Abstract: The sample introduction device includes a nebulizer that atomizes a sample liquid; a spray chamber that has one end into which a spray port part of the nebulizer is inserted and the other end from which at least a part of liquid droplets of the sample liquid sprayed from the spray port part is discharged to an outside; and a heating electromagnetic wave radiation unit that is arranged outside the spray chamber, wherein the heating electromagnetic wave radiation unit performs radiation of heating electromagnetic waves from the outside of the spray chamber toward at least a part of the spray chamber other than a part into which the spray port part of the nebulizer is inserted.

Abstract: A liquid jetting apparatus jetting a liquid onto a recording medium conveyed in a first direction includes head units arranged in a second direction orthogonal to the first direction. One head unit includes nozzle chips; one nozzle chip has a nozzle arrangement area wherein nozzles are aligned in a third direction crossing the first and second directions. The nozzle chip is arranged to be shifted relative to another nozzle chip in a direction crossing the first and second directions and different from the third direction. The head unit has a first overlapping portion wherein nozzle arrangement areas of first and second nozzle chips included in the nozzle chips partially overlap with each other in the first direction. The liquid jetting apparatus has a second overlapping portion wherein nozzle arrangement areas of third and fourth nozzle chips included in the head units partially overlap with each other in the first direction.

Abstract: 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.

Abstract: A liquid ejection head includes a plurality of first individual channels arranged in a first direction, a first common channel extending in the first direction and communicating with the first individual channels, and a second common channel located below the first common channel and extending in the first direction. The second common channel communicates with the first individual channels. Each of the first individual channels includes one of first nozzles, and one of first pressure chambers that communicate with the respective first nozzles and are located above the first nozzles. The first common channel and the second common channel overlap, in the vertical direction, with each other at a position above the first pressure chambers. Each of the first common channel and the second common channel at least partially overlaps, in the vertical direction, with the first pressure chambers.

Abstract: A liquid discharging head includes: individual channels each including a nozzle; an inflow channel communicated with the individual channels; an outflow channel communicated with the individual channels; an inflow-side filter provided on the inflow channel and dividing the inflow channel into a lower inflow area and an upper inflow area; an outflow-side filter provided on the outflow channel and dividing the outflow channel into a lower outflow area and an upper outflow area; an inflow port which is provided on the upper inflow area and through which the liquid is supplied to the inflow channel from outside thereof; an outflow port which is provided on the upper outflow area and through which the liquid is discharged from the outflow channel to outside thereof; and a bypass channel connecting the upper inflow area and the upper outflow area.

Abstract: A liquid ejection head includes pressure chambers arranged in a first direction, supply communicating portions, a supply channel, return communicating portions and a return channel. The supply channel includes a first and a second supply portion. The return channel includes a first and a second return portion. The second return portion extends from the first return portion toward the pressure chambers in a second direction orthogonal to the first direction and is located to a side of the supply channel opposite to the pressure chambers in a third direction orthogonal to both the first and the second direction. The second supply portion extends from an end portion of the first supply portion in the third direction toward the pressure chambers in the second direction. The supply communicating portions are located adjacent to the second supply portion in the third direction.

Abstract: A liquid ejection head includes first individual channels arranged in a first direction, a first common channel extending in the first direction and communicating with the first individual channels, and a second common channel located below the first common channel and extending in the first direction. The second common channel communicates with the first individual channels. Each of the first individual channels includes one of first nozzles, and one of first pressure chambers that communicate with the respective first nozzles and are located above the first nozzles. The first common channel and the second common channel overlap, in a vertical direction, with each other at a position above the first pressure chambers. The first common channel overlaps, in the vertical direction, with the first pressure chambers. The second common channel does not overlap, in the vertical direction, with the first pressure chambers.

Abstract: A liquid discharge head, includes an individual channel, and first and second common channels. The individual channel includes: a nozzle; a pressure chamber; a connection channel; a first communication channel; and a second communication channel. A first vector is defined such that a starting point and ending point are located on the connection channel, and a second vector is defined such that a starting point and an ending point are located on the second communication channel. A first angle formed by a projection vector of the first vector onto the first plane and a projection vector of the second vector onto the first plane is less than 90°. A second angle formed by a projection vector of the first vector onto the second plane and the second vector is less than 90°.

Abstract: A liquid discharge head includes: a pressure chamber; a nozzle connected to the pressure chamber and overlapping in a first direction with the pressure chamber; a first throttle channel connected to an end at a first side in a second direction, which is orthogonal to the first direction, of the pressure chamber and extending in the second direction; and a second throttle channel connected to an end at a second side in the second direction of the pressure chamber and extending in the second direction. In each of the first throttle channel and the second throttle channel, a length in a third direction orthogonal to the first direction and the second direction is longer than a length in the first direction.

Abstract: A liquid ejection head includes an array of first nozzle holes, an array of second nozzle holes, first pressure chambers to which an ejection pressure is applied for liquid ejection from the first nozzle holes, second pressure chambers to which an ejection pressure is applied for liquid ejection from the second nozzle holes, and a manifold. The manifold includes a first channel communicating with the first pressure chambers, a first opening located at the first channel and through which liquid enters from an exterior, a second channel communicating with the second pressure chambers, a second opening located at the second channel and through which liquid exits to the exterior, a first communication passage communicating one end of the first channel with one end of the second channel, and a second communication passage communicating the other end of the first channel with the other end of the second channel.

Abstract: A liquid jetting apparatus includes: a liquid jetting head having: a plurality of kinds of individual channels, a jetting surface formed with a plurality of kinds of nozzles from which a plurality of kinds of liquids are jetted, respectively, a plurality of kinds of inflow channels, a plurality of kinds of outflow channels; valves provided at least on the plurality of kinds of inflow channels; a wiper configured to be movable relative to the liquid jetting head in a direction along the jetting surface; a first motor configured to move the liquid jetting head and the wiper relative to each other; and a controller. The controller executes a wiping by driving the first motor in a state that the valves are closed.

Abstract: There is provided a liquid discharge head including: a plurality of pressure chambers aligned in a first direction so as to form first and second pressure chamber groups arranged side by side in a second direction crossing the first direction; a first common channel communicating with pressure chambers constructing the first pressure chamber group; a second common channel communicating with pressure chambers constructing the second pressure chamber group; a first connecting channel connecting one end in the first direction of the first common channel and one end in the first direction of the second common channel; and a second connecting channel connecting the other end in the first direction of the first common channel and the other end in the first direction of the second common channel. Each of the first and second connecting channels overlaps, in a third direction, with any one of the plurality of pressure chambers.

Abstract: There is provided a liquid discharge head including: a plurality of pressure chambers including pressure chambers aligned in a first direction orthogonal to a vertical direction so as to form a first pressure chamber group, and pressure chambers aligned in the first direction so as to form a second pressure chamber group arranged side to side relative to the first pressure chamber group in a second direction; a return channel extending in the first direction; and return connecting channels each connecting the return channel and one of the plurality of pressure chambers to each other, wherein a height of an upper surface of each of the return connecting channels is not less than a height of an upper surface of one of the plurality of pressure chambers which is connected to the return channel by each of the return connecting channels.

Abstract: A liquid jetting apparatus includes: liquid jetting heads which are arranged along a predetermined arrangement direction and each of which has a first nozzle to jet a first liquid and a second nozzle to jet a second liquid, a first tank in which the first liquid is stored, a second tank in which the second liquid is stored, first supply channels which connect the first tank and the liquid jetting heads, second supply channels which connect the second tank and the liquid jetting heads, first return channels which connect the liquid jetting heads and the first tank, and second return channels which connect the liquid jetting heads and the second tank. The first tank and the second tank are arranged to deviate from each other in the arrangement direction.

Abstract: A liquid ejection head includes a plurality of sets of a first row, a second row, and a flow path in communication with the first row and the second row. Each of the plurality of sets is provided for each respective one of a plurality of kinds of liquids different from one another. The first row includes a plurality of first pressure chambers. The second row includes a plurality of second pressure chambers. The second row is positioned beside the first row. The flow path is in communication with the plurality of first pressure chambers and the plurality of second pressure chambers. The flow path includes a plurality of first communication passages, a plurality of second communication passages, a plurality of third communication passages, a plurality of fourth communication passages, a first manifold, a second manifold, and a common manifold.

Abstract: A liquid discharge head includes an individual channel which includes: a nozzle; a pressure chamber; a descender of which one end in the first direction is nearer to the nozzle than the other end; and a second connecting channel connecting a second common channel and the one end of the descender. A central axis of the nozzle is positioned between the second common channel and a central axis of the descender in the second direction. The descender includes a first portion including the one end and a second portion positioned between the pressure chamber and the first portion in the first direction. In an end, of the descender, opposite to the second connecting channel in the second direction, an inner wall defining the one end of the first portion protrudes toward the second connecting channel in the second direction beyond an inner wall defining the second portion.

Abstract: A liquid discharging head, having a plurality of individual flow paths, a common flow path, a damper, a heater pattern, a heat source, and a connecting pattern, is provided. The individual flow paths are arrayed in a first direction. The common flow path extends in the first direction throughout the individual flow paths and is connected with the individual flow paths. The damper extends in the first direction throughout the individual flow paths. A part of the damper forms an inner face that defines an end of the common flow path in a second direction. The heater pattern is provided to the damper. The connecting pattern connects the heater pattern with the heat source. In a range, in which in the first direction the individual flow paths are arranged, the heater pattern extends in the first direction without inclining with respect to the first direction at 45 degrees or larger.

Abstract: There is provided a liquid discharge head including: first and second common channels extending in a first direction; and a plurality of individual channels each including: a supplying part, a descender part, and a returning part. The returning part includes: a throttle part and a wide part. Each of a plurality of nozzles is located at a position at which each of the plurality of nozzles overlaps with the wide part in a second direction. At a throttle-starting position which is a boundary between the throttle part and the wide part, a length in the second direction of the throttle part and a length in the second direction of the wide part are same.

Abstract: A liquid ejection head includes pressure chambers arranged in a first direction, first communicating portions, a first common channel extending in the first direction, second communicating portions, a second common channel extending in the first direction, and a damper film. The second common channel includes a first portion and a second portion connecting the first portion and the second communicating portions. The second portion extends from the first portion in a second direction orthogonal to the first direction toward the pressure chambers and is located to a side of the first common channel opposite to the pressure chambers in a third direction orthogonal to the first direction and the second direction. The damper film is located to a side of the second portion opposite in the third direction to the first common channel.

Abstract: There is provided a liquid discharge head, including: a channel member that includes a first plate and a second plate and is formed having individual channels and a common channel. The first plate is formed having nozzles. The second plate has a first surface and a second surface at a side opposite to the first surface. The second surface of the second plate is joined to the first plate. The second plate has through holes passing through the second plate from the first surface to the second surface. The second plate is formed having first recesses having ends connected to the through holes. The individual channels include: the nozzles; pressure chambers; descenders defined by the through holes and connecting the nozzles and pressure chambers; and communication channels defined by the first recesses and allowing the descenders to communicate with the common channel. The first recesses are formed in the first surface.