Seiko Epson Corporation

Other

The Inctec Inc.

Kazuhiko Hara

Minoru Usui

Hidehiko Komatsu

Masahiro Yatake

Takahiro Katakura

Kouichi Toba

Atsushi Kobayashi

Seiji Mochizuki

Takahiro Naka

Takao Kobayashi

Shigenori Fukasawa

Takayuki Kawakami

Toshihiro Shinbara

Yuji Tanaka

Hitotoshi Kimura

Hitoshi Ota

Shinri Sakai

Hitoshi Ohta

Hitoshi Hayakawa

Kazuyuki Fujioka

Yoshikatsu Yamamoto

Munehide Kanaya

Takeo Seino

Tomoaki Takahashi

Nobuhito Takahashi

Jun Ito

Yukihiro Hanaoka

Hiroshi Fukumoto

Kenji Tsukada

Hiroko Hayashi

Kazunaga Suzuki

Hironori Sato

Keiji Matsumoto

Nagamitsu Takashima

Shigeki Suzuki

Yasunori Koike

Takeshi Yoshida

Koji Harada

Motonori Okumura

Tsuyoshi Hayashi

Masanori Takemura

Kohji Watanabe

Ryo Oguchi

Takaichi Wada

Akira Takagi

Satoshi Shinada

Fujio Akahane

Masaru Takahashi

Kinya Ozawa

Noriaki Okazawa

Koichi Toba

Kiyoto Komuro

Yukio Sugita

Masahiro Isono

Toshiki Usui

Tomoaki Abe

Masahiko Sato

Hiroto Nakamura

Masaaki Itano

Fumie Yamazaki

Yukihiro Uchiyama

Norihiro Maruyama

Mitsuyoshi Tamura

Yoshio Miyazawa

Mitsuteru Yamada

Nagatoshi Kasahara

Motoki Masuda

Katsuhiro Komatsu

Fumitsugu Ito

Keiichi Noto

Kiyotaka Sema

Yasushi Kishida

Takashi Kozuchi

A liquid ejecting apparatus includes a liquid ejecting section that is capable of ejecting a first liquid from an opening of a nozzle with respect to media; and a two-fluid ejecting apparatus that is capable of ejecting at least one of a gas and a second liquid with respect to the liquid ejecting section.

Maintenance method of liquid ejecting apparatus

Liquid ejecting apparatus and maintenance method of liquid ejecting apparatus

A liquid ejecting head has a nozzle forming surface to which a nozzle section through which liquid is ejected is open, wherein an electrostatic propensity of the nozzle section due to contact with the liquid is lower than an electrostatic propensity of the nozzle forming surface due to contact with the liquid. The amount of fluorine per unit area in the nozzle section is smaller than the amount of fluorine per unit area in the nozzle forming surface.

Liquid ejecting head having nozzle with electrostatic propensity

A liquid ejecting apparatus includes a liquid ejecting head which ejects liquid from a nozzle that is disposed on a nozzle surface, and an absorption member which is able to contact the nozzle surface, in which it is possible to perform a first contact operation which causes the absorption member to contact the nozzle surface at a position which corresponds to a nozzle region that includes an opening region of the nozzle, and a second contact operation which causes the absorption member to contact the nozzle surface at a position which corresponds to a non-nozzle region that is a region outside of the nozzle region.

Liquid ejecting apparatus and cleaning device

A liquid ejecting apparatus includes a liquid ejecting unit having nozzles able to eject a first liquid to a medium; and a fluid ejecting device having ejection ports able to eject a fluid including a second liquid to the liquid ejecting unit, in which the fluid ejecting device performs, as a maintenance operation of the liquid ejecting unit, a first fluid ejection of ejecting a fluid including small droplets of the second liquid that are smaller than a nozzle opening to an opening region in which the nozzles of the liquid ejecting unit open, and a second fluid ejection of ejecting a fluid including droplets of the second liquid in which the smallest droplets are larger than the small droplets to the liquid ejecting unit.

Liquid ejecting apparatus

A liquid ejecting apparatus includes a liquid ejecting unit having nozzles able to eject a liquid to a medium; a maintenance unit which performs maintenance of the liquid ejecting unit using a maintenance liquid; and a heating section which heats the maintenance liquid used for maintenance.

A dummy head is attachable to and detachable from a carriage of a liquid ejecting apparatus including a first route having a supply port through which a liquid can be supplied to a liquid ejecting head in a state of being attached to the carriage, and a second route having a collection port through which the liquid can be collected from the liquid ejecting head. The dummy head has a third route which can be connected to the supply port and the collection port.

Dummy head and liquid ejecting apparatus

The liquid ejecting apparatus includes a cleaning member that is brought into contact with a region including a nozzle face of the liquid ejecting head that ejects a liquid from nozzles formed in the nozzle face such that the cleaning member is capable of cleaning the liquid ejecting head, the cleaning member having a pile section in which a plurality of pile elements are raised in a portion of the cleaning member in contact with the region of the liquid ejecting head.

Cleaning device for liquid ejecting head, and liquid ejecting apparatus with the same

An aqueous ink ensuring less blurring and high color formation on plain paper, satisfactory color formation and fixing property on special paper and excellent ejection stability is realized by using a microcapsule of a colorant encapsulated with a polymer and rendered dispersible in water and specifying the amount of the aromatic ring in the polymer to be from 20 to 70 wt % of the polymer.

Water-based ink, water-based ink set, and process for producing dispersion

The present invention provides an ink jet printer having storage for storing ink, a recording head including a nozzle for ejecting ink, and a passage between the storage and the recording head for conducting the ink. At least one of these components comprising an ink-contacting member that comprises an antioxidant of the following formula (1) of a concentration of 100 ppm or less: Further, an ink jet recording method using the ink jet printer causes such printer to eject droplets of an ink composition and attach the droplets to a recording medium.

Ink jet printer, ink jet recording method, and recorded matter

The present invention provides an ink jet printer having an ink-contacting member which is in contact with an ink until the ink is injected from a print head and which contains an antioxidant, wherein the ink-contacting member has a concentration of a compound represented by the following formula (1) of 100 ppm or less: Further, an ink jet recording method using the ink jet printer and recorded matter recorded by the ink jet recording method are also disclosed. According to the invention, there is provided an ink jet printer using an ink-contacting member which inhibits the formation of a crystalline molecular complex.

The invention provides an oil-based ink composition for ink jet recording, which is best suited for printing onto polyvinyl chloride substrates, and improved in terms of both the stabilities of ink on storage and jetting, and a method for inspecting the same. The oil-based ink composition for ink jet recording comprises as a main solvent at least a specific polyalkylene glycol dialkyl ether and containing at least a specific quinacridone pigment component. That composition should be such that when a measuring sample comprising it is analyzed by means of high speed liquid chromatography under specific measuring conditions, the concentration of a component having a peak at the holding time of 10.3 minutes is 0.4 ppm or less.

Oil-based ink composition for ink jet recording and method for inspecting it

The present invention provides an aqueous ink containing a dispersion in which a colorant is encapsulated with a polymer to make it dispersible in water, wherein the polymer has aromatic rings in an amount of from 20% by weight to 70% by weight based on the weight of the polymer, and further, the ink contains a compound represented by the following formula: wherein R represents a bivalent organic group, PO represents a propyleneoxy group, EO represents an ethyleneoxy group, x, y, a and b are each the number of repeating units, x represents a number of 1 to 200, y represents a number of 1 to 50, a represents a number of 1 to 30, and b represents a number of 0 to 20.

Aqueous ink

An ink tank cartridge for use in an ink jet recorder has a container having exterior walls, a porous member is stored in the container, an ink supply port that extends through one of the exterior walls of the body to supply ink to the exterior of the cartridge, and a packing member, disposed within the ink supply port and having an opening therethrough and a rib formed on a upper surface. A pressing member may be provided to bias the packing member against an inner surface of the ink supply port. The ink tank cartridge can be assembled to limit the occurrence of air bubbles in the tank.

Ink cartridge for ink-jet recorder and method of manufacturing same

Growing community of inventors

Nagano, Japan

Kazuhiko Hara