The HP OfficeJet 5510xi uses two remanufactured ink cartridges: HP 56 (C6656AN) in black, rated at about 450 pages, and HP 57 (C6657AN) in tri-color, rated at about 391 pages. Both are standard yield. The same ink also fits the OfficeJet 4110, OfficeJet 4215 and OfficeJet 5510. Same-day shipping on most orders.
