Seiko Epson Corporation

Kaoru Koike

Toshio Kumagai

Masaaki Ando

Ryoji Fujimori

Hiroki Matsuoka

Yoshihiro Kobayashi

Hiroaki Kida

Mitsuaki Yoshizawa

Yusuke Mizutaki

Takeshi Yoshida

Masato Murayama

Toshihiro Shinbara

Tsuyoshi Hayashi

Haruhisa Uezawa

Hidenori Usuda

Shuichi Koganehira

Yasuhiko Kosugi

Shinichi Kamoshida

Nobuhito Takahashi

Hiroyuki Nakamura

Masahiko Sato

Shigenori Nakagawa

Kazutoshi Shimizu

Kazuhito Hori

Daiki Tatsuta

Tadayuki Yoshimoto

An ink jet recording method includes ejecting an ultraviolet-ray curable ink of which a viscosity at 28&#xb0; C. is 8 mPa&#xb7;s or more from a head to a recording medium, and curing the ultraviolet-ray curable ink attached to the recording medium, wherein, in the ejecting of the ultraviolet-ray curable ink, the ultraviolet-ray curable ink is heated such that a temperature of the ejected ultraviolet-ray curable ink becomes 28&#xb0; C. to 40&#xb0; C., and a viscosity of the ultraviolet-ray curable ink at the temperature is 15 mPa&#xb7;s or less.

Ink jet recording method, ultraviolet-ray curable ink, and ink jet recording apparatus

A liquid ejecting apparatus includes a liquid ejecting section from which liquid is ejected. A return passage has a first end connected to a supply passage at a first location and a second end connected to the supply passage at a second location. The second location is positioned closer to the liquid ejecting section than the first location. The return passage and the supply passage constitute a circulating passage. A pump can cause fluid to flow through the circulating passage. A replaceable filter unit is a portion of the return passage. A discharge passage through which the fluid is discharged to the outside is connected to the return passage. An inflow controller can suppress external fluid from entering the discharge passage.

Method of discharging fluid from liquid ejecting apparatus

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 flow path which communicates with a nozzle which ejects liquid; a vacuum degassing chamber for removing air bubbles from liquid by depressurizing a part of the liquid flow path; a gas flow path which communicates with the vacuum degassing chamber; a pressurizing chamber which communicates with the gas flow path; and a pump which communicates with the vacuum degassing chamber and the pressurizing chamber through the gas flow path, in which the pump is driven by a sequence selected from a plurality of sequences, and the plurality of sequences include a plurality of depressurizing sequences in which the vacuum degassing chamber is depressurized so that an average pressure of the vacuum degassing chamber becomes different, and a pressurizing sequence in which the pressurizing chamber is pressurized.

Liquid ejecting apparatus and driving 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

Liquid ejecting apparatus and method of discharging fluid from liquid ejecting apparatus

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.

There is provided an ejecting unit for ejecting a first fluid from nozzles, including: a first connection port to flow the first fluid; a second connection port to flow a second fluid; a driving portion configured to eject the first fluid in a flow path which communicates with the first connection port and the nozzles, from the nozzles; a first chamber that communicates with the second connection port; and a second chamber that communicates with the second connection port.

Liquid ejecting unit, driving method thereof, and liquid ejecting apparatus

A liquid circulation device includes a supply unit that forms a flow path supplying a liquid from a reservoir unit; a collection unit that forms a flow path collecting the liquid to the reservoir unit; and N number of the connection units provided respectively corresponding to N number of ejection units ejecting the liquid forming a flow path connecting the supply unit and the collection unit via the ejection units, wherein with regard to each of N number of the connection units, a connection order of the connection units with respect to the supply unit, which is counted from upstream in a flow direction of the liquid in the supply unit coincides with a connection order of the connection units with respect to the collection unit, which is counted from upstream in the flow direction of the liquid in the collection unit.

Liquid circulation device and liquid ejection apparatus

A liquid ejecting apparatus includes a first passage through which liquid flows from a tank to liquid ejecting heads; and a second passage through which liquid flows from the heads to the tank. The first passage includes a third passage connecting to the tank, a fourth passage branching from the third passage at a first position to allow the third passage to communicate with a first head, and a fifth passage branching from the third passage at a second position to allow the third passage to communicate with a second head. The lengths, cross-sectional areas, and resistances of various passages are set relative to others.

Liquid ejecting apparatus

Growing community of inventors

Matsumoto, Japan

Kaoru Koike