Canon Kabushiki Kaisha

Ricoh Company, Ltd.

Yokogawa Electric Corporation

Nec Corporation

Other

Nippon Electric Co., Ltd.

Canon Aptex

Ricon Company, Ltd.

Yutaka Koizumi

Hiroki Tajima

Mikiya Umeyama

Kouichi Omata

Seiichiro Karita

Yukuo Yamaguchi

Akira Goto

Toshio Kashino

Jiro Moriyama

Toshiaki Hirosawa

Haruhiko Terai

Torachika Osada

Kiyomi Aono

Kimiyuki Hayasaki

Hidemi Kubota

Tsutomu Abe

Atsushi Saito

Takayuki Ono

Tsuyoshi Orikasa

Minoru Nozawa

Toshihiro Mori

Shuji Koyama

Mineo Kaneko

Masaki Inaba

Masaru Iketani

Akihiro Yamanaka

Yoshihiro Sakai

Yasushi Iijima

Hiroyuki Maeda

Tamaki Kaneko

Yasuhiro Tabata

Toyokazu Satomi

Hideya Furuta

Kiyomitsu Kudo

Hiroshi Sugitani

Nobuyuki Hatasa

Masami Ikeda

Tetsuya Ohashi

Takeshi Okazaki

Shin Ishimatsu

Hideaki Kishida

Hiroyuki Kigami

Kenji Kitabatake

Hideo Fukazawa

Masami Kasamoto

Itaru Watanabe

Yutaka Ono

Yasutomo Watanabe

Yoshiyuki Imanaka

Manabu Inoue

Masahiko Kubota

Hiroki Hayashi

Hiromichi Noguchi

Nobuyuki Watanabe

Tadayoshi Inamoto

Tatsuo Furukawa

Kazunori Bannai

Yasuhiro Sawada

Makiko Kimura

Masaaki Izumida

Hiroyuki Fukushima

Haruhiko Moriguchi

Katsuo Sakai

Yuichiro Akama

Seiichi Miyakawa

Yuji Kamiyama

Hiroyuki Maru

Satoshi Shimazu

Yoshie Nakata

Akira Katayama

Takeshi Kono

Hiroyuki Ishinaga

Takeshi Yamaguchi

Shoji Koike

Sadayuki Sugama

Takashi Watanabe

Yasushi Miura

Nobuyuki Yanagawa

Satoshi Kimura

Aya Yoshihira

Hisashi Fukushima

Hidetoshi Yano

Shigeru Suzuki

Noriyuki Kimura

Toru Yamane

Daisaku Ide

Yoshie Asakawa

Yasushi Murayama

Koji Sakamoto

Junichiro Iri

Mitsuru Kurata

Hiroto Matsuda

Haruyuki Matsumoto

Masami Izumizaki

Masayuki Hayashi

Kenji Hashimoto

Chikara Imai

Kazushige Taguchi

Koji Yamakawa

Misao Tanzawa

A capping unit is detachably mountable to an ink jet recording head. The ink jet recording head has an ejection outlet surface provided with ejection outlets for ejecting ink. The capping unit includes: a liquid-absorbing member provided with a projection contactable to a periphery of an area, in which the ejection outlets are formed, on the ejection outlet surface so as to form a gap between the area and the liquid-absorbing chamber; and a capping member including an engaging portion and an elastic portion for contacting a rear surface opposite from a surface on which the projection of said liquid-absorbing member is formed to press said liquid-absorbing member against the ejection outlet surface.

Capping unit for ink jet recording unit

A recording head includes a plurality of nozzle arrays separately provided so as to correspond to kinds of recording liquids to be discharged, a plurality of common liquid chambers from which the recording liquids are supplied to the nozzle arrays, a plurality of recording-liquid introducing passages communicating with the common liquid chambers, and a plurality of filters provided in the recording-liquid introducing passages. Upstream aperture areas of the filters are equal to each other, and downstream aperture areas of the filters are different according to the kinds of recording liquids passing through the filters.

Liquid-ejecting recording head and liquid-ejecting recording apparatus

An ink jet recording apparatus configured to perform recording by discharging ink from a plurality of discharge ports disposed on a recording head. The apparatus includes a cap adapted to cover the plurality of discharge ports disposed on the recording head, a recessed portion defined on a bottom face inside the cap, a suction hole facilitating introducing a negative pressure to the recessed portion, an atmosphere communication hole located outside a range of the recessed portion and communicating with atmosphere, an ink absorber mounted inside the cap to cover the recessed portion, and a suction pump connected to the suction hole and configured to generate a negative pressure. When the plurality of discharge ports is covered with the cap, a projection image obtained when the plurality of discharge ports is projected onto the bottom face exists within the range of the recessed portion.

Ink jet recording apparatus

In a flexible wiring board for use in, for example, a liquid discharge head, wires disposed on a substrate in parallel are covered with a film material. The flexible wiring board is bendable towards one of a front surface side and a back surface side of the substrate and includes a bending line. The bending line is formed by bending the flexible wiring board along a bending direction crossing a longitudinal direction of the wires. The bending line contains the wires. Both ends of the flexible wiring board in the bending direction are located on the bending line. A distance between one of the wires located closest to one end of the flexible wiring board and the one end is larger on the bending line than in another part of the flexible wiring board. Accordingly, even if the flexible wiring board is bent at a small bend radius, peeling does not easily occur between a base film and a cover film.

Flexible film wiring board and liquid discharge head

Ink tank for printer

A liquid discharge head includes recording liquid flow paths communicated with plural discharge ports, a flow path formation member, upstream of the recording liquid flow paths, on which a recording liquid supply passage is provided, a recording liquid storing member, upstream of the recording liquid supply passage, in which a common liquid chamber is provided, a plug member for supplying recording liquid from the outside into the common liquid chamber, and a porous member at the end portion of the flow path formation member to remove dust particles and the like in recording liquid supplied from the common liquid chamber to the recording liquid supply passage. The porous member is arranged above a bottom face of the common liquid chamber.

Liquid jet recording head and liquid jet recording apparatus

The present invention provides a storing structure for storing an ink jet head including a nozzle communicated with an opening for discharging liquid, a liquid storing portion for storing the liquid to be supplied to the nozzle and a liquid introduction portion for introducing the liquid into the liquid storing portion from exterior, wherein, in the ink jet head, air is housed in the liquid storing portion and the liquid is contained at least in the nozzle, and a cap unit including an elastic cap for covering an area of the opening and a liquid absorbing member disposed in the elastic cap is closely contacted with and attached, around the opening, to a face in which the opening is formed, and the liquid introduction portion is communicated with atmosphere at least when inner pressure of the liquid storing portion is increased, thereby maintaining a space within the cap unit to a wetting condition.

Ink jet head storing structure and liquid filling method

A liquid discharge recording head comprising a recording head main body provided with a plurality of liquid flow paths communicated with a plurality of discharge ports for discharging liquid, respectively, and energy generating means for generating energy utilized for discharging the liquid filled in the liquid flow paths from the discharge ports, and an orifice plate provided with a discharge port array having the plurality of discharge ports aligned in one straight line, and bonded to the front face of the recording head main body having openings of the plurality of discharge ports formed therefor, wherein the orifice plate is provided with the extended portion in the alignment direction of the discharge port array or in the direction orthogonal to the alignment direction, being extended more than the width of the front face of the recording head main body, and the extended portion is fixed to the adjacent face of the front face of the recording head main body.

Liquid discharge recording head, liquid discharge recording apparatus, and method for manufacturing liquid discharge head

A liquid discharge recording head is formed by bonding a recording unit, having plural recording elements for discharging recording liquid, with a recording liquid supply supporting member used for supplying recording liquid to the recording unit. The recording liquid supply supporting member is provided with at least one first snap fitting extending substantially in the same direction as the bonding direction of the recording liquid supply supporting member and the recording unit, and at least one second snap fitting extending in a direction intersecting the extended direction of the first snap fitting. The recording unit is provided with at least one first receiving portion engaging with the first engaging portion formed for the first snap fitting, and at least one second receiving portion engaging with the second engaging portion formed for the second snap fitting.

Liquid discharge recording head

The present invention provides a storing structure for storing an ink jet head comprising a nozzle communicated with an opening for discharging liquid, a liquid storing portion for storing the liquid to be supplied to the nozzle, and a liquid introduction portion for introducing the liquid into the liquid storing portion from exterior, wherein, in the ink jet head, air is housed in the liquid storing portion and the liquid is contained at least in the nozzle, and a cap unit including an elastic cap for covering an area of the opening and a liquid absorbing member disposed in the elastic cap is closely contacted with and attached, around the opening, to a face in which the opening is formed, and the liquid introduction portion is communicated with atmosphere at least when inner pressure of the liquid storing portion is increased, thereby maintaining a space within the cap unit to a wetting condition.

A liquid jet recording head includes a recording portion having a recording element substrate provided with a recording element for discharging liquid and a face surface provided with a discharge port for discharging liquid, a recording liquid storing portion for storing the recording liquid supplied to the recording portion, and a coupling member for coupling the recording portion and the recording liquid storing portion. A projecting member is provided on the recording liquid storing portion. The coupling member couples the recording portion and the recording liquid storing portion so that a leading end of the projecting member projects toward an end of the face surface from a side of the recording portion when the recording portion is coupled with the recording liquid storing portion.

Liquid jet recording head and recording apparatus

In the liquid discharge recording head provided with a stopper member formed of an elastic member to be penetrated by a hollow needle member for liquid supply into a liquid preserving chamber in the recording head, the invention enables smooth insertion of the front end of the needle member into the stopper member without insertion failure. The liquid discharge recording head is provided with a head chip having a nozzle for discharging liquid, and a frame member connected thereto and having a liquid chamber for containing the liquid to be supplied thereto. A hole portion is formed in a portion of the frame member, and joint rubber is pressed into such hole portion. In the joint rubber, there is formed in advance a fissure hole, to be penetrated by a hollow needle provided in the main body of the liquid discharge recording apparatus and having fissures in not less than three directions from the crossing center of the fissures, in a plane perpendicular to the direction of depth of the hole portion.

Liquid discharge recording head, liquid discharge recording apparatus, and method for producing stopper member for liquid discharge recording head

A common recess, grooves, and common recess and/or column members in the grooves are formed on a base board at the same time, and such board is made a second base board, which is coupled to a first base board on which elements for liquid discharging energy are formed; hence obtaining an ink jet recording head provided with a filter unit in an arbitrary position in the region formed by the ink paths and the common liquid chamber. The filter unit can be processed by a single processing in the ink paths and/or the common liquid chamber to make it possible to prevent disabled discharge from taking place due to dust particles intermingled at the time of head manufacture. In this way, the discharging stability is enhanced, making a high-speed printing possible. A workpiece is efficiently processed by a single processing which is performed to process a three-dimensional configuration with respect to the direction in which the laser beam is irradiated.

Laser process for making a filter for an ink jet

A cartridge is detachably mountable to a holder of an ink jet recording apparatus, so as to be freely reciprocatable to scan across a recording medium and record thereon by discharging ink. The cartridge is defined by a cartridge main body, and is provided with a recording head for discharging ink from plural nozzles formed in parallel on a lower face of the cartridge main body facing the recording medium. A front face of the cartridge main body is provided with an electrical connection portion having cartridge electrodes, which are electrically connectable with corresponding electrodes of the holder. A rear face opposite to the front face is provided with an ink connection portion connectable to corresponding supply ports which supply ink to the recording head from a main tank installed elsewhere on the ink jet recording apparatus. With the cartridge thus structured, the force exerted for connection to the supply port does not affect the precision with which the cartridge is mounted on the holder.

Cartridge with opposed electrical and ink connection portions, and carriage and ink jet recording apparatus for same

Growing community of inventors

Kanagawa, Japan

Yutaka Koizumi