Seiko Epson Corporation

Yoshinao Miyata

Yutaka Furuhata

Yuma Fukuzawa

Masato Shimada

Shunsuke Watanabe

Hiroaki Okui

Shinri Sakai

Satoshi Oguchi

Fujio Akahane

Tsutomu Hashizume

Yue Gao

Atsushi Kobayashi

Taku Ishizawa

Tsutomu Nishiwaki

Hiroshige Owaki

Katsumi Enomoto

Tetsushi Takahashi

Tadahiro Mizutani

Motoki Takabe

Eiju Hirai

Tomoaki Takahashi

Shun Oya

Shiro Yazaki

Hiroyuki Kamei

Kazutoshi Goto

Noriaki Okazawa

Yoichi Naganuma

Akihisa Wanibe

Akira Matsuzawa

Toshinao Shinbo

Souichi Moriya

Toshiaki Kori

Tetsuya Akasu

Hisashi Akachi

Koji Sumi

Chikara Kojima

Koji Ohashi

Hiroyuki Kawate

Satoshi Nakajima

Hajime Mizutani

Kazushige Umetsu

Soichi Moriya

Yutaka Yamazaki

Wataru Takahashi

Yoshikatsu Yamamoto

Toshio Narita

Kenichi Kitamura

Kazuhiko Fujimori

A liquid ejecting apparatus includes a head unit capable of ejecting a liquid from a nozzle provided in a nozzle surface of a nozzle plate, an anchoring plate in which the head unit is anchored and that is provided with an opening region that exposes the nozzle surface, and a wiper member that wipes an anchoring plate exposed-surface located on the opposite side of the head unit of the anchoring plate and the nozzle surface. When an angle of contact between the nozzle surface and the liquid is taken as &#x3b8;n, an angle of contact between the anchoring plate exposed-surface and the liquid is taken as &#x3b8;s, and an angle of contact between the wiper member and the liquid is taken as &#x3b8;w, the relationship &#x3b8;n&#x3e;&#x3b8;s&#x3e;&#x3b8;w&#x3e;90&#xb0; is fulfilled.

Liquid ejecting apparatus

A liquid ejecting head includes: a nozzle plate provided with nozzle openings; an actuator unit including a flow channel formation substrate in which pressure generation chambers are provided and piezoelectric actuators that cause a change in the pressure of the liquid within respective pressure generation chambers; a communication substrate in which communication channels that communicate between the pressure generation chambers and corresponding nozzle openings are provided; a first case member that is a frame member affixed to the communication substrate so that the actuator unit is disposed within the first case member and that, along with the actuator unit, forms a manifold that holds the liquid to be supplied to the pressure generation chambers; and a second case member that is affixed to the first case member and in which is formed an introduction channel that sends the liquid from the exterior to the manifold.

Liquid ejecting head and liquid ejecting apparatus

Provided is a liquid ejecting apparatus capable of suppressing ink from remaining on a nozzle surface. A liquid ejecting apparatus includes a head unitcapable of ejecting a liquid from a nozzleprovided in a nozzle surfaceof a nozzle plate, an anchoring platein which the head unitis anchored and that is provided with an opening regionthat exposes the nozzle surface, and a wiper memberthat wipes an anchoring plate exposed-surfacelocated on the opposite side of the head unitof the anchoring plateand the nozzle surface. When an angle of contact between the nozzle surfaceand the liquid is taken as &#x3b8;n, an angle of contact between the anchoring plate exposed-surfaceand the liquid is taken as &#x3b8;s, and an angle of contact between the wiper memberand the liquid is taken as &#x3b8;w, the relationship &#x3b8;n&#x3e;&#x3b8;s&#x3e;&#x3b8;w&#x3e;90&#xb0; is fulfilled.

A liquid ejecting head comprises a unit head bonded to a communication substrate. Liquid chamber forming portions are formed in the unit case, along a first direction at positions that are separated by a partition wall. Empty liquid chamber portions and supply-side communication paths are formed in the communication substrate. The supply-side communication paths include a common communication path formed in an opposite side with a thin thickness portion left in the surface side of the communication substrate, and individual communication paths. With a surface of the partition wall and a surface of the thin thickness portion bonded together, the empty liquid chamber forming portions and the empty liquid chamber portions communicate with each other so as to define common liquid chambers.

A cartridgehas liquid supply portsandformed on a bottom wallof a casingand configured to be in contact with corresponding liquid introducing partsandof a carriage. An engagement partis provided on a mounting structureand extends out from a second end wall surface portionof a first end wallintersecting with bottom wall. The engagement part is configured to engage the carriage. In a plan view of bottom wallof cartridgein a first direction toward bottom wall, the distance between a second end walland a first end wall surface portionof first end wallis set to be greater than the distance between the second end walland the second end wall surface portion

Liquid supply unit having an engagement structure for engaging a liquid engagement device

Provided is an ultrasonic sensor including a piezoelectric elements arranged along a first direction and a second direction on a vibration plate, an insulation layer, and conductive lines. Each piezoelectric element including a first electrode, a piezoelectric layer, and a second electrode. The first electrode is partially removed in a regions between the piezoelectric elements. The second electrode is a separate electrode provided for each piezoelectric element. The insulation layer covers the second electrodes and has holes through which portions at opposite ends of the second electrodes along the first direction are partially exposed. Each conductive line is provided between adjacent ones of the second electrodes along the first direction and electrically connects, via the holes, the adjacent ones of the second electrodes.

Ultrasonic sensor and method for producing the same

Provided is a liquid ejecting head including a pressure chamber forming substrate for forming a pressure chamber which is filled with liquid, a nozzle through which the ink is ejected in a direction along the pressure chamber forming substrate, and a communication flow path which allows the pressure chamber to communicate with the nozzle. The nozzle and the communication flow path are formed in the pressure chamber forming substrate.

A cartridgehas liquid supply portsandformed on a bottom wallof a casingand configured to be in contact with corresponding liquid introducing partsandof a carriage, and a circuit substrateprovided on a second wall surface portionof a first end wallintersecting with the bottom walland configured to be in electrically contact with an electrode assemblyof the carriage. In a plan view of the bottom wallof the cartridgein a first direction toward the bottom wall, the distance between a second end walland a first wall surface portionof the first end wallis set to be greater than the distance between the second end walland the second wall surface portion

Liquid supply unit having an inclined structure for mounting an electrical contact

A liquid ejecting head includes a pressure chamber forming substrate that forms a pressure chamber filled with ink, a nozzle that ejects the ink in a Z direction along the pressure chamber forming substrate, and a communicating flow path that allows the pressure chamber to communicate with the nozzle, in which the communicating flow path includes a first flow path along a Y direction intersecting the Z direction.

A liquid ejecting head includes a plurality of pressure generators each including a first electrode individually provided therefor, the first electrode being located on a face of the flow path plate so as to correspond to one of the pressure chambers, a piezoelectric layer provided on the first electrode, and a second electrode provided on the piezoelectric layer; a lead electrode electrically connected to the first electrode; and a conductive layer provided in a section where the first electrode is partially exposed, the section being located in a region where the second electrode is not provided and the piezoelectric layer is exposed, at least a part of the conductive layer being in contact with the first electrode. The lead electrode is connected to the first electrode via the conductive layer.

Growing community of inventors

Nagano-ken, Japan

Yoshinao Miyata