The HP DeskJet 4121e uses remanufactured high yield cartridges: black 3YM57AN (67XL), rated at about 650 pages, and tri-color 3YM58AN, rated at about 450 pages. A 2-pack of remanufactured tri-color ink, 3YP31BN (67XL), is also available. The same supplies also fit the DeskJet 2710e, DeskJet 2720e and DeskJet 2721e. Same-day shipping on most orders.
