Abstract: To suitably use a metallic ink or a pearl-colored ink in an inkjet printer. Furthermore, to suitably use an ink containing a large-sized pigment in the inkjet printer. An inkjet printer includes an inkjet head 12 that discharges towards a printing medium 50 ink droplets of a metallic ink or a pearl-colored ink. The inkjet head 12 includes a nozzle 104 that discharges the ink droplets towards the printing medium 50, and an air blowing unit 120 that generates an airflow towards the printing medium 50 along the ink droplets discharged from the nozzle 104.

Abstract: A printer that restarts printing from a desired print position after an emergency stop is provided. A printer according to the present disclosure includes a head printing on a work, a driving motor moving at least one of the head and the work in order to change a print position on the work, a rotary encoder and an encoder counter determining a position of the head relative to the work, a control device supplying electric power to the encoder after excitation of the driving motor is turned off during printing and enabling the encoder counter to continue counting.

Abstract: A nozzle plate for an inkjet head including a substrate and ink ejecting holes formed in the substrate. An ink-repellent layer is formed on an ink ejecting side surface of the nozzle plate, and portions of the ink-repellant layer around the ink ejecting holes are selectively removed so that portions of the nozzle plate around the ink ejecting holes are exposed. Also, a method of producing a nozzle plate for an inkjet head is provided that includes preparing a nozzle plate which includes a substrate and ink ejecting holes formed in the substrate and has an ink-repellent layer formed on an ink ejecting side surface of the nozzle plate, and selectively removing portions of the ink-repellant layer around the ink ejecting holes to expose portions of the nozzle plate around the ink ejecting holes.

Abstract: In an inkjet printer, a feeding side tension applying means is provided with a feeding side tension adjustment mechanism, which is structured of a feeding side ballast arm that is extended toward a winding side tension applying means and vertically swingable around a rotation shaft perpendicular to a feeding direction of a printing medium and a feeding side ballast member that is attached to a tip end of the feeding side ballast arm, and a winding side tension applying means is provided with a winding side tension adjustment mechanism which is structured of a winding side ballast arm that is extended toward the feeding side tension applying means and vertically swingable around a rotation shaft perpendicular to the feeding direction of the printing medium “M” and a winding side ballast member that is attached to a tip end of the winding side ballast arm.

Abstract: An ink includes a volatile organic solvent and a UV curable ink. The ink has a viscosity greater than or equal to 3 mPa·sec and less than or equal to 18 mPa·sec (at 25° C.). The UV curable ink has a viscosity of greater than or equal to 20 mPa·sec (at 25° C.). The UV curable ink comprises a pigment, an ultraviolet curable resin curable by an ultraviolet light, and a photopolymerization initiator.

Abstract: A printing apparatus including a pallet configured to receive a print substrate, a conveyer system configured to convey the pallet, and a plurality of work mechanisms arranged along a pallet conveying direction of the conveyer system. The work mechanisms are configured to conduct processing operations to the print substrate. The conveyer system includes an upper conveyer mechanism configured to sequentially convey the pallet to respective working positions of the work mechanisms, and a lower conveyer mechanism arranged below and along the upper conveyer mechanism. The lower conveyer mechanism is configured to convey the pallet in a direction opposite to the pallet conveying direction of the upper conveyer mechanism so that the conveyer system is structured to have an upper stage and a lower stage.

Abstract: A printer includes a supporting member, a print head and a guide member. The supporting member is configured to support a sheet print medium on an upper surface of the supporting member. The print head is provided to print on the sheet print medium fed onto the upper surface of the supporting member. The guide member is configured to guide the sheet print medium to feed the sheet print medium onto the upper surface of the supporting member. The guide member includes at least one guide collar around which the sheet print medium is wound and a guide bar provided in the at least one guide collar so that the at least one guide collar is rotatable around the guide bar.

Abstract: An ink supply device for an inkjet printer includes a sub-tank and a main tank. The sub-tank has an ink chamber to store liquid ink and is connected to a print head configured to eject the liquid ink via a head-side supply passage. The sub-tank has a plurality of supply holes which connect the ink chamber and the head-side supply passage. At least two of the plurality of supply holes have their openings on the ink chamber side formed at different heights. The main tank is connected to the sub-tank and contains the liquid ink to be supplied to the ink chamber.

Abstract: An inkjet printer includes a platen, a printing head, a feeding device, a pre-heater and a print heater. The printing head is configured to move in a right-left direction above the platen and to eject solvent ink from nozzles of the printing head on a printing surface of a medium at a printing position. The feeding device is configured to feed the medium on the platen in a forward direction substantially perpendicular to the right-left direction. The temperature controller is configured to control a pre-heater heating temperature of the pre-heater and a print heater heating temperature of the print heater such that a surface temperature of the printing surface of the medium at the printing position becomes within a range of from 30° C. to 70° C.

Abstract: A flushing apparatus includes a suction mechanism and an ink mist collecting mechanism. The suction mechanism is to suck ink mist. The ink mist collecting mechanism is to collect the ink mist by a suction force of the suction mechanism. The ink mist collecting mechanism includes an upper face part and a droplet forming member. The ink ejected from the nozzle is dropped on the upper face part. The upper face part includes a plurality of suction holes through which the ink mist is sucked into an inside of the ink mist collecting mechanism by the suction force of the suction mechanism. The droplet forming member is provided at a position corresponding to the plurality of the suction holes to provide droplets from the ink mist sucked through the plurality of the suction holes.

Abstract: In an ink filling method according to the present invention, a suction arrangement having a pump is air-tightly coupled to a head unit having a plurality of ink supply ports, and sucking is performed by using the pump, thereby supplying an ink stored in an ink supply source to a plurality of the ink supply ports via a flow channel arrangement including one ink flow channel that communicates with the ink supply source and a plurality of branched flow channels that branch out from the ink flow channel and communicate with corresponding ones of the ink supply ports. The sucking is stopped from a time point when one of the branched flow channels is entirely filled with the ink until air in the flow channel arrangement moves in a branching portion, and the sucking is resumed when the air has moved in the branching portion.

Abstract: A bulk ink supply system of an inkjet printer includes a connector, an ink flow path, and an on-off valve. The connector is attachable to and detachable from an ink container. The connector includes an ink guiding path formed in the connector. The ink flow path connects the ink guiding path and an inkjet head of the inkjet printer to supply an ink from the ink guiding path to the inkjet head. The on-off valve allows communication between the ink guiding path and the ink flow path when the ink container is attached to the connector and hinders communication between the ink guiding path and the ink flow path when the ink container is detached from the connector.

Abstract: An inkjet printer includes an ejector, a waveguide, an electromagnetic wave supplier, a rotating reflector, and a ventilator. The ejector ejects ink onto a medium. Through the waveguide, the medium onto which the ink was ejected passes. The waveguide has a starting end part and a terminal end part. The electromagnetic wave supplier is provided at the starting end part of the waveguide to supply an electromagnetic wave to the waveguide. The rotating reflector is provided at the terminal end part of the waveguide and rotatable to reflect the electromagnetic wave supplied by the electromagnetic wave supplier. The ventilator ventilates an inside of the waveguide.

Abstract: An inkjet printer includes a media supporter, a head device, and an ink mist removal mechanism. The media supporter is configured to support a printing medium. The head device includes an inkjet head from which ink is configured to be discharged to print on the printing medium supported by the media supporter while the head device relatively moves with respect to the printing medium. The ink mist removal mechanism is arranged in the head device and faces the printing medium. The ink mist removal mechanism is configured to generate an air current that flows through a space between the head device and the printing medium. The ink mist removal mechanism is configured to discharge the air current to outside thereby removing ink mist generated due to ink discharge from the inkjet heads.

Abstract: A pressure regulating valve for an inkjet printer includes a negative pressure generator including a negative pressure chamber, a pressure receiving member, and a pressure device. A sealing valve includes a pressure chamber, a valve element, and a valve element pressing device. A linkage mechanism includes a communication flow chamber and an operating lever swingably provided in the communication flow chamber and including an arm section, a first engagement section, and a second engagement section. A first length of the arm section is greater than a second length of the arm section. The first engagement section is pressed against the pressure receiving member to swing the operating lever and the second engagement section moves the valve element to open the sealing valve when the pressure receiving member is moved inwardly with respect to the negative pressure chamber against a force applied by the pressure device.

Abstract: A 3D inkjet printer includes an inkjet head and a medium holder configured to hold a medium having a three-dimensional shape. A Y-axial driving mechanism is capable of moving the inkjet head along a Y-axial. A Z-axial supporting mechanism supports the medium holder so as to be movable along a Z-axial direction. An X-axial driving mechanism is capable of moving the Z-axial supporting mechanism along an X-axial direction. A Z-axial driving mechanism is capable of moving the medium holder along the Z-axial direction. The medium holder includes an A-axial driving mechanism capable of swinging the medium along an A-axial direction. The A-axial direction is a rotational direction about a shaft disposed along the Y-axial direction. A B-axial driving mechanism is capable of rotating the medium along a B-axial direction. The B-axial direction is a rotational direction about a shaft disposed perpendicular to the Y-axial direction.

Abstract: An inkjet printer includes a first printer head configured to eject ink to a first printing area on a surface of a print medium to form first ink dots in the first printing area, and a second printer head configured to eject ink to a second printing area on the surface of the print medium to form second ink dots in the second printing area. A detector is configured to detect first and second printing states in the first and second printing areas, respectively. A comparing unit is configured to compare the first and second printing states. An ejection controller is configured to control ejection from the first and second printer heads. A printing state compensator is configured to compensate ejection control performed by the ejection controller according to a comparison result output by the comparing unit so that the first and second printing states are substantially equal.

Abstract: A printer apparatus includes a guide rail, a first device including a first head, a second device including a second head, and a hauling device including a driving member movable between the first device and the second device. A first holding mechanism is provided on one side with respect to a medium supporter. A second holding mechanism is provided on another side with respect to the medium supporter. When ink is to be ejected from the first head, the second holding mechanism holds the second device separated from the driving member, and a first connecting mechanism connects the first device to the driving member. When ink is to be ejected from the second head, the first holding mechanism holds the first device separated from the driving member, and a second connecting mechanism connects the second device to the driving member.

Abstract: An inkjet printer includes an ejector, a wave guide, an electromagnetic wave supplier, and a reflector. The ejector is configured to eject ink toward a medium. Through the wave guide, the medium with the ink ejected by the ejector is inserted. The electromagnetic wave supplier is disposed at a start end of the wave guide to supply electromagnetic waves to the wave guide. The reflector is disposed at a terminal end of the wave guide to reflect the electromagnetic waves supplied by the electromagnetic wave supplier.

Abstract: An ink jet printer includes a medium supporter to support a print medium. A print head is configured to eject ink droplets toward the print medium. An ultraviolet light irradiation device is configured to irradiate the print medium with ultraviolet light to cure ink deposited on the print medium. On a carriage, the print head and the ultraviolet light irradiation device are mounted to face the medium supporter. The carriage is reciprocally movable relative to the print medium in a first direction and movable relative to the print medium in a second direction perpendicular to the first direction. The ultraviolet light irradiation device is arranged on a side in the first direction of the print head. The print head is arranged to project toward an upstream side of a feeding direction in the second direction by a predetermined length relative to the ultraviolet light irradiation device.