Liquid discharge head

Abstract

A liquid discharge head includes a substrate including a plurality of nozzle arrays formed by arranging nozzles having heat generating elements generating thermal energy for discharging a liquid, and a plurality of common liquid chambers formed along the plurality of nozzle arrays and supplies the liquid to the plurality of nozzle arrays, the substrate being divided into a plurality of substrate portions by the plurality of common liquid chambers. The substrate includes a first substrate portion having a first nozzle array among the plurality of nozzle arrays and a second substrate portion having a second nozzle array different from the first nozzle array and a thermal capacity larger than that of the first substrate portion, and a heating area of the first heat generating element provided in the first nozzle array is smaller than that of the second heat generating element provided in the second nozzle array.

Dependencies are inferred from the claim text.