Abstract: A liquid ejection device includes a plurality of nozzles and a common ejection testing portion. The nozzles are arranged to eject a liquid. The common ejection testing portion is provided in common to the nozzles, the common ejection testing portion being arranged to perform ejection testing of each of the nozzles during printing. At least one of the nozzles is selected to be tested using the common ejection testing portion when the liquid is ejected from the nozzles based on print data. The nozzles that eject liquid being identified based on the print data, and one of the nozzles, which have not been tested, having low ejection frequency based on the print data being selected as the at least one of the nozzles to be tested.

Abstract: A liquid ejection device includes a plurality of nozzles, a plurality of piezoelectric elements, a drive signal generating portion, a selection portion and an ejection testing portion. The nozzles are arranged to eject a liquid. The piezoelectric elements are provided in respective correspondence to the nozzles. The drive signal generating portion is arranged to generate a drive signal which repeats for each of ejection cycles in which the nozzles eject the liquid onto a pixel, there being a plurality of selectable periods provided in the ejection cycles, at least one of the periods being a testing period. The selection portion is arranged to selectively apply the drive signal to the piezoelectric elements in each of the periods. The ejection testing portion is arranged to perform ejection testing of the liquid from at least one of the nozzles to be tested.

Abstract: A printer includes first transporting belts disposed in parallel at predetermined intervals in the direction intersecting the direction of transportation of print media. The first transporting belts transport a print medium while adsorbing the print medium. Second transporting belts disposed in parallel at predetermined intervals in the direction intersecting the direction of transportation of print media further transport the print media. The second transporting belts are separated from the first transporting belts at the downstream part of the first transporting belts in the direction of transportation of print media. A print head prints on the print medium. The position of separation at which the print medium is separated from the first transporting belts is different in the direction of transportation of print media between one of the first transporting belts and another one of the first transporting belts.

Abstract: At a transport pathway which transports recording paper, a passage flow path which can pass the recording paper and gas from the upstream side toward the downstream side in a transport direction is provided and also a reversing flow path portion which reverses the recording paper by passing the recording paper while twisting and rotating the recording paper with an axis line extending in the transport direction as a rotation center is provided at the passage flow path.

Abstract: A printer includes a reversal transportation path which transports a paper to which ink ejected from liquid ejecting heads has adhered toward a downstream side in the transportation direction. In the printer, the reversal transportation path is formed between a pair of guiding plates having a substantially circular arc shape along the transportation direction of the paper and opening holes which blow out wind toward the reversal transportation path from a blowing unit are provided on an inner guiding plate of the pair of the guiding plates, which is positioned at the center side of the circular arc shape.

Abstract: A liquid jet apparatus including a plurality of nozzles provided to a liquid jet head, an actuator corresponding to each of the nozzles, and drive unit that applies a drive pulse to each of the actuators, wherein the drive unit includes correction value storing unit that stores a drive pulse application timing correction value corresponding to the number of actuators to be driven at the same time, and drive pulse application timing correction unit that corrects the drive pulse application timing using the drive pulse application timing correction value stored in the correction value storing unit.

Abstract: A fluid ejecting apparatus includes a fluid ejecting head that ejects fluid onto a target; a passing-flow-path forming member that forms a passing flow path through which the target and gas can pass from the upstream side to the downstream side in the transportation direction on the downstream side of the fluid ejecting head in the target transportation direction; a first blower that blows gas toward the downstream side in the transportation direction onto a first surface of the target in the passing flow path immediately after the first surface receives fluid ejected from the fluid ejecting head; and a second blower that blows gas toward the downstream side in the transportation direction onto a second surface of the target in the passing flow path, the second surface being opposite the first surface.

Abstract: A printing apparatus which performs printing by injecting liquid from a liquid injection head onto a printing medium adhered by electrostatic force on the surfaces of a plurality of conveyor belts disposed at predetermined intervals in a direction crossing a printing medium conveyance direction during carry of the printing medium, characterized in that: the printing medium is electrostatically adhered by potential difference produced between the conveyor belts and a contact portion provided in the vicinity of the sides of the conveyor belts in the width direction such that the contact portion contacts the back surface of the printing medium and does not contact the surfaces of the conveyor belts.

Abstract: An ink jet printer includes: ink jet heads that discharge aqueous ink droplets onto a printing surface of a printing medium that is transported in a predetermined direction; a vapor supply unit that is provided at a downstream side of the ink jet head in a direction in which the printing medium is transported and supplies vapor to a surface of the printing medium opposite the printing surface of the printing medium having the liquid droplets discharged from the ink jet heads in a non-contact manner; and a vapor electrostatic deposition unit that deposits the vapor supplied from the vapor supply unit to the surface of the printing medium opposite the printing surface of the printing medium using electrostatic force.

Abstract: A head drive device of an inkjet printer having a nozzles and corresponding actuators that jet liquid drops. A drive section applies a drive signal to the actuators. The head drive device includes a drive waveform generating section that generates a drive waveform signal which is used as a reference of a signal to control drive of the actuators. A modulating section modulates a pulse of a drive waveform signal generated by the drive waveform generating section. A digital power amplifier amplifies power of a modulated signal subjected to the pulse modulation. A low pass filter smoothes a power-amplified modulated signal subjected to the power amplification by the digital power amplifier and supplies the signal as a drive signal to the actuators. A frequency characteristics adjusting section adjusts frequency characteristics of the low pass filter as a function of the number of the actuators.

Abstract: Provided is a recording apparatus comprising recording heads; a medium feeding unit; a position detecting unit; a drying section including an air generating unit and generates air, an air guiding portion, the drying section bringing the air guided by the air guiding portion into contact with the recording medium via an opening portion; a branching path which branches off over the range where the opening portion extends in the feeding direction, branches and guides part of the air flowing from the upstream side to the downstream side in the feeding direction in the air guiding portion of the drying section; an air releasing valve; and a control section which controls the opening or closing of the air releasing valve according to the position of the recording medium.

Abstract: A drying apparatus includes a transport unit that transports a target in a form of a cut sheet, on which a recording process has been performed through the attachment of liquid, from an upstream side to a downstream side of a transport direction. A drying unit performs a drying process on the transported target by blowing air toward a liquid attachment surface of the target. The drying unit is provided with a blowing port which allows air to blow toward an end portion of the target at the downstream side of the transport direction in a first direction from the upstream side to the downstream side of the transport direction, and allows air to blow toward an end portion of the target at the upstream side of the transport direction in a second direction from the downstream side to the upstream side of the transport direction.

Abstract: A recording apparatus includes a transport unit that transports a target from an upstream side of a transport direction to a downstream side of the transport direction, a recording unit having a configuration in which at least one of a plurality of unit heads is deviated from another unit head in the transport direction, and performing a recording operation by attaching liquid to a target by each unit head, the unit heads allowing liquid ejecting nozzles to form nozzle arrays in a width direction of the target perpendicular to the transport direction, and a plurality of drying units having an arrangement identical to the arrangement of the unit heads in the transport direction and the width direction at a downstream side of the transport direction as compared with the recording unit, and drying the target.

Abstract: A head drive apparatus of an ink jet printer having: a plurality of nozzles for jetting liquid drops that are provided for an ink jet head; a plurality of actuators provided in correspondence to the nozzles; and a drive unit that applies a drive signal to the actuators, wherein the drive unit comprising: a drive waveform generator that generates a drive waveform signal being standard of a signal to control drive of the actuators; a modulator that modulates a pulse of a drive waveform signal generated by the drive waveform generator; a digital power amplifier for amplifying power of a modulated signal subjected to the pulse modulation by the modulator; and a low pass filter for smoothing an amplified digital signal subjected to the power amplification by the digital power amplifier and supplying the signal as a drive signal to the actuators.

Abstract: A liquid jet apparatus including a plurality of nozzles provided to a liquid jet head, an actuator corresponding to each of the nozzles, and drive unit that applies a drive pulse to each of the actuators, wherein the drive unit includes correction value storing unit that stores a drive pulse application timing correction value corresponding to the number of actuators to be driven at the same time, and drive pulse application timing correction unit that corrects the drive pulse application timing using the drive pulse application timing correction value stored in the correction value storing unit.

Abstract: There is provided a liquid ejecting apparatus having a non contact type heater for heating a recording medium on which liquid is ejected via a liquid ejecting head, the heater having a heat generating surface and the heater being arranged in parallel to the liquid ejecting head along a transport direction of the recording medium. The liquid ejecting apparatus includes a mist suctioning unit for suctioning floating mist generated by ejection of the liquid. The mist suctioning unit includes a nozzle plate in which nozzle orifices for ejecting the liquid are formed, the nozzle plate being provided on the liquid ejecting head, an electrode member provided at a marginal portion of the heat generating surface, and an electric potential difference generator for generating an electric potential difference between the electrode member and the nozzle plate to electrostatically absorb the mist on the marginal portion of the heat generating surface.

Abstract: A liquid jet apparatus includes a plurality of nozzles provided to a liquid jet head, an actuator provided corresponding to each of the nozzles, and drive unit that applies a drive pulse to the actuator, wherein the drive unit includes correction value storing unit that stores a drive pulse application timing correction value corresponding to the number of actuators to be driven, and drive pulse application timing correction unit that corrects the drive pulse application timing using the drive pulse application timing correction value corresponding to the number of actuators to be driven stored in the correction value storing unit.

Abstract: It is an object of the invention to provide a droplet ejection apparatus and a method of detecting and judging a head failure that can detect an ejection failure and carry out appropriate recovery processing according to a cause thereof.

Abstract: A recording apparatus includes a recording unit having a record head and ejecting liquid from the record head to record dots on a recording medium; a print-data generating unit that generates print data to be recorded on the recording medium; a heating unit that emits microwaves onto the recording medium to dry the liquid ejected from the record head and is partitioned into a plurality of radiation areas to be allowed to emit the microwaves from the individual radiation areas; a radiation-quantity determination unit that determines the quantities of the microwaves to be emitted from the individual radiation areas of the heating unit in accordance with the print data; and a radiation-quantity control unit that controls the quantities of the microwaves to be emitted from the individual radiation areas on the basis of the determination on the quantities of radiation of the microwaves.

Abstract: A recording apparatus is provided which includes recording means for ejecting liquid so that the liquid is recorded on a recording medium; transporting means for transporting the recording means relative to the recording medium; microwave irradiation means for irradiating microwaves to the recording medium; microwave reception means for receiving the microwaves reflected from the recording medium; and microwave irradiation control means for determining a dryness level of the recording medium based on a reception level of the microwave reception means and controlling an irradiation dose or an irradiation intensity of the microwaves irradiated by the microwave irradiation means in accordance with the dryness level.