A recording head includes an ink ejection portion and an ink holding portion. The ink holding portion includes a sheet portion and a holding portion. The sheet portion has an upper end side fixed to the ink ejection portion and a lower end side movable in a direction of coming closer to or separating away from a side surface of the ink ejection portion. The holding portion is located at a lower end portion of the sheet portion on the ink ejection portion side, is disposed to come into contact with or close to the side surface of the ink ejection portion, and is configured to hold an ink in an adjacent region with respect to the ink ejection portion.

A head unit includes a recording head, a head-side frame, a unit frame, a first head mounting member, a second head mounting member, a head angle adjustment mechanism, and an urging member. The unit frame is configured to hold the recording head on both side surfaces of a main frame standing along a width direction orthogonal to a conveyance direction of a recording medium. The urging member is arranged on a side opposite to an opposing surface of the first head mounting member and the second head mounting member with respect to the main frame, and is configured to urge the head-side frame in a direction of separating away from the main frame, A counteraction of a pressing force that acts on the head-side frame from the urging member acts on the first head mounting member and the second head mounting member from the head-side frame.

There is provided a liquid ejecting apparatus including: a liquid ejecting head having an ejection surface including a first nozzle row configure to eject a first ink and a second nozzle row configure to eject a second ink; and a support configured to support the liquid ejecting head in an inclined posture in which the ejection surface is inclined with respect to a horizontal plane, in which the first nozzle row is positioned above the second nozzle row with respect to a vertical direction in a state where the support supports the liquid ejecting head in the inclined posture, one or both of the first ink and the second ink contain a moisturizer, and a thickening resistance of the first ink is higher than a thickening resistance of the second ink.

A liquid discharge head includes: a nozzle plate having: a nozzle from which a liquid is to be discharged in a liquid discharge direction; and a nozzle face having the nozzle, the nozzle face directed in the liquid discharge direction; a nozzle protector configured to cover a portion of the nozzle face other than the nozzle; and a channel substrate including: a bonding part bonded to the nozzle protector with an adhesive; and a recess in a transverse portion of the bonding part extending in a transverse direction of the liquid discharge head, the recess filled with the adhesive.

A method for producing a shaped object, the method comprising: laminating a photosensitive resin composition on an inorganic material layer of a substrate having the inorganic material layer on a surface thereof; performing a patterned exposure of the photosensitive resin composition using an i-line; and curing a pattern-exposed portion and removing an unexposed portion to form a shaped object in which a cured product of the photosensitive resin composition is formed on the substrate, wherein the photosensitive resin composition comprises an epoxy resin, at least one cationic polymerization initiator with a molar extinction coefficient in an i-line of less than 500 L.Math.mol.sup.−1.Math.cm.sup.−1 and at least one sensitizer with a molar extinction coefficient in an i-line of 500 L.Math.mol.sup.−1.Math.cm.sup.−1 or more.

A liquid ejecting head includes head chips configured to eject a liquid toward a medium in a first-direction, in which, when a width direction of the medium is a second-direction, a direction orthogonal to the first-direction and the second-direction is a third-direction, and a direction perpendicular to the first-direction and intersecting the second-direction and the third-direction is a fourth-direction, the head chips include a first-chip group in which first head-chips are arranged side by side in the second-direction, the first-head chip having a first-nozzle row formed by arranging first-nozzles side by side in the fourth-direction, and a second-chip group in which second-head chips are arranged side by side in the second-direction, the second-head chip having a second-nozzle row formed by arranging second-nozzles side by side in the fourth-direction, and the first-chip group is arranged side by side in the third-direction with respect to the second-chip group.

A liquid jetting apparatus includes a recording head unit including nozzles; a moving mechanism configured to alternately perform a scanning operation of moving the recording head unit in a scanning direction while causing the recording head unit to discharge a liquid and a sub-scanning movement operation of moving the recording head unit or the recording medium in a sub-scanning direction without causing the recording head unit to discharge the liquid; a gradation setting unit configured to set gradation on portions of image data corresponding to setting regions at ends of the recording head unit; an irregular pattern setting unit configured to set an irregular pattern on the image data to randomize a dot ratio indicating the number of dots per unit area; and a head discharge drive unit configured to cause the nozzles to discharge the liquid based on the image data.

A head chip, a liquid jet head, a liquid jet recording device, and a method of manufacturing a head chip each capable of ensuring the tolerance of the displacement between nozzle holes and communication holes while ensuring the bonding area between an actuator plate and an intermediate plate are provided. The head chip according to an aspect of the present disclosure includes an actuator plate, a nozzle plate disposed so as to be opposed to the actuator plate, and an intermediate plate disposed between the actuator plate and the nozzle plate. The communication holes each include a groove part having a lower-side opening part opening toward the nozzle hole, and a penetrating part having an upper-side opening part opening toward an ejection channel. A dimension in the X direction in the upper-side opening part is larger than a dimension in the X direction in the upper-side opening part, and a dimension in the X direction in the upper-side opening part is no larger than a dimension in the X direction of the channel opening part opening on a channel opening surface of the ejection channel.

A head chip prevented from deteriorating in printing quality is provided. The head chip is provided with an intermediate plate which has a plurality of columns of communication hole groups for each channel column, the communication hole group having communication holes individually communicated with ejection channels of an actuator plate and arranged in a line in an X direction. The communication holes adjacent to each other in the X direction are arranged so as to be shifted in a Y direction from each other. The intermediate plate is provided with a non-penetrating groove closed by a nozzle plate, and a penetrating hole communicated with the non-penetrating groove, and communicated with an outside of the head chip through a non-ejection channel. A part of the non-penetrating groove is located in an inter-communication hole region. A minimum gap in the X direction between an opening edge of the communication hole and the non-penetrating groove in the inter-communication hole region is larger than a minimum gap in the X direction between the opening edge of the communication hole and the non-ejection channel.

A fluid jet ejection device, a method of making a fluid jet ejection head, and a method of improving the plume characteristics of fluid ejected from the fluid jet ejection head. The pharmaceutical drug delivery device includes a cartridge body; and a fluid jet ejection cartridge disposed in the cartridge body. The fluid jet ejection cartridge contains a fluid and an ejection head attached to the fluid jet ejection cartridge. The ejection head contains a plurality of fluid ejectors thereon and a nozzle plate having a plurality of fluid ejection nozzles therein associated with the plurality of fluid ejectors. At least one of the plurality of fluid ejection nozzles has an orthogonal axial flow path relative to a plane defined by the nozzle plate and at least one of the plurality of fluid ejection nozzles has an angled axial flow path relative to a plane define by the nozzle plate.