Seiko Epson Corporation

Seiko Epson Corporatioin

Akihiko Maruyama

Nobuhiro Koike

Hidehiro Akahane

Kenichi Okuhara

Takashi Kawaguchi

Hiroshi Yabe

Shigeru Aoki

Hiroshi Suzuki

Seiya Sato

Kenji Sakamoto

Tatsuo Moriya

Masato Yoshino

Yuji Aoki

Hiroyuki Hagiwara

Akihiro Toya

Osamu Miyazawa

Tokujiro Okuno

Toshiyuki Sasaki

Katsutomo Tsukahara

Satoshi Iwaya

Joji Kitahara

Eisaku Shimizu

Akihiro Sawada

Seiji Tojo

Yuji Miyamoto

Eiichi Hiraya

Yuta Komatsu

Tomoyuki Miyazawa

Tsuneaki Furukawa

Nanami Haga

Hiroyuki Kubo

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

A tank unit includes a first inlet portion via which liquid supplied from a liquid container flows in, a first chamber configured to store the liquid that flows in via the first inlet portion, a first opening-to-atmosphere portion configured to open an inside of the first chamber to atmosphere, an outlet flow passage to which one end is connected to the first chamber, a second chamber connected to the other end of the outlet flow passage and configured to store the liquid supplied from the first chamber, a second opening-to-atmosphere portion configured to open an inside of the second chamber to atmosphere, and an on-off valve configured to open and close the outlet flow passage. The first inlet portion is connected to the first chamber via an opening portion at some midpoint in a vertical direction of the first chamber.

Tank unit and liquid ejecting apparatus

A supply unit configured to which a liquid container is detachably attached includes a support member that extends along a guiding route crossing a vertical line and that includes a distal region in which a starting end of the guiding route is positioned and a proximal region in which a termination end of the guiding route is positioned, a pivot shaft that is arranged in the proximal region and that has an axis crossing both the vertical line and guiding route, and a liquid inlet that is arranged below the support member and that is configured to be coupled to the liquid container.

Supply unit and liquid ejection apparatus

A liquid ejecting apparatus includes a liquid ejecting head which ejects liquid from nozzles; a liquid supply path which includes a liquid chamber partly formed of a flexible member, and supplies liquid to the liquid ejecting head; and a flow path unit which includes a displacement detecting unit which detects a displacement of the flexible member, and the liquid chamber, in which the flexible member closes the liquid supply path by being displaced in a direction in which a volume of the liquid chamber is reduced due to a decrease in liquid in the liquid chamber.

Liquid ejecting apparatus

A liquid ejecting apparatus includes a liquid ejecting head that ejects liquid, and a supply device that supplies the liquid from a liquid supply source to the liquid ejecting head, the supply device including a first liquid supplying flow path that supplies the liquid, a pump that feeds the liquid, a second liquid supplying flow path having one end connected to an upstream connecting portion and the other end connected to a downstream connecting portion, a pressure control valve disposed in the second liquid supplying flow path, a buffer in which a volume of a storage chamber varies by displacement of a flexible member, and a pressure applying section that applies pressure to the flexible member from an outside of the storage chamber.

Liquid ejecting apparatuses

A liquid container retaining unit includes: a first urging member for generating, in relation to the insertion of a liquid container into the container retaining element, an urging force to urge the liquid container in a removal direction; a container retaining mechanism for releasing the liquid container from a restricted state by moving the liquid container retained in the restricted state in the insertion direction so that the urging force of the first urging member is capable of moving the liquid container in the removal direction; a second urging member for generating, when the liquid container is retained within the container retaining element in the restricted state, an urging force to urge so as to cause the first electrodes on the liquid container and the second electrodes on the container retaining element to abut against each other.

Liquid container retaining unit and liquid ejecting apparatus

A recording apparatus includes a housing; a recording head that is provided inside the housing and records an image on paper by ejecting ink on the paper; a case that is attached to the housing in such a manner that the case can be separated from a side wall of the housing; and a first supply tube that supplies ink in a liquid container body contained in the case to the recording head. A through hole is provided in the side wall of the housing so as to allow the first supply tube to pass therethrough, and a through hole is provided in the case so as to allow the first supply tube to pass therethrough. The through hole in the case expands to be larger than the through hole in the side wall.

Recording apparatus

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 a liquid ejecting head that ejects liquid from nozzles; a liquid accommodation body having a liquid receiving surface configured to accommodate the liquid flushed from the nozzles; a pump that discharges the liquid; a liquid supply flow path that discharges the liquid discharged by the pump toward the liquid receiving surface in the liquid accommodation body; and a liquid discharge flow path that discharges the liquid from the liquid accommodation body.

A fluid discharge device, a control method for a fluid discharge device, and an ink tank enable easy and accurate confirmation of the fluid usage history, such as how much fluid is left in the tank, on the user or device side without increasing the price. An inkjet printer that discharges ink from the inkjet head to print on recording paper has a cartridge loading unit in which a ink cartridge is loaded, an inkjet head that discharges ink drawn from the ink cartridge, a reader/writer that reads and writes an ink usage history about usage of ink in the ink cartridge to an IC chip substrate disposed to the ink cartridge, and a control unit that prints at least a part of the ink usage history written to the IC chip substrate to a printable part on the outside surface of the ink cartridge by the inkjet head.

Fluid discharge device, control method for a fluid discharge device, and a fluid tank

A liquid ejecting apparatus includes: a flow channel unit, having a liquid flow channel for supplying a liquid stored in a liquid cartridge; and a plurality of cartridge holders, including a first cartridge holder and a second cartridge holder adjacent to each other, and attached to the flow channel unit while the cartridge holders are arranged in a first direction, each of the cartridge holders adapted to hold the liquid cartridge and having a first engaging portion and a second engaging portion. The first engaging portion of the first cartridge holder and the second engaging portion of the second cartridge holder are engageable with each other to lock the first and second cartridge holders, and the first engaging portion of the first cartridge holder and the second engaging portion of the second cartridge holder are disengageable from each other to unlock the first and second cartridge holders when one of the first and second cartridge holders is moved in a second direction that is apart from the flow channel unit.

A mechanism having at least a function of measuring an arbitrary elapsed time is provided, which disables the function from being reset after the function is started, and enables the function to be reset after the function is stopped. The function is continuously held in an electrical ON state after being started, except when being normally stopped. This provides a time measurement device and method in which an electrical operating state and a mechanical operating state can coincide.

Time measurement device and method

An electronic timepiece without system failure at the time of transfer from the power-saving mode to the display mode is provided. A power-saving control circuitcontrols drive of a date dial displaying a date when updating a date display, which has been stopped in a power-saving mode, to a current date at the time of transfer from the power-saving mode to the display mode. The power-saving control circuitoutputs a date dial drive inhibiting signal, which prohibits drive of the date dial, to a date-updating control circuit, if a voltage VDD of a power source unit B is less than or equal to a low threshold voltage V1. It outputs a date dial deceleration driving signal, which drives a date dialwith a predetermined speed slower than a normal update speed when transferring to the display mode, to a date-updating control circuit, if a source voltage VDD is equal to or less than a high threshold voltage V2.

Electronic timepiece with controlled date display updating

A printer having a plurality of switching mechanisms movable between a first position and a second position. A selector is associated with a carriage of the printer such that the carriage moves the selector so as to actuate at least one of the switching mechanisms to the second position when the carriage moves to the first non-printing region, and so as to actuate the at least one of the switching mechanisms to the first position when the carriage moves to the second non-printing region.

Growing community of inventors

Matsumoto, Japan

Akihiko Maruyama