Abstract: A drive signal includes a first drive signal and a second drive signal. The first drive signal includes a prior pulse section including a first contraction element and a discharging pulse section including a first expansion element pulling in a meniscus and the second contraction element discharging a droplet of liquid from the nozzle orifice. The second drive signal includes the discharging pulse section and a vibration control pulse section including a second expansion element controlling a residual vibration of the meniscus. A piezoelectric element is driven with the first drive signal when viscosity of the liquid is equal to or more than a first set value and is driven with the second drive signal when the viscosity is equal to or less than a second set value.

Abstract: There is provided a liquid ejecting head in which a flow path width Wc of a pressure chamber is equal to or larger than 60 ?m, and when a-50% average particle diameter of a quasi-diameter obtained based on a maximum projected area of glitter pigment is assumed to be R50, a maximum particle diameter of the quasi-diameter is assumed to be Rmax, and a thickness of the glitter pigment for the quasi-diameter is assumed to be Z, equations of 0.8?R50?1.1, 0.2>Z/R50?0.02, and Rmax/Wc<0.1 are satisfied.

Abstract: A recording apparatus includes a head, wherein a manifold in which an ink flows, and a plurality of ink flow paths divided from the manifold and arranged in a first direction are formed in the head; a nozzle opening portion discharging the ink flowing from the manifold is formed in the ink flow path; when a maximum area is C1 and a minimum area is C2 in a cross section of the ink flow path including the first direction and a vertical direction, except a cross section including the nozzle opening portion, the C1 is more than once and equal to or less than 3.5 times the C2; and the ink contains a flaky pigment having an average thickness of 5 nm or more and 50 nm or less and a 50% average particle diameter of an equivalent circle diameter of 0.5 ?m or more and 2.1 ?m or less.

Abstract: Disclosed is a liquid ejecting apparatus, and a method of controlling the liquid ejecting apparatus, whereby at a timing at which temperature detection and ejection pulse change are subsequently performed, a frequency of execution of temperature detection and driving pulse change differs according to whether temperature detected by the temperature sensor is in a first temperature range in which a degree of change in viscosity of ink for change in temperature is relatively high or in a second temperature range in which the degree of the change in viscosity for the change in temperature is relative stable. More specifically, in the first temperature range, the frequency of execution of temperature detection and driving pulse change is high compared to the second temperature range.

Abstract: A recording head that is configured to eject ink containing tabular particles from nozzles includes pressure chambers, a pressure generating unit that generates pressure change in the pressure chambers, a reservoir that communicates with the pressure chambers, and an ink supply path that connects the pressure chambers and the reservoir, wherein a plurality of protrusions are formed on an inclined surface which is continuous with a wall of the pressure chambers and a wall of the ink supply paths at the boundary between the pressure chambers and the ink supply paths where a flow path cross-sectional area changes, and the plurality of protrusions project into the flow path from the wall surface.

Abstract: A temperature sensor provided to a recording head detects a temperature when the recording head relatively moves outside an opposite region opposite to a platen heater. A driving signal generating circuit compensates an ejection pulse in accordance with the detected temperature.

Abstract: A nozzle portion in a recording head includes a first nozzle portion of which cross-sectional area is a first area and which is formed at the side of a pressure generation chamber and a second nozzle portion of which cross-sectional area is a second area which is smaller than the first area, which is formed to be continuous to the first nozzle portion through a step portion and of which front end portion is a nozzle opening. Further, when a cross-sectional area of an ink supply path is set to Ss, a cross-sectional area of the first nozzle portion is set to Sn, a flow path resistance of the first nozzle portion is set to Rn?, and a flow path resistance of the second nozzle portion is set to Rn, relationships of Sn/Ss?1/3 and Rn?/Rn?0.6 are satisfied.

Abstract: After one ink of a white ink or a silver ink is ejected in a predetermined position of a recording medium such as a piece of recording paper to form a base layer, the other ink thereof is ejected on the base layer to form an intermediate layer, and a clear ink is ejected on the intermediate layer to form an epidermal layer.

Abstract: A liquid ejecting apparatus has a head component that ejects a liquid through nozzle openings to attach the liquid to an object. The liquid contains a particulate material having a particle size of 200 nm to 1 ?m, both inclusive, and the head component discharges the liquid in droplets weighing 1 ng to 7 ng, both inclusive, in a way that the droplets reach the object at a velocity of 5 m/s to 9 m/s, both inclusive.

Abstract: A liquid ejecting apparatus has a head component that ejects a liquid through nozzle openings to attach the liquid to an object. The liquid contains a tabular grain material, and the head component discharges the liquid in droplets weighing 1 ng to 7 ng, both inclusive, in a way that the droplets reach the object at a velocity of 5 m/s to 8 m/s, both inclusive.

Abstract: Provided is a liquid ejecting method, including: ejecting a liquid from a liquid ejecting head, wherein the viscosity of the liquid is in a range from 6 mPa·s to 20 mPa·s, wherein the liquid ejecting head includes: nozzles which eject the liquid; a pressure chamber which applies a pressure variation to the liquid in order to eject the liquid from the nozzles; and a supply unit which communicates with the pressure chamber and supplies the liquid to the pressure chamber, and wherein the opening area of the nozzles on the side in which the liquid is ejected is 1/10 or less of the opening area of the opening of the supply unit on the pressure chamber side.

Abstract: After one ink of a white ink or a silver ink is ejected in a predetermined position of a recording medium such as a piece of recording paper to form a base layer, the other ink thereof is ejected on the base layer to form an intermediate layer, and a clear ink is ejected on the intermediate layer to form an epidermal layer.

Abstract: There is provided a liquid ejecting head in which a flow path width Wc of a pressure chamber is equal to or larger than 60 ?m, and when a-50% average particle diameter of a quasi-diameter obtained based on a maximum projected area of glitter pigment is assumed to be R50, a maximum particle diameter of the quasi-diameter is assumed to be Rmax, and a thickness of the glitter pigment for the quasi-diameter is assumed to be Z, equations of 0.8?R50?1.1, 0.2>Z/R50?0.02, and Rmax/Wc<0.1 are satisfied.

Abstract: A liquid ejecting apparatus includes a liquid ejecting head which is capable of ejecting a photo-curable liquid to be cured by irradiation with light from nozzles which open at a nozzle surface of a nozzle-forming member; a wiping unit for wiping the nozzle surface with a wiping member in contact with the nozzle surface, a portion of the wiping member in contact with the nozzle surface being made of cloth; and a heating mechanism for generating heat to heat the nozzle surface; wherein the wiping member is capable of wiping the nozzle surface in a state in which an ink splash of a photo-curable liquid attached on the nozzle surface has been softened by heating of the heating mechanism.

Abstract: A liquid ejecting head includes: a pressure generating chamber to which liquid is supplied through a liquid supply channel; a pressure generating unit that generates a variation in pressure in the pressure generating chamber; a nozzle opening that ejects the liquid discharged from the pressure generating chamber according to the variation in pressure to the outside; and a flow channel for circulation that is formed in the nozzle opening side rather than the pressure generating chamber and separates a part of the liquid discharged from the pressure generating chamber. When Ms, Mn, and Mc each are inertances of the liquid supply channel, the nozzle opening, and the flow channel for circulation, a relationship of Ms?(1/Mn+1/Mc)?1 is established.

Abstract: A liquid ejecting head includes a nozzle; a pressure chamber communicating with the nozzle; a pressure chamber substrate having pressure chambers defined by partition walls; a pressure generator generating pressure change in liquid inside the pressure chamber; and a bottom joined to the pressure chamber substrate by adhesive; and an organic solvent-based ink ejected from the nozzle by driving a piezoelectric element and generating the pressure change in the pressure chamber, and when a width of the pressure chamber in an arrangement direction of the pressure chambers is W and a width of the adhesive in the arrangement direction of the pressure chambers in a state where the adhesive has flowed out from between a lower end portion of the partition wall and the bottom to the pressure chamber side and is then solidified is L, the following expression is satisfied, 0.05?L/W?0.3.

Abstract: After a gloss-based liquid is ejected from a liquid ejection head, which ejects liquid from nozzles of a nozzle row, to a predetermined position on a landing target to form a glossy layer, a white-based liquid is ejected onto the glossy layer to form a white layer, the ejection amount of the gloss-based liquid being greater than the ejection amount of the white-based liquid.

Abstract: A liquid ejecting head includes a pressure generation chamber to which ink containing a flat plate-like particle is filled, a piezoelectric element generating pressure change on the ink in the pressure generation chamber, and a nozzle plate having a nozzle for discharging the ink from the pressure generation chamber due to the pressure change. The nozzle includes a first nozzle portion at an ink discharge surface side, and a second nozzle portion communicating with the first nozzle portion and formed at the pressure generation chamber side. When an opening diameter of the first nozzle portion at the discharge surface side is ?1 and an opening diameter of the second nozzle portion at the pressure generation chamber side is ?2, the nozzle satisfies ?2/?1?1.4.

Abstract: A liquid discharging apparatus is provided, which including: a pressure chamber communicating with a liquid supply portion and each nozzle; an element that performs an operation for providing change of pressure to liquid within the pressure chamber; and a pulse generating section that generates a pulse of which a voltage is changed to operate the element.

Abstract: A recording head that is configured to eject ink containing tabular particles from nozzles includes pressure chambers, a pressure generating unit that generates pressure change in the pressure chambers, a reservoir that communicates with the pressure chambers, and an ink supply path that connects the pressure chambers and the reservoir, wherein a plurality of protrusions are formed on an inclined surface which is continuous with a wall of the pressure chambers and a wall of the ink supply paths at the boundary between the pressure chambers and the ink supply paths where a flow path cross-sectional area changes, and the plurality of protrusions project into the flow path from the wall surface.