Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1987-07-15
1989-01-31
Hartary, Joseph W.
Recorders
Markers and/or driving means therefor
With ink supply to marker
G01D 1518
Patent
active
048019550
ABSTRACT:
An ink jet printer having a print head which comprises a front nozzle member having a front channel, a housing secured to the front nozzle member, and a rear nozzle member which defines with the housing a liquid chamber and further defines with the front nozzle member a laminar airflow chamber. The rear nozzle member has a forwardly projecting nozzle and a rear channel extending from the liquid chamber through the projecting nozzle in axial alignment with the front channel to form a meniscus at the front end. An electric field gradient is established between the front channel and the meniscus to cause the latter to extend toward the front channel and expelled through the front channel. A portion of the front nozzle member is rendered liquid-repellant to prevent the field distribution from being seriously disturbed by an ink layer formed on it by stray liquid particles.
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Akami Kenji
Kojima Tamotsu
Miura Masayoshi
Naito Hiroshi
Oda Gen
Hartary Joseph W.
Matsushita Electric - Industrial Co., Ltd.
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