LD Compatible Toner Cartridge Replacement for Kyocera FS-C5100DN TK-542K (Black) Page Yield: 5,000 | Shelf Life: 24-36 months The use of compatible cartridges and supplies does not void your printers warranty This compatible toner comes equipped with 100% brand new parts including an ink smart chip that accurately tracks your ink level All LD branded products are backed by a 100% satisfaction and LIFETIME guarantee For use in the following Kyocera-Mita printer: FS-C5100DN