Hey Fred, I can't speak for the 1900 (I think Preston uses one?) but we have 2 1400's and they are good. 13 x 19 max on the film size though. We're using AccuRIP, which as you've probably know, pulls from all six cartidges, which we refill ourselves. Nice and black, sharp and crisp. Not to be compared with an actual imagesetter, but damn good for t-shirt work.
Steve