A:Answer Hi Gayle, 4,500 pages. Replacement and included ink bottle yields for the ET-2720 are based on the ISO/IEC 24712 pattern with Epson’s methodology. Actual ink yields will vary considerably for reasons including images printed, print settings, temperature and humidity. Yields may be lower when printing infrequently or predominantly with one ink color. All ink colors are used for printing and printer maintenance, and all colors must be available for printing. For more information, visit the Epson support site for the ET-2720. Regards, Mark - The Epson Team.