B41J2/1429

METHOD AND APPARATUS FOR DISPENSING LIQUID DROPLETS

A liquid dispensing element is provided. The element comprising; a dispensing plate comprising a plurality of orifices; the dispensing plate at least partially defining a fluid flow path; a plurality of piezoelectric transducers each comprising a piston configured to move perpendicular to the dispensing plate between a first position wherein the piston is close to the dispensing plate and a second position wherein the piston is further from the dispensing plate. The movement between the first and second positions results in the ejection of a droplet of fluid via a surface cavitation droplet ejection process such that the diameter of the droplet is less than a diameter of the orifice.

LIQUID DISCHARGE HEAD, AND RECORDING DEVICE USING THE SAME

A liquid discharge head is configured to achieve decrease in temperature difference in the liquid discharge head, and includes a recording device including the liquid discharge head. The liquid discharge head includes a channel member having a plurality of discharge holes, a plurality of pressurization chambers, and a plurality of common channels, and a plurality of pressurizing parts. The plurality of common channels extends in a first direction and configures a common channel group aligned in a second direction crossing the first direction, the common channels are connected with the plurality of pressurization chambers disposed along the common channels among the plurality of pressurization chambers, and the channel member is disposed outside, in the second direction, with respect to the common channel group, and further includes a first end channel extending in the first direction, and the first end channel is lower in channel resistance than the common channels.

LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS
20170246868 · 2017-08-31 · ·

A liquid ejecting head includes a first case that houses a flow path member that is provided with a liquid flow path, a second case that includes a head unit, a seal member that includes a connecting portion that seals and liquid-tightly connects the liquid flow path on a first case side and a liquid flow path on a second case side. The liquid ejecting head ejects a liquid supplied from the flow path member from a nozzle of the head unit. A flow path-isolating member having higher gas barrier property than the seal member is disposed between the first case and the seal member. The flow path member is disposed in a sealed space that is defined in the first case by a flow path-isolating member being joined to the first case.

LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS

A liquid ejecting head supported by a support body includes: a first head chip; a holder having a holding portion holding the first head chip and a flange portion; and a heater heating the holding portion, in which the holding portion has a heat receiving portion receiving heat from the heater, and a shortest path of heat transferred through the holder from the heat receiving portion to the flange portion is bent or curved at two or more points.

Liquid ejecting unit and liquid ejecting apparatus

A liquid ejecting unit including a flow path structure into which a liquid flow from a liquid reservoir that temporarily stores the liquid, a liquid ejecting head coupled to the flow path structure and including a nozzle for ejecting the liquid supplied from the flow path structure, and a heating portion heating the liquid inside the flow path structure.

Liquid ejecting head and liquid ejecting apparatus

A liquid ejecting head including: a liquid ejecting portion configured to eject a liquid; a supply flow path configured to supply the liquid to the liquid ejecting portion; and a discharging flow path configured to discharge the liquid from the liquid ejecting portion, in which a supply portion along a horizontal plane in the supply flow path and a discharging portion along the horizontal plane in the discharging flow path have different positions with respect to a direction perpendicular to the horizontal plane.

Liquid discharging head
11090936 · 2021-08-17 · ·

A liquid discharging head, having individual flow paths, a first manifold, a second manifold, a third manifold, a connecting flow path, and a bypass, is provided. The first manifold extends in a first direction and is provided commonly to the individual flow paths. The second manifold and the third manifold are located on one side and the other side of the first manifold in a second direction. The second manifold and the third manifold are provided commonly to a part of the individual flow path and another part of the individual flow path, respectively. The connecting flow path partly overlaps the first manifold in a vertical direction and connects one end of the second manifold and one end of the third manifold on one side in a third direction. The bypass extends in the vertical direction and connects the first manifold and the connecting flow path.

Liquid ejecting head and liquid ejecting apparatus

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.

Liquid ejecting head, liquid ejecting apparatus, and method of manufacturing liquid ejecting head
11020970 · 2021-06-01 · ·

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.

Liquid Discharging Head
20200406618 · 2020-12-31 ·

A liquid discharging head, having individual flow paths, a first manifold, a second manifold, a third manifold, a connecting flow path, and a bypass, is provided. The first manifold extends in a first direction and is provided commonly to the individual flow paths. The second manifold and the third manifold are located on one side and the other side of the first manifold in a second direction. The second manifold and the third manifold are provided commonly to a part of the individual flow path and another part of the individual flow path, respectively. The connecting flow path partly overlaps the first manifold in a vertical direction and connects one end of the second manifold and one end of the third manifold on one side in a third direction. The bypass extends in the vertical direction and connects the first manifold and the connecting flow path.