Compatible with: HP: DesignJet T120, & DesignJet T520 For best results, store in a cool, dry place. Use within 18 months of purchase for optimal performance. This professionally remanufactured cartridge for HP 711 has a 'smart chip' that makes continuous adjustments to optimize print quality and enhance reliability and cost effectiveness as well as monitor ink levels. Page Yield*: 80. *at 5% coverage (ISO/IEC standard) Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.