Abstract: A liquid ejecting apparatus includes a head unit having a plurality of nozzles ejecting an ink, the head unit including a filter provided with holes through which the ink can pass, a first nozzle row formed by the plurality of nozzles, and a second nozzle row formed by the plurality of nozzles, and a mounting portion on which the head unit is detachably mounted. The nozzles forming the second nozzle row communicate with the nozzles forming the first nozzle row via the filter. A pre-operation of forming gas-liquid interfaces in the holes provided in the filter is executed before the head unit is removed from the mounting portion.

Abstract: A recording device, when recording is performed on a predetermined type target recording medium stored in a storage unit, drives a surface potential adjustment unit so that a surface potential is a positive potential within a predetermined range. By configuring such a recording device, it is possible to suppress adhesion of ink to an ejecting unit, and occurrence of an ink ejection failure can be suppressed.

Abstract: There is provided a printer including a head configured to discharge a liquid onto a printing surface of a printing medium, the liquid being curable by applying energy; an energy applying unit; a moving device which relatively moves the head and the energy applying unit with respect to the printing medium; and a controller. The controller executes discharge of the liquid from the head onto the printing surface while relatively moving the head and the printing medium; application of first energy and second energy from the energy applying unit to the liquid, while relatively moving the energy applying unit and the printing medium; and decision of an added-up energy amount of the first energy applied to the liquid on the printing surface from the energy applying unit until the second energy is applied after the application of the first energy depending on a state of the printing surface.

Abstract: A recording medium includes a substrate, a first ink-receiving layer, and a second ink-receiving layer adjacent to the first ink-receiving layer, in this order. The first ink-receiving layer has a positive surface zeta potential, and the second ink-receiving layer has a negative surface zeta potential. The thickness of the second ink-receiving layer is 2 ?m to 15 ?m.

Abstract: The present application provides an inkjet printing device, which includes a print head, a first container, a first pipeline, and a first valve. The print head is configured to discharge printing material. The first container is configured to store a solvent for cleaning the print head. An input end of the first pipeline is in communication with the first container, and an output end of the first pipeline is in communication with the print head. The first valve is provided on the first pipeline.

Abstract: A liquid ejecting device includes a liquid ejecting head configured to eject a liquid to a medium to perform printing, and a control unit configured to control the liquid ejecting head and include a storage unit. The storage unit is configured to be able to store a plurality of ranges of the liquid consumption amount, and the number of printed sheets on which, in a predetermined period, printing is performed in each of the plurality of ranges of the liquid consumption amount. When the plurality of ranges of the liquid consumption amount are changed within the predetermined period, the control unit performs invalidation processing on the number of printed sheets stored in the storage unit.

Abstract: An inkjet printing method includes: preparing a shape drawing; creating an image for an inkjet printing based on a color table or a boundary table; applying the image for the inkjet printing to an inkjet apparatus; and performing the inkjet printing based on the image by the inkjet apparatus, where the creating the image for the inkjet printing includes converting the shape drawing into a vector image, converting the vector image into a raster image, and converting the raster image into the image for the inkjet printing which is a black-and-white image.

Abstract: In a light radiation device including an upstream radiation portion, a middle radiation portion and a downstream radiation portion, the upstream radiation portion overlaps a nozzle array in a transportation direction. A controller includes a path controller to control a path operation of ejecting ink from the nozzle array onto a medium while moving a recording head and the light radiation device in a scanning direction, a transportation controller to control a transportation operation of, after the path operation, transporting the medium downstream in the transportation direction by a distance shorter than a length in the transportation direction of the nozzle array, and a first light radiation controller to control the light radiation device, during the path operation by the path controller, to turn on the upstream radiation portion and the downstream radiation portion and to turn off the middle radiation portion.

Abstract: A liquid ejecting apparatus includes a print head, a digital signal output circuit, and a liquid accommodating container, in which the print head includes a supply port to which the liquid is supplied from the liquid accommodating container, a nozzle plate having a plurality of nozzles that eject the liquid, a substrate that has a first surface and a second surface different from the first surface, a connector to which the digital signal is input, an integrated circuit to which the digital signal is input via the connector and that outputs an abnormality detection signal indicating presence or absence of an abnormality in the print head, and a first capacitor electrically coupled to the integrated circuit, the connector and the first capacitor are provided on the first surface, and the integrated circuit is provided on the second surface.

Abstract: A digital printing system (10) includes a flexible intermediate transfer member (ITM) (44) and a dancer assembly (100). The ITM (44) is configured to receive ink droplets from an ink supply system to form an image thereon, and to transfer the image to a target substrate (50). The dancer assembly (100) includes a fluid chamber (103) and a rotatable element (111) fitted in the fluid chamber (103), the fluid chamber (103) includes an inlet (107) configured to receive pressurized fluid (130) into the fluid chamber (103), and the pressurized fluid (130) causes the rotatable element (111) to move relative to the fluid chamber (103) and to apply tension to the ITM (44) while being rotated by the ITM (44).

Abstract: Provided is an electric wiring member supported by a support member that supports a recording element substrate configured to eject a liquid. The electric wiring member has a signal line for transmitting a drive signal used for driving the recording element substrate, a power line for supplying drive power to the recording element substrate, and a heat generating resistive line for heating the support member. The power line is arranged between the signal line and the heat generating resistive line.

Abstract: A printing device includes a frame, and an electronic circuit-board unit attached to the frame. The electronic circuit-board unit includes: a holder including a holding portion; a first substrate held to a first surface of the holder; a second substrate held to a second surface of the holder and attached to the frame; an electronic component; and a harness electrically connected to the electronic component. The holder has: a first region overlapped with the first substrate in a plan view; and a second region offset from the first region in the plan view. At least one of the electronic component and the harness is held by the holding portion.

Abstract: An illumination control method of LED lamps for ink-jet printers including a recording head in which ink discharge printing ranges are formed in a printing direction and an LED lamp in which light emitting diodes are arranged at a rear side of the recording head with respect to the printing direction. In an ink-jet printer in which the light-emitting diodes are divided into plural areas and the light amount for each area can be individually controlled by a controller, and among the light-emitting diodes, the light amount of the light-emitting diode that first scans a glossy printed surface is set to a light amount that does not cause ink curing. The light amount of the light-emitting diode of the area that first scans is set so the total light amount on the glossy printed surface is less than or equal to the critical exposure amount of the integrated illuminance.

Abstract: A subwavelength resonator for acoustophoretic printing comprises a hollow resonator body for local enhancement of an acoustic field integrated with a nozzle body for delivery of an ink into the acoustic field. The nozzle body has a first end outside the hollow resonator body and a second end inside the hollow resonator body, and includes a fluid channel extending between a fluid inlet at the first end and a fluid outlet at the second end. The fluid channel passes through a side wall of the hollow resonator body and includes at least one bend. During acoustophoretic printing, an ink delivered through the fluid channel of the nozzle body and out of the fluid outlet is exposed to a high-intensity acoustic field.

Abstract: A liquid ejecting apparatus includes a print head, in which the print head includes a substrate having first, second, third and fourth sides, a first surface, a second surface, a connector, a first integrated circuit, and a second integrated circuit, the connector includes a first end with a shortest distance to the third side and a second end with a shortest distance to the fourth side and is provided on the first surface so that a plurality of terminals are arranged along the first side, the first integrated circuit is provided on the second surface, a shortest distance between the first end and the first integrated circuit is shorter than a shortest distance between the second end and the first integrated circuit, and a shortest distance between the second end and the second integrated circuit is shorter than a shortest distance between the first end and the second integrated circuit.

Abstract: There is provided a cleaning liquid usable for cleaning of an ink-jet recording apparatus, the cleaning liquid including: a first water-soluble organic solvent, a vapor pressure at 20° C. of the first water-soluble organic solvent being not less than 7 Pa; a second water-soluble organic solvent, a vapor pressure at 20° C. of the second water-soluble organic solvent being not more than 1 Pa; a nonionic surfactant; and water. The cleaning liquid satisfies the following conditions (1) to (3): Condition (1): 10?A+B?60; Condition (2): A/B?1; Condition (3): (A+B)/C?10. In the conditions (1) to (3), A: a content amount (% by mass) of the first water-soluble organic solvent, B: a content amount (% by mass) of the second water-soluble organic solvent, and C: a content amount (% by mass) of the nonionic surfactant.

Abstract: A method of curing radiation-curable coatings in printing machines using UV light includes using the same light source or sources for the pinning and final curing operations in two different modes of operation suitable for pinning and for completely curing. The light sources are preferably gas-discharge lamps, in particular xenon flash lamps. A printing machine and a method for using at least one gas-discharge lamp are also provided.

Abstract: A printing apparatus, including a discharging head, a relative movable assembly to move a printable medium and the discharging head relatively, and a lighting unit including a plurality of light sources to emit light for curing the ink, is provided. A part of the plurality of light sources is arranged in a first lighting area, and another part of the plurality of light sources is arranged in a second lighting area. A quantity of the light sources per unit area in the second lighting area is smaller than a quantity of the light sources per unit area in the first lighting area. A direct distance from the discharging head to the second lighting area in a direction parallel to the predetermined direction is shorter than a direct distance from the discharging head to the first lighting area.

Abstract: A recording device includes a recording head, a conveyance portion that conveys a liquid-ejected medium so that the liquid-ejected medium passes through a position facing the recording head, a supply portion for air, and an air blowing mechanism that is disposed on an upstream side of the recording head in a relative moving direction between the recording head and the liquid-ejected medium, the air blowing mechanism including an air blow-out port for blowing out air from the supply portion toward a gap between the recording head and the liquid-ejected medium. The air blow-out port includes a plurality of slits that are lined up in a direction intersecting the relative moving direction, and the plurality of slits are lined up in the direction intersecting the relative moving direction so that long sides of the adjacent slits have regions facing each other in a direction orthogonal to the long sides.

Abstract: Provided are a blowing unit, a drying device, a liquid applying system, and a printing system with which it is possible to realize uniformly blowing air via a plurality of jetting ports. In a blowing unit that has a hollow structure and blows air via a plurality of jetting ports disposed at a first surface, a gas inflow port through which a gas supplied from a gas supply source flows in is formed in a second surface which intersects the first surface and at which the jetting ports are not disposed and a ratio of a sum of opening areas of the plurality of jetting ports to an opening area of the gas inflow port is equal to or larger than 0.1 and equal to or smaller than 1.0.