Seiko Epson Corporation

Toshio Nakata

Ryoji Fujimori

Yuichi Urabe

Naoyuki Okumura

Tsutomu Yamazaki

Yukihiro Hanaoka

Toshiyuki Suzuki

Shuhei Harada

Atsushi Nishioka

Kazuhiko Sato

Toshihiro Shinbara

Kazutoshi Shimizu

Noritaka Mitsuo

Masaki Uchiyama

Hisashi Sato

Kazushi Arafuka

Shinji Hirata

Yoshiaki Kishii

Yuki Shiohara

Munechika Otsuru

Yasuhiro Harada

Sawako Tsujimura

A waste liquid container includes an accommodation chamber including an opening that is open upward of the waste liquid container in a mounted state where the waste liquid container is mounted in the mounting portion, the accommodation chamber being configured to accommodate the liquid, and a contact portion provided at a surface that intersect with a bottom surface and an upper surface of the waste liquid container, the contact portion being configured to contact a horizontal plane and set a posture of the accommodation chamber with respect to the horizontal plane in a placement state where the waste liquid container is placed at the horizontal plane with the surface facing downward, wherein in the placement state, an inner surface is in an inclined state where the bottom surface is lower than the upper surface, the inner surface serving as a lower surface of the accommodation chamber.

Waste liquid container

A liquid circulation mechanism includes a supply flow path making a liquid supply source and a liquid discharging head communicate with each other and a collection flow path making the liquid discharging head and a connection portion of the supply flow path communicate with each other, in which a branch portion, a plurality of flow paths branched at the branch portion, and a merging portion, in which the plurality of flow paths are merged, are provided in at least one of the supply flow path and the collection flow path. Pressure adjustment portions, which are provided in the plurality of flow paths and open the flow paths when a pressure on the liquid discharging head side is equal to a predetermined pressure, have different the predetermined pressures for opening the flow paths in the plurality of flow paths.

Liquid circulation mechanism, liquid circulation device, and liquid discharging apparatus

A liquid circulation mechanism includes a first storage portion configured to store liquid to be supplied to a liquid discharging head, a second storage portion configured to store the liquid collected from the liquid discharging head, a third storage portion configured to store the liquid between the second storage portion and the first storage portion, a first check valve allowing flow of the liquid from the second storage portion to the third storage portion while regulating flow of the liquid from the third storage portion to the second storage portion, in the second collection flow path, and a second check valve allowing flow of the liquid from the third storage portion to the first storage portion while regulating flow of the liquid from the first storage portion to the third storage portion, in the third collection flow path.

A liquid ejecting apparatus includes a liquid ejecting head configured to eject liquid from a nozzle onto a medium to perform printing, a liquid accommodating unit configured to receive, via an opening, the liquid ejected by empty discharging that ejects the liquid from the liquid ejecting head separately from the printing, a cover movable to a closed position where the opening of the liquid accommodating unit is covered and an open position where the opening is opened, and a detection unit configured to detect the cover positioned at the closed position or the open position.

Liquid ejecting apparatus, method for controlling liquid ejecting apparatus

A roll wiping member unit includes a long wiping member and a core. The long wiping member has a starting end and a terminating end at ends in a longitudinal direction and a wiping portion that is subjected to a tensile load at a position between the starting end and the terminating end. The long wiping member is configured to wipe a liquid ejecting head at the wiping portion. The long wiping member is wound on the core from the terminating end in a roll. The long wiping member has a weak portion having strength that does not withstand the tensile load at a position closer than the wiping portion to the terminating end.

Roll wiping member unit, wiper cassette, wiper unit, liquid ejecting apparatus, and method of using wiping member

A cap device is designed to form a space surrounding an opening of a nozzle of a liquid ejecting head when the cap device is in contact with the liquid ejecting head including the nozzle for ejecting a liquid, and includes a moisturizing chamber to which a moisturizing fluid for moisturizing the above space is supplied, and a partition wall having gas permeability and configured to partition the space and the moisturizing chamber, where part of the partition wall is formed of a flexible portion.

Cap device and liquid ejecting apparatus

A winding apparatus that can restrain a medium from being wound unevenly when a long medium is wound around a winding roller and a printing apparatus that includes the winding apparatus are provided. A winding apparatus includes a winding section that has a winding roller rotatably supported therein and winds a long medium around the winding roller. The winding section also has a pressing portion that presses the medium toward the winding roller.

Winding apparatus and printing apparatus

A liquid droplet ejecting apparatus includes a liquid droplet ejecting head that includes a pressure chamber to which a liquid is supplied from a liquid supply source, a nozzle that communicates with the pressure chamber, and an actuator that vibrates the pressure chamber, and discharges a liquid droplet from the nozzle by driving of the actuator, a cap designed to make a capping state where the cap is in contact with the liquid droplet ejecting head to form a space where the nozzle opens and a non-capping state where the cap is separated from the liquid droplet ejecting head, and a detection unit designed to detect a state in the pressure chamber, in which in the capping state, the detection unit detects the state in the pressure chamber.

Liquid droplet ejecting apparatus and method for maintenance of liquid droplet ejecting apparatus

A capping device includes a moisturizing cap which is brought into contact with a liquid ejecting unit configured to eject a liquid from a nozzle so as to allow forming of a space including the nozzle, a connection flow channel which is connected to the moisturizing cap, and a moisturizing liquid supply unit which is connected to the connection flow channel, includes a moisturizing liquid storage unit configured to allow storing of a moisturizing liquid, and allows a supply of the moisturizing liquid to the moisturizing liquid storage unit so as to cause a liquid surface of the moisturizing liquid in the moisturizing liquid storage unit to be a first position. The moisturizing cap includes an atmospheric communication portion configured to open the space to an atmosphere.

Capping device and liquid ejecting apparatus

A printing apparatus is provided with: a recording head that performs printing on a medium fed out from a transport roller pair; a feeding unit that feeds the medium to the transport roller pair; and a winding unit that winds, into a roll shape, the medium subjected to the printing by the recording head. The winding unit winds the medium while adjusting a front tension acting on the medium between the transport roller pair and the winding unit, depending on a diameter of the medium wound into the roll shape. The feeding unit feeds the medium while adjusting a back tension acting on the medium between the transport roller pair and the feeding unit, depending on changes in the front tension.

Printing apparatus

A recording device includes a base body, an air current generator that is disposed in the base body, and a duct that has an opening and configures an air current flow path formed from the opening to the air current generator. The duct is attachable to and detachable from the base body.

Recording device

A sheet transport device includes a transporter that transports a sheet from an upstream side to a downstream side in a transport direction by a transport roller; a driver that drives the transporter; a phase sensor that detects a phase start point and a rotation phase indicating an amount of rotation from the phase start point of the transport roller that is rotated by driving of the driver; a memory that stores correction phases for correcting transport distance of the sheet that is transported by rotation of the transport roller; a corrector that selectively performs correction control using a unit correction amount for the rotation of the transport roller, and controls the performance of the correction control based on the rotation phase of the rotation.

Sheet transport device, recording apparatus including the same, and sheet transport method

A recording apparatus includes: a driving unit that drives the transporting unit; a phase detecting unit that detects a phase origin of the transport roller rotating in accordance with the driving of the driving unit and a rotational phase indicating an amount of rotation from the phase origin; a recording unit that performs recording on the sheet transported with the transporting unit; and a control unit that controls the driving unit such that the transport roller rotates within a certain transport range based on a preliminarily set reference phase, forms a first pattern by controlling the recording unit at a first rotation phase at a control start point of the driving unit, forms a second pattern by controlling the recording unit at a second rotation phase at a control end point of the driving unit, and then forms a correction pattern including the first and second patterns.

Recording apparatus

An inkjet printer that automatically expels bubbles trapped at a filter&mdash;which removes foreign materials from ink supplied to the inkjet head&mdash;to eliminate ink discharge problems caused by trapped air bubbles. Ink ( ) is supplied through ink-supply-line part ( ), filter ( ), and ink-intake opening ( ) to inkjet head ( ) of inkjet printer ( ). If a bubble ( ) in ink ( ) becomes trapped at the top surface ( ) of filter ( ), the bubble ( ) is separated from the filter top ( ) by the buoyancy of the ink ( ). When the bubble ( ) separates from the filter top ( ), it forms a spherical bubble ( A). This spherical bubble ( A) then rises through conically shaped ink-path-connection part and ink-supply-line part . The internal volume of ink-path-connection part is less than 1.1 times the volume of a sphere internally tangent to ink-supply-line part . Therefore, bubble ( A) freely rises through ink-supply-line part . Print defects that occur when a bubble ( ) is trapped at the filter top are, therefore, prevented.

Inkjet printer having a connection block which automatically eliminates bubbles trapped on a filter

A connection unit for an inkjet head whereby an ink supply passage is formed by bonding an inkjet head component to a case member such that ink ejection problems do not occur, ink does not leak, reliability is high, and manufacturing is simple. A bonding channel,encircling an ink supply opening,is provided between the bonding surfaces of the head component,and head case,. Adhesive is then injected from an adhesive injection opening,to fill the bonding channel to an vent hole

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Matsumoto, Japan

Toshio Nakata