A liquid discharge head may reduce possibility that pressure from a discharge unit reaches a third channel and a fourth channel. The liquid discharge head includes a plurality of discharge units each including a discharge hole, a pressurization chamber communicating with the discharge hole, a first channel for liquid supply to the pressurization chamber, and a second channel for liquid collection from the pressurization chamber, a pressurizing part configured to pressurize the pressurization chamber, a third channel connected commonly to the first channels of the plurality of discharge units, the third channel for liquid supply to the discharge units, a fourth channel connected commonly to the second channels of the plurality of discharge units, the fourth channel for liquid collection from the discharge units, and a fifth channel connecting the discharge units and having channel resistance larger than channel resistance of the first channel and the second channel.

A liquid ejection head includes pressure chambers arranged in a first direction, a common channel, and a communicating portion communicating with the common channel and each of the pressure chambers. The common channel includes a supply portion, a return portion, and a connection portion connecting them in a second direction crossing the first direction. The liquid ejection head has a first vector directed from the supply portion via the connection portion toward the return portion and has a component in the second direction. The second vector is directed from the common channel via the communicating portion toward each of the pressure chambers and has a component in the second direction. The component in the second direction of the first vector and the component in the second direction of the second vector point in the same direction.

A liquid ejection head includes pressure chambers arranged in a first direction, a common channel, and a communicating portion communicating with the common channel and each of the pressure chambers. The common channel includes a supply portion, a return portion, and a connection portion connecting them in a second direction crossing the first direction. The liquid ejection head has a first vector directed from the supply portion via the connection portion toward the return portion and has a component in the second direction. The second vector is directed from the common channel via the communicating portion toward each of the pressure chambers and has a component in the second direction. The component in the second direction of the first vector and the component in the second direction of the second vector point in the same direction.

A liquid ejection head includes pressure chambers arranged in a first direction, a common channel, and a communicating portion communicating with the common channel and each of the pressure chambers. The common channel includes a supply portion, a return portion, and a connection portion connecting them in a second direction crossing the first direction. The liquid ejection head has a first vector directed from the supply portion via the connection portion toward the return portion and has a component in the second direction. The second vector is directed from the common channel via the communicating portion toward each of the pressure chambers and has a component in the second direction. The component in the second direction of the first vector and the component in the second direction of the second vector point in the same direction.