Thermal ink jet pen body construction having improved ink storag

Details Thermal ink jet pen body construction having improved ink storag Thermal ink jet pen body construction having improved ink storag

1986-07-01

1988-09-13

Hartary, Joseph W.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

G01D 1518

Patent

active

047712953

ABSTRACT:
The novel pen body construction described herein includes multiple ink storage compartments communicating with a multi-orifice printhead, and these compartments are adapted to receive sections of ink-storage foam. Preferably, this foam is a reticulated polyurethane foam of controlled porosity and capalarity and is especially well suited for storing different ink colors, such as cyan, magenta and yellow. However, single compartment black ink storage is also within the scope of this invention.

REFERENCES:
patent: 3441950 (1969-04-01), Miller
patent: 4095237 (1978-06-01), Amberntsson
patent: 4306245 (1981-12-01), Kasugayama
patent: 4436439 (1984-03-01), Koto
patent: 4500895 (1985-02-01), Buck
patent: 4511906 (1985-04-01), Hara
patent: 4593296 (1986-06-01), Dagna
patent: 4611219 (1986-09-01), Sugitani
patent: 4630076 (1986-12-01), Yoshimura
patent: 4677447 (1987-06-01), Nielsen

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