Seiko Epson Corporation

Ryusuke Takakura

Munehide Kanaya

Shoma Kudo

Naomi Kimura

Hidenao Suzuki

Keigo Iizawa

Soshi Okawa

Satoshi Kawamura

Nobuyuki Nishi

Masayuki Kanazawa

Naofumi Mimura

Keisuke Akimoto

A printer includes a cartridge is mounted in a cartridge holder, an needle-tube having an ink flow path, an protrusion disposed around the needle-tube as viewed from an axial direction of the needle-tube, and an elastic-member configured to be deformed in a direction from a tip end to a base end of the needle-tube, in which the elastic-member changes a relative positional relationship between a tip end position of the needle-tube and a tip end position of the protrusion from a first state in which the tip end position of the protrusion is located further away from the base end of the needle-tube than is the tip end position of the needle-tube, to a second state in which the tip end position of the protrusion is closer to the base end of the needle-tube than is the tip end position of the needle-tube upon being deformed by an external force.

Printer and cartridge

An ink tank includes a tank main body that is able to contain ink, an ink filling unit that is provided in the tank main body and has an opening which enables the tank main body to be filled with the ink, and a plurality of ribs that are provided around the ink filling unit of the tank main body and protrude from the tank main body. A clearance in which the ink is held due to a capillary force between the ribs is provided between two adjacent ribs among the plurality of ribs.

Ink tank unit, ink jet printer, and ink tank

An ink tank unit includes: an ink tank that is able to contain ink; an ink filling unit that is provided in a case of the ink tank and has an opening which enables the ink tank to be filled with the ink; and a second case that covers at least a part of a peripheral section of the ink filling unit, of a fifth wall of the case on which the ink filling unit is provided. A recessed section and a side wall which enables the ink to be guided to the recessed section are provided on at least one section of the peripheral section of the fifth wall and a section of the second case, which faces the peripheral section.

Growing community of inventors

Nagano, Japan

Ryusuke Takakura