Abstract: A channel structure includes a base body having a first surface, a second surface that is opposite from the first surface, and a side surface that extends in a direction intersecting the first surface. The base body includes a first channel having a supply port into which a liquid is supplied, a liquid storing chamber formed in the first surface and storing the liquid, a second channel having a discharge port through which the liquid in the liquid storing chamber is discharged, and a pressure adjusting unit that supplies the liquid from the first channel to the liquid storing chamber according to pressure in the liquid storing chamber and that located between the first surface and the second surface. The supply port is formed in the second surface of the base body or formed in the side surface of the base body.

Abstract: A plurality of head chips including: a nozzle plate having a plurality of nozzles configured to eject a liquid in a first direction, and a case having one or more first flow paths communicating with at least a part of the plurality of nozzles; a holder to which the plurality of head chips are fixed, which includes metal or ceramics, and which has a plurality of second flow paths communicating with at least one of the plurality of first flow paths; and a heater configured to heat the holder.

Abstract: A flow passage member includes: a supply flow passage through which liquid flows; a filter provided on a path of the supply flow passage, the liquid being configured to pass through the filter; a fixing member which constitutes a part of the supply flow passage and to which the filter is fixed; and a first member which constitutes a part of the supply flow passage and to which the fixing member is fixed; wherein the fixing member is made of thermoplastic resin, and the first member is made of any of thermosetting resin, metal, and ceramic.

Abstract: 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.

Abstract: A channel member includes a liquid emission port coupled to a liquid introduction section to emit liquid to the liquid introduction section, and a liquid feeding port that receives liquid from outside to feed the liquid to the liquid emission port. The liquid emission port and the liquid feeding port have the same opening direction.

Abstract: A liquid ejecting head including a first-liquid ejecting portion, a second-liquid ejecting portion, a common supply flow path being supplied a liquid from a liquid reservoir, a first-individual supply flow path communicating the common supply flow path and the first-liquid ejecting portion to each other, a second-individual supply flow path communicating the common supply flow path and the second-liquid ejecting portion to each other, a first-filter provided in the first-individual supply flow path, and a second-filter provided in the second-individual supply flow path. In the liquid ejecting head, regarding flow path resistance in the first-individual supply flow path, flow path resistance in the first-filter is the largest, regarding flow path resistance in the second-individual supply flow path, flow path resistance in the second-filter is the largest, and the flow path resistance in the first-filter and the flow path resistance in the second-filter are the same.

Abstract: A liquid ejecting head unit including: an ejection surface including nozzles being arranged in a first-direction; and a flow-path-member including a flow path communicating with the nozzles, wherein the ejection surface has a planar shape including a first-portion and a second-portion, the first-portion and the second-portion are arranged in the first-direction with respect to each other, the first-portion spans across a center-line of a rectangle having a minimum area that surrounds the ejection surface, the center-line extending parallel to the first-direction, the second-portion is located adjacent to the first-portion in the first-direction and shifted away from the center-line in a second-direction that substantially perpendicular to the first-direction, the flow-path-member includes first-connecting ports, at least one of the first-connecting ports communicating with the flow path, and the first-connecting ports overlap the second-portion in plan view of the ejection surface and are shifted away from ea

Abstract: A liquid ejecting head unit configured to eject a liquid includes a flow channel member, and a liquid ejecting head configured to eject the liquid supplied from the flow channel member, in which the flow channel member includes a flow channel structure having a supply flow channel through which the liquid supplied from the outside flows, and a supply protrusion that protrudes from the flow channel structure and has a supply port for supplying the liquid from the outside to the supply flow channel, a wall surface of the supply flow channel is made of a resin, and at least a part of the supply protrusion is made of a metal.

Abstract: A first flow path is provided between the first layer and the second layer, a second flow path is provided between the second layer and the third layer, a filter chamber is provided inside the third layer, and the second layer is thinner than each of the first layer and the third layer.

Abstract: There is provided a liquid ejecting unit that ejects liquid from a plurality of nozzles, in which the planar shape of the ejecting face on which the nozzles are formed is a shape in which a first portion that passes through the center line parallel to the long side of the rectangle of the minimum area including the ejecting face and a second portion that does not pass through the center line are arranged in the direction of the long side.

Abstract: 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.

Abstract: A liquid ejecting head including: a first liquid ejecting portion configured to eject a liquid; a second liquid ejecting portion configured to eject a liquid; a first supply flow path configured to supply the liquid to the first liquid ejecting portion and the second liquid ejecting portion; and a temperature detection element for measuring a temperature of the liquid. The first supply flow path includes a common portion to which the liquid is supplied; a first branch portion that communicates with the common portion at a communication position, and that supplies the liquid from the common portion to the first liquid ejecting portion; and a second branch portion that communicates with the common portion at the communication position, and that supplies the liquid from the common portion to the second liquid ejecting portion. The temperature detection element is disposed at a vicinity of the communication position.

Abstract: A liquid ejecting head including a first-liquid ejecting portion, a second-liquid ejecting portion, a common supply flow path being supplied a liquid from a liquid reservoir, a first-individual supply flow path communicating the common supply flow path and the first-liquid ejecting portion to each other, a second-individual supply flow path communicating the common supply flow path and the second-liquid ejecting portion to each other, a first-filter provided in the first-individual supply flow path, and a second-filter provided in the second-individual supply flow path. In the liquid ejecting head, regarding flow path resistance in the first-individual supply flow path, flow path resistance in the first-filter is the largest, regarding flow path resistance in the second-individual supply flow path, flow path resistance in the second-filter is the largest, and the flow path resistance in the first-filter and the flow path resistance in the second-filter are the same.

Abstract: A channel structure includes a base body having a first surface, a second surface that is opposite from the first surface, and a side surface that extends in a direction intersecting the first surface. The base body includes a first channel having a supply port into which a liquid is supplied, a liquid storing chamber formed in the first surface and storing the liquid, a second channel having a discharge port through which the liquid in the liquid storing chamber is discharged, and a pressure adjusting unit that supplies the liquid from the first channel to the liquid storing chamber according to pressure in the liquid storing chamber and that located between the first surface and the second surface. The supply port is formed in the second surface of the base body or formed in the side surface of the base body.

Abstract: There is provided a liquid ejecting unit that ejects liquid from a plurality of nozzles, in which the planar shape of the ejecting face on which the nozzles are formed is a shape in which a first portion that passes through the center line parallel to the long side of the rectangle of the minimum area including the ejecting face and a second portion that does not pass through the center line are arranged in the direction of the long side.

Abstract: There is provided a liquid ejecting unit that ejects liquid from a plurality of nozzles, in which the planar shape of the ejecting face on which the nozzles are formed is a shape in which a first portion that passes through the center line parallel to the long side of the rectangle of the minimum area including the ejecting face and a second portion that does not pass through the center line are arranged in the direction of the long side.

Abstract: An ink jet head including a body portion including a pressure generating portion, and a nozzle that discharges ink, a relay substrate that relays between the body portion and a printer, a cable that sends an electric signal from the printer to the relay substrate, and a cover unit that covers a cable connector that electrically couples the relay substrate and the cables to each other. The cable is drawn out to a portion external to the ink jet head through an opening portion open on a gravitational direction side with respect to the cable connector.

Abstract: A head unit includes circulation heads disposed at different positions on an XY plane, supply pipes configured to supply liquid to the circulation heads, discharge pipes configured to discharge the liquid from the circulation heads to the outside, and flow path members connecting the circulation heads, the supply pipes, and the discharge pipes. Each circulation head includes a nozzle plate having nozzles. The nozzles include first nozzles on one end side in the X direction and second nozzles on the other end side in the X direction. During circulation, the liquid pressure in the first nozzles is higher than the liquid pressure in the second nozzles, and when the head unit is viewed from the Z direction in plan view, the first nozzles are disposed on both ends in the X direction or the second nozzles are disposed on both ends in the X direction.

Abstract: A channel member includes a liquid emission port coupled to a liquid introduction section to emit liquid to the liquid introduction section, and a liquid feeding port that receives liquid from outside to feed the liquid to the liquid emission port. The liquid emission port and the liquid feeding port have the same opening direction.

Abstract: A liquid ejecting head unit including: an ejection surface including nozzles being arranged in a first-direction; and a flow-path-member including a flow path communicating with the nozzles, wherein the ejection surface has a planar shape including a first-portion and a second-portion, the first-portion and the second-portion are arranged in the first-direction with respect to each other, the first-portion spans across a center-line of a rectangle having a minimum area that surrounds the ejection surface, the center-line extending parallel to the first-direction, the second-portion is located adjacent to the first-portion in the first-direction and shifted away from the center-line in a second-direction that substantially perpendicular to the first-direction, the flow-path-member includes first-connecting ports, at least one of the first-connecting ports communicating with the flow path, and the first-connecting ports overlap the second-portion in plan view of the ejection surface and are shifted away from ea