A liquid ejecting head includes a channel forming body including a plurality of individual channels, a first manifold and a second manifold. The plurality of individual channels includes: a nozzle; a pressure chamber which is arranged to be apart from the nozzle in a first direction; a descender communicating the pressure chamber and the nozzle with each other, and extending in the first direction; a return channel including a first return channel and a second return channel, extending in a direction crossing the first direction, and having one end connected to the descender; and a communicating channel including a first communicating channel, and connecting the other end of the return channel to the second manifold. The first communicating channel connects the first return channel to the second manifold and connects the second return channel to the second manifold.

The present disclosure provides a liquid guiding component and a using method and application thereof. The liquid guiding component includes a plurality of liquid guiding grooves, each of which includes at least one inlet end, at least one outlet end, and a groove wall connecting the inlet end and the outlet end, the liquid guiding component includes a first side and a second side arranged opposite to each other, each of said inlet ends is arranged as liquid inlet on the first side and each of the outlet ends is arranged as the liquid outlet on the second side, and the liquid guiding grooves are used to transport liquid from the inlet ends to the outlet ends. The liquid guiding component can be used to precisely control the movement direction of the ejected ink.

An inkjet head includes a channel unit and a piezoelectric actuator. The piezoelectric actuator includes a first piezoelectric plate, a first electrode, a second piezoelectric plate, a second electrode, and a conductive member. The first piezoelectric plate includes a first surface. The first electrode is disposed on the first surface, and includes a first extending portion. The second piezoelectric plate includes a second surface. The second electrode is disposed on the second surface, and includes a second extending portion. The conductive member includes a first conductive portion and a second conductive portion. The first conductive portion is disposed on the first surface. The second conductive portion is disposed on the second surface. The conductive portion covers, in a first direction, a spacing that is located between the first extending portion and the second extending portion in a second direction.

A fluidic die may include a substrate supporting a fluid actuator address line and first and second groups of fluid actuators connected to the fluid actuator address line. The first group of fluid actuators may include first and second types of fluid actuators having different operating characteristics. The second group of fluid actuators may include the first and the second types of fluid actuators. The fluid actuators of the first and second groups have addresses such that a fluid actuator of the first type in the first group and a fluid actuator of the second type in the second group are both enabled in response to a single enabling event on the fluid actuator address line.

A liquid ejection head includes: a pressure chamber communicating with a nozzle, the pressure chamber extending along a first axis; a liquid storage chamber that stores liquid which is supplied to the pressure chamber, the liquid storage chamber partially overlapping the pressure chamber when viewed in a direction of a second axis, which intersects the first axis; and a first communication flow path and a second communication flow path extending in a direction of the second axis and allowing the pressure chamber and the liquid storage chamber to communicate with each other.

A liquid ejecting head includes: a flow channel forming substrate that forms an individual flow channel including a nozzle and a pressure chamber, a first common liquid chamber, and a second common liquid chamber; and a pressure generating element that causes a pressure change in a liquid in the pressure chamber, in which the first common liquid chamber is coupled to the second common liquid chamber via the individual flow channel, a compliance of the first common liquid chamber is larger than a compliance of the second common liquid chamber, and in the individual flow channel, a flow channel resistance between a first coupling portion with the first common liquid chamber and the pressure chamber is smaller than a flow channel resistance between a second coupling portion with the second common liquid chamber and the pressure chamber.

In a liquid discharge head, a first pump and a second pump are arranged inside a channel, the channel includes a pressure chamber including an energy generating element, and liquid inside the pressure chamber is circulatable between inside and outside of the pressure chamber by the first pump or the second pump. The first pump is arranged on one side relative to a midpoint of the channel in an extending direction of the channel, and the second pump is arranged on another side relative to the midpoint of the channel in the extending direction of the channel.

A fluid ejection device includes a fluid ejection chamber having a drop ejecting element therein, a first fluid channel to communicate a first fluid with the fluid ejection chamber, a second fluid channel to communicate a second fluid different than the first fluid with the fluid ejection chamber, and a fluid pump communicated with one of the first fluid channel and the second fluid channel. As such, the fluid ejection chamber is to selectively eject drops of the first fluid, the second fluid, and a combination of the first fluid and the second fluid therefrom.

There is provided a liquid discharge head including: an individual channel member including individual channel rows; a first common channel member including first common channels and a first partitioning wall, and a damper joined to the first common channel member with adhesive. The damper has first portions that are elastically deformable and overlap with the first common channels and a second portion joined to the first partitioning wall and connected to the first portions. The second portion is thicker than the first portions.

A liquid ejecting head including nozzles ejecting a liquid, a flow path member including flow paths that communicate with the nozzles, and an electric substrate stacked on the flow path member in a first direction. The flow path member includes pipes that protrude in the first direction from a surface facing the electric substrate, the flow paths respectively being formed inside the pipes. Through holes through which the pipes are inserted are provided in the electric substrate. The through holes include a first through hole and a second through hole. The pipes include a first pipe that includes a first contact surface that contacts an internal circumferential surface of the first through hole and a second pipe that includes a second contact surface that contacts an internal circumferential surface of the second through hole.