摘要:
A liquid discharging method is provided with heat generating elements for creating air bubbles for discharging liquid, discharge ports arranged corresponding to the heat generating elements, first liquid flow paths conductively connected with the discharge ports, second liquid flow paths arranged corresponding to the heat generating elements, and a separation wall to separate the first and second liquid flow paths. This separation wall is provided with the free end, which is caused to be displaced to the first liquid flow side by pressure exerted by air bubbles created by the heat generating elements, thus leading the pressure toward the discharge port side for discharging liquid from the discharge ports. For this liquid discharging method, liquids are supplied to the second liquid flow paths and to the first liquid flow paths from different sides, respectively, in order to stabilize the flow of liquid for the enhancement of the discharging efficiency and power, while reducing the influence of cavitation with respect to the heat generating elements to make the life thereof longer.
摘要:
A liquid ejecting method using a liquid ejection head having a movable member disposed faced to a bubble generating region and having a free end at a downstream side thereof with respect to a flow direction of liquid, wherein the free end of the movable member is displaced by a pressure generated by a bubble in the bubble generating region, and the pressure is directed toward an ejection outlet by the movable member to eject the liquid through the ejection outlet, the improvement residing in that: the free end of the movable member providing a substantially harmetically sealed state for the bubble generating region, is displaced so as to guide a pressure wave resulting from the bubble formation toward the ejection outlet while non-contact state is substantially maintained between the movable member and the bubble.
摘要:
A liquid discharging head includes a discharge port for discharging liquid, a liquid passage communicated with the discharge port, a bubble generating area for generating a bubble in the liquid in the liquid passage, the bubble generating area including a heater for heating the liquid in the liquid passage, and a movable member disposed in a confronting relation to the bubble generating area in the liquid passage and adapted to be shifted by pressure caused by generating the bubble at the bubble generating area to direct the pressure toward the discharge port and to be returned to its initial position by negative pressure due to contraction of the bubble, and wherein resistance of the movable member against the liquid in the liquid passage when it is shifted is smaller than that when it is returned.
摘要:
There is disclosed a liquid discharging method and apparatus in which a bubble is formed and grown in the liquid is communicated with atmosphere at an area of a discharge opening, and in which a movable member having a free end which guides the bubble toward the discharge opening while regulating growth of the bubble.
摘要:
There is disclosed a liquid discharging method and apparatus in which a bubble is formed and grown in the liquid communicated with atmosphere at an area of a discharge opening, and in which a movable member having a free end which guides the bubble toward the discharge opening while regulating growth of the bubble.
摘要:
A method for discharging ink from a discharge port using a liquid jet recording head having the discharge port for discharging liquid, a liquid flow path communicating with the discharge port, a liquid discharge heat generating element provided in the liquid flow path to apply thermal energy for discharging the liquid to the liquid with bubble generation and a fluid resistance element provided upstream of the liquid discharge heat generating element in the liquid flow path. A bubble generating region is used as the fluid resistance element and a movable member is provided facing the bubble generating region and having a free end, the movable member being shiftable upon bubble generation at the region. The method includes the step of generating a bubble by driving the liquid discharge heat generating element and generating the bubble and shifting the movable member by the fluid resistance element. Also discloses are a liquid discharge head, head cartridge, and recording apparatus which perform the method.
摘要:
A manufacturing method for a liquid ejecting unit having a comb-like separation wall, a displaceable member and a grooved member mating with the comb-like separation wall includes engaging the separation wall with the grooved member while being positioned by an abutment reference.
摘要:
A liquid discharge head comprises discharge ports for discharging the liquid, a bubble producing area for producing an air bubble in the liquid of liquid flow channels, and a movable member, which is disposed toward the bubble producing area, and displaceable between a first position and a second position farther away from the bubble producing area than the first position, the liquid discharge head discharging the liquid in such a manner that the movable member is displaced from the first position to the second position by a pressure due to a bubble produced in the bubble producing area, and the bubble is more greatly expanded downstream than upstream in a direction toward the discharge port, due to the displacement of the movable member. The head has a check valve disposed in a liquid supply passage leading to the liquid flow channels.
摘要:
A liquid discharging method of regulating and directing an air bubble to a discharge port by a substrate having a heat generating surface for generating heat for creating an air bubble in a liquid disposed in face-to-face relationship with a liquid discharge port, a movable member provided so as to intervene between the heat generating surface and the discharge port, and having a free end displaceable by the air bubble, the free end or a changing portion being located in an area opposed to the minimum area region of the discharge port or upstream of the opposed area, and an opposed surface opposed to a surface which provides the heat generating surface side of the movable member when the free end of the movable member is displaced by the air bubble, and fixed to cooperate with the movable member during the displacement of the movable member to direct the air bubble toward the discharge port.
摘要:
A liquid discharging head has a heat generating member in which there is a bubbling region involved in the generation of the bubble. A center of the width of the heat generating member and a center of the width of an effective bubbling region with respect to a flow direction of the liquid are identical. The conditions of the bubble generation region are given as follows: the width of the effective bubbling region≦a width of the bubble generation region