Canon Kabushiki Kaisha

Kenji Aono

Yoshifumi Hattori

Kenji Kawano

Hideo Saikawa

Koichi Tanno

Masashi Kitani

Masami Kojima

Etsurou Suzuki

Akihiko Shimomura

Hiromitsu Hirabayashi

Akira Nagashima

Makoto Aoki

Shinichi Tochihara

Kumiko Mafune

Osamu Nishiwaki

Yoshio Uchikata

Tadashi Hanabusa

Tetsuyo Ohashi

Toshihiko Bekki

Toshihide Wada

Yoji Ara

Masaharu Ikado

Shigeo Toganoh

Kunihiko Maeoka

Hiroshi Tajika

Noribumi Koitabashi

Naoji Otsuka

Hitoshi Sugimoto

Masanori Takenouchi

Atsushi Arai

Kazuaki Masuda

Masahiko Higuma

Toshiaki Hirosawa

Masashi Miyagawa

Yoichi Taneya

Shoji Shiba

Isao Imamura

Minoru Nozawa

Kazuyoshi Takahashi

Tokihide Ebata

Etsuro Suzuki

A method is provided for producing an ink jet recording head comprising a discharge opening for discharging an ink, a discharge opening forming member for forming the discharge opening, a liquid flow path communicating with the discharge opening, and a liquid discharge energy generating portion arranged within the liquid flow path for generating an energy to be utilized for discharging the ink from the discharge opening. The discharge opening forming member is dipped into a liquid which has ink-repellence and permeates into the discharge opening forming member. As a result, an ink-repellent treatment is effected on a peripheral portion of the discharge opening.

Method for producing ink jet recording head and ink jet recording head produced by same

A method for producing an ink jet recording head comprising the following steps, a step which forms the photosensitive water-repellent processing layer in the ink discharge port face, a step which irradiates light onto the water-repellent forming region and hydrophilic forming region in the water-repellent processing layer, to cure the layer, a step which irradiates light selectively onto the hydrophilic forming region to reduce water repellency of the water-repellent processing layer and to impart hydrophilicity to the hydrophilic forming region, and a step which forms an opening, which constitutes part of the ink discharge port, in the water-repellent processing layer.

Method for producing ink jet recording head, and ink jet recording head produced by the same method

An ink jet recording apparatus comprises an ink tank containing ink; a recording head for performing recording by selectively ejecting ink; a mounting portion for mounting the ink tank and the recording head; a liquid passage coupling portion provided on either or both of the ink tank and the recording head for separating or connecting the ink passages in the ink tank and the recording head; a holding portion provided on either or both of the ink tank and recording head for guiding the ink tank to the recording head in order to hold them separably; and an electrically or mechanically connecting portion provided on either or both of the recording head and mounting portion for electrically or mechanically connecting the recording head to or separating it from the mounting portion.

Ink jet recording apparatus and a method for installing ink jet

A process for producing an ink jet head comprising a liquid-discharge energy generating element for discharging a liquid, a discharge opening, a liquid-flow path, and a substrate for holding the liquid-discharge energy generating element, the process comprises the steps of: preparing the substrate; providing on the substrate the liquid-discharge energy generating element; providing a solid layer with a convex shape on the surface of the substrate where the liquid-discharge energy generating element has been provided and at the part where the liquid-flow path and the discharge opening are to be provided, the solid layer being formed of a resin capable of being dissolved away; applying on the substrate provided with the solid layer a curable material in a thickness larger than the thickness of the solid layer, to cover the solid layer; curing the curable material; evenly removing the cured material until the convex portion of the solid layer is laid bare; and dissolving away the solid layer to form the liquid-flow path and the discharge opening.

Process for producing ink jet head

Ink jet head and ink jet apparatus provided with said ink jet head

An ink jet head comprises parts for holding liquid ink, the parts being sealed with a moisture-curing sealant composed mainly of an organic high polymer compound having an alkoxysilane moiety represented by Formula (1) in the molecule thereof: ##STR1## where X is hydrogen, methyl, ethyl, propyl or halogen; R is methyl, ethyl or propyl; and n is 1, 2 or 3.

Ink jet head and ink jet apparatus employing the same

Replaceable ink tank

An ink jet recording apparatus includes a detachable ink cartridge for storage of the ink to be supplied to a recording head. A joint of an ink supply line in the ink jet recording apparatus to be coupled with an ink outlet portion of the ink cartridge for delivering the ink is loosely fitted to be slidable in a direction crosswise to an axis of the supply line toward a coupling position with the ink outlet portion.

Ink jet recording apparatus and ink cartridge mountable on said apparatus

Ink jet recording apparatus and method for releasably mounting ink jet

A fixater has a fixing unit for expediting the fixation of an image recorded on a recording medium, a conveying unit for conveying the recording medium and a coupling unit detachably mountable in the mounting section of a cassette for stacking the recording medium for the recording apparatus. The fixater is mountable in place of the cassette for stacking the recording medium.

Fixater and recording apparatus using the same

An ink jet cartridge has a recording head portion and an ink containing portion which are detachably mountable relative to each other. The recording head portion ejects ink to effect recording with the ink. The cartridge includes a first ink container, provided in the recording head portion, for containing the ink; a second ink container, provided in the ink containing portion, for containing the ink; and an ink communication tube for establishing ink communication between the first ink container and the second ink container, wherein the ink communication tube is not externally exposed. An ink jet recording apparatus includes a recording head for ejecting ink, an ink container detachably mountable to the recording head for containing the ink to be supplied to the recording head, a detecting device for detecting mounting of the ink container to the ink jet recording apparatus and a control device for controlling a recording operation of the ink jet recording apparatus in accordance with an output of the detecting device.

Ink jet recording apparatus and detachably mountable ink jet cartridge

A liquid storing container storing liquid, therein and having a supply port for supplying the liquid to the outside has flow rate control means having a slit adapted to be closed in a steady state and to be opened for predetermined differential pressure or greater and controlling the flow rate of the liquid supplied from the supply port to the outside, and pressure regulating means disposed more adjacent to the supply port than to the flow rate control means for regulating the pressure of the liquid more adjacent to the supply port than to the flow rate control means.

Liquid storing container, an ink jet head cartridge and an ink jet

An ink tank for storing ink to be supplied to a recording unit comprises a bag-like member arranged in an inner space of the ink tank and communicating with the atmosphere, which bag-like member has a volume variable from substantially zero to a volume substantially equal to that of the inner space of the ink tank. Ink is stored in a space defined between the ink tank and the bag-like member and a liquid path is formed in an inner wall surface of the ink tank.

Liquid container with bladder-like member and liquid path along an

An ink storage unit used in an ink jet recording apparatus for recording by ejecting ink comprises a plurality of ink storage chambers, a plurality of movable walls and a mechanism for holding each of the movable walls. Each of the ink storage chambers stores ink. Each of the movable walls is provided in the each ink storage chamber respectively so as to seal stored ink against air, and each movable wall can move according to a change of amount of ink in each ink storage chamber. The mechanism for holding the movable walls exerts a force opposed to a force which is exerted on the each movable wall according to the change of amount of ink, on each of the movable walls so as to make the pressure in each ink storage chamber an appropriate negative pressure.

Ink jet recording apparatus

An ink jet cartridge is composed integrally of a recording head and an ink tank, which are constructed in mutually separable manner, in order to enable repeated use of the recording head by replacement of the ink tank. In an ink supply part in the ink tank, an elastic partition wall is provided with a slit which is normally closed but is opened under a predetermined pressure difference. The slit is so designed as to generate an appropriate negative pressure on the recording head, thereby preventing ink leakage. Also a slit shielding valve member is provided to shield the slit at the abrupt inhaling action of the ink tank at the detaching of the ink tank, in order to prevent air intrusion into the ink tank.

Ink supply device with elastic valve for liquid supplying slit

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Kawasaki, Japan

Kenji Aono