Abstract: Adhesion of particles to a liquid ejecting head due to an electric field generated at an electric power supply wire disposed in the liquid ejecting head can be suppressed. The liquid ejecting head is provided with a conductive member covering at least a part of the electric power supply wire for supplying electric power to an ejection energy generating unit configured to generate ejection energy for ejecting liquid, with an insulator therebetween. The conductive member covers the electric power supply wire in a coverage determined based on a relative movement speed between an ejection port and a print medium, a size of particles floating between an ejection port forming surface and the print medium, an electric charge amount of the particles, and a voltage applied to the electric power supply wire.

Abstract: An inkjet apparatus includes, a carriage, mounting a head that discharges ink, configured to reciprocally move with respect to a sheet that receives the ink, a sensor unit, attached to the carriage, configured to read information from the sheet, and a rectifying skirt, attached to the carriage, having a rectifying surface that faces the sheet. The sensor unit is disposed above the rectifying skirt.

Abstract: There is provided a liquid ejecting apparatus and a liquid ejecting head in which mist does not close an ejection port so as to prevent any degradation of the reliability of ejection. In view of this, a ceiling surface is formed between a mist recovering unit and a gas blowing unit in a mist recovering mechanism, thus forming a recess. Inside of the recess are formed a suction port of the mist recovering unit and a gas blowing port of the gas blowing unit.

Abstract: A platen includes: a supporting portion that can support a sheet; a suction unit that sucks the sheet in such a manner as to attach the sheet to the supporting portion; a first ink receiver that receives ink ejected downstream of the leading end of the sheet passing the supporting portion; and a second ink receiver that receives ink ejected upstream of the trailing end of the sheet passing the supporting portion.

Abstract: A printing device includes: a head that ejects an ink on a medium to perform printing; and a mist collection mechanism having: a suction port facing the medium and sucking air near the head; an exhaust port discharging the sucked air; and an airflow path between the suction port and the exhaust port, wherein the airflow path includes a first spatial region located on a side of the suction port, and a second spatial region located on a side of the exhaust port and adjacent to the first spatial region through a communicating port having an opening area smaller than that of the suction port.

Abstract: A liquid ejection apparatus is provided which serves to simplify a configuration for collection of mist and to suppress the adverse effect, on landing accuracy for a liquid, of an electrostatic force for connection of mist. The ink jet printing apparatus has a blowout mechanism configured to blow out a gas through a blowout port toward a print medium. Furthermore, the ink jet printing apparatus has an electrode disposed on a platen that supports the print medium and configured to attract mist to the print medium when the electrode is supplied with power.

Abstract: A liquid ejecting head ejects liquid from a plurality of ejection orifices thereof for recording while being moved relative to a recording medium. The liquid ejecting head includes a gas discharge port configured to allow gas to be discharged therefrom. The gas discharge port is disposed on a downstream side of the ejection orifices in a direction of relative movement of the recording medium as viewed from the liquid ejecting head. The gas discharged from the gas discharge port joins an airflow that forms a vortex on an upstream side of the ejection orifices in the direction of relative movement. The vortex is generated by the liquid ejected from the ejection orifices.

Abstract: A suction hole sucks air existing in a region S together with mist is formed downstream of a liquid ejecting unit, as viewed from the liquid ejecting unit, in a movement direction (i.e., a direction E) of a print medium in the case of relative movement between the liquid ejecting unit and the print medium. Moreover, a blowing hole blows air toward the print medium so as to generate a vortex of gas downstream of the suction hole is formed downstream of the suction hole in the movement direction. Here, a relationship expressed by the following expression is satisfied: ??h/3 where ? represents a maximum vortex core radius (mm) of the vortex in a direction perpendicular to the print medium and h represents a distance (mm) between a blowing hole and the print medium.

Abstract: There is provided a liquid ejecting apparatus and a liquid ejecting head in which mist does not close an ejection port so as to prevent any degradation of the reliability of ejection. In view of this, a ceiling surface is formed between a mist recovering unit and a gas blowing unit in a mist recovering mechanism, thus forming a recess. Inside of the recess are formed a suction port of the mist recovering unit and a gas blowing port of the gas blowing unit.

Abstract: A liquid ejecting head is provided with a suction port capable of avoiding the return of mists, which have already been sucked through a suction port, back to the suction port. In view of this, the inner diameter of a suction tube for allowing liquid mists taken in through the suction port to pass is designed such that a meniscus is formed before a liquid droplet adhering to the inside of the suction tube grows enough to move toward the suction port.

Abstract: Gas is ejected toward a region between a liquid ejection head and a recording medium so as to enlarge and stabilize a vortex generated by an airflow generated by liquid droplets ejected from ejection ports. Accordingly, an airflow turbulence generated between the liquid ejection head and the recording medium is reduced and displacements of positions at which the liquid droplets are applied due to the airflow turbulence are reduced.

Abstract: Gas is blown at a predetermined speed from a predetermined area on an orifice substrate with reference to the position of an ejection port array.

Abstract: A liquid ejecting head ejects liquid from a plurality of ejection orifices thereof for recording while being moved relative to a recording medium. The liquid ejecting head includes a gas discharge port configured to allow gas to be discharged therefrom. The gas discharge port is disposed on a downstream side of the ejection orifices in a direction of relative movement of the recording medium as viewed from the liquid ejecting head. The gas discharged from the gas discharge port joins an airflow that forms a vortex on an upstream side of the ejection orifices in the direction of relative movement. The vortex is generated by the liquid ejected from the ejection orifices.

Abstract: The present invention suppresses the adhesion of a particle to a liquid ejecting head due to an electric field generated at an electric power supply wire disposed in the liquid ejecting head. The liquid ejecting head is provided with a conductive member covering at least a part of the electric power supply wire for supplying electric power to an ejection energy generating unit configured to generate ejection energy for ejecting liquid via an insulator. The conductive member covers the electric power supply wire in a coverage determined based on a relative movement speed between an ejection port and a print medium, a size of a particle floating between an ejection port forming surface and the print medium, an electric charge amount of the particle, and a voltage applied to the electric power supply wire.

Abstract: An ink mist collection apparatus capable of suppressing adhesion of ink mist to an inner surface of a suction path, an ink jet printing apparatus, and an ink mist collection method are provided. Air above a print medium is sucked with the ink mist from a suction port through a suction path, the suction port being located downstream with respect to a print head in a conveying direction of the print medium and being opposite to the print medium. Gas is discharged from a discharge port into the inside of the suction path.

Abstract: The present invention suppresses the spread of a mist of a liquid ejected from a liquid ejection head. Air is blown out toward a printing medium from a blowing-out opening relatively moving together with a print head, as the liquid ejection head, with respect to the printing medium. Air on the printing medium is sucked into a suction opening relatively moving together with the print head with respect to the printing medium. An ink ejection opening of the print head, the blowing-out opening, and the suction opening are arranged in the order from an upstream side to a downstream side in a moving direction of the printing medium with respect to the print head.

Abstract: A printing device includes: a head that ejects an ink on a medium to perform printing; and a mist collection mechanism having: a suction port facing the medium and sucking air near the head; an exhaust port discharging the sucked air; and an airflow path between the suction port and the exhaust port, wherein the airflow path includes a first spatial region located on a side of the suction port, and a second spatial region located on a side of the exhaust port and adjacent to the first spatial region through a communicating port having an opening area smaller than that of the suction port.

Abstract: A liquid ejection apparatus is provided which serves to simplify a configuration for collection of mist and to suppress the adverse effect, on landing accuracy for a liquid, of an electrostatic force for connection of mist. The ink jet printing apparatus has a blowout mechanism configured to blow out a gas through a blowout port toward a print medium. Furthermore, the ink jet printing apparatus has an electrode disposed on a platen that supports the print medium and configured to attract mist to the print medium when the electrode is supplied with power.

Abstract: There are provided a mist collecting mechanism capable of efficiently sucking and collecting an air blown out from a blow-out unit and a liquid ejection apparatus including the mist collecting mechanism. The mist collecting mechanism includes a suction port configured to suck an air containing mists. Moreover, the mist collecting mechanism includes a first blow-out port that blows out an air in order to guide the air containing mists to the suction port. Moreover, the mist collecting mechanism includes a second blow-out port that blows out an air in order to adjust a position, toward which the air blown out from the first blow-out port flows, so that the air blown out from the first blow-out port is appropriately sucked by the suction port.

Abstract: Air blown out from one blowing-out opening of a pinch roller which is within a predetermined angle range forms an air flow of a flow rate Fc which heads for a region between a suction mechanism and a print medium. This makes it possible to efficiently guide the air blown out from the blowing-out opening into the region, and as a result, ink mist can be collected satisfactorily even in a case where the amount of air blown from the pinch roller is relatively small. Further, in this case, the flow rate Fe of a flow blown from the pinch roller is appropriately determined, whereby the suction mechanism can collect substantially 100% of air and ink mist flowing into the region.