Valuetoner Remanufactured Ink Cartridge Replacement for Hewlett Packard HP 15 & HP 78 C6615DN C6578DN (2 Black, 2 Tri-Color) 4 Pack Contents: HP 15 & HP 78 C6615DN C6578DN (2 Black, 2 Tri-Color) 4 Pack Color: Black, Tri-Color (Cyan, Magenta, Yellow) Page Yield: Up to 500 pages per black cartridge & 560 pages per tri-color cartridge (5% coverage) Printer Compatibility: Color Copier 310 Deskjet 920 920c 920cvr 940 940c 940cvr 3820 Fax 1230 1230xi Officejet V40 V40xi 5110 5110a2l 5110v 5110xi PSC 750 750XI 950 950vr 950xi Printer Warranty: 1 year limited warranty