Printing apparatus with a thermal print head

Details Printing apparatus with a thermal print head Printing apparatus with a thermal print head

1986-07-28

1987-09-22

Pearson, Charles A.

Typewriting machines

Typing by other than type-face or type-die

Thermal

400578, 400719, 219216, 346 76PH, 427411, 134122R, B41J 300, D21H 122

Patent

active

046951733

ABSTRACT:
A printing apparatus for printing on a sheet of paper via a thermal ribbon has a paper feeding device for feeding the sheet of paper; a thermal print head including heat generating elements which are held in pressed contact with the surface of the sheet of paper via the thermal ribbon, the heat generating elements being selectively energized to apply heat to an ink layer of the thermal ribbon to fuse the ink for adherence of the fused ink to the surface of the paper; and a smoothness improving device, disposed upstream of the thermal print head in the direction of feed of the sheet of paper by the paper feeding device, for improving the smoothness of the surface of the paper.

REFERENCES:
patent: 3917048 (1975-11-01), Riley
patent: 3968679 (1976-07-01), Ralbursky
patent: 4140907 (1979-02-01), Oba
patent: 4165029 (1979-08-01), Mitchell
patent: 4173420 (1979-11-01), Okabe
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patent: 4322044 (1982-03-01), Bilek
patent: 4434637 (1984-03-01), Bailey
patent: 4470055 (1984-09-01), Todoh
Xerox Disc. Jour., "Wrinkle Control Rolls", Wong et al., vol. 8, No. 4, Jul./Aug. 1983, pp. 289-290.
IBM Tech. Disc. Bulletin, "Wrinkle Eliminator for Continuous Roll Paper Feed", vol. 26, No. 4, Sep. 1983, pp. 1841-1842.
IBM Tech. Dscl. Bulletin, "Web-Tension Sensing Devices", Buchholz et al., vol. 25, No. 4, Sep. 1982, pp. 2066-2067.
IBM Tech. Dscl. Bulletin, "Tape Tension Detection", Dang et al., vol. 26, No. 6, Nov. 1983, pp. 2990-2991.

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