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公开(公告)号：US20210402771A1
公开(公告)日：2021-12-30
申请号：US17359978
申请日：2021-06-28
IPC分类号： B41J2/14
摘要： A plurality of head chips including: a nozzle plate having a plurality of nozzles configured to eject a liquid in a first direction, and a case having one or more first flow paths communicating with at least a part of the plurality of nozzles; a holder to which the plurality of head chips are fixed, which includes metal or ceramics, and which has a plurality of second flow paths communicating with at least one of the plurality of first flow paths; and a heater configured to heat the holder.
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公开(公告)号：US20190263120A1
公开(公告)日：2019-08-29
申请号：US16287094
申请日：2019-02-27
IPC分类号： B41J2/14
摘要： In a plan view from a perpendicular direction to a surface of a wiring substrate on which a wiring is provided, a buried wiring, a connection wiring, and a terminal portion of an external wiring are formed at an overlapping position, in which a recessed portion is provided at a position corresponding to the buried wiring on a surface of the connection wiring on an opposite side to the wiring substrate, and in which, in a direction intersecting an extension direction of the wiring on the surface of the wiring substrate on which the wiring is provided, a width of the connection wiring is larger than a width of the buried wiring, a width of the terminal portion of the external wiring is larger than a width of the recessed portion, and the terminal portion is provided across the recessed portion of the connection wiring.
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公开(公告)号：US20180043690A1
公开(公告)日：2018-02-15
申请号：US15660696
申请日：2017-07-26
IPC分类号： B41J2/165
CPC分类号： B41J2/16517 , B41J2/14233 , B41J2/16526 , B41J2/175 , B41J2002/14419 , B41J2002/16573 , B41J2202/11
摘要： A liquid discharge apparatus includes a plurality of pressure chambers that generate a pressure for discharging a liquid, a plurality of nozzles that communicate individually with the pressure chambers and that discharge the liquid, a common liquid chamber that includes a plurality of supply openings and that has, at an end portion side in an arrangement direction of the supply openings, a region in which flow speed of the liquid flowing toward the supply openings is higher than in another region, and a controller that controls a maintenance by expelling the liquid from the nozzles. During the maintenance, the controller controls expelling the liquid from a first nozzle to a second nozzle that is one of nozzles located on the end portion side of the first nozzle in the arrangement direction of the supply openings, in an order of the first nozzle to the second nozzle.
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公开(公告)号：US20190389219A1
公开(公告)日：2019-12-26
申请号：US16451072
申请日：2019-06-25
摘要： A liquid ejecting head including a head unit including a mounting surface on which a plurality of first terminals, to which a signal to eject ink from a nozzle is supplied, are formed, and a flexible wiring substrate including a plurality of second terminals that supply the signal to the head unit, the flexible wiring substrate bonded to the head unit with nonconductive paste while the second terminals and the first terminals are in an electrically coupled state, in which the plurality of second terminals are arranged at pitches of 50 μm or less, and in which protrusions in contact with surfaces of the first terminals are formed on surfaces of the second terminals, the protrusions protruding at a height exceeding a surface roughness of the second terminals.
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公开(公告)号：US20190381796A1
公开(公告)日：2019-12-19
申请号：US16442831
申请日：2019-06-17
发明人： Eiju HIRAI , Daisuke YAMADA , Shingo TOMIMATSU
IPC分类号： B41J2/14
摘要： There is provided a liquid discharge head including a first wiring through which a drive signal is input to a wiring substrate, in which the wiring substrate has a substrate having a first surface and a second surface that opposes the first surface, a second wiring formed on the first surface, a third wiring formed on the second surface, a fourth wiring and a fifth wiring that pass through the substrate and electrically couples the second wiring with the third wiring, and an electrode provided on the second wiring and electrically couples the second wiring with the first wiring, and the electrode is positioned between a first coupling point at which the fourth wiring is electrically coupled to the second wiring and a second coupling point at which the fifth wiring is electrically coupled to the second wiring, in the second wiring.
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公开(公告)号：US20180264830A1
公开(公告)日：2018-09-20
申请号：US15913255
申请日：2018-03-06
发明人： Shingo TOMIMATSU
CPC分类号： B41J2/04581 , B41J2/14233 , B41J2002/14306
摘要： A liquid ejection head, which includes a driving element that changes pressure in a pressure chamber and causes a liquid to be ejected from a nozzle, an individual channel that communicates with the pressure chamber, and a liquid reservoir that supplies via the individual channel the liquid introduced from an inlet to the pressure chamber. The liquid reservoir includes a first reservoir disposed on the inlet side, a second reservoir disposed on the individual channel side, and an intermediate reservoir that communicates with the first reservoir and the second reservoir. At least a part of the first reservoir overlaps the second reservoir when seen in plan view. A first compliance substrate is provided in the first reservoir on the second reservoir side on the side opposite to the inlet. A second compliance substrate is provided in the second reservoir on the side opposite to the first reservoir.
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公开(公告)号：US20160221338A1
公开(公告)日：2016-08-04
申请号：US14966909
申请日：2015-12-11
IPC分类号： B41J2/14
CPC分类号： B41J2/14274 , B41J2/14233 , B41J2002/14241 , B41J2002/14362 , B41J2202/11
摘要： A liquid ejecting head includes a plurality of stacked substrates that include a nozzle substrate having a nozzle from which liquid is ejected. A channel is formed in at least a part of the substrates and guides the liquid to the nozzle. The channel includes: a first channel that extends in an X direction intersecting a stacking direction in which the substrates are stacked; a curved section curved in a Z direction that intersects the X direction and contains a component of the stacking direction; and a second channel that extends from the curved section in the Z direction. A wall is formed in a corner portion inside the channel so as to intersect both the X and Z directions, and the corner portion is formed in the curved section between the inside walls of the first and second channels.
摘要翻译： 液体喷射头包括多个堆叠的基板，其包括具有喷射液体的喷嘴的喷嘴基板。 在至少一部分基板上形成通道，并将液体引导到喷嘴。 所述通道包括：第一通道，其沿X方向延伸，所述第一通道与层叠方向相交，在堆叠方向上堆叠所述基板; 与X方向交叉并且包含层叠方向的成分的与Z方向弯曲的弯曲部; 以及从Z方向上的弯曲部延伸的第二通道。 在通道内的角部形成有与X轴方向和Z方向交叉的角部，并且角部形成在第一通道和第二通道的内壁之间的弯曲部分中。
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公开(公告)号：US20230321980A1
公开(公告)日：2023-10-12
申请号：US18191665
申请日：2023-03-28
发明人： Shingo TOMIMATSU
IPC分类号： B41J2/145
CPC分类号： B41J2/145
摘要： A liquid ejecting head includes a first-positioning-portion into which a first-positioning-pin of a support body is inserted. When a virtual cylinder inserted to a deepest position of the first-positioning-portion and having a maximum cross-sectional area when viewed in a first-direction which is a depth direction of the first-positioning-portion is defined as a first-virtual-cylinder, a side surface of the first-virtual-cylinder includes a first-region, a second-region, and a third-region disposed between the first-region and the second-region. The first-region contacts with the first-positioning-portion on a first-side which is one side in a second-direction orthogonal to the first-direction, and does not contact with the first-positioning-portion on a second-side which is the other side in the second-direction. The second-region does not contact with the first-positioning-portion on the first-side, and contacts with the first-positioning-portion on the second-side. The third-region does not contact with the first-positioning-portion on both the first-side and the second-side.
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公开(公告)号：US20220371338A1
公开(公告)日：2022-11-24
申请号：US17663796
申请日：2022-05-17
发明人： Haruhisa UEZAWA , Hiroki KOBAYASHI , Katsuhiro OKUBO , Kentaro MURAKAMI , Takahiro KANEGAE , Shingo TOMIMATSU
IPC分类号： B41J11/00
摘要： A liquid ejecting head includes: a plurality of head chips having nozzles; a holder holding the plurality of head chips; and a planar heater disposed on the holder and heating the holder, in which the heater includes an outer peripheral region along an outer edge of the holder and a middle region positioned inside the outer peripheral region in a plan view, and a heat generation amount per unit time of the outer peripheral region is larger than a heat generation amount per unit time of the middle region.
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公开(公告)号：US20180264816A1
公开(公告)日：2018-09-20
申请号：US15913119
申请日：2018-03-06
IPC分类号： B41J2/14
CPC分类号： B41J2/14233 , B41J2002/14241 , B41J2002/14266 , B41J2002/14419 , B41J2002/14491
摘要： A liquid ejecting head includes a liquid ejection unit, a flexible substrate, and a case member. The liquid ejection unit includes a drive element, a pressure chamber, and a nozzle. The flexible substrate is electrically connected to the drive element. The case member includes a flow channel configured to supply the liquid to the pressure chamber and an opening portion through which the flexible substrate is inserted. The flexible substrate has a straight portion and a wide portion having a width more than that of the straight portion. The case member has a side wall surrounding the opening portion, and a cutout portion formed in the side wall and configured to release the opening portion outward from the side wall. Portions of the side wall across the cutout portion are positioned outside the straight portion of the flexible substrate disposed in the opening portion.
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