The HP OfficeJet T45xi uses two standard-capacity inks: a black, HP 45 (51645A), rated at about 1,100 pages, and a tri-color, HP 23 (C1823D), rated at about 690 pages. Both are compatible inks. The same supplies also fit the OfficeJet T45, OfficeJet T65 and OfficeJet T65xi. Same-day shipping on most orders.
