Abstract: There is provided a light curing molding ink set used for a manufacturing method for light curing molding using an ink-jet scheme, comprising a combination of a resin composition for a modeling material used for shaping the modeling material and a resin composition for a supporting material used for shaping the supporting material, wherein surface tension Mt (mN/m) of the resin composition for a modeling material is greater than surface tension St (mN/m) of the resin composition for a supporting material, and the surface tension Mt and the surface tension St satisfy the [0<Mt?St<5] expression, and this light curing molding ink set can afford a light cured article having the good dimensional accuracy.

Abstract: An ultraviolet curing ink can be sufficiently leveled, and attachment of, for example, dust can be prevented. In an ink-jet printer, a carriage capable of reciprocating in a scanning direction is mounted with an ink-jet head for ejecting a color ink and a clear ink and ultraviolet irradiation devices for emitting ultraviolet rays. A control unit performs control so that in the forward movement of the carriage, a color ink is ejected and applied to a medium, and in the backward movement of the carriage, ultraviolet rays are irradiated to the color ink deposited on the medium and the color ink is cured. Subsequently, the medium is fed in a feed direction, and the clear ink is ejected and applied to the surface of the cured color ink in the forward movement of the carriage. In the backward movement of the carriage, the clear ink applied to the medium is irradiated by ultraviolet rays and is cured.

Abstract: A liquid ejection apparatus to eject liquid droplets includes an inkjet head that is an ejection head including a plurality of nozzles and a plurality of driving elements, a driving signal outputter, an ejection nozzle setter, and a timing setter to set timing at which the driving elements receive a driving signal. The driving signal outputter outputs, in common, a voltage change signal being a signal whose voltage changes with passage of time, as at least a part of the driving signal, to the plurality of nozzles. The timing setter individually sets, for each of the driving elements, a time period during which the driving elements receive the voltage change signal. The nozzles respectively eject liquid droplets by inkjet technology according to the driving signal in which the time period to receive the voltage change signal is individually set.

Abstract: The thickness of a surface decoration layer is increased without significantly deteriorating the representation of the tone and the gradation of the color. A method for producing a three-dimensional object includes forming a surface decoration layer 11 using white material 15, at least one coloring material 13 other than white, and clear material 14, and using the at least one coloring material 13 and the clear material 14. The surface decoration layer 11 includes a plurality of layers formed by building a plurality of layer bodies one above the other. At least one of the layer bodies is formed with the white material 15 in at least one location among the lowermost layer of the surface decoration layer 11 and a region of an internal formation region 12 close to the surface decoration layer 11. The internal formation region constitutes an internal portion of the three-dimensional object. The plurality of layers constituting the surface decoration layer 11 includes the same color.

Abstract: The object is to reliably remove dirt and/or stains on the nozzle surface of a printer head. To accomplish the object, an inkjet printing device (100) is provided with a rotating brush (50) in a cap (103) mounted on a printer head (1), and a piezoelectric element (150) disposed on the side wall of the cap (103). The piezoelectric element (150) is ultrasonically vibrated at a predetermined frequency by means of a controller (20) and a power source (9). The ultrasonic vibration is transmitted into a cleaning solution in the cap (103) to remove dirt and/or stains adhered to a nozzle surface (3a). The rotating brush (50) is rotated by a motor, and its bristles (53) are vibrated by the ultrasonic vibration. Accordingly, dirt and/or stains on the nozzle surface (3a) are mechanically removed.

Abstract: An ink composition is provided and attains a more stable dischargeability without adversely affecting the drying property of a print object. As the solution, the ink composition contains water, a disperse dye, glycols, and an alcoholamine.

Abstract: To provide an ink jet recording apparatus in which the residual vibration of any ink can be prevented to avoid the spread of the ink at an opening portion and to perform the continuous discharge of the ink stably. An ink-jet recording apparatus includes a recording head including a pressure chamber and a nozzle, the pressure chamber containing ink, the nozzle communicating with the pressure chamber and having an opening portion formed therein to discharge the ink, a piezoelectric element forming part of the pressure chamber, and a driving signal producing section producing a driving signal to be input to the piezoelectric element to change the volume of the pressure chamber.

Abstract: An inkjet printing apparatus, a clogged nozzle recovering method, and a clogged nozzle recovery program are provided. The inkjet printing apparatus includes a head, a tank, a first pump, a cap, a second pump and a control means. The head is provided with a nozzle face and a plurality of nozzles. The tank is connected with the head through a tube. The first pump is connected with the tank and maintains the tank at a constant negative pressure. The cap for suction covers a part of the nozzles on the nozzle face of the head. The second pump is connected with the cap for sucking an inside of the cap. The control means controls to lower the negative pressure of the tank that is maintained by the first pump when the inside of the cap is sucked by the second pump.

Abstract: A sub tank configured to supply ink supplied from a main tank to a print head while suppressing a pressure fluctuation is formed with an ink storage chamber in which the ink is stored, and includes a filter configured to allow passage of the ink while suppressing passage of the fine particles when the fine particles of the ink are precipitated, an ink introducing portion configured to introduce the ink supplied from the outside into the ink storage chamber, and an ink discharging portion configured to discharge the ink in the ink storage chamber to the outside. The filter divides the ink storage chamber into an introducing-side storage chamber communicating with the ink introducing portion, and a discharging-side storage chamber communicating with the ink discharging portion, and the discharging-side storage chamber is arranged on an upper side of the introducing-side storage chamber in the perpendicular direction.

Abstract: The invention aims to form an ink coating having a predetermined film thickness on a surface of a printing medium having a three-dimensional structure in shorter time. As solving means, a plurality of times of scanning process is included, ink 80 is discharged to head-facing areas (10a, 10c) in a state of facing straight toward a printhead 110 in one scanning process, and the ink 80 is discharged to a non-head-facing area (10b) so that the total film thickness of the ink coatings (11, 12) to be formed without facing straight toward the printhead 110 in two or more times of the scanning process becomes a predetermined film thickness T0.

Abstract: The present invention provides an inkjet printing apparatus in which aggregate or the like clogged in a nozzle is sucked to recover the clogged nozzle and provides a clogged nozzle recovering method. The inkjet printing apparatus in accordance with the present invention includes a cap which is structured to cover some of plural nozzles formed in a nozzle face of a head of an inkjet printer, a pressure sensor which acquires a pressure in an inside of the cap in a state that the some of the plural nozzles are covered by the cap, a suction means which sucks the inside of the cap with a pressure lower than a negative pressure at which a meniscus of a nozzle that is not covered with the cap is broken, and a nozzle recovery judgment means which judges recovery of a nozzle by comparing a reference pressure value, which is obtained when nozzles without being clogged are covered by the cap and sucked and is stored beforehand, with a pressure value which is outputted from the pressure sensor.

Abstract: A printed material having excellent smoothness is provided even when a resin ink is used. An ink jet printing method uses an ink jet printing apparatus 1 including a head 5, and a printing platen 2 for heating a medium 100 from a back side of a surface of the medium 100, wherein the ink contains a solvent, a colorant and a resin, in which the resin is emulsionized or suspended. The ink jet printing method includes a drying step in which the ink is dried by the printing platen 2 after the ink is landed onto the medium 100.

Abstract: A printing apparatus, including: an ink jet head for ejecting ink droplets of an ultraviolet curing type ink toward a medium; a temporary curing ultraviolet light source; an irradiation setting storage section which stores ultraviolet irradiation settings of ultraviolet rays from the temporary curing ultraviolet light source to the medium; and a curing completion ultraviolet light source being for completing curing of the dots of the ink, is provided. The ink jet head performs a printing by a multi-pass method. The ultraviolet irradiation settings are set so that, regarding temperature of the region where the ink jet head ejects ink droplets in each main scanning operation in the multi-pass method, an increasing range of temperature compared with temperature at a timing of the last main scanning operation is suppressed within a temperature rising range which dot gains of the dots of the ink are substantially the same as each other.

Abstract: A printing method includes applying a curable resin-containing ink onto an inked surface of a transfer sheet, heating the ink applied on the inked surface of the transfer sheet to increase viscosity of the ink, transferring the heated ink on the inked surface of transfer sheet to a printing object directly or indirectly, and curing the ink transferred to the printing object.

Abstract: A printing method and a printing system are provided in which a fast printing speed is achieved, a variety of ultraviolet curable inks can be used, and excellent transfer properties to a printing object can be achieved. First, print processing is performed, thereby printing an image on a transfer pad, next, provisional curing processing is performed, thereby provisionally curing an ultraviolet curable ink applied to the transfer pad, next, transfer processing is performed, thereby transferring the ultraviolet curable ink landed on the transfer pad to a printing object, and next, final curing processing is performed, thereby performing final curing of the ultraviolet curable ink transferred to the printing object. In this way, transfer printing of an image to the printing object can be performed by a single transfer. In addition, if the transfer printing is finished, cleaning processing is performed, thereby cleaning the transfer pad.

Abstract: An object of the invention is to provide a medium processing device which carries out a plurality of processes, such as plotting and cutting, on a medium, such as paper, wherein there is no need to attach and detach units which carry out the plurality of processes, thus simplifying the structure of the device. A medium processing device, which carries out two kinds of processes on paper with a pen and a cutter, includes a carriage including a pen holder which holds the pen, a cutter holder which holds the cutter, and a changeover unit which, in a condition in which the pen holder is holding the pen and the cutter holder is holding the cutter, reduces and increases the distance between one of the pen and cutter and the paper in comparison with the distance between the other and the paper.

Abstract: A printing apparatus in which printing is performed using an ink jet method includes a first ink jet head that discharges ink droplets of ink of a first color which is a color of the same color type as an expression color that is set in advance, a second ink jet head that discharges ink droplets of ink of a second color which is a color of the same color type as the expression color and is different from the first color, and a control unit which makes the first and the second ink jet head perform printing with the expression color on a medium by setting a ratio of a discharge amount of ink of the first color by the first ink jet head to a discharge amount of ink of the second color by the second ink jet head to a discharge rate which is calculated in advance.

Abstract: A printer apparatus in the present invention includes a feeding mechanism having a feed roller provided at substantially the same height as an upper face of a medium support means and a plurality of roller assemblies having a pinch roller disposed above the feed roller and a printing medium placed on the medium support means is pinched between the feed roller and the pinch roller to be fed in the front and rear direction. The roller assembly is structured of an assembly main body and a roller member which includes the pinch roller and is attachable/detachable with respect to the assembly main body, and a clamp state can be changed by exchanging the roller member depending on material and/or thickness of the printing medium.

Abstract: A cutting device includes a guide rail opposing a platen, a printer head that prints an image and Trim marks on a sheet member, a cutter blade that performs a cutting process on the sheet member, a medium feeding mechanism that feeds the sheet member from front and back, a Trim mark detection portion that detects positions of the reference marks, and a controller that sets a cutting process position to correspond to a printing position of the image, prints the image and Trim marks while feeding the sheet member forward, detects the positions of the Trim marks with the Trim mark detection portion, and performs the cutting process with the cutter blade in the cutting process position set by the controller.

Abstract: To provide an ink jet recording apparatus in which the residual vibration of any ink can be prevented to avoid the spread of the ink at an opening portion and to perform the continuous discharge of the ink stably. An ink-jet recording apparatus includes a recording head including a pressure chamber and a nozzle, the pressure chamber containing ink, the nozzle communicating with the pressure chamber and having an opening portion formed therein to discharge the ink, a piezoelectric element forming part of the pressure chamber, and a driving signal producing section producing a driving signal to be input to the piezoelectric element to change the volume of the pressure chamber.