Hand-held printing calculator

Details Hand-held printing calculator Hand-held printing calculator

1983-01-11

1986-09-02

Wright, Jr., Ernest T.

Typewriting machines

Pocket typewriter

400152, 400624, 400629, 400635, 400641, 400708, 101110, B41J 336

Patent

active

046092951

ABSTRACT:
A hand-held printing calculator for printing calculating results on elongated paper strips from a bundle of paper strips disposed within the calculator is provided. The calculator includes a microprinter having a paper feeding assembly including feeding elements disposed before and after the print position and in the same plane as the advancing paper for maintaining the paper flat during printing. In another embodiment of the invention, a detection sensor detects the absence of a paper strip at the print position for generating a signal for feeding the next paper strip so that paper is continuously fed to the print position.

REFERENCES:
patent: 994905 (1911-06-01), Burch
patent: 1182052 (1916-05-01), Stocking et al.
patent: 3124230 (1964-03-01), Bustamante
patent: 3430748 (1969-03-01), Parri
patent: 4040511 (1977-08-01), Beaven, Jr. et al.
patent: 4095686 (1978-06-01), Okabe
patent: 4143382 (1979-03-01), Brill et al.
patent: 4212456 (1980-07-01), Ruenzi
patent: 4258624 (1981-03-01), Mitsui
IBM Technical Disclosure Bulletin, "Wheel Printer", Bowdle, vol. 8, No. 10, Mar. 1966, p. 1432.
IBM Technical Disclosure Bulletin, "Sheet-Feed Sensing", Korte et al, vol. 20, No. 1, Jun. 1977, pp. 25-26.

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