The HP DeskJet 890 Cxi uses compatible ink in two cartridges: the HP 45 (51645A) in black, rated at about 1,100 pages, and the HP 23 (C1823D) in tri-color, rated at about 690 pages. Both are standard capacity. The same ink also works with the DeskJet 710C, DeskJet 712C, and DeskJet 720C. Same-day shipping on most orders.
