaller than a 4x8. I believe we had a 5x10 at the time. It needs to be in a very clean environment. We had a small piece of plastic fly in and so happened to get on the gold encoder and took us 3 days to get it working properly