Inkjet recording apparatus

Abstract

Termination resistors are connected to second signal lines, respectively. A plurality of piezoelectric elements are respectively supplied with a plurality of drive signals corresponding to a plurality of control signals received by a plurality of receiving circuits. In a control device, a test voltage is supplied to a plurality of test resistors from a test voltage output circuit, and the plurality of test resistors, together with the termination resistors, respectively constitute a plurality of voltage dividing circuits. A divided voltage detection circuit detects an output voltage of each voltage dividing circuit. A control circuit controls an operating voltage output circuit, a plurality of control signal output circuits, and a test voltage output circuit so as to be in a test state, and determines whether an electrical connection state is normal or abnormal depending on a detection result of the divided voltage detection circuit in the test state.