Liquid ejection head

A liquid ejection head comprising:

• a support member extending in a first direction;
• first and second supply path members arranged in the support member adjacent to each other along the first direction, each of which has a supply path extending in the first direction;
• and
• a print element board having an element configured to generate energy used for ejection of a liquid supplied from the supply paths of the first and second supply path members, and further having an ejection port through which the liquid is ejected,
• wherein the first supply path member includes an outlet port through which the liquid supplied to the supply path of the first supply path member flows out of the first supply path member,
• wherein the second supply path member includes an inlet port that receives liquid flowed out of the outlet port of the first supply path member and transmits the received liquid into the supply path of the second supply path member,
• wherein the outlet port is provided near an end portion of the supply path of the first supply path member on the side of the support member on which the second supply path member is provided,
• wherein the inlet port is provided near an end portion of the supply path of the second supply path member on the side of the support member on which the first supply path member is provided, and
• wherein the support member includes a first through hole communicating with the outlet port of the first supply path member, and a second through hole communicating with the inlet port of the second supply path member.