³It further occured to me that printers such as my Xerox Phaser 8400 printer melts a wax-like substance onto the page to print. Could old, congealed school lunch fat be used to make images on paper? After all, I figure someone over at Tektronix many moons ago saw his or her child melting crayons onto paper to make an image, and the engineer came up with the same idea.