Liquid ejection head and liquid ejection apparatus

摘要

A liquid ejection apparatus includes a liquid ejection head including: an element substrate; a first recess having inner walls including a first side surface of the element substrate, a second side surface facing thereto, and a part of a fitting surface to which the element substrate is fitted; and a second recess having inner walls including a third side surface of the element substrate, which is a rear surface of the first side surface, a fourth side surface facing the third side surface, and another part of the fitting surface; and the liquid ejection apparatus also includes a wiping member configured to move from the second recess toward the first recess to wipe the ejection port surface. The first recess is provided with a sealing material to a level higher than the level of a sealing material in the second recess, in a direction of ejecting liquid.

主权项

1. A liquid ejection apparatus comprising:
a liquid ejection head including an element substrate having a plurality of ejection ports through which liquid is ejected, and a plurality of energy generating elements that generate energy for ejecting liquid from the plurality of ejection ports, a supporting member having a fitting surface to which the element substrate is fitted, a first recess having a plurality of inner walls including a first side surface of the element substrate, a second side surface facing the first side surface, the second side surface being a surface of the supporting member, and a part of the fitting surface, the first recess being recessed with respect to an ejection port surface of the element substrate having the plurality of ejection ports, and a second recess having a plurality of inner walls including a third side surface of the element substrate, which is a rear surface of the first side surface, a fourth side surface facing the third side surface, the fourth side surface being a surface of the supporting member, and another part of the fitting surface, the second recess being recessed with respect to the ejection port surface; and a wiping member configured to move in a direction from the second recess toward the first recess relative to the ejection port surface to wipe the ejection port surface, wherein the first recess is provided with a sealing material for preventing liquid from flowing into the first recess, and the second recess is not provided with a sealing material.