they say never use a laser printer for fabric printing....inkjet printers only, it has to do with the heat involved with the laser printer and the ink itself will wash out. i do not know about pre-treating your fabric with bubble jet or something to help the ink set but i have heard that it is not good for a laser printer. if i had just bought one i think i would experiment a little and try it, but the experts do say inkjet printers only.