Copy Machine Powder, also known as TONER (5 letters), is a powdery substance used in photocopiers and laser printers. It is made up of plastic particles, carbon black, and iron oxide. The powder is used to create the image on the paper when heated by the machine. It is also used to help the machine transfer the image onto the paper. TONER is an essential part of the copy machine process and is necessary for producing high-quality copies.