Cyan
Cyan laser toner cartridge is equivalent to C9731A. They are used on laserjet 5500n, 5500, 5500hdn, 5500dtn. Laser toner cartridges are compatible with laser printers as well and they have affine toner powder consisting of iron particles, polyester and carbon. Iron particles are used for helping the toner in responding to the electrical charges and help the toner to meltdown onto the paper, this occurs in the final stage of the process of printing. Polyester helps in assisting the flow of toner particles via the process of printing. Carbon offers the chalky, black substance.