Seiko Epson Corporation

Toshihiro Shinbara

Takayuki Kawakami

Kazuhiko Hara

Akira Mizutani

Hironori Sato

Hiroshi Mukai

Masako Fukuda

Tsuyoshi Hayashi

Hiroki Nakane

Kaoru Koike

Ryoji Fujimori

Takeshi Yoshida

Kazuyuki Fujioka

Hitotoshi Kimura

Shuichi Koganehira

Yasuhiko Kosugi

Toshiyuki Suzuki

Takeshi Iwamuro

Tomohiro Sayama

Keiji Matsumoto

Tomoki Shinoda

Toshio Nakata

Hiroki Matsuoka

Yuji Kanazawa

Shinsuke Yokote

Nagatoshi Kasahara

A printer has a recording head, a relay container from which ink is supplied to the recording head, and to which the ink is supplied from a terminal container, a pressurizing pump and a depressurizing pump for supplying the ink from the terminal container to the relay container, and a control unit. The control unit calculates an estimated consumption amount of the relay container based on the amount of the ink supplied from the relay container to the recording head, and consumed and the amount of the ink supplied from the terminal container to the relay container, and calculates the amount of the ink supplied from the terminal container to the relay container using the minimum value of tolerance of a supply amount of the depressurizing pump.

Recording apparatus

A liquid ejecting apparatus includes a liquid ejecting section that is capable of ejecting a first liquid from an opening of a nozzle with respect to media; and a two-fluid ejecting apparatus that is capable of ejecting at least one of a gas and a second liquid with respect to the liquid ejecting section.

Maintenance method of liquid ejecting apparatus

In a filling operation of filling liquid in a liquid supply flow path which includes a filter having holes by causing a pressure on a downstream side in the liquid supply flow path to be lower than a pressure on an upstream side, and a maximum pressure difference which occurs between an upstream side of the filter and a downstream side of the filter is larger than a pressure difference for destroying a gas-liquid interface formed in the hole in a case where the upstream side of the filter is the liquid, and the downstream side of the filter is gas, and is smaller than a pressure difference for destroying the gas-liquid interface formed in the hole, in a case where the upstream side of the filter is the gas, and the downstream side of the filter is the liquid.

Liquid ejecting apparatus and filling method of liquid ejecting apparatus

Liquid ejecting apparatus and maintenance method of liquid ejecting apparatus

A liquid supplying device includes a first intermediate storage and a second intermediate storage, both of which can supply liquid to a liquid ejecting unit. In a case where a storage amount of one intermediate storage is a first set value, the depressurization of the inside of one intermediate storage is stopped. In a case where a storage amount of the other intermediate storage is a second set value that is smaller than the first set value, first supply control of supplying the liquid from one intermediate storage to the other liquid ejecting unit is performed. In a case where the storage amount of the other intermediate storage is the second set value, second supply control of supplying the liquid from one intermediate storage is performed.

Liquid supplying device, liquid ejecting apparatus, and liquid supplying method

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

An ink jet recording apparatus includes a recording head having a plurality of nozzles through which an ink composition containing an inorganic pigment is ejected, a nozzle surface having nozzle orifices, and a liquid-repellent film disposed on the nozzle surface; an absorbing member that absorbs the ink composition containing the inorganic pigment from the nozzle orifices and the nozzle surface; and an actuating mechanism including a pressing member that presses the absorbing member, which contains an impregnation liquid, and the nozzle surface relative to each other. The actuating mechanism moves at least one of the absorbing member and the recording head relative to the other to perform a cleaning operation in which the ink composition is removed from the nozzle surface with the absorbing member.

Ink jet recording apparatus

A liquid droplet ejecting apparatus includes a liquid droplet ejecting head that includes a plurality of nozzles from which a liquid supplied from a liquid supply source through a liquid supply path is ejected as a liquid droplet, and ejects the liquid droplet from the nozzle to a recording medium to perform a recording process, a first detecting section that detects a vibration waveform of the pressure chamber, which is vibrated when an actuator is driven to cause the pressure chamber communicating with the nozzle to vibrate, to detect a state inside the pressure chamber, and a second detecting section that reads a pattern formed on the recording medium by ejecting the liquid droplet from the nozzle to detect an ejection state of the liquid droplet.

Liquid droplet ejecting apparatus, remote monitoring system, and method of determining replacement necessity of liquid droplet ejecting head

An ink jet recording apparatus includes a recording head having a plurality of nozzles through which an ink composition containing an inorganic pigment is ejected, a nozzle surface having nozzle orifices, and a liquid-repellent film disposed on the nozzle surface; an absorbing member that absorbs the ink composition containing the inorganic pigment from the nozzle orifices and the nozzle surface; and an actuating mechanism including a pressing member that presses the absorbing member and the nozzle surface relative to each other. The actuating mechanism moves at least one of the absorbing member and the recording head relative to the other to perform a cleaning operation in which the ink composition is removed from the nozzle surface with the absorbing member. The absorbing member contains an impregnation liquid having a surface tension of 45 mN/m or less during the cleaning operation.

A liquid supplying device includes a first intermediate storage and a second intermediate storage that store liquid and are provided such that the liquid can be supplied from a liquid ejecting unit which ejects the liquid, a liquid supply source holding unit that holds a liquid supply source which accommodates the liquid and that can supply the liquid accommodated in the liquid supply source to the first intermediate storage and the second intermediate storage, and a pressure regulating mechanism that can regulate pressures inside the first intermediate storage and inside the second intermediate storage. In the liquid supplying device, the inside of one intermediate storage, out of the first intermediate storage and the second intermediate storage, is depressurized, and the liquid is supplied from the liquid supply source to the one intermediate storage.

A liquid ejecting apparatus includes a liquid ejecting unit having nozzles able to eject a first liquid to a medium; and a fluid ejecting device having ejection ports able to eject a fluid including a second liquid to the liquid ejecting unit, in which the fluid ejecting device performs, as a maintenance operation of the liquid ejecting unit, a first fluid ejection of ejecting a fluid including small droplets of the second liquid that are smaller than a nozzle opening to an opening region in which the nozzles of the liquid ejecting unit open, and a second fluid ejection of ejecting a fluid including droplets of the second liquid in which the smallest droplets are larger than the small droplets to the liquid ejecting unit.

Liquid ejecting apparatus

An ink set includes a recording ink and a displacement ink. The recording ink contains a pigment, a resin, water, and a first surfactant and is substantially free of alkyl polyols with a normal boiling point of 280&#xb0; C. or more. The displacement ink contains water, a second surfactant, an aprotic polar solvent, and an alkyl polyol with a normal boiling point of 280&#xb0; C. or more. Each of the first surfactant and the second surfactant includes a silicone surfactant and/or a fluorosurfactant. The resin includes a water-soluble resin and/or a resin emulsion. The recording ink has a higher surface tension than that of the displacement ink.

Ink set for ink jet recording, and recording apparatus

An ink composition contains a pigment, first wax particles, second wax particles, and a resin emulsion, in which the first wax particles have a melting point of 120&#xb0; C. or higher and 170&#xb0; C. or lower, the second wax particles have a melting point of 70&#xb0; C. or higher and less than 120&#xb0; C., the resin emulsion has a glass transition point of 50&#xb0; C. or higher and 150&#xb0; C. or lower, the first wax particles contain one or more kinds of wax particles selected from the group consisting of polyethylene wax particles or polypropylene wax particles, and the second wax particles contain one or more kinds of wax particles selected from the group consisting of polyethylene wax particles.

Ink composition and ink jet recording method

The liquid ejecting apparatus includes a cleaning member that is brought into contact with a region including a nozzle face of the liquid ejecting head that ejects a liquid from nozzles formed in the nozzle face such that the cleaning member is capable of cleaning the liquid ejecting head, the cleaning member having a pile section in which a plurality of pile elements are raised in a portion of the cleaning member in contact with the region of the liquid ejecting head.

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Matsumoto, Japan

Toshihiro Shinbara