I know it's been a month since the last post - but I had a similar problem with my Epson, and found a driver called Gutenprint. It worked and I could print to it (the printer has issues with InDesign and printing larger than letter pages) with the paper size I needed.
Just have not figured out how to color calibrate it yet - I really need to so I can use the printer with programs other than Illustrator and Acrobat.