The HP DeskJet 1125C uses two compatible ink cartridges, both standard capacity: HP 45 (51645A) in black, rated at about 1,100 pages, and HP 23 (C1823D) in tri-color, rated at about 690 pages. The same supplies also fit the DeskJet 710C, DeskJet 712C and DeskJet 720C. Same-day shipping on most orders.
