HP OfficeJet K80xi Ink Cartridges

The HP OfficeJet K80xi uses two compatible ink cartridges: the HP 45 (51645A) in black, rated at about 1,100 pages, and the HP 78 (C6578AN) in tri-color, rated at about 710 pages. Both are standard yield. The same ink also fits the OfficeJet K80, OfficeJet K60xi and OfficeJet G85xi. Same-day shipping on most orders.