摘要:
An electrostatic blackboard having an image display function for displaying on an electrostatically recordable blackboard display a visible toner image converted from an electrostatic latent image formed on the backboard by an electrostatic recording head includes copying apparatus for transfering the visible image on the blackboard to a large-size paper sheet. A semi-permanent latent image toner fusing operation is provided to create a semi-permanent visible image, yet permit easy erasing.
摘要:
A flexible electrostatic recording medium used in conjunction with an electronic blackboard includes a base layer composed of a synthetic resin, a conductive layer formed on the base layer, and a dielectric layer formed on the conductive layer by a thin transparent film, preferably of polyvinylidene fluoride, and adhered to the conductive layer by means of an adhesive.
摘要:
A portable card writer for a card with a magnetic stripe provided thereon comprises a chassis, a drive mounted on the chassis for moving the card to and fro, guided along the chassis, a magnetic writing head mounted on the chassis, a magnetic reading head mounted on the chassis, and a printer for writing data in the card at a portion other than the magnetic stripe.
摘要:
A card issuance apparatus has an input for inputting data required for issuing a card, a memory for storing the data, a recording device for recording the data in a recording section on the card, a cancellation key, and a cancellation device responsive to operation of the cancellation key for cancelling the data stored in the memory.
摘要:
A printing apparatus having a printing head that prevents ink, diluent, and a mixed solution thereof from adhering to and spreading about a portion of the printing head around a nozzle. The printing apparatus has an enhanced ability to reproduce a gradation of concentration, thereby making it possible to form a recorded image of high resolution. The printing head has a first nozzle, which discharges a discharge medium, and a second nozzle, which discharges a metering medium. The orifices of the first and second nozzles are adjacent to each other in a nozzle outlet face of the printing head. A groove, a hydrophilic portion, or an insular projection is formed between the first and second nozzles to control the spread of ink, diluent, and a mixed solution thereof around the nozzles. The hydrophilic portion may be made by a non-processed portion of the outlet face of the printing head, and a portion other than the nonprocessed portion may be made a hydrophobic portion. Several variations of the groove, hydrophilic portion, and insular projection are disclosed.
摘要:
A printer apparatus having a print head which has a first pressure chamber into which a discharge medium is introduced, a second pressure chamber into which a feed medium is introduced, and at least one set of nozzles comprised of a first nozzle communicated with the first pressure chamber and a second nozzle communicated with the second pressure chamber arranged adjacent to each other and which mixes and discharges the discharge medium and the feed medium from the nozzles, wherein a liquid repellent treatment is applied to at least one of the portion between the mutually adjoining first nozzle and second nozzle and a portion between the sets of nozzles adjoining each other on a nozzle opening face of the print head; wherein a projecting portion is formed on at least one of the portion between the mutually adjoining first nozzle and second nozzle and the portion between the sets of nozzles adjoining each other on the nozzle opening face of the print head; or wherein a recessed portion is formed between the mutually adjoining sets of nozzles of the nozzle opening face of the print head.
摘要:
A method of manufacturing a printing head which can prevent ink, diluent, and a mixed solution thereof from adhering to and spreading about a portion of the print head around the nozzle is disclosed. The method comprises forming a hydrophobic film on a surface of a nozzle member, forming a first nozzle into which a discharge medium is introduced, and a second nozzle into which a metering medium is introduced, in the nozzle member. The first nozzle has a first orifice on the surface, and the second nozzle has a second orifice also on the surface. The first and second orifices are located so as to ooze the metering medium from the second orifice to the first orifice through the surface. An additional step of removing the hydrophobic film from a portion of the surface between the first and second orifices to define a groove is included.
摘要:
ProblemTo provide an aluminum alloy brazing sheet, featuring a good brazing property that prevents diffusion of molten filler material in a core material of the aluminum alloy brazing sheet during a brazing process and exhibiting a superior corrosion resistance to an exhaust gas condensate water after the brazing process, a method of manufacturing the aluminum alloy brazing sheet, and a high corrosion-resistant heat exchanger using the aluminum alloy brazing sheet.Resolving MeansA high corrosion-resistant aluminum alloy brazing sheet comprises a core material composed of an aluminum alloy, a sacrificial anode material cladded on one surface of the core material, and a filler material composed of an Al/Si-based alloy and cladded on another surface of said core material, and is characterized in that the sacrificial anode material is composed of an aluminum alloy which contains Si falling within a range of 2.5-7.0 mass %, Zn falling a range of 1.0-5.5 mass %, Fe falling within a range of 0.05-1.0 mass %, and which is composed of the balance Al and the inevitable impurities, and that a clad thickness of the sacrificial anode material falling within a range of 25-80 μm. Also, there is provided a method of manufacturing the aluminum alloy brazing sheet, and a high corrosion-resistant heat exchanger using the aluminum alloy brazing sheet.
摘要:
A sintered body which includes at least indium oxide and gallium oxide and comprises voids each having a volume of 14000 μm3 or more in an amount of 0.03 vol % or less.
摘要:
A radial line slot array antenna has a slotted conductor plate in which a plurality of slots are formed and arranged in a spiral. The plurality of slots are arranged in the slotted conductor plate such that the arrangement distance in a radial direction between the slots varies gradually between a first portion determined based on a first frequency and a second portion determined based on a second frequency that is different from the first frequency.