Use the Heat Press - HP3804 to sublimate on to a t-shirt, or the Mug Heat Press - Bosstop MP150 to print to a sublimation mu.
One brand of sublimation paper used is Advantia Laser Printer Films (A4) paper.
Sawgrass SG400 Printer
Printer user manual
Video with guidelines on how to use the printer (skip to 1:55)