Abstract: A printing apparatus including a pallet configured to receive a print substrate, a conveyer mechanism configured to convey the pallet, and a working device configured to conduct a processing operation for printing on the print substrate on the pallet. The printing apparatus further includes a locating mechanism configured to stop the pallet at a first holding position and a first holding mechanism configured to hold the pallet, stopped at the first holding position by the first locating mechanism, to be spaced apart from the conveying mechanism. After the pallet being conveyed by the conveying mechanism is stopped by the first locating mechanism, the pallet is held to be spaced apart from the conveying mechanism by the first holding mechanism and the processing operation is conducted by the working device relative to the print substrate on the pallet thus held.

Abstract: A printer apparatus includes a first device and a second device. The first device includes a first carriage movable in a scanning direction along a guide rail and a first working device to perform a first predetermined work on an object medium. The second device includes a second carriage movable in the scanning direction along the guide rail and a second working device to perform a second predetermined work on the object medium. A first device holding mechanism is capable of holding the first device. A second device holding mechanism is capable of holding the second device. A vertically retreat mechanism is configured to move the second device holding mechanism and the second device along a vertical direction to be located below a medium supporter to support the object medium when the first working device is moved in the scanning direction to perform the first predetermined work.

Abstract: An inkjet printer includes a platen having a placing face, a printing device, and a printing medium feeding device. A guide is provided on a feeding-out side via which a printing medium is to be fed out from the platen. The guide has a guide face. A printing medium temperature raising device is to heat the guide face so as to raise a temperature of the printing medium placed on the guide face. A temperature raising preventing device is provided between the guide face of the guide and a portion of the placing face facing a printing target region. The temperature raising preventing device is configured to prevent an extended portion of the printing medium from being heated by the printing medium temperature raising device. The extended portion corresponds an area which is extended to the feeding-out side by a predetermined length from the printing target region.

Abstract: An inkjet printer includes a printing head configured to eject solvent ink from nozzles of the printing head on a medium at a printing position. A medium is made of a polyvinyl chloride film. The solvent ink includes an organic pigment of from 3 to 7 weight %, a resin of 15 weight % or less, and solvents. A print heater is configured to heat the medium at the printing position. The print heater is arranged separately from a pre-heater. A 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 medium at the printing position becomes within a range of from 30° C. to 70° C.

Abstract: An inkjet printer including an inkjet head unit having inkjet heads for ejecting UV inks, an UVLED unit having a UVLED for emitting ultraviolet light, and a control unit for controlling the inkjet head unit and the UVLED unit. The control unit controls the inkjet head unit and the UVLED unit to move in the scanning direction, controls the inkjet heads to eject UV inks, and controls the UVLED to emit ultraviolet light of a first light quantity. After that, the control unit controls the inkjet head unit and the UVLED unit to move in the direction opposite to the scanning direction and controls the UVLED to emit ultraviolet light of a second light quantity.

Abstract: A printer apparatus includes a medium supporter to support a printing medium. A carriage holds a printer head provided with a nozzle from which ink is to be ejected onto a printing surface of the printing medium. A carriage moving mechanism moves the carriage along the printing surface of the printing medium supported by the medium supporter. An acceleration detector is configured to detect acceleration of vibration generated in the carriage. A determining device is configured to determine whether a magnitude of the acceleration detected by the acceleration detector exceeds a predetermined threshold value. A controller is configured to control the carriage moving mechanism to restrict relative movement of the carriage when the determining device determines that the magnitude of the acceleration detected by the acceleration detector exceeds the predetermined threshold value.

Abstract: An inkjet printer system includes a print head and a sub tank. The print head is configured to eject ink. The sub tank is provided above the print head and connected to the print head via a head-side supply passage. The sub tank has a first supplying hole and a second supplying hole which are connected to the head-side supply passage. A position of the first supplying hole is higher than a position of the second supplying hole.

Abstract: An inkjet printer includes a plurality of guide walls and a plurality of choke portions. Each of the plurality of guide walls is arranged substantially in parallel with a feeding direction of a medium to provide a guide wall clearance between the plurality of guide walls. The wave guide has a first internal space connected to the guide wall clearance and an electromagnetic-wave supplier and configured to apply the electromagnetic wave to the medium which is introduced into the first internal space. Each of the plurality of choke portions includes a second internal space adjacent to each guide wall and an opening from the second internal space to the guide wall clearance. The second internal space is connected to the first internal space via the guide wall clearance. The second internal space has a length of ?/4 relative to wavelength ? of the electromagnetic wave in the feeding direction.

Abstract: An antipenetrating agent is to be added to a solvent ink for preventing penetration of the solvent ink into a medium to be printed. The antipenetrating agent includes inorganic fine particles and a resin soluble in an organic solvent.

Abstract: An ultraviolet curing inkjet printer includes a first ejecting device, a first ultraviolet light irradiation device, and a second ultraviolet light irradiation device. The first ultraviolet light irradiation device is configured to emit ultraviolet light of a first light quantity for temporarily curing the ultraviolet curable inks ejected from the first ejecting device. The first ultraviolet light irradiation device is disposed posterior to the first ejecting device in a first direction as a scanning direction. The second ultraviolet light irradiation device is configured to emit ultraviolet light of a second light quantity for finally curing the ultraviolet curable inks temporarily cured by the first ultraviolet light irradiation device. The second ultraviolet light irradiation device is disposed anterior to the first ejecting device in a second direction, which is perpendicular to the first direction and is a moving direction of a recording medium relative to the first ejecting device.

Abstract: An ink receiving unit for an inkjet printer includes an ink receiver and an ink removing device. The inkjet printer has an inkjet head configured to eject ink onto a first surface of a medium. The ink receiver is provided to face the inkjet head via the medium. The ink receiver is configured to receive ink dripping from a second surface opposite to the first surface of the medium during printing. The ink removing device is configured to remove the ink from the ink receiver. The ink receiver unit is detachably mounted to a main body to which the inkjet head is mounted.

Abstract: A printer including a medium supporting member that supports a print medium in a state placed thereon, a print head that has nozzles for ejecting ink droplets downward and freely reciprocates above the medium supporting member, and a maintenance device. The maintenance device is disposed to face the lower surface of the print head when the print head is in a standby position and receives residual ink in the nozzles which is ejected from the nozzles when the print head is in the standby position. The maintenance device has an ink receiving chamber that opens upward for receiving the residual ink ejected from the nozzles and a liquid injection member that injects liquid into the ink receiving chamber when the print head is away from a position where the print head faces the ink receiving chamber in the vertical direction.

Abstract: An inkjet printer system includes a print head, a sub tank, and a sensor. The print head is configured to eject ink. The sub tank includes an ink supply chamber and an ink detection chamber. The ink supply chamber has an ink inlet hole and an ink outlet hole connected to the print head. Ink is supplied to the sub tank through the ink inlet hole. Ink is supplied to the print head from the sub tank through the ink outlet hole. The ink detection chamber communicates with the ink supply chamber. The sensor is configured to detect an amount of ink contained in the sub tank and includes a float member provided in the ink detection chamber to float in the ink.

Abstract: A coating agent for use in UV curable inkjet printing using nonaqueous UV ink. The coating agent includes a main component that is an organic-inorganic nanocomposite, and the coating agent is configured to form an undercoat before the inkjet printing or to form a finishing coat after the inkjet printing and UV curing.

Abstract: A printer includes a holding unit, a printer head, a supporting device, a movement controller and a printing controller. The holding unit is configured to hold a print substrate having a surface to be printed. The axes X and Y pass through the print substrate. The movement controller is configured to move the holding unit and the printer head relative to each other in the directions of the axes X, Y and Z which are substantially perpendicular to each other and configured to rotate the holding unit about the axes X and Y relative to the printer head. The printing controller is configured to control ejection of the ink from the printer head according to a relative position of the holding unit and the printer head.

Abstract: A printing method that is implemented on an inkjet printer includes applying an ultraviolet curable ink on a surface of a metal.

Abstract: A print density adjusting device of print image information includes a print image information acquirer configured to acquire the print image information. A forming information acquirer is configured to acquire forming information of a medium on which an inkjet printer prints and which is to be bent. A vertex detector is configured to detect a vertex of a bent part which is to be bent based on the forming information. A bending angle detector is configured to detect a bending angle of the bent part based on the forming information. A print density adjuster is configured to adjust a print density of the print image information acquired by the print image information acquirer based on the vertex detected by the vertex detector and based on the bending angle detected by the bending angle detector.

Abstract: To appropriately suppress an impact of an air resistance encountered by ink droplets discharged from nozzles of an inkjet head. In an inkjet printer, an inkjet head (12) includes nozzles (104) and an air blowing unit (120). The air blowing unit (120) includes a primary-airflow blowing port (108) that generates a primary airflow directed towards a printing medium (50) along the ink droplets discharged from the nozzles (104), and a secondary-airflow blowing port (110) that generates a secondary airflow that is directed towards the printing medium (50) along the ink droplets on either side of the primary airflow.

Abstract: A medium transport apparatus includes a feeding roller configured to rotate around a rotational axis. A guide rail extends along the rotational axis. A slider is supported by the guide rail and movable along the rotational axis. A rotatable pinch roller is configured to clamp medium between the feeding roller and the pinch roller to move the medium. A lever is connected to the pinch roller and movable to change a clamping state with respect to the medium between the feeding roller and the pinch roller. An arm is connected to the slider and configured to take an engaging position where the arm moves the lever to change the clamping state when the slider moves along the rotational axis and a standby position where the arm is not engaged with the lever when the slider moves along the rotational axis.

Abstract: An inkjet printer includes an inkjet head, an electromagnetic-wave supplier, a wave guide, and a ventilator. The inkjet head is configured to eject ink onto a surface of a medium. The electromagnetic-wave supplier is configured to generate electromagnetic waves. The wave guide has an internal space into which the medium is to be fed. The wave guide is connected to the electromagnetic-wave supplier to apply the electromagnetic waves to the medium. The ventilator is configured to flow a gas in the internal space of the wave guide.