Patent ID: 8876242

Claim:
A liquid ejection head, comprising: a liquid ejection head substrate, having a front face having a plurality of first print elements for generating energy for ejecting liquid from first ejection openings and a plurality of second print elements for generating energy for ejecting liquid from second ejection openings, and provided with a supply port for supplying liquid from a back face through the front face; a flow path forming member having a plurality of liquid flow path walls in communication with the supply port and each of the ejection openings of the plurality of the first ejection openings and the plurality of the second ejection openings, and forming the flow paths by being connected to the liquid ejection head substrate; and a heating element, for heating the liquid ejection head, provided so as to surround the supply port, wherein, viewed from a direction perpendicular to the front face, the plurality of first print elements are positioned between the heating element and the supply port, and the plurality of second print elements are positioned at positions farther from the supply port than the heating element is positioned from the supply port.