Patent ID: 9555653
Date: 2017-01-31
CPC Classifications: B41J

Claim:
1. An inspection apparatus for inspecting a liquid discharge head including an energy generation element configured to generate energy for discharging liquid, a wiring layer for supplying an electrical signal to the energy generation element, the wiring layer including a first wiring connected to one end of the energy generation element and a second wiring connected to the other end of the energy generation element, a first conductive protection film extending from the first wiring to the second wiring, and a second protection film having an electrical insulating property and provided between the wiring layer and the first protection film, comprising: a detection circuit configured to detect a potential of the first protection film when the electrical signal is supplied to the energy generation element; and a determination circuit configured to determine a driving state of the energy generation element from information about the potential detected by the detection circuit.