Page Yield*: 3,700* per cartridge For best results, store in a cool, dry place. Use within 18 months of purchase for optimal performance. per cartridge *Average cartridge Page Yield* in accordance with ISO IEC 24711. *at 5% coverage (ISO/IEC standard) These remanufactured cartridges are each conveniently equipped with a smart chip that allows you to monitor and track your ink levels Compatible with the HP Business Inkjet, Color Inkjet CP, Designjet, OfficeJet, OfficeJet Pro, and Professional Printers (**see PRODUCT DESCRIPTION for all compatible printer model numbers**) Color: Black Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.