Seiko Epson Corporation

Seiya Sato

Masaki Shimomura

Hiroshige Owaki

Ryoji Fujimori

Akihiko Maruyama

Satoru Kobayashi

Seiji Tojo

Eiji Miyashita

Hidenori Usuda

Shinichi Kamoshida

Kenichiro Arai

Keiichiro Yoshino

Toshihiro Imae

Taro Takekoshi

Ken Yamagishi

Ryuichi Kurosawa

Shunsuke Kuramata

Shinji Hirata

Koichiro Miyazaki

Shin Takeuchi

Tomoki Udagawa

Shion Kubomura

A supply unit in which a liquid container including a coupling portion is detachably mounted includes a liquid introducing portion to which the coupling portion of the liquid container is coupled, a pressing member configured to press the liquid container in an uncoupling direction, which is a direction opposite to a coupling direction, when a direction in which the liquid container is coupled to the liquid introducing portion is defined as the coupling direction, an engaging portion configured to engage with the liquid container when the liquid container is coupled to the liquid introducing portion, and a speed reduction portion configured to reduce, when engagement of the engaging portion with the liquid container is released, a moving speed of the liquid container moving in the uncoupling direction.

Supply unit, liquid discharge device, and liquid container

There is provided a liquid ejecting apparatus including: a head that ejects a liquid; a supply unit that supplies a liquid to the head; a maintenance unit for maintaining the head; a selector unit that selects a unit to be opened to an atmosphere from the supply unit and the maintenance unit; and a housing that accommodates the supply unit, the maintenance unit, and the selector unit, in which the housing has an opening surface to which an exposure opening is open and a cover that closes the exposure opening, the exposure opening exposes the supply unit, the maintenance unit, and the selector unit, and when the exposure opening is viewed from a position facing the opening surface, the supply unit, the maintenance unit, and the selector unit are positioned not to overlap each other.

Liquid ejecting apparatus

A wiping module includes a wiping portion and a cleaning portion. The wiping portion includes a wiping member wiping a liquid discharge head that discharges a liquid from a nozzle provided on a nozzle surface, a storage support portion supporting the wiping member and configured to store the liquid by the wiping, and a movement support portion mounting the storage support portion and configured to reciprocate along a wiping direction, which is a direction in which the wiping is performed. The cleaning portion cleans the wiping member. The cleaning portion includes a cleaning member and a guide portion guiding the cleaning member. The cleaning member is configured to follow a movement of the wiping portion in the wiping direction and to scrape off the liquid adhering to the wiping member while being guided by the guide portion.

Wiping module, discharge module, liquid discharge apparatus, and wiping method of wiping module

A wiping device includes a wiper unit, a carriage, and a fixing member. The wiper unit includes a wiper that wipes a liquid discharge surface of a liquid discharge head from which liquid is to be discharged. The carriage moves along the liquid discharge surface in a first direction and a second direction, both of which are opposite to each other. The fixing member fixes the wiper unit to the carriage. When the carriage is disposed on a side in the first direction with respect to a middle point in a moving range of the carriage, the fixing member is removable in the first direction.

Wiping device and liquid discharge apparatus

A printer includes a line head and a wiper unit. The line head is provided to be movable between a recording position and a retreat position and performs recording on a medium by ejecting ink from an ejection surface at the recording position. The wiper unit is provided to be movable, in the Y direction, between a maintenance position at which a maintenance operation is able to be performed and a non-maintenance position away from the maintenance position. A permitting section is formed in the wiper unit. The permitting section permits a portion of the line head to move in a direction intersecting the Y direction in a state in which the wiper unit is at the non-maintenance position.

Printing apparatus

A liquid ejecting apparatus includes a liquid ejecting head that ejects a liquid from a plurality of nozzles disposed in a nozzle surface, a wiping member that wipes the nozzle surface, and a wiping member moving mechanism that moves the wiping member between a wiping position where the nozzle surface is wiped and a retracted position. The wiping member moving mechanism has a wiping member holding mechanism that holds the wiping member and a holding state releasing mechanism that releases a holding state of the wiping member holding mechanism in a case where a load that is equal to or higher than a set value is received.

Liquid ejecting apparatus and maintenance device

A liquid ejecting apparatus includes: a liquid ejecting unit that ejects, to a target, a liquid which is supplied from a liquid supply source via a liquid supply channel; a carriage on which the liquid ejecting unit is mounted and which moves with respect to the target; a gas containing chamber mounted on the carriage; and a pump that is disposed outside the carriage of the liquid ejecting apparatus and sends gas out to one system of a gas channel connected to the gas containing chamber and suctions gas from the gas channel.

Liquid ejecting apparatus and tube pump

A maintenance device includes a wiper that wipes a liquid ejecting unit; a double rack member which includes a rack sections made up of a first rack section and a second rack section and is configured to reciprocate the wiper; and an intermittent gear which includes a teeth portion which meshes with one of the two rack sections and a toothless portion which is arranged in line with the teeth portion in a rotation direction, wherein the double rack member allows the wiper to perform a forward motion when the first rack section meshes with the intermittent gear, and allows the wiper to perform a backward motion when the second rack section meshes with the intermittent gear.

Maintenance device and liquid ejecting apparatus

A liquid supply apparatus includes plural outlet flow paths respectively connected to the plural mounting units in which plural liquid storing bodies are respectively mounted, a supply flow path to which the plural outlet flow paths are connected, a switching unit capable of switching a communication status of each outlet flow path with the supply flow path, and a pressurizing and supplying unit that pressurizes and supplies liquid in the liquid storing bodies to the supply flow path. If the amount of liquid remaining in the liquid storing body communicating with one of the outlet flow paths is less than or equal to a second threshold greater than a first threshold, liquid in the liquid storing body communicating with another outlet flow path different from the one outlet flow path is made ready to be pressurized and supplied.

Liquid supply apparatus, liquid ejecting apparatus, and liquid supply method

A pump apparatus includes: a stationary shaft; a rotation-regulating member having a coil main body wound around the stationary shaft, the rotation-regulating member being permitted to rotate in a direction of loosening the coil main body and the rotation-regulating member being restrained from rotating in a direction of tightening the coil main body; a driven rotatable member that may rotate around the stationary shaft when a driving force of a driving source is transmitted; and a suction pump that has a rotary member driven together with rotation of the driven rotatable member and that performs a suction operation when the rotary member rotates. The suction pump is configured such that the rotation-regulating member rotates in the tightening direction of the coil main body when the driven rotatable member rotates in a direction opposite to a direction in which the driven rotatable member performs the suction operation.

Pump apparatus

A liquid ejecting apparatus includes first liquid ejecting nozzles that eject first liquid; a second liquid ejecting nozzle that ejects second liquid which is different from the first liquid; and a control unit which performs control of ejection of the first liquid from the first liquid ejecting nozzles and ejection of the second liquid from the second liquid ejecting nozzles. The control unit has a first mode of performing control to form flushing dots by ejection from the first liquid ejecting nozzles on a recording medium, the ejection not being based on image data, form background dots by ejection from the second liquid ejecting nozzle on the flushing dots, the ejection being based on the image data, and form image dots by ejection from the first liquid ejecting nozzles on the background dots, the ejection being based on the image data.

Control method of liquid ejecting apparatus

In a clutch mechanism, in a state where a suction capreaches a contact position being in contact with a liquid ejecting head, only the rotation of a third gearin one direction is transmitted to a third rotation shaft J. During at least one of a period in which the suction capmoves from the contact position to a separating position being separated from the liquid ejecting head and a period in which the suction capmoves from the separating position to the contact position, the rotations of the third gearin both directions of one direction and the other direction are transmitted to the third rotation shaft J

Cap device, maintenance device, and liquid ejecting apparatus

A cam roller is engaged with a first engaged surface facing downward in a lifting and lowering direction of a cap and moves so as to follow the rotation trajectory about a shaft in the upward direction approaching a liquid ejecting head and in the downward direction separating from the liquid ejecting head. In addition, in the lifting and lowering direction of the cap, the cam roller is engaged from above with a second engaged surface which faces upward at a position lower than the first engaged surface and the first engaged surface has a plane portion as a non-overlapped area which does not overlap the second engaged surface in a direction perpendicular to both of the lifting and lowering direction and the direction of the shaft in a range that the cam roller follows the rotation trajectory about the shaft.

Cap device and liquid ejecting apparatus

A fluid ejecting apparatus for ejecting a fluid includes a recording head and a capping device. The recording head includes a storage portion and a plurality of ejection nozzles. The capping device comes into contact with a discharge surface of the fluid in the recording head and receives the fluid discharged through the nozzles. The recording head capping device includes a cap-side channel and a passing portion. The cap-side channel faces the nozzles when the recording head capping device is in contact with the discharge surface. The passing portion creates negative pressure in the nozzles by passing a material in the cap-side channel. The cap-side channel includes a high flow rate section and a low flow rate section.

Fluid ejecting apparatus

A liquid ejection apparatus for accurately supplying a plurality of nozzle rows with liquid having an adjustable hydrodynamic flow pressure to eject the liquid. Black ink, cyan ink, magenta ink, and yellow ink are supplied to first to fourth valve units through first to fourth branch passages. Each ink is then supplied to nozzle rows of a recording head after the hydrodynamic flow pressure of the ink is adjusted. The hydrodynamic flow pressure of the ink supplied to each nozzle row is prevented from fluctuating. The liquid ejection apparatus accurately ejects ink from each nozzle row and improves the reliability of performing recording on a recording sheet.

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Matsumoto, Japan

Seiya Sato