Universal™ Chip Resetter for Epson cartridges will reset the "smart chip" on ALL Epson cartridges multiple times. Reset cartridge chips to factory specs, showing full ink levels and providing the same number of cycles as when the chip was new. This device works indefinitely and can be extended by simply replacing the 3 small batteries the same way you would replace a battery in a wrist watch. The following cartridges are compatible with the Universal™ Epson Chip Resetter: T007, T008, T009, T015, T016, T017, T018, T026, T027, T028, T029, T036, T037, T038, T039, T0321, T0322, T0323, T0324, T0421, T0422, T0423, T0424, ETC. Epson Stylus Printer model numbers: 780, 785EPX, 790, 810, 820, 830, 870, 870LE, 875DC, 875DCS, 890, 895, 1270, 1280, 1290, 2000P, C41, C42, C50, C60, C61, C62, C80, C82, 680, 777, 777I, ETC. Buy now just for $14.95 at http://kalvins.com