Patent ID: 8210655

Claim:
A liquid ejection head comprising: an energy application chamber for internally containing a liquid; a printing element, located in the energy application chamber for generating energy that is to be applied to the liquid contained in the energy application chamber; an ejection port, communicating with the energy application chamber, for ejecting the liquid to which the energy is applied by the printing element; and a liquid flow path used to supply the liquid from a liquid supply port to the energy application chamber, wherein walls defining the energy application chamber and formed along a first direction defined from the liquid supply port to the printing element are inclined inward, within the energy application chamber, relative to a second direction perpendicular to a printing element formation face on which the printing element is arranged, wherein walls defining the liquid flow path and formed along the first direction are inclined relative to the second direction, and wherein an angle at which the walls defining the liquid flow path are inclined relative to the second direction is smaller than an angle at which the walls defining the energy application chamber are inclined inward relative to the second direction, within the energy application chamber.