... ,with newwest ARC chips 3,each chip had reset button 4,stable quality 5,easy to reseting ... t252,with newwest ARC chips3,each chip had reset button4,stable quality5,easy to resetingT25 Refillable cartridges ... ,you only need to press the reset button,we designed the reset button on the top of each chip ... seperate chips of these models were not having this reset button on each chips ,and of course you ...