Seiko Epson Corporation

Ken Yamagishi

Shigeki Suzuki

Satoru Kobayashi

Hisashi Sato

Daiki Tatsuta

Shuji Funada

Katsuhiro Okubo

Ryoichi Tanaka

Takahiro Kanegae

Masaaki Ando

Takeshi Iwamuro

Shigenori Nakagawa

Takao Yamamoto

Seiya Sato

Masako Fukuda

Toshinobu Yamazaki

Junya Suzuki

Kenichi Kitamura

Tomoki Udagawa

Masumi Hayakawa

A liquid ejecting apparatus includes a liquid ejecting head that has an ejection surface including a first nozzle row configured to eject a first ink and a second nozzle row configured to eject a second ink. The liquid ejecting head is configured to be held in an inclined posture in which the ejection surface is inclined with respect to a horizontal plane. The viscosity of the first ink is lower than the viscosity of the second ink, and in the inclined posture, the first nozzle row is positioned above the second nozzle row with respect to a gravity direction.

Liquid ejecting apparatus and liquid ejecting head

A flow channel member includes a first flow channel member non-transmissive of ultraviolet light and absorbent of laser light, a second flow channel member non-transmissive of ultraviolet light and absorbent of laser light, the second flow channel member being stacked on the first flow channel member to define a flow channel for liquid to flow between the second flow channel member and the first flow channel member, and a third flow channel member transmissive of laser light, the third flow channel member being fixed to the first flow channel member and the second flow channel member in such a manner as to close a gap between the first flow channel member and the second flow channel member.

Flow channel member, liquid ejecting head, liquid ejecting apparatus, and method for manufacturing liquid ejecting apparatus

A channel structure includes a base body having a first surface, a second surface that is opposite from the first surface, and a side surface that extends in a direction intersecting the first surface. The base body includes a first channel having a supply port into which a liquid is supplied, a liquid storing chamber formed in the first surface and storing the liquid, a second channel having a discharge port through which the liquid in the liquid storing chamber is discharged, and a pressure adjusting unit that supplies the liquid from the first channel to the liquid storing chamber according to pressure in the liquid storing chamber and that located between the first surface and the second surface. The supply port is formed in the second surface of the base body or formed in the side surface of the base body.

Channel structure, liquid ejecting unit, and liquid ejecting apparatus

A liquid discharge unit includes a liquid discharge head having a first joint portion and configured to discharge a liquid in a first direction, a liquid supply section having a second joint portion joined to the first joint portion to supply the liquid to the liquid discharge head, and disposed in a second direction opposite to the first direction relative to the liquid discharge head, and a support section which is formed together with the liquid discharge head, and to which the liquid discharge head is fixed. With respect to the first direction, a position at which the liquid supply section is fixed to the support section is located in the second direction with respect to a position at which the first joint portion and the second joint portion are joined to each other.

Liquid discharge unit and liquid discharge apparatus

A liquid ejecting unit includes: a liquid ejecting head; and a coupling member coupled to the liquid ejecting head, in which the liquid ejecting head has a first-coupling portion and a second-coupling portion, the liquid ejecting unit further includes: a first-attachment portion provided in a first-position of the coupling member; a second-attachment portion provided in a second-position of the coupling member, the second position being different from the first position; a first-elastic body; and a second-elastic body, and the first-elastic body biases the first-attachment portion or the first-coupling portion in a state in which the first-attachment portion is in contact with the first-coupling portion and the second-elastic body biases the second-attachment portion or the second-coupling portion in a state in which the second-attachment portion is in contact with the second-coupling portion, so that the coupling member is coupled to the liquid ejecting head.

Liquid ejecting unit and liquid ejecting apparatus

A first recess and a second recess are formed in a wall surface of the second space, a projection is formed between the first recess and the second recess, a first coupling port is formed in the first recess, a second coupling port is formed in the second recess, the projection extends in a direction of crossing between the first coupling port and the second coupling port, and a distance, between the first coupling port and a front end portion, in a first direction as a direction toward the first coupling port from the second coupling port among directions in a plane of the filter is smaller than a distance in the first direction between the first coupling port and one end portion of the projection and is smaller than a distance in the first direction between the first coupling port and another end portion of the projection.

Filter unit, liquid discharging head, and liquid discharging apparatus

A liquid ejecting apparatus includes: a liquid ejecting head including a plurality of nozzles for discharging liquid and a supply passage through which the liquid to be supplied to the plurality of nozzles flows. The nozzles are arranged in a line; one of the nozzles at a first end of the line being a first end nozzle, whereas one of the nozzles at a second end of the line being a second end nozzle. A height of the first end nozzle is set to be greater than a height of the second end nozzle. The liquid flows through the supply passage in a direction from the first end nozzle to the second end nozzle.

Liquid ejecting apparatus, and method of controlling liquid ejecting apparatus

A flow path member includes a gas chamber which allows inflow and outflow of gas, and a flexible member that partitions part of the gas chamber and deforms in response to pressure change in the gas chamber, wherein the flexible member has a contact section configured to abut another object, the contact section being disposed inside a regulation section in which deformation is regulated, and the contact section abuts the another object to seal the another object during at least one of depressurization and pressurization of the gas chamber.

Flow path members, liquid ejecting heads, and liquid ejecting apparatuses

A filter unit has a filter chamber disposed in a channel through which liquid is to be supplied to a liquid discharge unit. The filter unit has a filter and a partition. The filter is disposed in the filter chamber, inclined relative to a horizontal direction. The filter separates the filter chamber into an upstream chamber the liquid to be supplied and a downstream chamber in communication with the liquid discharge unit. The partition has a wall surface facing the filter. The partition separates the upstream chamber into a first chamber the liquid to be supplied to and a second chamber adjacent to the filter. The filter unit has, in an upper portion of the partition, an opening that allows communication between the first chamber and the second chamber.

Liquid discharge apparatus and filter unit

There is provided a flexible membrane mechanism that is used in a valve mechanism, the flexible membrane mechanism including: a lid member; a flexible membrane that forms a space between the lid member and the flexible membrane; and a fluid flow path that communicates with the space, in which the flexible membrane is deformed such that a valve of the valve mechanism is opened and closed and includes a protrusion portion that becomes a projection toward the lid member and becomes a recess toward the opposite side of the projection.

Flexible membrane mechanism, flow path member, and liquid ejecting apparatus

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 liquid ejecting apparatus includes: a pressure generating chamber which is used for discharging a liquid in the pressure generating chamber through a nozzle by driving a driving element; a manifold which supplies a liquid to the pressure generating chamber; a discharge unit which discharges a liquid in the pressure generating chamber through the nozzle. Mode 1 is a mode in which air is drawn into the pressure generating chamber through the nozzle due to the operation of the discharge unit, and Mode 2 is a mode which drives the driving element such that air is not drawn into the pressure generating chamber through the nozzle due to the driving of the driving element.

Liquid ejecting apparatus and method of controlling liquid ejecting apparatus

Provided is a liquid ejecting apparatus including: a head configured to reciprocate and having a nozzle surface provided with a nozzle for discharging a liquid; a lock configured to regulate reciprocation of the head; and a liquid saucer configured to receive the liquid, in which the nozzle surface of the head faces the liquid saucer and is separated from the liquid saucer in a state where reciprocation is regulated by the lock.

Liquid ejecting apparatus

A liquid holding container includes a liquid accommodating chamber, a flow path, and a filter. The liquid accommodating chamber is configured and arranged to hold liquid. The flow path is communicated with the liquid accommodating chamber via a first through hole and a second through hole. The filter is disposed in the flow path. The first through hole and the second through hole are each communicated with the flow path.

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Shiojiri, Japan

Ken Yamagishi