Canon Kabushiki Kaisha

Noriyasu Nagai

Seiichiro Karita

Shingo Okushima

Takatsuna Aoki

Akira Yamamoto

Kazuhiro Yamada

Shuzo Iwanaga

Zentaro Tamenaga

Yumi Komamiya

Tatsurou Mori

Akio Saito

Kenta Udagawa

Eisuke Nishitani

Yoshiyuki Nakagawa

Hiroki Hayashi

Hiroshi Koshikawa

Manabu Ohara

Shoki Takiguchi

Ryoji Inoue

Soji Kondo

Kyosuke Nagaoka

Naozumi Nabeshima

Koichi Kubo

Takuya Iwano

Kazuya Yoshii

Yukuo Yamaguchi

Ryo Kasai

Toshiaki Hirosawa

Hiromasa Amma

Hideaki Matsumura

Taiji Maruyama

Takayuki Tanno

Toru Nakakubo

Takuro Yamazaki

Akihisa Shiozaki

Masafumi Morisue

Yasuo Kotaki

Tetsuya Ohashi

Takashi Fukushima

Takeho Miyashita

Genji Inada

Tamaki Sato

Takeshi Murase

Masashi Hayashi

Takuto Moriguchi

Hironori Murakami

Masao Furukawa

Tetsushi Ishikawa

Manabu Otsuka

Yasuaki Tominaga

Yuki Sawai

Hitomi Ogasawara

Asuka Horie

Takashi Fukishima

A liquid ejection apparatus includes: an ejection head; a liquid reservoir; and a pressure control mechanism controlling a pressure of liquid supplied from the liquid reservoir and supplying the ejection head with liquid, the pressure control mechanism including a pressure chamber with the ejection head, a lever member connected to the valve element at a load and connectable to a pressure receiving member for a pressure of the pressure chamber at an effort, and a biasing mechanism biasing the valve element at the load of the lever member, the pressure control mechanism controlling a pressure of the pressure chamber. In the pressure control mechanism, a lever ratio, which is a ratio of a distance between the effort and fulcrum of the lever member to a distance between the load and fulcrum of the lever member, is greater than 1 and less than 5.

Liquid ejection apparatus and head unit

A liquid ejection head includes an ejection opening; a passage in which an energy generation element is disposed; an ejection opening portion that allows communication between the ejection opening and the passage; a supply passage for allowing the liquid to flow into the passage; and an outflow passage for allowing the liquid to flow out to the outside. An expression of H×P×W>1.7 is satisfied when a height of the passage is set to H [μm], a length of the ejection opening portion is set to P [μm], and a length of the ejection opening portion is set to W [μm].

Liquid ejection head, liquid ejection apparatus, and method of supplying liquid

A liquid storage container includes: a discharge port member including a discharge port through which liquid stored in a storage portion is discharged and a coupling portion in which a male thread portion is arranged on the outside; and a cover portion including a female thread portion on the inside and configured to be attachable to the discharge port member, the female thread portion configured to be screwed to the male thread portion, in which the male thread portion is discontinuous in the coupling portion.

Liquid storage container

A liquid storage container includes: a discharge port member including a discharge port through which liquid stored in a storage portion is discharged; a cover portion configured to be attachable to the discharge port member and to be capable of opening and closing the discharge port; and a sealing portion formed of a contact portion between the cover portion and the discharge port member. The cover portion includes a groove structure between an outer periphery of the cover portion and the sealing portion.

A liquid ejection head includes an ejection opening; a passage in which an energy generation element is disposed; an ejection opening portion that allows communication between the ejection opening and the passage; a supply passage for allowing the liquid to flow into the passage; and an outflow passage for allowing the liquid to flow out to the outside. An expression of H&#xd7;P&#xd7;W&#x3e;is satisfied when a height of the passage is set to H [&#x3bc;m], a length of the ejection opening portion is set to P [&#x3bc;m], and a length of the ejection opening portion is set to W [&#x3bc;m].

Ink bottle for refilling printer cartridges

A liquid storage container includes: a discharge port member including a discharge port through which liquid stored in a storage portion is discharged; a cover portion configured to be attachable to and detachable from the discharge port member and to be capable of opening and closing the discharge port; a liquid stop valve provided inside the discharge port member; and a protrusion provided inside the cover portion and configured to open the liquid stop valve in closing the cover portion. In the liquid storage container, the storage portion is sealable by at least one of a first sealing portion formed of a contact portion between the cover portion and the discharge port member and a second sealing portion formed of the liquid stop valve, and the first sealing portion and the second sealing portion are configured to be simultaneously unsealed.

An ink cartridge adapter or ink cartridge includes a casing; and a plurality of pad electrodes mounted on the casing so as to be movable in a direction outwardly away from a side surface of the casing.

Ink cartridge adaptor, ink cartridge and recording apparatus

A liquid storage bottle includes a bottle body having a resin-made first cylindrical part at one end, the first cylindrical part having an opening at its front end, and a tubular nozzle for pouring out the liquid contained in the inside of the bottle body by way of the opening, the tubular nozzle having a resin-made second cylindrical part bonded to the bottle body. The inner peripheral surface of the second cylindrical part is welded to the outer peripheral surface of the first cylindrical part. The outer peripheral surface of the first cylindrical part is provided with an annular groove extending in the circumferential direction and the annular groove is made to contain a part of the resin that is molten during the bonding operation.

Liquid storage bottle and method of manufacturing the same

A liquid storage bottle includes a bottle main body having a first cylindrical portion formed of a resin and a nozzle and has a second cylindrical portion formed of a resin and welded to the first cylindrical portion on an outer peripheral side of the first cylindrical portion. The first cylindrical portion includes an outer peripheral surface and a first annular surface extending radially outward from an axial end portion of the outer peripheral surface, the second cylindrical portion includes an inner peripheral surface facing the outer peripheral surface of the first cylindrical portion and a second annular surface which extends radially outward from an axial end portion of the inner peripheral surface and faces the first annular surface of the first cylindrical portion, and a peripheral wall portion extending in an axial direction is formed radially outside the second annular surfaces.

Liquid storage bottle and method for manufacturing the same

Provided is a liquid ejection head comprising: an ejection opening row along a first direction; a pressure chamber with print-element; a passage communicating with the pressure chamber; a supply opening row along the first direction with supply openings extending in a second direction to supply liquid to the passage; a collection opening row along the first direction with collection openings extending in the second direction to collect a liquid from the passage; a first common supply passage along the first direction to supply a liquid to the supply opening row; a first common collection passage along the first direction to collect a liquid from the collection opening row; a first supply side communication opening extending in the second direction to supply a liquid to the first common supply passage; and a first collection side communication opening extending in the second direction to collect a liquid from the first common collection passage, wherein at least one of the first supply side communication opening and the first collection side communication opening is provided at a plurality of positions.

Liquid ejection head and liquid ejection apparatus

Cap for ink bottle for refilling printer cartridges

Nozzle for ink bottle for refilling printer cartridges

Growing community of inventors

Tokyo, Japan

Noriyasu Nagai