C79 continuous ink supply system 1. With auto reset chip 2. Install and fill ink convenient 3.Save ... , cartridge quality are good.2. Combo chip( when black switch is down,that is, chip select self-sensor, can be ... detected by printer if it is upgrade,dial the black switch up ,that is, chip select original cartridge sensor,use ... T0731, T0732, T0733, T0734 continuous ink supply system with auto reset chip