The HP DeskJet 1120 Cxi uses two inks: black HP 45 (51645A), about 1,100 pages, and tri-color HP 23 (C1823D), about 690 pages. Both are standard-capacity compatible inks. The same supplies also fit the DeskJet 710C, DeskJet 712C and DeskJet 720C. Same-day shipping on most orders.
