The HP OfficeJet T45 uses two inks: black HP 45 (51645A), rated at about 1,100 pages, and tri-color HP 23 (C1823D), rated at about 690 pages. Both are standard-capacity compatible inks. The same supplies also fit the OfficeJet T45xi, OfficeJet T65, and OfficeJet R45. Same-day shipping on most orders.
