Abstract: A liquid ejection head includes a recording element substrate for ejecting liquid, a mounting section to be loaded with a liquid container, and a connector equipped with a contact spring capable of expanding and contracting in an axial direction to be brought into contact with a contact substrate provided on the liquid container. The axial direction of the contact spring is inclined relative to the direction of loading the liquid container in the mounting section.

Abstract: A liquid ejection head includes a recording element substrate that ejects liquid; an electric wiring substrate electrically connected with the recording element substrate; a support member having a recess that houses the recording element substrate; and a sealant that seals an electric connection part between both the substrates. The support member has a projection-shaped adhesive application surface at a bottom surface of the recess, on which an adhesive for bonding the recording element substrate is applied; and a projection projecting from an inner side surface of the recess near the electric connection part toward the adhesive application surface, which has a first region that is covered with the recording element substrate, and a second region extending from the first region to the projection having a wall formed of the adhesive and closing a gap between the projection and a side surface of the recording element substrate facing the projection.

Abstract: A liquid tank holding mechanism for detachably holding a liquid tank to a main body portion includes a biasing member, a cover and a lever, wherein: the biasing member biases the liquid tank in a disengaging direction with the liquid tank mounted; the lever includes a lock, a biasing portion, a shaft, and a retainer and is attached to the cover pivotally around the shaft; when the retainer abuts the retainer catch, a center of the shaft is placed so as to be closer to the bearing region than is the shortest line linking a tip of the first bearing portion and a tip of the second bearing portion.

Abstract: There are provided a liquid ejecting head having a high fabrication efficiency and a high reliability of an electric connector, and a fabricating method for the liquid ejecting head. A direction in which a channel forming member is incorporated to a casing crosses a direction in which a flat spring is resiliently deformed. In incorporating the channel forming member, an abutment portion formed at the flat spring is allowed to abut on the casing, thus deforming the flat spring. The flat spring is brought into contact with an inside contact pad by a resilient restoring force of the flat spring.

Abstract: A liquid ejection head includes a recording element substrate that ejects liquid; an electric wiring substrate electrically connected with the recording element substrate; a support member having a recess that houses the recording element substrate; and a sealant that seals an electric connection part between both the substrates. The support member has a projection-shaped adhesive application surface at a bottom surface of the recess, on which an adhesive for bonding the recording element substrate is applied; and a projection projecting from an inner side surface of the recess near the electric connection part toward the adhesive application surface, which has a first region that is covered with the recording element substrate, and a second region extending from the first region to the projection having a wall formed of the adhesive and closing a gap between the projection and a side surface of the recording element substrate facing the projection.

Abstract: A liquid ejection head includes a recording element substrate for ejecting liquid, a mounting section to be loaded with a liquid container, and a connector equipped with a contact spring capable of expanding and contracting in an axial direction to be brought into contact with a contact substrate provided on the liquid container. The axial direction of the contact spring being inclined relative to the direction of loading the liquid container in the mounting section.

Abstract: A liquid ejection cartridge having a liquid ejection section for ejecting liquid includes an electrical contact section to be electrically connected to a terminal section of an apparatus main body, the electrical contact section being formed by a plurality of printed substrates arranged on a same surface.

Abstract: A liquid ejection head includes a liquid ejection section including an element substrate having ejection ports for ejecting liquid and an electrical wiring substrate connected to a contact of the liquid ejection apparatus to transmit signals to the element substrate, a liquid tank loading section including a containing space for containing a liquid tank storing liquid to be supplied to the element substrate and a lock member having an engaging part for engaging with a holding part of the liquid tank and a fixation means for rigidly securing the liquid election section and the liquid tank loading section in position.

Abstract: A liquid ejection head including: an ejection section for ejecting liquid; an electrical wiring substrate having terminals to be electrically connected to the respective electrical contacts of a liquid ejection apparatus; a first loading section to be loaded with a first liquid storing container; and a second loading section to be loaded with a second liquid storing container having a width greater than the first liquid storing container; the wall of the liquid ejection head being provided with a rib extending in the height direction on the surface opposite to the surface mounted by the electrical wiring substrate; the second loading section and the rib being arranged at respective positions where the second loading section and the rib overlap with each other as viewed in the direction of loading the second liquid storing container in the second loading section.

Abstract: Provided is a liquid ejection head that makes it possible to achieve both of the stability of bonding and the shortening of a bonding time when bonding an electrical wiring substrate where thick leads applied with large current and thin leads applied with small current are mixed and a printing element substrate. For this purpose, the electrical wiring substrate includes wiring lines having different widths, and each of the wiring lines of the electric wiring substrate and a connecting terminal of the printing element substrate are connected by inner leads whose number corresponds to width of the wiring line.

Abstract: A coil spring fixing member includes: a mount member having an arrangement surface on which an end portion of the coil spring is disposed; a boss provided on the arrangement surface, on which boss the coil spring is fitted; and a protrusion provided at a site on a side surface of the boss, the site being apart from the arrangement surface by at least a wire diameter of the coil spring, wherein the protrusion is engaged with winding of the coil spring disposed between the arrangement surface and the protrusion, and a portion of the boss ranging includes a first region having a first diameter, and a second region which is nearer to the end portion than the first region and has a diameter smaller than the first diameter, and a step intervenes between the first region and the second region.

Abstract: A liquid discharging head includes a recording element substrate configured to discharge a liquid; an electric wiring substrate that is provided with a lead terminal that is connected to the recording element substrate; and a supporting member to which the electric wiring substrate is bonded. The electric wiring substrate is bonded to the supporting member with two or more types of adhesives including at least a first adhesive and a second adhesive whose volume resistivity is higher than that of the first adhesive, a bond strength of the first adhesive is higher than a bond strength of the second adhesive, and, at the supporting member, the second adhesive is applied such that the second adhesive is provided closer to the lead terminal than the first adhesive.

Abstract: A method for producing a liquid discharging head includes an element substrate provided with a discharge opening for discharging a liquid and a supporting member that supports the element substrate, the element substrate having a first surface and a second surface opposite to the first surface, the supporting member having a height reference surface and an element-substrate bonding surface to which the first surface is bonded with an adhesive. The method includes the steps of measuring a height h of the element-substrate bonding surface from the height reference surface; applying the adhesive to the element-substrate bonding surface; and causing the first surface to oppose the element-substrate bonding surface with the adhesive being provided therebetween, and disposing the second surface at a predetermined height m from the measured height h to harden the adhesive at a portion between the element-substrate bonding surface and the element substrate.

Abstract: There are provided a liquid ejecting head and a support member that can achieve both of breakage avoidance of a print element substrate and deformation suppression of the support member. Therefore a plate thickness of an adhesion part in the support member is thinner that a plate thickness of a main surface other than the adhesion part.

Abstract: Provided is a liquid ejection head, including: a connector unit; and a case in which the connector unit is movably placed. The connector unit includes: an electric contact member; and a housing configured to fix a portion between one end and another end of the electric contact member. The electric contact member includes a conductive member, the conductive member including an elastically deformable first electric contact portion formed on the one end side thereof, and an elastically deformable second electric contact portion formed on the another end side thereof.

Abstract: A liquid ejection head with high environmental reliability which suppresses a crack of a Si substrate and peeling-off of an ejection port forming member by relaxing a residual stress in a printing element substrate and a manufacturing method of a liquid ejection head are provided. For that purpose, after the printing element substrate is bonded and fixed to a support member, the support member is screwed and fixed through an elastic member.

Abstract: An ink jet recording apparatus records an image on a recording material by ejecting a first ink composition through at least one first liquid ejecting nozzle having an open end. The ink jet recording apparatus also includes a platen having a surface on which the recording medium is placed. The surface is away from the open end at a distance PG satisfying the relationship 0.5 mm<PG<2.5 mm. The first ink composition that has been ejected through the first liquid ejecting nozzle is split into a main droplet having a flying velocity Vm and at least one satellite droplet including a satellite droplet having a flying velocity Vs. The flying velocities Vm and Vs satisfy the relationship Vm?Vs<3 m/s.

Abstract: A piezoelectric material contains a first component that is a rhombohedral crystal that is configured to have a complex oxide with a perovskite structure and Curie temperature Tc1 and a second component that is a crystal other than a rhombohedral crystal that is configured to have a complex oxide with the perovskite structure and Curie temperature Tc2, in which |Tc1?Tc2| is equal to or less than 50° C.

Abstract: A printing apparatus includes an image data generating device to generate image data based on a touch detection signal supplied from a written character inputting area of a touch panel inputting device, a blank space detecting device to detect and identify line data and blank space data based on the image data, an alignment processing device to delete the blank space data from the image data and to align the remaining line data end to end in a tape conveying direction of a print receiving tape, a printing data generating device to generate printing data by executing a size conversion of the line data aligned end to end so as to match the line data to a tape width, and a printing processing device to execute a printing process on the print receiving tape based on the printing data.

Abstract: Data of a distributed, compressed and restored index (D-CRX) related to a correspondence relation between a key value related to a registration request and NID, and data of a distributed and compressed result set cache (D-CRS) related to a correspondence relation between a distributed row identifier (RID) taking a unique value every column in a table constituting a distributed database and the NID are distributed and stored in each of slave nodes 15, 17 and 19. When the data of the D-CRX is to be distributed and stored in each of the slave nodes 15, 17 and 19, the same slave node as the slave node determined as a storage location for the data of the D-CRS is determined as a storage location of the data of the D-CRX in relation to the data of the D-CRX to which the same NID as the NID indicated by the data of the D-CRS is assigned.