SuperInk 5 Pack High Yield Compatible Toner Cartridge Replacement for HP CE278A 78A Black use in HP Laserjet P1560 P1566 P1606 P1606n P1606dn M1536dnf Printer SuperInk Alternative Replacement for HP CE278A 78A High Yield Toner Cartridge Expected lifetime yield of 2,100 pages. Approx. cartridge yield in accordance with ISO/IEC 19752 (Based on 5% coverage) (Color: Black) Guarantee: One-Year Warranty/Shelf Time: 18M Our toner cartridge bare two exceptional ISO certifications: ISO 9001 for quality assurance and ISO 14001 for environmental assurance Compatibility: HP LaserJet P1560 P1566 P1606 P1606n P1606dn M1536dnf