Seiko Epson Corporation

Epson Corporation

Kabushiki Kaisha Suwa Seikosha

Kabushiki Kaisha Suwa Seikosha & Epson Corporation

Masanao Matsuzawa

Yoshinori Miyazawa

Takashi Suzuki

Takahiro Katakura

Norihiko Kurashima

Hitoshi Fujiwara

Yoshifumi Gomi

Yoshito Ikeda

Toshio Kumagai

Hisashi Miyazawa

Fujio Akahane

Tsuyoshi Kitahara

Shinji Yasukawa

Shuji Yonekubo

Makoto Matsuzaki

Hideaki Sonehara

Osamu Nakamura

Hideki Morozumi

Katsuhiko Iida

Koichi Higashimura

Hidenori Omae

Toshiaki Ohshima

Yasuhito Hirashima

Yoshihisa Morita

An ink-supplied wire dot matrix printer head for actuating wires with ink attached to tip ends thereof into contact with a sheet of print paper to transfer ink to the sheet, thereby forming ink dots thereon. The ink-supplied wire dot matrix printer head includes a wire guide member having a wire guide hole for guiding the tip end of the wire, and an ink tank containing an ink absorbing body therein and having an ink supply port in which a portion of the wire guide member is inserted. The wire guide member has a capillary ink path communicating with a side of the wire and supplied with ink from the ink absorbing body.

Ink supply tank for a printer

An ink-supplied wire dot matrix printer head for actuating wires with ink attached to tip ends thereof into contact with a sheet of print paper to transfer ink to the sheet, thereby forming ink dots thereon. The ink-supplied wire dot matrix printer head includes a wire guide member having a wire guide hole for guiding the tip end of the wire, and an Ink tank containing an ink absorbing body therein and having an ink supply port in which a portion of the wire guide member is inserted. The wire guide member has a capillary ink path communicating with a side of the wire and supplied with ink from the ink absorbing body.

Ink-supply tank for a printer

Ink-supply wire dot matrix printer head

Ink-supply tank for a dot matrix printer

An on-demand type ink jet print head, comprising: a plurality of ink tanks disposed at a lower position of a carriage to be independent of each other, pressure varying means provided on one of the tanks; an air release port communicating with the other one of the tanks; a head assembly provided on top of the tanks to communicate with the tanks through flow paths at both sides of the head assembly. The object of the invention is to achieve stable printing independent of the amount of ink in an ink tank and discharge bubbles in a nozzle head together with the ink.

On-demand type ink jet print head

Ink supply mechanism for a dot matrix printer

Dot matrix printer head

An ink-supply system for a dot matrix printer including an ink-supply tank having an ink-supply delivery port and an ink absorbing member having at least two separate porous members disposed as stacked layers, one of the porous members which is closer to the ink-supply delivery port being made of a porous material having a smaller average pore size than the porous material of the other porous member more remote from the ink-supply delivery port.

Ink-supply system for a dot matrix printer

An ink-supply system for a dot matrix printer including an ink-supply tank formed with an ink supply delivery port having an opening for passage of ink from the ink-supply tank. An ink absorbing member formed of a porous material is mounted within the ink-supply tank and compressed relative to at least another region of the ink absorbing member at least in the region thereof facing the opening of the ink supply delivery port.

An ink-supply system for a dot matrix printer including an ink-supply tank having an ink-supply delivery port, an ink impregnated member formed of a porous material within the ink-supply tank, and ink impregnated in the ink absorbing member under a pressure sufficiently low to substantially eliminate air bubbles within the ink impregnated member.

Dot matrix printer supply system having ink absorbing member filled

Growing community of inventors

Shiojiri, Japan

Masanao Matsuzawa