For optimum performance we recommend genuine Kyocera TK3182 toner, which is specially designed for your printer. Toner particles of the incorrect size can lead to poor print quality with streaky grey background or ghosting on the page. Kyocera TK3182 toner contains ceramic cleaning beads which are essential to ensure the printer drum is clean and particle free. This is particularly important as Kyocera TK3182 drums are designed to last several hundred thousand copies. GMS61554 or TK-3182 (1T02T70US0) Black Toner Cartridge; Yield: 21,000 pages