HI-VISION 1 Pack Compatible HP 78A, CE278A Black Laserjet Toner Cartridge Replacement for HP LaserJet Pro P1606dn, LaserJet Pro M1536dnf Multifunction Printer HI-VISION HI-YIELDS  Compatible Toner Cartridge Replacement for Hewlett-Packard (HP) CE278A Premium Quality Replacement Ink Cartridge is made by ISO9001 Certified Factory to Meet OEM Standards 180 Days Money Back Guarantee 1 Year Manufacturer Warranty Against Product Defect Up to 2,100 Pages at 5% Coverage