1. EPSON cartridge:
    T0921/T0922/T0923/T0924

2.EPSON printer:
   C91/T26/TX106/TX109 etc

3.Auto-Reset Chip:
   (a)  Chips have the switch. Chip can be resetted when press the switch. It is not necessary to take out cartridge.
   (b)  Sensor quality is stable.
   (c)  There are connected chip and individual chip for selection.