Our remanufactured EP-87BK toner cartridges is compatible with all of the same printers as the genuine Canon product. This is due to our manufacturers salvaging as many components as possible from Canon original 7433A003AA toners, cleaning and testing them thoroughly. Whatever parts cannot be saved are replaced with compatible EP-87BK designed to replicate Canon specifications as closely as possible. With the remanufactured Canon 7433A003AA assembled the cartridge is then filled with a high quality compatible toners that has been formulated to fuse at the same temperate as the black toner produced by Canon. This ensures prints of a comparable quality to the Canon original EP-87BK cartridge, but with comparable print quality.