A method is disclosed for reducing the scatter of UV light during a final curing operation in the three-dimensional printing on the surface of transparent and semi-transparent media. The method precisely controls the movement of media during a final cure step in the printing of an expressed inkjet image on the surface of transparent media. The method also controls a number of factors during final curing operation such as the lateral movement of media under a final cure lamp, the number of rotations that media undergoes during final curing, the timely modulation of UV lamp power during final curing, and the selection of UV emitter segments positioned away from a inkjet print head to reduce the amount of potential UV radiation from impinging upon one or more of the adjacent printing heads.

There is provided an image recording apparatus including: head configured to discharge a photo-curing liquid to a medium; irradiator configured to irradiate a curing light to cure the photo-curing liquid; distance measurer including first light emitter configured to emit a ranging light to measure a distance to the medium, and first light receiver configured to receive the ranging light; and casing housing the head, the irradiator and the distance measurer, and having a window through which an inside of the casing is visually perceptible. First filter is provided on the window, the first filter having a function of restraining transmission of the curing light more compared to transmission of a visible light. Second filter is provided on the first light receiver, the second filter having a function of restraining transmission of the visible light more compared to transmission of the ranging light.

A liquid discharge apparatus includes a liquid discharge head, an irradiator, a carriage, and a conveyance controller. The liquid discharge head discharges liquid to a recording medium to form a liquid application surface. The irradiator emits active energy rays toward the liquid application surface. The carriage is mounted with the liquid discharge head and the irradiator. The conveyance controller conveys the carriage. The irradiator includes a first irradiator that is provided on one side surface of the carriage in a direction in which the carriage is conveyed and a second irradiator that is provided on another side surface of the carriage in the direction in which the carriage is conveyed. A position of the first irradiator and a position of the second irradiator in a direction perpendicular to the direction in which the carriage is conveyed, on irradiation of the active energy rays, are different from each other.

A printing apparatus includes an ink ejector, a dryer, and a melting device. The ink ejector ejects an ink to an object on which a printed record is to be produced. The ink contains a medium and a fixing polymer. The dryer heats the object to expedite evaporation of the medium. The melting device is configured to irradiate the ink on the object with ultraviolet rays to subject the ink to heat that causes the fixing polymer to melt and to fix the ink to the object accordingly.

A printing apparatus is provided that has: a printing part that performs printing by depositing a recording composition on the surface of a printing medium; a plasma generation part that is constituted by a plasma generation chamber having an introduction port for introducing a gaseous flow of plasma material gas to the interior, wherein the plasma material gas is converted to a plasma in the interior to form a gaseous flow of plasma-modified gas, as well as a plasma release port for releasing the gaseous flow to the exterior; and a plasma irradiation part that brings a gaseous flow released from the plasma release port, which contains the plasma-modified gas and/or plasma-quenched gas formed therefrom, in contact with the surface of the printing medium that has been printed at the printing part. The printing apparatus can fully dry/cure a printed recording composition.

A dielectric heating device includes a first electrode and a second electrode that face an object to be heated and to which an AC voltage is applied, and a coil that is electrically coupled in series to the first electrode. A linear distance between one end and the other end of the coil is equal to or smaller than a linear distance between the one end and a central portion of the coil in a magnetic path direction of the coil.

A printing apparatus includes a body portion and a carriage configured to move in a first direction along a first axis and in a second direction along a second axis orthogonal to the first axis. The carriage is mounted with a head configured to eject ink toward a medium and an irradiation unit configured to irradiate the medium with ultraviolet rays arranged side by side in the first direction. The irradiation unit includes a first contact portion and is supported movably in the second direction relative to the head. Movement of the carriage in the second direction brings the first contact portion and a second contact portion provided at the body portion into contact with each other. The irradiation unit moves in the second direction relative to the head as the carriage moves while the first contact portion and the second contact portion are in contact with each other.

A deposition device is described. The deposition device has a substrate support and an imaging system disposed to image a portion of a substrate positioned on the substrate support. The imaging system comprises an LED light source and an imaging unit, and is coupled to a deposition assembly disposed across the substrate support.

A liquid surface imaging device includes an irradiator including a plurality of lightings, the irradiator configured to irradiate a liquid surface in a nozzle of a liquid discharge head with lights emitted from the plurality of lightings, and an imaging device configured to image the liquid surface. The plurality of lightings is arranged point-asymmetrically with a center of the imaging device as a point of symmetry.

A cooling module, which is securable to one or more thermal transfer members for an LED curing apparatus, wherein the cooling module comprises a first finned heat sink and a second finned heat sink; wherein the first finned heat sink is removably securable to the second finned heat sink to provide at least one aperture therebetween, wherein each of a plurality of fins protrude from the first finned heat sink and from the second finned heat sink and each fin is substantially perpendicular to the length of the or each aperture, wherein the first finned heat sink is removably secured proximal to the second finned heat sink by at least one locking member, and wherein the or each locking member is inserted such that its length is parallel to the length of the or each aperture.