带两个开关的芯片，

1.用在D78/DX4050/DX7000F/DX6050/DX6000/DX5000/DX4000/C79/CX3900/CX5500/CX5600/CX5000/

CX6000/CX7000/CX4900/CX5900/CX6900CF/R270/R390/RX590/R390/R265/R360/RX560/R285/

R260/R380/R580/R280/1390/1400/1410/C91/CX4300....，不需要拔墨盒即可复位;

2.若打印机更新装上原装墨盒该连供仍可使用.