Abstract: An ink jet recording method includes delivering a non-aqueous light-curable ink composition stored in an ink container from the ink container to a head via an ink delivery path and discharging the ink composition from the head toward a recording medium. The non-aqueous light-curable ink composition contains a radically-polymerizable compound and has a surface tension of 25 mN/m or less. The non-aqueous light-curable ink composition stored in the ink container has a dissolved air content of 7 ppm or more. The non-aqueous light-curable ink composition has a dissolved air content of 30 ppm or less at delivery from the ink delivery path to the head.

Abstract: An apparatus for printing an image on a transparent medium based on a selected mode, the apparatus includes: a head that ejects ink droplets from nozzles, wherein when a first mode is selected, the head prints a first image on the transparent medium, prints a background image on the first image, and prints a second image which is different from the first image on the background image, and wherein when a second mode is selected, the head prints a second image on the transparent medium, prints a background image on the second image, and prints a first image on the background image.

Abstract: An apparatus for printing an image on a transparent medium based on a selected mode, the apparatus includes: a head that ejects ink droplets from nozzles, wherein when a first mode is selected, the head prints a first image on the transparent medium, prints a background image on the first image, and prints a second image which is different from the first image on the background image, and wherein when a second mode is selected, the head prints a second image on the transparent medium, prints a background image on the second image, and prints a first image on the background image.

Abstract: An apparatus includes: a main image nozzle group that forms a main image; a background image nozzle group which has nozzles of a number greater than the main image nozzle group for forming a background image of the main image, and has a first nozzle group situated to one side in a predetermined direction; and a second nozzle group situated to the other side in the predetermined direction, ejects fluid from the main image nozzle group to a first region on which the main image is formed on the medium to form dots, forms dots formed by ejecting fluid from the first nozzle group and dots formed by ejecting fluid from the second nozzle group, in a second region on which an image is formed using fluid forming the background image on the medium and the main image is not formed.

Abstract: Provided is a printing apparatus for printing an image on a medium, which is transported in a transport direction, by forming dots by ejecting ink from a plurality of nozzles while moving the nozzles in an intersecting direction that intersects the transport direction. The printing apparatus has a first printing mode for printing a mirror image of a predetermined image as the image on the medium and a second printing mode for printing a positive image of a predetermined image as the image on the medium, the medium being a transparent medium. The first printing mode is different from the second printing mode in at least one of a transportation operation of transporting the medium and a dot-forming operation of forming the dots by ejecting ink while moving the nozzles.

Abstract: Provided is a recording method using a light-curable-type ink set including a light-curable-type color-ink composition containing a polymerizable compound, a photopolymerization initiator, and a coloring material and a light-curable-type clear-ink composition containing a polymerizable compound and a photopolymerization initiator, wherein the light-curable-type color-ink composition contains (1) an acylphosphine oxide-based photopolymerization initiator and (2) at least one of a thioxanthone-based photopolymerization initiator and/or an ? aminoalkylphenone-based photopolymerization initiator which is in a range of 0.

Abstract: A printing apparatus which prints an image on a medium, including a head which discharges ink droplets from nozzles, wherein the medium is transparent, two pieces of image data are prepared, one piece of image data is selected from the two pieces of image data to set the selected image data to one of a first image and a second image, the other piece of image data is set to the other of the first image and the second image, the image data set to the first image is subjected to a processing to be mirror image data, and the head prints the mirror image of the first image on the medium, prints a background image on the mirror image of the first image, and prints a real image of the second image on the background image.

Abstract: An apparatus includes: a first nozzles for ejecting first fluid are lined up in a predetermined direction; a second nozzles for ejecting second fluid are lined up in a movement direction; and a control unit which sets a first method of when formation of a main image with the first fluid and formation of a background image with the second fluid are performed to overlap the main image and the background image with each other on the medium, in a case where one of the nozzle group of the part of the first nozzles and the nozzle group of the part of the second nozzles is positioned closer to the other direction side of the predetermined direction than the other nozzle group to perform the image formation on a predetermined area of the medium in advance of the other nozzle group.

Abstract: A printing apparatus which prints an image on a medium, including a head which discharges ink droplets from nozzles, wherein the medium is transparent, two pieces of image data are prepared, one piece of image data is selected from the two pieces of image data to set the selected image data to one of a first image and a second image, the other piece of image data is set to the other of the first image and the second image, the image data set to the first image is subjected to a processing to be mirror image data, and the head prints the mirror image of the first image on the medium, prints a background image on the mirror image of the first image, and prints a real image of the second image on the background image.

Abstract: An ultraviolet curing ink jet ink composition includes a trifunctional or tetrafunctional (meth)acrylate having a pentaerythritol skeleton; and inorganic metal-based fine particles as a color material, in which the viscosity is 8 to 22 mPa·s at 20° C.

Abstract: Provided is a printing apparatus for printing an image on a medium, which is transported in a transport direction, by forming dots by ejecting ink from a plurality of nozzles while moving the nozzles in an intersecting direction that intersects the transport direction. The printing apparatus has a first printing mode for printing a mirror image of a predetermined image as the image on the medium and a second printing mode for printing a positive image of a predetermined image as the image on the medium, the medium being a transparent medium. The first printing mode is different from the second printing mode in at least one of a transportation operation of transporting the medium and a dot-forming operation of forming the dots by ejecting ink while moving the nozzles.

Abstract: An ink jet recording method includes ejecting an ultraviolet-ray curable ink of which a viscosity at 28° C. is 8 mPa·s or more from a head to a recording medium, and curing the ultraviolet-ray curable ink attached to the recording medium, wherein, in the ejecting of the ultraviolet-ray curable ink, the ultraviolet-ray curable ink is heated such that a temperature of the ejected ultraviolet-ray curable ink becomes 28° C. to 40° C., and a viscosity of the ultraviolet-ray curable ink at the temperature is 15 mPa·s or less.

Abstract: A printing device that forms a background by a first ink and images on the background by a second ink includes a head having first and second nozzle lines that eject, respectively, the first and second inks. The inks are ejected as the head moves, with respect to a medium, in a main scanning direction intersecting the first and second nozzle lines. A transport section transports the medium in a sub-scanning direction along the first and second nozzle lines. In an ejecting operation, the first and second inks are ejected in the relative movement in the main scanning direction and the relative transportation in the sub-scanning direction is performed. In the sub-scanning direction, first and second nozzle line used areas are set where the first and second inks, respectively, are ejected from the first and second nozzle lines. A nozzle unused area is defined therebetween.

Abstract: Provided is an ink jet recording method including: discharging first ultraviolet curable ink of a radical polymerization reaction type which contains a radical photopolymerization initiator and a radical polymerization compound and in which transmittance at a wavelength of 395 nm is equal to or less than 1%, onto a recording medium; and curing the first ultraviolet curable ink which is landed on the recording medium by irradiating the ink with ultraviolet light, in which a light source which initially emits the ultraviolet light in the curing of the ink is an ultraviolet light emitting diode in which peak intensity of the irradiated ultraviolet light is equal to or more than 800 mW/cm2.

Abstract: An apparatus includes: a first nozzles for ejecting a first fluid are lined up in a predetermined direction; a second nozzles for ejecting a second fluid are lined up in the predetermined direction; and a control unit performs an ejecting operation of ejecting fluid from the nozzles, wherein the control unit forms an image on a medium in one of a first mode of forming a main image with the first fluid and a second mode of forming the main image and a background image with the second fluid to be overlapped, forms the main image using a certain nozzle group in the first nozzles when the main image is formed in the first mode, and forms the main image using the same nozzle group as the certain nozzle group when the main image is formed in the second mode.

Abstract: Provided is a printing apparatus for printing an image on a medium, which is transported in a transport direction, by forming dots by ejecting ink from a plurality of nozzles while moving the nozzles in an intersecting direction that intersects the transport direction. The printing apparatus has a first printing mode for printing a mirror image of a predetermined image as the image on the medium and a second printing mode for printing a positive image of a predetermined image as the image on the medium, the medium being a transparent medium. The first printing mode is different from the second printing mode in at least one of a transportation operation of transporting the medium and a dot-forming operation of forming the dots by ejecting ink while moving the nozzles.

Abstract: A printing device that forms a background by a first ink and images on the background by a second ink includes a head having first and second nozzle lines that eject, respectively, the first and second inks. The inks are ejected as the head moves, with respect to a medium, in a main scanning direction intersecting the first and second nozzle lines. A transport section transports the medium in a sub-scanning direction along the first and second nozzle lines. In an ejecting operation, the first and second inks are ejected in the relative movement in the main scanning direction and the relative transportation in the sub-scanning direction is performed. In the sub-scanning direction, first and second nozzle line used areas are set where the first and second inks, respectively, are ejected from the first and second nozzle lines. A nozzle unused area is defined therebetween.

Abstract: An apparatus for printing an image on a transparent medium based on a selected mode, the apparatus includes: a head that ejects ink droplets from nozzles, wherein when a first mode is selected, the head prints a first image on the transparent medium, prints a background image on the first image, and prints a second image which is different from the first image on the background image, and wherein when a second mode is selected, the head prints a second image on the transparent medium, prints a background image on the second image, and prints a first image on the background image.

Abstract: An image recording apparatus causes the repeated alternating execution of an ejection operation, in which light-curable ink is ejected from a head while the head and a light irradiation unit are moved in a predetermined direction by a movement mechanism, and a transport operation, in which a medium is moved relative to the head and the light irradiation unit in a direction that is orthogonal to the predetermined direction; and reduces the irradiation intensity of the light irradiation unit during acceleration/deceleration periods, when the movement mechanism moves the head and the light irradiation unit at a velocity that is lower than a predetermined velocity, to a lower irradiation intensity than the irradiation intensity of the light irradiation unit during a constant velocity period, when the movement mechanism moves the head and the light irradiation unit at the predetermined velocity.

Abstract: An image forming apparatus provided with a first mode in which one nozzle row group is positioned so as to be shifted to the downstream side of the medium transport direction with respect to another nozzle row group, ink forming a main image is filled into the first nozzle row in the one nozzle row group, ink forming a background image is filled into the second nozzle row in the other nozzle row group, and the one nozzle row group and the other nozzle row group are used to form the background image before the main image, and a second mode, in which ink forming a background image is filled into the first nozzle row, ink forming the main image is filled into the second nozzle row, and the one nozzle row group and the other nozzle row group are used to form the main image before the background image.