I'm using a Epson 7600 Photographic Dye. I was also under the impression that you have to have a rip program to print on shirts. We use a rip program for simulated for half tones so we thought would have to have one for sublimation also seeing it is going on a garment. We also use Photoshop for our photo realistic, we have Corel Draw but Photoshop will also spot color so we mainly use it.