A method for fixing a full color toner image by inserting a transfer medium to which a toner image is transferred, between a pair of rolls of a fixing apparatus, and pressing the medium therebetween, wherein the toner image is formed of a full color toner prepared by dispersing a colorant into a polyester...http://www.google.de/patents/US5250996?utm_source=gb-gplus-sharePatent US5250996 - Method for fixing full color toner images
