Title: Ink jet nozzle for use in a recording unit

Abstract: A recording unit is disclosed which is provided with a hollow, very small nozzle supplied with a liquid imaging material, an electrode plate having formed therein a through hole coaxial with the nozzle and disposed opposite to the tip of the nozzle and a ring of small diameter disposed on the nozzle coaxially therewith in the vicinity of its tip or between the nozzle and the electrode plate. A convergent or unfluctuated jet of the liquid imaging material produced by a voltage applied between the nozzle and the electrode plate disposed opposite thereto is directed through the through hole of the electrode plate to a recording member or medium placed adjacent to the electrode plate on the opposite side from the nozzle. The convergent jet of the liquid imaging material thus produced is made intermittent by applying a voltage to the ring, thereby to record images.

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Inventors: Ohno, Genji (Yokohama, JA)
Uchiyama, Tadamitsu (Tokyo, JA)
Ohki, Seisaku (Tokyo, JA)
Morohashi, Hishao (Tokyo, JA)

Application Number: 554020
Filing Date: 1975-02-28
Publication_date: 1976-03-02
Assignee: Research and Development Laboratories of Ohno Company Limited (JA)
Primary Class(es): 239/696 239/102.1, 347/47, 347/55
Other Classes:
US Patent Ref:

3656171	Apr, 1972	Robertson	239/15.
3700169	Oct, 1972	Naydan et al.	239/102.
3701476	Oct, 1972	Houser	239/15.
3776461	Dec, 1973	Kashio	239/15.
3848118	Nov, 1974	Rittberg	239/102.

Other Refs:
Primary Examiner: King, Lloyd L.
Assistant Examiner:
Attorney: Staas & Halsey