Patent ID: 9126402
Filing Date: 2015-09-08
Classification: B41J

Abstract:
1. An ink jet apparatus comprising: a plurality of actuators that correspond to a plurality of discharge ports, respectively, and discharge a liquid from the discharge ports according to driving signals input to input terminals; a driving signal source that outputs the driving signals; a driving selector that outputs a drive switch control signal for an actuator to be driven among the plurality of actuators; a plurality of drive switches that correspond to the actuators, respectively, connect or disconnect the input terminal of each of the actuators and the driving signal source according to the drive switch control signal for the actuator, and allow the driving signal to pass therethrough and input the driving signal to the input terminal when the input terminal and the driving signal source are connected; a detection circuit that detects a voltage of the input terminals when being connected to the input terminals; and a plurality of detection switches that correspond to the actuators, respectively, and connect or disconnect the input terminals of the actuators and the detection circuit on the basis of the drive switch control signals for the actuators or the driving signals passed through the drive switches corresponding to the actuators.