Seiko Epson Corporation

Yoichi Yamada

Masaru Kobashi

Takatomo Fukumoto

Masahiro Maeda

Daisuke Matsumoto

Tomohiro Aruga

Tomoe Aruga

Tahei Ishiwatari

Kiyoteru Katsuki

Hidenori Kin

Kazuhiro Ichikawa

Yoshihiro Nakashima

Yukio Takayama

Katsumi Okamoto

Yasunori Koike

Noboru Sakurai

Yoshiyuki Kurebayashi

Hiroshi Kato

Keiichi Taguchi

Narihiro Oki

Atsunori Kitazawa

Takayuki Shiraki

Isamu Togashi

Junichi Suzuki

Masanao Kunugi

Tatsuro Osawa

Shuji Sugawara

Ken Ikuma

Daisuke Ishihara

Mikio Furumizu

Takehiko Okamura

Takashi Hama

Yuichi Segawa

Takayuki Kawakami

Koji Migita

Yoshio Nakazawa

Satoru Miyamoto

Toshiya Okada

Junji Shirokoshi

Yasushige Hori

Mamoru Mizunokura

Fuyuto Yamashita

Junichi Nakahara

An information processing apparatus transmits printing data to a printing apparatus and includes: a beacon reception unit that receives a beacon signal including data amount information indicating an amount of data of a printing standby job accumulated in the printing apparatus from the printing apparatus; a distance measurement unit that measures a distance from the printing apparatus which is a transmission source of the beacon signal based on the beacon signal; and a selection unit that selects a printing apparatus which is a transmission destination of the printing data based on the distance and the data amount information of each printing apparatus.

Helping user select a printer in a multi-printer system to minimize printing time

A liquid spray device includes: a liquid spray head including a spray surface provided with a plurality of nozzles that spray liquid to a medium; a conveyance mechanism that includes an opposing surface opposite to the spray surface and conveys the medium in a first direction between the spray surface and the opposing surface; a plurality of protrusions protruding from the spray surface, and arranged in a second direction which is intersecting with the first direction; and a plurality of supports protruding from the opposing surface to support the medium being conveyed, and arranged in the second direction. The protrusions each have at least a part overlapping with a position other than a middle area between the supports adjacent to each other.

Liquid spray device

A manufacturing method of a liquid ejecting head includes providing a stepped region that is formed by half-blanking and has a height different from a plane surface region, and a protrusion that is formed by drawing within the stepped region and protrudes on a liquid ejection side in the plane surface region of a fixing plate defining a liquid ejection surface in which nozzles ejecting liquid are provided; and fixing the liquid ejection section having a flow path member in which a flow path supplying the liquid is provided on a side opposite to a side in which the protrusion protrudes to the flat plate.

Liquid ejecting head and manufacturing method thereof

A liquid ejecting head includes an ejection surface which extends in a first direction (X-direction) and on which a plurality of nozzles ejecting a liquid are distributed; and protrusion sections that are formed on the ejection surface and protrude on a liquid ejection side in which the liquid is ejected. The ejection surface has abutting regions on which a sealing body that seals the plurality of nozzles by surrounding the plurality of nozzles abuts. When projecting the abutting regions and the protrusion sections along a first direction (X-direction) on a virtual line along a second direction (Y-direction) intersecting the first direction, the protrusion sections are disposed on the ejection surface such that projection of the protrusion sections crosses a boundary of projection of the abutting regions.

Liquid ejecting head and liquid ejecting apparatus

An ink jet recording apparatus includes a printer head that ejects ink and a platen. The ink includes an organic solvent, a surfactant, and 60% by mass or less of water. The platen is composed of a material containing a conductive resin. A solubility parameter A [(J/cm)] calculated from the organic solvent and the surfactant and a solubility parameter B [(J/cm)] of the conductive resin satisfy |A&#x2212;B|&#x2267;2.

Ink jet recording apparatus and ink jet recording method

An ink composition is provided which has excellent initial filling characteristics and continuous printing stability even in the case of an ink composition (for example, dissolved nitrogen is equal to or greater than 5 ppm) which is almost not deaerated or an ink composition (for example, dissolved nitrogen is equal to or greater than 7 ppm) which is not deaerated at all. The ink composition includes an alkylene oxide adduct (A) of acetylenic glycol in which a main chain has 12 or more carbon atoms, acetylenic glycol (B) in which a main chain has 10 or more carbon atoms, and polyoxyalkylene alkyl ether (C).

Ink composition for ink jet recording, ink supply system, and ink jet recording apparatus

In the printer, after ink is discharged from nozzle openings by making a closed space area, formed by bringing a cap into contact with a recording head, enter into a negative pressure state due to negative pressure accumulated in a discharge flow path by driving a pump, when making the negative pressure state of the closed space area be subjected to a pressure change in a direction of coming to an atmospheric pressure state, after the air flows into the closed space area by making a second opening and closing valve provided at an inflow flow path which makes the closed space area and an aerial space communicate with each other be in an opened state, the inflow of the air into the closed space area through the inflow flow path is stopped in a state where negative pressure remains in the closed space area.

Cleaning method, cleaning apparatus, and liquid ejecting apparatus

A printer includes: a fluid ejecting head provided with multiple nozzles that eject ink; an ink supply tube that supplies the ink to the fluid ejecting head; and a pressure application mechanism that pressurizes the ink to swell from the nozzles by pressurizing the ink within the ink supply tube and then depressurizes the interior of the ink supply tube while the ink is swelling from the nozzles.

Fluid ejecting apparatus and cleaning method

A printer includes a fluid ejecting head having a plurality of nozzles, an ink supply channel and a maintenance device. The maintenance device includes a pressure regulating mechanism configured to reduce the pressures in the interiors of the ink supply channels at a position of pressure reduction, and a tight cap being brought into abutment with the fluid ejecting head so that the nozzle openings of the nozzles which receives a supply of ink through flow channels which are subject to relatively small pressure losses first by priority according to the magnitudes of the pressure losses in the respective flow channels extending from the position of pressure reduction to the respective nozzles.

Maintenance device, fluid ejecting apparatus and maintenance method

A method for cleaning a fluid ejecting apparatus is provided. The fluid ejecting apparatus includes a fluid ejecting head that has a plurality of nozzle openings through which fluid is ejected, a fluid supply passage through which the fluid is supplied toward the fluid ejecting head, an open/close valve that is provided on the fluid supply passage, and a pressure reduction mechanism that generates negative pressure in a space outside the nozzle openings. The cleaning method includes a valve-closing operation of putting the open/close valve into a closed state and a pressure reduction operation of generating negative pressure in the space by using the pressure reduction mechanism after the valve-closing operation to cause the fluid to bulge outward at the nozzle openings.

Cleaning method and fluid ejecting apparatus

In a liquid holding container configured so that a first liquid holding section in which a liquid outflow opening and an air intake opening are provided communicates with a second liquid holding section in which a liquid injection opening is provided, a divider member, capable of switching between a state in which the first liquid holding section and the second liquid holding section communicate and a state in which the stated sections are separated from each other in an airtight state, is provided in an area where the first liquid holding section and the second liquid holding section communicate with each other. If the first liquid holding section and the second liquid holding section are separated from each other in an airtight state, a negative pressure within the first liquid holding section can be maintained even if the injection opening is opened.

Liquid holding container and liquid consuming apparatus

There is provided a nozzle contact unit capable of realizing a contact state, where a contact surface comes into close contact with a nozzle formation surface to block a plurality of nozzle openings, and a separated state, where the contact surface is separated from the nozzle formation surface. The nozzle contact unit separates the contact surface from the nozzle formation surface to sequentially open the nozzle openings preferentially from the nozzle opening of the nozzle with a shorter flow passage length of ink flowing from a supply port to the nozzle via a common ink chamber among the plurality of nozzle openings in a procedure from the contact state to the separated state.

Ejection liquid dryness suppressing device, liquid ejecting apparatus, and ejection liquid dryness suppressing method

A liquid ejecting apparatus includes a platen disposed with a gap from a nozzle plate of a recording head and supporting a recording medium in ejecting, and an platen application voltage generating unit generating an electric field having a direction different from an electric field generated between an individual external electrode of a piezoelectric vibrator and nozzles, between the nozzle plate and the platen, in which the intensity of the electric field generated by the applied-to-plate voltage generating unit is set in between the maximum electric field intensity and the minimum electric field intensity between the individual external electrode and the nozzles.

Liquid ejecting apparatus

Growing community of inventors

Shiojiri, Japan

Yoichi Yamada