Firing circuit for thermal inkjet-printing nozzle

The heat inkjet printing nozzle used for electric circuit (100) comprises a heating resistor (104) and a switch (102). The heating resistor making the toner heating toner from the nozzle flat-tire. The heating resistor with a first end and second end; the second end and is connected. The opening of for controlling heating resistor. The switch with a first end and second end, wherein first end and positioning source connected, the second end and heating resistor first looks carefully the connecting. Switch of the flow groove tool, therefore rounding connected with the heating resistor of the late is arrival said constant current unusually.