Speedy Inks Compatible Toner Cartridge Replacement for HP 78A CE278A (Black) For use in Hewlett Packard: LaserJet Pro M1536dnf, LaserJet Pro P1606dn Page Yield: 2,100 Color: Black Shelf Life: 24 -36 Months The use of aftermarket replacement cartridges and supplies does not void your printer's warranty