Patent application number | Description | Published |
20100007699 | LIQUID EJECTION HEAD UNIT, METHOD FOR MANUFACTURING LIQUID EJECTION HEAD UNIT, AND LIQUID EJECTION APPARATUS - There is provided with a liquid ejection head unit, a method for the liquid ejection head unit, and a liquid ejection apparatus in which liquid ejection heads can be positioned with high precision and the liquid ejection heads can easily be replaced. | 01-14-2010 |
20100289854 | MANUFACTURING METHOD FOR LIQUID EJECTING HEAD UNIT, AND LIQUID EJECTING APPARATUS - A liquid ejecting head unit includes liquid ejecting heads, each having a row of nozzles that eject liquid. The liquid ejecting heads are anchored to a base plate. An anchoring plate is anchored to the base plate and positions the liquid ejecting heads relative to the base plate. A reference mark is formed in the anchoring plate and a positioning mark is formed in the base plate for positioning the anchoring plate relative to the base plate. The positioning marks are formed along the direction in which the nozzles are arranged in a row. A related manufacturing method includes selecting the positioning mark in accordance with a predetermined resolution and anchoring the anchoring plate to the base plate so that the reference mark and the selected positioning mark are in the same relative positional relationship. The liquid ejecting heads are anchored to the base plate using the anchoring plate. | 11-18-2010 |
20110234701 | LIQUID EJECTING HEAD, LIQUID EJECTING HEAD UNIT, AND LIQUID EJECTING APPARATUS - Concave portions are provided at both side faces of the reinforcing plate in the juxtaposition direction of the actuators on a discharge face side in which the nozzle orifices are opened. Second exposed portions, in which corner portions that include the discharge face sides of convex portions formed by the concave portions and the side faces of the reinforcing plate are exposed, are provided at both side faces of the case in the juxtaposition direction of the actuators. | 09-29-2011 |
20110234709 | LIQUID EJECTION HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes an ink jet recording head body that ejects ink and a head formed of a resin with a reinforcement member integrally molded therein and having a housing, wherein the head includes a groove in which a part of the reinforcement member is exposed to the bottom surface, and a liquid hold that holds ink and is disposed at the lower end of the groove in the vertical direction. | 09-29-2011 |
20110242185 | LIQUID EJECTING HEAD, LIQUID EJECTING HEAD UNIT AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a pressure generation chamber which fluidly communicates with a nozzle opening through which liquid is discharged, a pressure generation unit which causes pressure change on liquid in the pressure generation chamber, a manifold which serves as a liquid chamber common to a plurality of the pressure generation chambers, a flexible film which is configured to cover the manifold so as to absorb a pressure change generated in the manifold, and a heat generation unit which is formed on the flexible film at a region opposed to the manifold and is made of a pattered metal. | 10-06-2011 |
20110242194 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a main liquid ejecting head body, a head holder, and a sealing member, disposed between the main liquid ejecting head body and the head holder, that has a communication opening that communicates between a first liquid flow channel and a second liquid flow channel. The sealing member further has a close-contact portion provided at the circumferential edge of the communication opening; a first contact portion, provided in correspondence with the external circumferential portion of the main liquid ejecting head body, that protrudes toward the main liquid ejecting head body and makes contact with the main liquid ejecting head body; and a second contact portion that protrudes toward the head holder and makes contact with the head holder. | 10-06-2011 |
20120182351 | SEALING MEMBER, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A sealing member, disposed between a first member in which a first liquid flow channel is provided and a second member in which a second liquid flow channel that communicates with the first liquid flow channel is provided, includes: a plurality of communication openings; a reinforced portion in which the communication openings are provided; at least two first reference holes; a flexible portion, provided between the two first reference holes, that is weaker than the reinforced portion; and a second reference hole provided between the two first reference holes. | 07-19-2012 |
20120182363 | FLOW PATH MEMBER, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A seal member is held in tight contact with a first inner wall of a first opening of a flow-in path section (ink inlet hole) by a fixing member. An ink supply pipe is urged and held into a holding hole of the seal member, so that the ink supply pipe is held in a predetermined position with respect to the first inner wall of the first opening of the ink inlet hole and a second inner wall of a second opening of the ink inlet hole. As a result, the ink supply pipe is held in the ink inlet hole with the first opening of the ink inlet hole being kept airtight. | 07-19-2012 |
20120256989 | LIQUID EJECTING HEAD, LIQUID EJECTING HEAD UNIT AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a liquid channel having a pressure generating chamber communicated with a nozzle opening that ejects liquid, and a first liquid chamber installed at one end of the pressure generating chamber to communicate a plurality of pressure generating chambers; a pressure generating unit for changing pressure in the pressure generating chamber so that liquid is discharged from the nozzle opening; a heating unit for heating liquid in the liquid channel at an upstream of the pressure generating chamber; a second liquid chamber installed at the other end of the pressure generating chamber; and a circulating channel formed among a pressure generating chamber group having at least one pressure generating chamber to connect the first liquid chamber and the second liquid chamber. | 10-11-2012 |
20140267491 | LIQUID EJECTING APPARATUS - Provided is a liquid ejecting apparatus including a liquid ejecting head that ejects liquid through nozzle openings, and a wiper that sweeps a liquid ejection surface side of the liquid ejecting head, in which the liquid ejecting head includes a nozzle plate having the liquid ejection surface and a protection member that protrudes further on a liquid discharging side than the nozzle plate, and the wiper sweeps a surface of the protection member, which is an exterior surface of the protection member intended to be swept, toward the nozzle plate side, and then the wiper sweeps the liquid ejection surface so that the wiper moves away from the surface of the protection member and comes into contact with a portion between the nozzle openings on the nozzle plate and an end portion of the nozzle plate, which is located on an opposite side in a sweeping direction. | 09-18-2014 |
20140285582 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a nozzle plate including a nozzle opening provided on a first surface of a flow path member with a flow path formed therein, and a protective member including a flexible portion that seals a portion of the flow path provided on the first surface of the flow path member. A position of a portion of the flow path member onto which the nozzle plate is attached and a position of a portion of the flow path member onto which the protective member is attached are different from one another in a discharge direction of a liquid. | 09-25-2014 |
20140292908 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A cover member is fixed to a head chip in an area in the vicinity of a nozzle plate but does not constitute a communication path, and thus causes no liquid leakage. The head chip discharges droplets of a discharge liquid that is supplied via the communication path which is formed from nozzles thereof without depending on the cover member. A surface of the nozzle plate is positioned on a side further apart from a printing medium than from a surface of the cover member and is surrounded. As a result, abutting of the printing medium against a side surface of the nozzle plate is avoided. | 10-02-2014 |
20140292909 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A case member is formed into a molded article and includes a wall-shaped enclosure projecting to face a printing medium side and forming a predetermined space. A plurality of projections are formed at positions apart from each other on a top portion of the wall-shaped enclosure. A cover member is fixed to tops of the plurality of projections and is set in an end section of the wall-shaped enclosure. With the projections, the height setting can be finely adjusted by finely adjusting of a mold during resin molding. It is thus possible to maintain a desired height with high accuracy. | 10-02-2014 |
20140292914 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - An end section part of a cover member is bent across a predetermined length toward a wiping direction, and a bending angle with respect to a plane is between 45° and 80°. When the wiper relatively begins to abut against the end section of the cover member, a top of the wiper first abuts against the bent end section of the cover member and then is gradually bent and wipes a lower surface of the cover member and a surface of a nozzle plate to wipe contamination such as ink. The ink that remains on the wiper is likely to be attached to a vicinity of the bent end section against which the wiper abuts first, but is likely to come off because a water-repellent treatment is performed in both the wiper and the bent end section. | 10-02-2014 |
20140292931 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A wall-shaped enclosure that forms a space which can accommodate a head chip is formed in a projecting manner at a lower end of a lower case member. Since a cylindrical thick part is formed at the lower end of the lower case member, the lower case member is unlikely to be bent, particularly around the wall-shaped enclosure and a part where the wall-shaped enclosure is disposed. The head chip that is disposed in the space of the lower case member which is unlikely to be bent is unlikely to be subjected to an external force, and the cover member absorbs torsion generated between the head chip and the lower case member so that the head chip is even more unlikely to be subjected to the external force. | 10-02-2014 |
20140292932 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - When a lower surface of a liquid ejecting head is formed by a nozzle plate and a cover member, a surface of the nozzle plate and a surface of the cover member are water-repellent surfaces and side surfaces of the nozzle plate and the cover member are relatively hydrophilic surfaces compared to the surfaces and a gap between the nozzle plate and the cover member is filled with a filling material. If at least the side surface of the nozzle plate is covered by the filling material, the nozzle plate can be protected from static electricity. Further, if the side surface of the cover member is filled with the filling material, wiping by a wiper is improved. | 10-02-2014 |
20140292936 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A flexible cable includes a portion that is covered by a solder resist and an exposed portion that is not covered by the solder resist, in which the exposed portion contains a wiring terminal and at least continues to a position closer to an outside than an opening of a wiring member insertion side of a wiring vacant portion in a state in which the wiring terminal portion is connected to an element terminal of a piezoelectric element side and in which the wiring vacant portion is filled with an electrically insulating filling material in a state of covering a joining portion between the element terminal and the wiring terminal within the wiring vacant portion, and in a state in which a protective substrate, which forms the wiring vacant portion by partitioning, and the exposed portion of the flexible cable are not in contact with one another. | 10-02-2014 |
20140292945 | LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND METHOD OF MANUFACTURING LIQUID EJECTING HEAD - Provided is a liquid ejecting head which ejects liquid from nozzle holes by changing a pressure in a liquid flow path in a pressure chamber. The liquid ejecting head includes a flow path member which is formed of ceramic, and in which the pressure chamber is formed; and a piezoelectric element which includes at least a first piezoelectric layer which is formed of ceramic. The first piezoelectric layer of the piezoelectric element is bonded to the flow path member, and the first piezoelectric layer faces the pressure chamber. | 10-02-2014 |
20140292950 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head which ejects a liquid from a nozzle of a nozzle plate by means of pressure change in a pressure chamber includes a first member made of ceramics and including the pressure chamber, a second member located between the first member and the nozzle plate, the second member being made of a metal and including a first flow path at a position upstream to the pressure chamber so as to regulate the amount of liquid which flows into the pressure chamber, and a ground wire that grounds the second member. | 10-02-2014 |
20140292953 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a flow path portion that has a first communication path, a case member that has a second communication path, a seal member that is pinched between the case member and the flow path portion, and a cover member to which a head chip that discharges the liquid from a nozzle communicating with the second communication path is set. An opening that has a predetermined space formed inside is formed on a recording medium side of the case member. The cover member covers the opening in a state where the head chip is arranged in the predetermined space and the nozzle is exposed to an outside. The seal member allows the first communication path and the second communication path to be connected in a liquid-tight manner and seals the predetermined space on a case member side. | 10-02-2014 |
20150021411 | LIQUID EJECTING HEAD - In a liquid ejecting head that includes a pressure generating element which generates pressure fluctuations in a liquid inside a pressure chamber by applying a voltage to an electrode and a wiring member which has a wiring terminal electrically connected to the electrode, and that ejects the liquid through a nozzle by applying the voltage to the electrode and driving the pressure generating element, the liquid ejecting head includes an electrode terminal that is connected to the electrode and is formed in a series over at least a partial region in a bonding region to which the wiring terminal is bonded. The wiring terminal has multiple terminals which are formed by being spaced apart from one another in the bonding region. | 01-22-2015 |
20150035910 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A common liquid chamber that communicates with a plurality of pressure chambers includes at least one inflow port into which a liquid flows, a plurality of supply openings, arranged in a row, for supplying the liquid to each of the pressure chambers, and a slanted surface that, when viewed from a second direction that is orthogonal to an arrangement direction in which the supply openings are arranged and that follows a substrate in which the common liquid chamber is formed, is slanted so that the slanted surface overlaps with the arrangement of some of the supply openings including supply openings located at ends of the arrangement direction and approaches the arrangement of the supply openings at the end areas of the arrangement direction. At least part of the inflow port is located within the range of the arrangement of the stated some of the supply openings when viewed from the second direction. An angle of the slanted surface and a position of the inflow port are set so that a flow rate of the liquid is no less than 0.025 m/s in the vicinity of an end of the inflow port in the arrangement direction when the liquid is sucked from the nozzle openings by applying negative pressure to the nozzle openings. | 02-05-2015 |
20150042722 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head is disclosed. The liquid ejecting head includes a liquid inlet which is provided on one surface of the liquid ejecting head and to which a liquid maintaining portion that maintains liquid is connected, a recessed portion in which the liquid inlet is provided on an inner side and which is open to the one surface, a groove portion which is continuously provided across a vicinity of the recessed portion on an outer side of the recessed portion, and open to the one surface, and a communication path which communicates with a side surface where the groove portion and the one surface intersect with each other, or with a surface opposite to the one surface. | 02-12-2015 |
20150042724 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a head chip in which two or more nozzle groups are disposed, a first inlet that communicates with one of the nozzle groups and a second inlet that communicates with the other nozzle group a wiring member that is disposed between the first second inlets, a first connection flow path that is connected to the first inlet, a second connection flow path that is connected to the second inlet, and a wiring substrate to which the wiring member is connected between the first connection flow path and the second connection flow path. | 02-12-2015 |
20150042726 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a liquid discharge unit that has a pressure generating chamber group which communicates with a nozzle disposed on a nozzle surface and is formed from a plurality of pressure generating chambers disposed in a first direction, and a case member which communicates with the pressure generating chamber group and holds a liquid, in which the case member has at least one liquid inlet on the side opposite to the liquid discharge direction and at a position between the pressure generating chambers at both ends in the first direction in a plan view of the pressure generating chamber group from the opposite side, and a first liquid discharge unit and a second liquid discharge unit are arranged at positions where the first directions of the first liquid discharge unit and the second liquid discharge unit are substantially parallel to each other in a second direction that is orthogonal to the first direction, and positions of the liquid inlets of the case member respectively corresponding to the first liquid discharge unit and the second liquid discharge unit do not overlap in the second direction. | 02-12-2015 |
20150054887 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a head chip that ejects ink from a liquid ejecting surface. An inlet is disposed on the side opposite to the liquid ejecting surface. The liquid ejecting head includes an upstream flow path member, a downstream flow path member with an accommodating space that accommodates the head chip, a wiring member that is connected to a piezoelectric actuator in the head chip, and a wiring substrate. A first insertion hole, into which the wiring member is inserted, is disposed in the wiring substrate, a second insertion hole that is open to the accommodating space and the wiring substrate side for the wiring member to be inserted is formed in the downstream flow path member, and the wiring member is inserted into the first insertion hole and the second insertion hole to be bonded to the upstream flow path member side of the wiring substrate. | 02-26-2015 |
20150101732 | METHOD OF MANUFACTURING LIQUID EJECTING HEAD - Disclosed is a method of manufacturing a liquid ejecting head where first and second members with different sizes which are formed of silicon are laminated with an adhesive agent. The method includes measuring a distance between a reference point which is positionally aligned in the laminating direction with respect to an imaging unit and a surface which extends from the bonding surface of the second member, and imaging the bonding surface by calculating a focal point distance of the imaging unit based on the distance which is measured and a distance between the imaging unit and the reference point. | 04-16-2015 |
20150174901 | LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND MANUFACTURING METHOD OF LIQUID EJECTING HEAD - Provided is a liquid ejecting head including a fixing plate which includes a first surface and a second surface on a side opposite to the first surface, a plurality of head units which are fixed to the second surface such that the head units can eject liquid to the first surface side of the fixing plate, and a case member which includes a wall portion that is formed to surround the head units and fixed to the fixing plate and which has a plurality of protrusion portions formed in a part of the wall portion, which is the portion facing the fixing plate. | 06-25-2015 |
20150202875 | LIQUID EJECTING APPARATUS - A wiper member | 07-23-2015 |
20150246544 | LIQUID EJECTING APPARATUS - A liquid ejecting apparatus is provided with a liquid ejecting head that ejects a liquid from nozzle openings and a wiping section that sweeps over a liquid ejecting surface side of the liquid ejecting head, the liquid ejecting head is provided with a nozzle plate that has the liquid ejecting surface and a protective member which has an opening section, and which is provided to protrude further on a side of liquid discharge than the nozzle plate and which exposes the liquid ejecting surface, the wiping section sweeps over the liquid ejecting surface of the nozzle plate by moving toward a sweeping direction, which is an in-plane direction of the liquid ejecting surface, and, in the nozzle plate, a distance in an orthogonal direction, which is orthogonal to the sweeping direction, of a first blank space section from an end of the nozzle plate to an end nozzle opening that is provided on a side of the end is longer than a distance in the sweeping direction of a second blank space section from an end of the nozzle plate to an end nozzle opening that is provided on a side of the end. | 09-03-2015 |
20150352848 | LIQUID EJECTING APPARATUS - Provided is a liquid ejecting apparatus capable of suppressing ink from remaining on a nozzle surface. | 12-10-2015 |
20160089877 | PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element includes a first electrode layer which is stacked on the vibrating plate; a second electrode layer which is stacked on a side opposite to the vibrating plate with respect to the first electrode layer; a piezoelectric layer which is interposed between the first electrode layer and the second electrode layer; and a conductive layer which electrically connects the first electrode layer to external wiring, in which a point of contact between the conductive layer and the first electrode layer is in a vibrating region of the vibrating plate. | 03-31-2016 |