Typewriting machines – Type-bar-action mechanism or type-face on type-bar or... – Ink-impregnated type-face or inker for type-face
Patent
1987-10-16
1990-01-16
Sewell, Paul T.
Typewriting machines
Type-bar-action mechanism or type-face on type-bar or...
Ink-impregnated type-face or inker for type-face
400188, 400662, B41J 312, B41J 2702
Patent
active
048939528
ABSTRACT:
This invention relates to an improved dot matrix-type printing system wherein the wires of the print head are arranged to impinge on the reverse side of the workpiece to cause it to be moved into contact with a cavitated ink transfer roller, whereby, the workpiece is brought into direct contact with ink droplets carried by the caves in the cavitated surface in such a fashion as to create a symbolic array on the frontside of the workpiece. Secondary embodiments utilize finely apertured belt means and a source of ink disposed inside of said belt with the workpiece being impinged into contact with the ink carrying belt means.
REFERENCES:
patent: 1938371 (1933-12-01), Bottle
patent: 3260193 (1966-07-01), Mann
patent: 4335971 (1982-06-01), de Mey
patent: 4458399 (1984-07-01), Kessler
patent: 4522672 (1985-06-01), Brister et al.
T. E. Schall and W. H. Swart, "Platen Inking Back Printer", IBM Technical Disclosure Bulletin, vol. 21, No. 9, (Feb. 1979), p. 3729.
T. E. Cassada and D. A. Kightlinger, "Electrochemical Printer", IBM Technical Disclosure Bulletin, vol. 24, No. 8, (Jan. 1982), p. 4332.
Bell & Howell Company
Sewell Paul T.
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