Page Yield*: 450 For best results, store in a cool, dry place. Use within 18 months of purchase for optimal performance.*at 5% coverage (ISO/IEC standard) Includes original smart chip which has been reset to provide accurate ink monitoring Includes original smart chip which has been reset to provide accurate ink monitoring Compatible with Printer Models Epson Stylus C88,Epson Stylus CX3800,Epson Stylus CX3810,Epson Stylus CX4200,Epson Stylus CX4800,Epson Stylus CX5800f,Epson Stylus CX7800,Epson Stylus C68,Epson Stylus C88Plus Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.