Multi-jet ink printer using star-wheel jet formers

Details Multi-jet ink printer using star-wheel jet formers Multi-jet ink printer using star-wheel jet formers

1976-04-02

1977-09-06

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

101DIG13, 118659, 346153, G01G 1516

Patent

active

040471853

ABSTRACT:
A multi-jet ink printer comprises a drum having rows of pointed jet formers, or prongs, mounted about its outside surface. The drum is successively rotated such that the tips of the prongs are dipped into a reservoir of ink and thereafter pointed toward a recording carrier, such as paper. When the prongs are directed toward the carrier, an electrostatic field is established between the drum and electrodes located on the opposite side of the carrier. The ink is thereby caused to leave the sharp points and form ink jets composed of very small droplets of ink. The ink is thereby deposited on the carrier. There is an electrode located opposite each prong which is selectively energized to produce dots on the carrier when the prong is in selected positions relative to the carrier. In this respect, the drum is moved axially (horizontally) to scan rows on the carrier, and the carrier is moved longitudinally (vertically) to scan vertically on the carrier.

REFERENCES:
patent: 3052213 (1962-09-01), Schaffert
patent: 3330683 (1967-07-01), Simm
patent: 3341859 (1967-09-01), Adams
patent: 3375528 (1968-03-01), Klausons
Damm, E. P.; A Self-Fixing Ink For Non-Mechanical Printing; IBM Tech. Disc. Bulletin, vol. 3, No. 9, Feb. 1961, p. 8.

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