Seiko Epson Corporation

Other

Fujio Akahane

Satoshi Shinada

Minoru Usui

Hiroaki Okui

Takao Kobayashi

Ryoji Uesugi

Nagamitsu Takashima

Makoto Matsuzaki

Kazushige Hakeda

Yasuyuki Kudo

Akiharu Kurebayashi

Isamu Togashi

Shunsuke Watanabe

Hisashi Miyazawa

Kohji Watanabe

Takeo Seino

Takahiro Katakura

Yoshinao Miyata

Tomoaki Takahashi

Yuma Fukuzawa

Katsumi Enomoto

Satoshi Oguchi

Toyohiko Mitsuzawa

Shinri Sakai

Akira Matsuzawa

Tomoaki Abe

Yasunori Koike

Norihiko Kurashima

Yoshio Miyazawa

Yoshikatsu Yamamoto

Yukihisa Takeuchi

Toshio Kumagai

Hiroshige Owaki

Katsuhiro Okubo

Nobuo Takahashi

Noriaki Okazawa

Satoru Hosono

Ryoichi Tanaka

Shuichi Tanaka

Kazuhiko Hara

Yoshinori Miyazawa

Satoshi Fujioka

Shinji Yasukawa

Toshiki Usui

Masanori Yoshida

Takayuki Ishii

Masanao Matsuzawa

Tatsuya Seshimo

Koji Morikoshi

Takayuki Iijima

Taiki Hanagami

Ryota Kinoshita

Hideaki Sonehara

Susumu Murayama

Osamu Nakamura

Keiji Hara

Motonori Okumura

Kazumi Kamoi

Haruhiko Koto

Yuji Tanaka

Atsushi Nishizawa

Katsuhiko Iida

Makoto Otsuki

Takayuki Okuda

Hidenori Omae

Toshiaki Ohshima

Yasushi Kishida

Minori Usui

Makato Matsuzaki

Satoshi Shindada

Shiri Sakai

A flow path structure includes: a substrate that includes a first surface and a second surface on a side opposite to the first surface; a supply port formed on the first surface; a plurality of discharge ports formed on the second surface; grooves that are formed on the first surface so as to extend in an X direction and communicate with the supply ports and with the plurality of discharge ports via through-holes formed on the substrate; and a sealing portion that is disposed on the first surface and seals each groove.

Flow path structure, liquid ejecting head, and liquid ejecting apparatus

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 having a nozzle opening that serves for liquid ejection; a channel-forming substrate including pressure-generating chambers that are in communication with the nozzle opening; a pressure generator that serves to generate pressure change in a liquid in the pressure-generating chambers; and a communication plate provided between the nozzle plate and the channel-forming substrate, the communication plate having a communication channel that forms a communication between the pressure-generating chambers and the nozzle opening. The communication plate has a circulation channel that is in communication with a common liquid chamber through the communication channel, the common liquid chamber being in communication with a plurality of the pressure-generating chambers in common.

Liquid-ejecting head and liquid-ejecting apparatus

A valve for connecting a second-flow-channel, which supplies a liquid to a liquid-ejecting-head, with a first-flow-channel of the liquid-ejecting-head which ejects the liquid, includes a valve-casing, a first-connector that detachably connects the first-flow-channel, a second-connector that connects the second-flow-channel, a first-connection-port that communicates with the first-flow-channel which is connected with the first-connector, a second-connector that communicates with the second-flow-channel which is connected with the second-connector, and a valve-body in which a connecting-flow-channel is formed for connecting the first-connection-port and the second-connection-port, and that is moved inside the valve-casing to switch a connection state between the first-connection-port and the second-connection-port among a plurality of states. The plurality of states include a first state in which the first-connection-port and the second-connection-port communicate with each other via the connecting-flow-channel, and a second state in which the first-connection-port and the second-connection-port are disconnected.

Liquid supply valve, flow channel system, and method of using liquid supply valve

A filter unit provided in a path for supplying liquid to a liquid ejector includes: an upstream compartment into which the liquid flows from an upstream channel; a downstream compartment from which the liquid flows into a downstream channel; and a filter that serves as a partition between the upstream compartment and the downstream compartment. The upstream compartment overlaps the downstream compartment in a first direction intersecting the vertical direction. The downstream compartment has at least one first downstream opening and at least one second downstream opening in communication with the downstream channel. The second downstream opening is disposed below the first downstream opening in the vertical direction.

Liquid ejecting head and filter unit

A manufacturing method of a flow path member which includes a flow path between first and second members which are stacked together includes a first step of welding the first and second members to each other at a first welding portion in a state in which a pressure is applied in a stacking direction to the first and second members which are stacked to be in contact with each other, and a second step of welding the first and second members to each other in a state in which a greater pressure is applied in the stacking direction to the first and second members at a second welding portion of a different position from the first welding portion.

Manufacturing method of flow path member, flow path member, liquid discharging head, and liquid discharging 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.

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.

Liquid ejecting head, liquid ejecting apparatus, and manufacturing method of liquid ejecting head

A flow passage member is used in a liquid ejecting head including an ejecting unit. The ejecting unit communicates with a self-sealing unit which is a negative pressure generation mechanism. The flow passage member includes a flow passage internal pressure adjustment mechanism that adjusts a pressure inside a flow passage between the self-sealing unit and the ejecting unit by changing a volume of the flow passage on a way of the flow passage and a flow passage opening and closing mechanism that opens and closes the flow passage on a way of a flow passage between the self-sealing unit and the flow passage internal pressure adjustment mechanism.

Liquid ejecting head, liquid ejecting apparatus, flow passage member, and method of controlling liquid ejecting head

A liquid ejecting head includes: a substrate having pressure generating chambers; drive units configured to apply pressure vibration to the pressure generating chambers; and a head casing having first and second areas mutually exclusively disposed as viewed from the substrate, the first areas being disposed in a staggered arrangement as viewed from the substrate, the head casing storing the drive units in the first areas as viewed from the substrate, the head casing having recesses disposed in the second areas as viewed from the substrate.

A liquid ejecting head includes a plurality of liquid ejecting modules each of which includes a plurality of unit heads each configured to eject liquid from a plurality of nozzles, and a first fixing plate having a first surface where the plurality of unit heads are fixed; and a second fixing plate having a base portion fixed to a second surface of the first fixing plate of the plurality of liquid ejecting modules, the second surface located on the side opposite to the first surface, and the base portion overlapping a gap between the adjacent liquid ejecting modules.

Liquid ejecting head and liquid ejecting apparatus

Growing community of inventors

Nagano, Japan

Fujio Akahane