Toner - What is toner?
A printing consumable; toner is a powder that is used to form a printed image on a substrate. Early toners were made by mixing carbon powder, iron oxide, and sugar. Modern toners are made by melt-mixing the carbon powder with a polymer, and are commonly available in the four process colours (Cyan, Magenta, Yellow, Black), which are made by adding a pigment to the toner. Toners are stored in and fed from toner cartridges, which are used in dry printing processes, such as electrostatic printing, ion deposition printing, laser printing, and xerography. The electrostatic properties of toner particles mean they can be formed into an image on a substrate using static electricity, before being bonded to the substrate by a combination of heat (to melt the toner particles) and pressure.Go Back to Glossary