Patent ID: 7677700
Filing Date: 2010-03-16
Classification: B41J

Abstract:
1. A liquid discharge head comprising: a liquid discharge substrate including an energy generating element for generating liquid-discharging energy and a liquid discharge port; a flow path member of a resinous material fixed to the liquid discharge substrate and having at least a liquid supply path for supplying the liquid discharge substrate with a liquid; a sealing material of a resinous material for sealing a periphery of the liquid discharge substrate; a concave part formed on the flow path member for accommodating the liquid discharge substrate; and a support substrate which is adhered and fixed to a bottom face of the concave part, which supports and is adhered to a surface of the liquid discharge substrate at a side opposite to the liquid discharge port and which is prepared with a material having a Young's modulus higher than that of at least the liquid discharge substrate and having a linear expansion coefficient lower than that of the flow path member, wherein a distance L