摘要:
An ink jet recording apparatus and method having an ink jet head. The ink jet head includes a housing made of a material having a high coefficient of thermal conductivity, including at least one heat source, and arranged so as to confront a recording medium; an ink holding member arranged inside the housing, the ink holding member transmitting heat generated by the heat source to melt a solid-phase ink put into the housing for holding the molten ink by capillary action; a nozzle formed member being part of the ink holding member and having at least one nozzle orifice arranged so as to confront the recording medium; and a pressure generating member arranged within the ink holding member for generating a pressure which causes ink near the nozzle orifice to jet in the form of ink drops. The ink jet recording method is achieved by the apparatus thus constructed.
摘要:
An ink jet recording apparatus and method having an ink jet head. The ink jet head includes a housing made of a material having a high coefficient of thermal conductivity, including at least one heat source, and arranged so as to confront a recording medium; an ink holding member arranged inside the housing, the ink holding member transmitting heat generated by the heat source to melt a solid-phase ink put into the housing for holding the molten ink by capillary action; a nozzle formed member being part of the ink holding member and having at least one nozzle orifice arranged so as to confront the recording medium; and a pressure generating member arranged within the ink holding member for generating a pressure which causes ink near the nozzle orifice to jet in the form of ink drops. The ink jet recording method is achieved by the apparatus thus constructed.
摘要:
An on-demand type ink jet print head including a drive assembly formed from a vibrating plate formed of a piezoelectric layer with an electrode layer on one surface and an electrically conductive, physically resilient layer on the opposite surface of the piezoelectric layer. The vibrating plate is secured to a base and has two opposing edges defining a free space therebetween. The vibrating plate is slit into a plurality of strips and these strips are cross-slit in the widthwise direction to form a row of reed pieces secured to each opposing edge of the base in a cantilever configuration and extending into the free space from each edge toward the reed pieces extending from the opposite edge with a space therebetween. The reed pieces are electrically and mechanically independent of each other and have negligible electrical and mechanical interference with each other. Selective application of an electric field to the piezoelectric layer causes the reed pieces to deflect and jet ink from the print head onto a recording medium.
摘要:
An ink jet printing apparatus in which the ink jet print head is constructed to eliminate problems caused by air bubbles that can be present in fluid hot-melt ink. The apparatus head includes a heater to melt solid ink or lower the viscosity of high viscosity semi-solid ink and a plurality of ink jet nozzles corresponding to a series of piezoelectic vibrating elements that are positioned so that piezoelectric oscillations propel ink through the nozzles. The vibrators and nozzles are spaced so that if air bubbles are present in the melted ink the bubbles will be induced to travel away from the nozzles by piezoelectrically induced agitation so that they do not interfere with ink jet printing. The printer can include a vent hole to provide an exit for the bubbles. The vent hole can be selectively opened and closed.
摘要:
An ink jet printing apparatus in which the ink jet print head is constructed to eliminate problems caused by air bubbles that can be present in fluid hot-melt ink. The apparatus head includes a heater to melt solid ink or lower the viscosity of high viscosity semi-solid ink and a plurality of ink jet nozzles corresponding to a series of piezoelectric vibrating elements that are positioned so that piezoelectric oscillations propel ink through the nozzles. The vibrators and nozzles are spaced so that if air bubbles are present in the melted ink the bubbles will be induced to travel away from the nozzles by peizoelectrically induced agitation so that they do not interfere with ink jet printing.
摘要:
An ink-jet type recording apparatus including a connecting member which is provided with a first ink supply passage disposed in a carriage and extending in parallel toward a print head unit and a second ink supply passage extending upwardly and communicated with the ink tank and the first ink supply passage, an ink head unit connected to the connecting member for jetting ink droplets corresponding to print signals, a hollow needle engaging with a needle insertion hole of the ink tank, a filter member provided in parallel with a tapered concave portion formed between the hollow needle and the second ink supply passage, a cap member detachably mounted on the print head unit for communicating with a suction pump, and a control member for driving the suction pump in a first suction mode which operates intervally and a second suction mode which operates continuously.
摘要:
An ink jet recording head unit includes: at least one nozzle array in which a plurality of nozzle openings are arrayed; a plurality of common ink chambers, each adapted to store ink to be ejected; compliance parts provided to wall surfaces defining the common ink chambers, respectively; and a plurality of ink flow passages which supply ink from ink supplying sources through the common ink chambers to the nozzle openings. Of the plurality of the ink flow passages, an ink flow passage shorter than another ink flow passage has the compliance part of the common ink chamber, which is located at a middle of the ink flow passage and which is set smaller in comparison to the other ink flow passage.
摘要:
A filter chamber having a portion inclined in relation to the horizontal direction is formed between an ink supply channel having one end communicating with an ink cartridge and a throughhole communicating with an ink-jet recording head, and a filter plate is placed in the filter chamber so as to diagonally traverse it, so that ink is allowed to pass through the whole surface of the filter plate.