You can use laser printers to print on fabric. The heat issue is about using pretreated fabric sheets like Printed Treasures. Laser heat can soften the adhesive. Not a good thing inside a printer! If you use fabric and freezer paper, the heat is not a factor. The permancy of the image through the multiple washings a bed quilt would get may be, but for seldom/never washed wall quilts, lasers are wonderful. There are ways to 'fix' the image, but most change the hand of the fabric. There is a wealth of information about laser printing on fabric on the web these days so go take a look (be sure to check the date of the article though).