摘要:
A liquid discharging head includes a discharge port and a liquid passage provided with bubble-generating means and a movable member. The liquid passage has one side which is closed, and one side which communicates with the discharge port and with a liquid supply port. The movable member has a free end on the closed side of the liquid passage and a fulcrum on the other side. The bubble-generating means is disposed on a wall of the liquid passage facing the free end of the movable member and facing a wall in which the liquid supply port is provided. The movable member is separated from the discharge port by a gap in the liquid passage corresponding to the bubble-generating means. The projected area of the movable member on the liquid supply port is larger than the opening area of the liquid supply port.
摘要:
A liquid ejection head includes a liquid ejection substrate having an ejection port surface, a support substrate for supporting the liquid ejection substrate, having two first positioning portions being in contact with an attaching portion, to which the liquid ejection head is attached, to determine the position of the liquid ejection head with respect to the attaching portion in a predetermined direction, and a housing for supporting the support substrate, having a second positioning portion being in contact with the attaching portion to determine the position of the liquid ejection head with respect to the attaching portion in the predetermined direction. A surface perpendicular to the ejection port surface and extending along the predetermined direction, having the second positioning portion, is disposed between two surfaces perpendicular to the ejection port surface and extending along the predetermined direction, each having one of the first positioning portions.
摘要:
There is provided a method for manufacturing a liquid discharge head that includes a discharge port, a supply path for supplying the liquid to the discharge port, a transparent member, and an absorptive member, wherein the transparent member and the absorptive member include supply path sections that become a part of a wall of the supply path. The method includes bringing the transparent and absorptive member into contact with each other in such a manner that surfaces of both members including the supply path sections are brought into contact with each other in the vicinity of the supply path sections, welding the both members by irradiating the contact portion where the both members are in contact with each other with the laser beam, and exhausting gas from an exhaust path formed on the liquid discharge head in the vicinity of the contact portion at least throughout the welding process.
摘要:
A liquid ejection apparatus includes a liquid supply member having a plurality of liquid supply passages, a connecting surface having a plurality of connecting portions connected to the liquid supply passages, a first positioning portion configured to determine relative positions between the liquid supply passages and the connecting portions in one direction along the connecting surface, and a second positioning portion configured to determine relative positions between the liquid supply passages and the connecting portions in the one direction and an other direction perpendicular to the one direction. A first distance between centers of gravity of the first positioning portion and the connecting portion farthest from the first positioning portion is longer than a second distance between centers of gravity of the second positioning portion and the connecting portion farthest from the second positioning portion.
摘要:
A liquid-ejecting head includes a recording element substrate that includes an energy generating element generating energy for ejecting a liquid from a discharge port, a supporting member that supports the recording element substrate and has a liquid chamber supplying the liquid to the recording element substrate, a first supply port formed in one surface thereof, communicating with the liquid chamber, and having fluid communication with the recording element substrate, a second supply port being smaller than the first supply port, formed in a surface opposite the one surface at a position corresponding to a longitudinal end side of the first supply port, and communicating with the liquid chamber, and a flow passage forming member that supplies the liquid to the second supply port. The cross-section of the liquid chamber in a direction extending from the opposite toward one surfaces gradually increases in part of the extending direction.
摘要:
There is provided a method for manufacturing a liquid discharge head that includes a discharge port, a supply path for supplying the liquid to the discharge port, a transparent member, and an absorptive member, wherein the transparent member and the absorptive member include supply path sections that become a part of a wall of the supply path. The method includes bringing the transparent and absorptive member into contact with each other in such a manner that surfaces of both members including the supply path sections are brought into contact with each other in the vicinity of the supply path sections, welding the both members by irradiating the contact portion where the both members are in contact with each other with the laser beam, and exhausting gas from an exhaust path formed on the liquid discharge head in the vicinity of the contact portion at least throughout the welding process.
摘要:
A liquid discharge head that is detachably attached to a recording apparatus includes a liquid discharge substrate, a planar region including a plurality of connection terminals that electrically connect the liquid discharge head to the recording apparatus by sliding relative to the recording apparatus while turning when mounted on the recording apparatus, and definition portions defining a rotational center. The planar region is disposed parallel to the rotational center. Among the plurality of connection terminals, the connection terminal disposed closer to the rotational center is longer in a direction perpendicular to the rotational center and parallel to the planar region than the connection terminal disposed more distant from the rotational center.
摘要:
A joint member is made of an elastic member whose cross sectional shape is an almost M-character shape and which has: an inserting portion formed with an opening portion and a slit; an outer edge portion as an outer peripheral portion of the joint member; and a supporting fixing portion for coupling the inserting portion and the outer edge portion on the upper portion side. A cross sectional shape of an opening of the opening portion is a shape of a circular cone frustum in which the opening and a bottom surface are coupled via an inclined surface. The slit is formed in the rectangular bottom surface. The joint member is sandwiched between a casing and a pressing plate. The inserting portion and the supporting fixing portion exist in planes which are different in the inserting direction of a liquid supply needle.
摘要:
An adhesive sheet for affixation of a wafer includes a first substrate, first adhesive layer arranged on the first substrate, second substrate arranged on the first adhesive layer, and second adhesive layer arranged on the second substrate. A chemical reaction which causes reduction in the adhesion of the first adhesive layer and a chemical reaction which causes reduction in the adhesion of the second adhesive layer are different. A method for processing using this sheet includes the steps of affixing the sheet to a wafer, dicing the wafer with the sheet affixed thereto, peeling the first substrate and first adhesive layer away from the diced wafer by reducing the adhesion of the first adhesive layer and, thereby, dividing the wafer into a plurality of chips, and peeling the second substrate and second adhesive layer away from each of the chips by reducing the adhesion of the second adhesive layer.
摘要:
A liquid discharging method for a liquid head discharge head, which is provided with a plurality of discharge ports for discharging liquid, a plurality of liquid flow paths communicated always with each of the discharge ports at one end, each having bubble generating area for creating bubble in liquid, bubble generating means for generating energy to create and grow the bubble, a plurality of liquid supply ports each arranged for each of the liquid flow paths to be communicated with common liquid supply chamber, and movable member supported with minute gap to the liquid supply port on the liquid flow path side, and provided with free end, the area of the movable member surrounded at least by the free end portion and both sides continued therefrom being made larger than the opening area of the liquid supply port facing the liquid flow path, comprises the step of setting a period for the movable member to close and essentially cut off the opening area during the period from the application of driving voltage to the bubble generating means to the substantial termination of isotropical growth of the entire bubble by the bubble generating means, hence making it possible to enhance the suppressing efficiency of the bubble growing component in the direction opposite to the discharge port, and the refilling characteristics of liquid simultaneously.