Seiko Epson Corporation

Takuya Okina

Yukihiro Hanaoka

Eiichiro Watanabe

Masaru Kumagai

Hirokazu Ono

A liquid ejecting apparatus includes a liquid ejecting head having nozzles and an opening surface through which the nozzles are opened, the liquid ejecting head being configured to eject liquid from the nozzles, a supply flow path configured to supply the liquid to the liquid ejecting head, a pressurizing mechanism that can pressurize the inside of the supply flow path, an opening/closing mechanism that can open and close the supply flow path, and a control unit that controls operations of the liquid ejecting head, the pressurizing mechanism, and the opening/closing mechanism.

Liquid ejecting apparatus

A liquid ejecting apparatus includes a liquid ejecting section and a protective member. The liquid ejecting section has an aperture surface having ejection outlets that eject liquid droplets. The protective member has passage openings through which the liquid droplets pass. The protective member is disposed between a medium and the aperture surface when the liquid ejecting section ejects liquid droplets onto the medium.

A liquid ejecting apparatus includes: a liquid ejecting section in which a nozzle capable of ejecting liquid is provided; a supply flow path that supplies the liquid to the nozzle; a pressurizing mechanism that discharges the liquid from the nozzle by pressurizing the liquid inside the supply flow path; and a pressure reducing mechanism that discharges the liquid from the nozzle by reducing a pressure of a space communicating with a side opposite to a side of the supply flow path of the nozzle. In a maintenance operation discharging the liquid from the nozzle by driving at least one of the pressurizing mechanism and the pressure reducing mechanism, the last discharging operation of the maintenance operation is performed by driving the pressurizing mechanism from a state where the negative pressure is caused to act on the inside of the nozzle by driving the pressure reducing mechanism.

Liquid ejecting apparatus and maintenance method

An agitating device includes: a movement portion which is provided in a liquid accommodation portion that has an accommodation chamber accommodating a liquid containing a functional material and a deformation portion that is deformed so as to change a volume of the accommodation chamber, and is moved along with deformation of the deformation portion; and an agitating portion which agitates the liquid in the accommodation chamber along with movement of the movement portion.

Growing community of inventors

Shiojiri, Japan

Takuya Okina