| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid discharge head which has both of discharge performance of a liquid and reliability. ! SOLUTION: A liquid discharge head includes: an element substrate including a substrate on which an energy generating element is arranged and which has a supply port for supplying a liquid into a flow channel, and a flow channel formation member which forms a flow channel between itself and the substrate and has a discharge port for discharging a liquid; a joint member having a first supply flow channel which is provided on a surface opposite to a surface of the element substrate on which the flow channel formation member is provided, and communicates with the supply port; and a support member having a second supply flow channel which is provided on a surface opposite to a surface of the joint member which contacts the element substrate, and communicates with the first supply flow channel. In the liquid discharge head, the joint member has a first opening corresponding to the supp |
