摘要:
According to one embodiment, an ink-jet head includes an insulative substrate, a nozzle plate opposed to the insulative substrate, a partition wall disposed between the insulative substrate and the nozzle plate, and including a bottom surface with a first width which is in contact with the insulative substrate, and a top surface with a second width less than the first width, which is in contact with the nozzle plate, and an adhesive which attaches the partition wall and the nozzle plate.
摘要:
According to an exemplary embodiment, there is provided an inkjet printer which causes ink to flow in a circulation path communicating from an upstream ink tank to a downstream ink tank via an inkjet head, and is able to discharge the ink, wherein the inkjet printer includes an ink temperature measuring unit adapted to measure an ink temperature in the upstream ink tank and the downstream ink tank; an ink temperature adjustment portion adapted to gradually raise the ink temperature of the upstream ink tank and the downstream ink tank; a circulation control unit adapted to circulate ink filling the circulation path in a room temperature state for a planned time; and an ink temperature control unit adapted to raise the ink temperature of the upstream ink tank and the downstream ink tank up to a preset temperature while circulating the ink after the planned time elapses.
摘要:
An inkjet head includes a nozzle to discharge liquid droplets, a pressure chamber which is configured to communicate with the nozzle and filled with liquid, a supply section which is configured to communicate with the pressure chamber and supplies the liquid to the pressure chamber, a recovery section which is configured to communicate with the pressure chamber and recovers the liquid from the pressure chamber, a bypass channel which is independent of the pressure chamber and connects the supply section with the recovery section, a pressure-control liquid chamber which is connected at one end to the bypass channel and connected at the other end to the atmosphere, and a porous member which is contained inside the pressure-control liquid chamber.
摘要:
An ink supplying mechanism includes a circulating system that connects an ink jet head having a nozzle, a pressure chamber opposed to the nozzle, and an upstream port and a downstream port that communicate with the pressure chamber, an upstream side tank that communicates with the ink jet head via the upstream port and is capable of storing an ink, a downstream side tank that communicates with the ink jet head via the downstream port and is capable of storing the ink, and a circulating pump that feeds the ink from the downstream side tank back to the upstream side tank. The ink supplying mechanism has a relief valve that is capable of opening and closing at least a liquid surface of the downstream side tank with respect to the atmospheric pressure, closes the relief valve to drive the circulating pump, sets the liquid surface of the downstream side tank to a negative pressure, and feeds the ink from the downstream side tank back to the upstream side tank via a feedback channel to circulate the ink.
摘要:
An ink-jet head includes a nozzle array including plural nozzles. The nozzle array has a first nozzle group arranged in the center thereof and second nozzle groups arranged further on outer sides than the first nozzle group. Inter-nozzle pitches of the second nozzle groups are larger than inter-nozzle pitches of the first nozzle group. A direction in which nozzles of the second nozzle group eject an ink and a direction in which nozzles of the first nozzle group eject the ink are different.
摘要:
A manufacturing method and apparatus produces various medium such as mineral substance, vitamin substance, or ceramic that include negative hydrogen icons for use by human beings and animals. In the manufacturing method, an optional mineral substance or vitamin substance as the medium in granular or powdered form is supplied to the inside of the container and filled with liquid hydrogen or hydrogen, gas. Then after leaving them in the container for a predetermined time, the medium is removed to be air dried, thereby producing the medium which is combined and included with negative hydrogen ion. Alternatively, high pressure, heat, or high voltage may be applied to the medium to contain the negative hydrogen ion in the medium.
摘要:
The metal foil of the positive electrode 1a or the negative electrode 1b in the power generating element 1 is connected along the connecting plate portion 2b which is folded, twisted, and provided in a protruding condition from the main portion 2a of the current-collector connector 2; hence the shape of the current-collector connector 2 becomes easy to form, and a battery capable of enhancing current collection efficiency, reliability and workability can be provided.
摘要:
A pad for absorbing an impact on leg portions excellent in impact absorbing performance at a time of collision of a vehicle and the like, and a floor spacer for a vehicle are provided. A pad 1 for absorbing an impact on leg portions has a plurality of ridges 3, 3, . . . on a bottom surface to be on a vehicle body side when placed in a vehicle, and is constituted of expandable beads. A floor spacer 10 is constituted of the pad 1 for absorbing an impact on leg portions and a horizontal pad 2. The ridge 3 has a wide portion 32 which becomes relatively wide from a midpoint in its longitudinal direction. The heel portions of the feet of an occupant are placed on the region of the wide portion 32.
摘要:
An ink-jet head includes a nozzle array including plural nozzles. The nozzle array has a first nozzle group arranged in the center thereof and second nozzle groups arranged further on outer sides than the first nozzle group. Inter-nozzle pitches of the second nozzle groups are larger than inter-nozzle pitches of the first nozzle group. A direction in which nozzles of the second nozzle group eject an ink and a direction in which nozzles of the first nozzle group eject the ink are different.
摘要:
“Energy per unit volume” P2(Pa) generated in ink 4 in a second ink tank 14 is maintained to the condition “P2={(1+r)×Pn}−(r×P1)” based on “energy per unit volume” P1(Pa) generated in ink 4 in the first ink tank 12, a proportion of “1:r” between channel resistance R1 (Pa·sec/m3) of ink from the first ink tank 12 to the neighborhood of a nozzle 1 and channel resistance R2 (Pa·sec/m3) of ink from the neighborhood of the nozzle 1 to the second ink tank 14, and appropriate pressure Pn (Pa) of the ink 4 in the neighborhood of the nozzle 1.