The crossword solution for the term 'Copy Machine Insert' is 'TONER, ' which is a powder used in laser printers and photocopiers to form the printed text and images on the paper. TONER is made up of fine particles of plastic, carbon, and iron oxide, which are melted and then applied to the paper. It is important to regularly replace the TONER in order to ensure that the printer or photocopier is working properly.