Typewriting machines – Including interposed inking device for record-medium – Ribbon – per se
Patent
1981-06-08
1986-08-05
Wright, Jr., Ernest T.
Typewriting machines
Including interposed inking device for record-medium
Ribbon, per se
400120, 428914, B41J 3109
Patent
active
046039864
ABSTRACT:
An ink projecting medium, such as a typewriter ribbon, having a carrier, with an array of spots each including an ink or other colorant and a vapor producing material, wherein the vapor producing material amplifies applied energy by chemical reaction to propel the ink from the carrier toward a receiving surface such as paper. In one embodiment, the ink and lead azide are provided in small, conical apertures in a polyethylene terepthalate carrier film and the lead azide is selectively detonated electrically to cause printing.
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IBM Technical Disclosure Bulletin, "Exothermic Laser Transfer Printing", Bruce et al., vol. 18, No. 12, May 1976, p. 4142.
Xerox Disclosure Journal, "Flash Transfer of Liquid Ink from a Back Screened Donor", Goffe, vol. 2, No. 3, May/Jun. 1977, p. 33.
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