Seiko Epson Corporation

Kiyofumi Usui

Takao Kobayashi

Yoshinori Miyazawa

Kazuo Koshino

Eiko Yanagida

Satoshi Shinada

Hisashi Miyazawa

Seiji Mochizuki

Takashi Suzuki

Shoichi Hiraide

Munehide Kanaya

Toshihisa Saruta

Hideto Matsuzaka

An ink cartridge including: an ink chamber for retaining liquid ink; a foam chamber maintained in fluid communication with the ink chamber through a communication hole. An ink supply port for supplying ink from a porous body accommodated in the foam chamber to a recording head is provided. The portion of the foam body confronting the ink supply port is compressed by the ink supply port. The ratio between the amount of ink initially charged in the ink chamber and that of ink absorbed in the porous body is in the range from 1:1 to 1:3. When a cartridge uses more than one color of ink for printing in color, a plurality of foam and ink cartridges are used. The cartridge is filled under reduced pressure while the interior of the cartridge is further evacuated before filling with ink.

Ink cartridge for ink jet printer and method of charging ink into said cartridge

Judgement on compatibility between ink cartridges and printing apparatus

An ink tank cartridge for an ink-jet type recording apparatus being removably mountable onto an ink supply needle of said ink jet type recording apparatus is provided. The ink tank cartridge comprises a first chamber for storing ink and a second chamber for storing a porous member. A partition wall separates the first chamber from the second chamber. A lid is attached to the top of the cartridge and at least a portion of the lid corresponding to at least one of the chambers may be opened to allow for replenishment of ink in the ink tank cartridge. Alternatively, the lid may be permanently fixed to the top on the ink tank cartridge, and an ink replenishment hole may be formed in the lid to allow for replenishment with an ink injection device. The ink tank may also be replenished by placing a self contained ink replenishment pack into said ink tank cartridge.

Ink jet recording apparatus and method for replenishing ink in the tank cartridge

Growing community of inventors

Suwa, Japan

Kiyofumi Usui