LD Remanufactured Toner Cartridge Replacement for HP 61X C8061X High Yield (Black) Page Yield: 10,000* | Shelf Life: 24-36 months | *Average printer cartridge page yield in accordance with ISO 19752 The use of remanufactured cartridges and supplies does not void your printers warranty This remanfactured cartridge comes equipped with 85% 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 HP LaserJet printers: 4100, 4100dtn, 4100mfp, 4100n, 4100tn, and 4101mfp