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: 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: 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: 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: A PLC system includes a programmable logic controller including a PLC unit and a storing unit and an arithmetic-expression-data-creation supporting apparatus causing the PLC unit to create arithmetic expression data of an arithmetic expression to be executed by the PLC unit, and the arithmetic-expression-data-creation supporting apparatus includes an input unit to receive, from a user, the arithmetic expression including input information serving as a variable used in an arithmetic operation and a constant used in the operation and an arithmetic-expression processing unit to obtain a calculation sequence of the expression, and the storing unit retains an arithmetic-expression-data table for managing the arithmetic expression data including the input information, the constant and the calculation sequence, and the PLC unit includes an operation unit connected to the storing unit, to execute an arithmetic operation of the arithmetic expression according to the calculation sequence using the input information and

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 cylindrical gasket 27 includes a reinforcing member 70 made from a compressed belt-shaped metal wire net 5, a heat-resistant material 71 filled in meshes of the belt-shaped metal wire net 5 of the reinforcing member 70, and pores which are dispersedly distributed in the reinforcing member 70 and the heat-resistant material 71. An inner peripheral surface 23, an outer peripheral surface 24, and annular end faces 25 and 26 of the cylindrical gasket 27 are each formed by a smooth surface in which the heat-resistant material 71 and the reinforcing member 70 are present in mixed form. In the cylindrical gasket 27, the volume contents of the reinforcing member 70, the heat-resistant material 71, and the pores are 32 to 60%, 5 to 58%, and 10 to 35%, respectively.

Abstract: An analog input unit as an analog unit attached to a PLC includes an A/D converting unit as a first converting unit performing conversion between an analog value and a digital value according to a first conversion characteristic, a shared memory as a retaining unit retaining a conversion characteristic table indicating a second conversion characteristic of conversion between digital values, and a conversion processing unit as a second converting unit converting a digital value according to the second conversion characteristic by referring to the conversion characteristic table. The conversion characteristic table includes combinations of a first value that is a digital value and a second value that is a conversion result of the first value, the number of which corresponds to resolution of a digital value in the analog unit, and the second value of each of the combinations of the first value and the second value can be adjusted.

Abstract: An air conditioning system processes sensible heat load and latent heat load of a target space, and adjusts temperature and humidity of the target space. The air conditioning system includes a cooling heat exchanger circulating a heat exchanging medium to cool and dehumidify air blown into the target space, a heater heating the air cooled and dehumidified by the heat exchanger, a staged variable speed fan creating a flow of the air blown into the target space through the heat exchanger and the heater, and a control unit. The control unit has a cooling adjusting unit adjusting a quantity of cooling supplied from the heat exchanging medium to the air in the heat exchanger, a heating adjusting unit adjusting a quantity of heating supplied from the heater to the air, and an air flow adjusting unit adjusting an air flow volume supplied by the fan.

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: 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: An electrophotographic recording sheet having, on a water-resistant support, a toner-receiving layer containing a liphophilic polymer antistatic agent with a specific surface resistivity of from 1×107 to 9×1012?. This electrophotographic recording sheet is excellent in recording quality, fixability, water resistance, durability, color printability and continuous printability.

Abstract: A spherical annular seal member 40 includes: a spherical annular base member 38 which is defined by a cylindrical inner surface 34 defining a through hole 33 in a central portion, a partially convex spherical surface 35, and annular end faces 36 and 37 on large- and small-diameter sides of the partially convex spherical surface 35; and an outer layer 39 formed integrally on the partially convex spherical surface 35 of the spherical annular base member 38.

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.

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 spherical annular seal member 46 includes a spherical annular base member 42 defined by a cylindrical inner surface 38, a partially convex spherical surface 39, and large- and small-diameter side annular end faces 40 and 41 of the partially convex spherical surface 39; a plurality of partially convex spherical intermediate layers 43 formed integrally on the partially convex spherical surface 39 of the spherical annular base member 42 and laminated in a radial direction; and an outer layer 45 formed integrally on a partially convex spherical surface 44 of the outermost partially convex spherical intermediate layer 43 of these partially convex spherical intermediate layers 43.

Abstract: A spherical annular seal member 40 includes: a spherical annular base member 38 which is defined by a cylindrical inner surface 34 defining a through hole 33 in a central portion, a partially convex spherical surface 35, and annular end faces 36 and 37 on large- and small-diameter sides of the partially convex spherical surface 35; and an outer layer 39 formed integrally on the partially convex spherical surface 35 of the spherical annular base member 38.

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.