Brother Kogyo Kabushiki-kaisha

Atsushi Ito

Shohei Koide

Haruhisa Takayama

Masahiro Noda

Hiromitsu Mizutani

Yusuke Suzuki

Hisaki Sakurai

Koichiro Hara

Yasuo Okawa

Yasunori Kobayashi

Koji Imai

Masaaki Deguchi

Yuya Kato

Atsushi Hirota

Taisuke Mizuno

Tomoyuki Kubo

Yasuhiro Sekiguchi

Jun Isono

Hikaru Nakamoto

Mizuyo Takebayashi

Masashi Ono

Hiroaki Hiraide

Hiroto Sugahara

Hirotake Nakamura

Keita Sugiura

Yoshikazu Takahashi

Naoya Okazaki

Keita Hirai

Toru Kakiuchi

Kazuma Goto

Naoki Katayama

Masayuki Takata

Yasuo Kato

Kazuo Kobayashi

Narumi Koga

Seiji Shimizu

Keiji Kura

Shotaro Kanzaki

Yoshitsugu Morita

Yasuhiro Kato

Shin Hasegawa

Shigeru Suzuki

Masatomo Kojima

Satoshi Okuda

Yumiko Ohashi

Hitoshi Yoshida

Satoru Goto

Masaharu Ito

Takahiro Yamada

Toshihiro Kishigami

Yuji Miwa

Takashi Yoshikawa

Hiroo Ogawa

Kenichi Naruse

Kenji Matoba

Kazuaki Iwatsuki

Hiroyuki Tsujihara

Toshiya Matsuyama

Tsuyoshi Eguchi

Naohiko Tani

Hiroki Kusakabe

Seiko Kitahara

Masahiro Kouda

A liquid droplet ejecting apparatus includes: an ejecting head made of metal and having an ejection surface; an electrode which moves relative to the ejection surface; a voltage source generating a potential difference between the ejecting head and the electrode; an electric current detector detecting an electric current between the ejecting head and the electrode; and a controller. The controller is configured to: calculate a flying speed of the liquid droplet based on a first distance between the ejecting head and the electrode and a time during which the electric current flows between the ejecting head and the electrode; and calculate an ejection bending amount, based on a time after the liquid droplet is ejected from the ejecting head in a state that the ejection surface and the electrode are apart from each other by a second distance and until the liquid droplet lands on the electrode.

Liquid droplet ejecting apparatus

A liquid droplet ejecting apparatus, includes: an ejecting head which ejects liquid droplets; a light source which causes light to be radiated toward a flight space of the liquid droplets with a first output power or a second output power; a detecting element which detects received amount of the light radiated from the light source and passed through the liquid droplets flying in the flight space; and a controller. The controller causes the light to be radiated from the light source with the first or second output power at a timing of the ejecting head being driven to eject the liquid droplets; in a first detecting mode, executes a detection about an ejection failure of the nozzles based on the received amount of the light; and in a second detecting mode, executes a detection about a phenomenon causing the ejection failure based on the received amount of the light.

There is provided a printing apparatus including: a first head including first nozzles; a first irradiator including first light sources; and a controller. The first nozzles are arranged to constitute a nozzle row. The first light sources are arranged to constitute a light source row, and including an inner light source, and first and second outer light sources. The controller is configured to cause: the first head to execute a first discharging operation of discharging a clear ink to a printing medium; and the first irradiator to execute a first irradiating operation of irradiating the clear ink with a light. The controller is configured to make an intensity of the light, from each of the first and second outer light sources, with which the clear ink is irradiated smaller than an intensity of the light, from the inner light source, with which the clear ink is irradiated.

Printing apparatus and control method for printing apparatus

A liquid droplet discharge apparatus includes: a metallic discharge head configured to discharge a liquid droplet onto a print medium; an electrode arranged facing the discharge head; a voltage source configured to generate a potential difference between the discharge head and the electrode; a current detection part configured to detect a current flowing between the discharge head and the electrode; and a controller. The controller is configured to calculate a volume of the liquid droplet based on a current value detected by the current detection part, in a case that the liquid droplet is discharged from the discharge head in a state that the potential difference is generated between the discharge head and the electrode by the voltage source.

Liquid droplet discharge apparatus

A curing device includes a light emitting member, and a control device. The light emitting member has a light source configured to emit light to cure liquid on a printing medium. The light source and the printing medium are configured to be located with a gap therebetween. The gap is variable among a plurality of distances including a first distance and a second distance greater than the first distance. The control device is configured to perform: controlling the light source to emit light of an intensity based on the gap so that the intensity when the gap is the second distance is greater than when the gap is the first distance.

Curing device having light source to emit light to cure liquid on printing medium, and printing device including the curing device

A printing apparatus, including a discharging head, a relative movable assembly to move a printable medium and the discharging head relatively, and a lighting unit including a plurality of light sources to emit light for curing the ink, is provided. A part of the plurality of light sources is arranged in a first lighting area, and another part of the plurality of light sources is arranged in a second lighting area. A quantity of the light sources per unit area in the second lighting area is smaller than a quantity of the light sources per unit area in the first lighting area. A direct distance from the discharging head to the second lighting area in a direction parallel to the predetermined direction is shorter than a direct distance from the discharging head to the first lighting area.

Printing apparatus

There is provided a light irradiator including: light sources forming first and second light source rows; a heat sink; a substrate including first and second traces connected to the first and second light source rows, respectively; and a fixing part configured to fix the heat sink to the substrate. The fixing part is arranged between adjacent light sources included in the first light source row and adjacent in the first light source row; and the fixing part is not arranged between adjacent light sources included in the second light source row and adjacent in the second light source row. The first trace includes a first circumventing part configured to circumvent the fixing part; and the second trace includes a second circumventing part configured to circumvent the fixing part and having a directional component different from the first direction.

Light irradiator and liquid discharge apparatus

A printing apparatus includes a head which discharges liquid onto a printing medium; and a light irradiation unit which is aligned with the head in a first direction and which irradiates the liquid on the printing medium with light. The light irradiation unit has light source arrays arranged in the first direction, each of the light source arrays includes light sources aligned in a second direction, and the light source arrays include a first light source array which is disposed most closely to the head in the first direction. The light, which is radiated by each of the light sources included in the first light source array, has an intensity that is smaller than an intensity of the light which is radiated by each of the light sources included in the light source arrays different from the first light source array.

A printer includes a platen, a head, and an irradiation device. The platen is configured to support a printing object and to move the printing object in a first scanning direction. The head is configured to move in a second scanning direction relative to the printing object. The second scanning direction crosses the first scanning direction. The head ejects light-curable ink onto the printing object. The irradiation device is configured to move in the second scanning direction relative to the printing object. The irradiation device irradiates light onto the light-curable ink deposited on the printing object. The irradiation device includes a first light source configured to emit light having a first wavelength, and a second light source configured to emit light having a second wavelength different from the first wavelength. The first and second light sources are disposed on one side of the head in the second scanning direction.

Printer provided with irradiation device to irradiate printing object with light for curing ink deposited thereon

A recording apparatus includes a liquid ejection head having nozzles, a controller, and a signal input part through which a user inputs, to the controller, a setting signal indicating settings related to a grade of a barcode or two-dimensional code. The controller drives the liquid ejection head based on the setting signal input through the signal input part to cause the nozzles to eject liquid to record a barcode or two-dimensional code on a recording medium in the grade corresponding to the setting signal.

Recording apparatus

A printer includes: a head; a lamp; a condenser lens; a platen; and a lamp cover. The head is configured to eject a light-curable ink onto a printing object. The lamp is movable relative to the printing object in a main scanning direction, and is configured to emit light to irradiate the printing object. The condenser lens is configured to focus the light emitted from the lamp. The platen is configured to support the printing object and to move in a sub scanning direction relative to the head. The lamp cover has translucency, and includes one end portion and the other end portion in the sub scanning direction. Each of the one end portion and the other end portion has an adjustment part. The adjustment part is configured to adjust the light transmitted through the lamp cover by blocking part of the light or diffusing the light.

Printer provided with condenser lens that focuses light emitted for curing ink deposited on printing object

There is provided an ultraviolet ray irradiating apparatus configured to cure an ultraviolet-curable ink discharged to an object, by a discharging head which is configured to move in a main scanning direction, in a state that the ultraviolet ray irradiating apparatus is moved in the main scanning direction. The ultraviolet ray irradiating apparatus includes a plurality of light emitting chips configured to emit an ultraviolet ray, the plurality of light emitting chips being arranged side by side with a first pitch in the main scanning direction and being arranged side by side with a second pitch smaller than the first pitch in a sub scanning direction orthogonal to the main scanning direction.

Ultraviolet ray irradiating apparatus and image recording apparatus provided with the same

An image recording apparatus includes: a head which has nozzles configured to discharge a photocurable liquid that is curable by light toward a recording medium, the recording medium including a first base material and a second base material having a surface state different from a surface state of the first base material; a light irradiator which is configured to irradiate the light onto the photocurable liquid disposed on the recording medium; a movement mechanism which is configured to relatively move the recording medium, and the head and the light irradiator in a movement direction; and a controller configured to execute a recording process; an information acquiring process; an irradiation light amount acquiring process; and a first light irradiation process.

Image recording apparatus and medium storing program for image recording apparatus

A liquid discharge apparatus includes: a head, a radiation unit, a movement mechanism, and a controller. The controller is configured to: acquire a radiation distance for each of a plurality of areas defined on a surface of a recording medium; control the movement mechanism and the head to discharge the liquid to the surface of the recording medium; and control the radiation unit to radiate the light onto the plurality of the areas of the recording medium so that the longer the radiation distance for each of the plurality of areas, the stronger a light emission intensity of each of the plurality of light sources which faces each of the plurality of areas in the first direction.

Liquid discharge apparatus

There is provided a head unit including: head modules; a plurality of first tubes; and a plurality of second tubes. Each of the head modules includes: energy-applying mechanisms; supply buffer chambers; and return buffer chambers. The supply buffer chambers of the plurality of head module are connected in series via the plurality of first tubes. The return buffer chambers of the plurality of head modules are connected in series via the plurality of second tubes.

Head unit

Growing community of inventors

Nagoya, Japan

Atsushi Ito