Seiko Epson Corporation

Tadatoshi Honzawa

Takao Kobayashi

Hisashi Koike

Masahide Matsuyama

Yuichi Nakamura

Morio Sato

Kazunori Ito

Taeko Nishimura

Shinichi Yanagisawa

Kiyoshi Kitahara

Takashi Hara

Seiichi Takada

Masakazu Sato

Kazuo Yamada

Masahiko Fukazawa

Masahiro Nakamura

Michinari Tsukahara

Masanori Kamijyo

Takeshi Kobayashi

A method of manufacturing an ink cartridge for use in an ink jet recorder including positioning a container body having a bottom wall and an opening on a pallet such that the bottom wall faces upward, the container body including a porous member, a foam chamber for accommodating the porous member therein, and an ink supply port, having an inlet formed in the bottom surface of the foam chamber and an outlet; inserting packing into the ink supply port; sealing the ink supply port outlet; resetting the container body on the pallet by turning the container body upside down such that the opening faces upward; affixing a filter to the ink supply port inlet; inserting the porous member into the foam chamber; bonding a cover to the opening of the container body; injecting ink into the foam chamber; and sealing the cover.

Method of manufacturing an ink cartridge for use in ink-jet recorder

The ink bag is structured as follows: To the respective long side portions (,) of a rectangular-shaped, thermally fusible first film forming the surface portions (,) of the ink bag, there are attached, by thermal fusion, the long side portions of a rectangular-shaped, thermally fusible second film forming the side surface portions (,) of the ink bag and having lower rigidity than the first film to thereby form a cylindrical body. The one-side short side portions (,) of the surface portions of the ink bag are attached together by thermal fusion to form a bag body. An ink supply hole forming member (,) is attached by thermal fusion to the other-side short side portions of the surface portions of the ink bag. In the four corners of the ink bag, there are formed band-shaped connecting portions (,to,) each starting from one of the two mutually adjoining sides of the ink bag and reaching the other of the two sides.

Ink bag for ink jet type recording apparatus and package suitable for packing such ink bag

Method of manufacturing an ink cartridge for use in ink jet recorder

Growing community of inventors

Nagano, Japan

Tadatoshi Honzawa