Electronic typewriter

Details Electronic typewriter Electronic typewriter

1984-04-09

1986-02-18

Burr, Edgar S.

Typewriting machines

For typing or forming continuous or discontinuous line

Including programmed-control-system

400 62, 364519, B41J 2926, B41J 312

Patent

active

045711003

ABSTRACT:
An electronic typewriter has a vertical tab key for printing one continuous vertical line, extending in a plurality of printing lines. By operating the vertical tab key, a control unit detects a set paper feed amount and feeds the paper reversely to a position whereat printing of a vertical line is done, in alignment with a vertical line printed in a previous printing line, thereby to print a continuous vertical line. The paper is fed forwards by an amount less than the unit length of vertical line which can be an amount less than a unit length of the vertical line as one character, and then the vertical line is printed. Such operations are repeated so that one vertical line continues from the vertical line of the previous printing line to the present printing line.

REFERENCES:
patent: 2944651 (1960-07-01), Malcolm et al.
patent: 3872959 (1975-03-01), Wang et al.
patent: 4140404 (1979-02-01), Kaenel
patent: 4311399 (1982-01-01), Wegryn et al.
IBM Tech. Disc. Bulletin, "Tapeless Carriage Control", Kerr et al, vol. 13, No. 3, Aug. 1970, pp. 657-658.
IBM Tech. Disc. Bulletin, "Adapter for Half-Line Space Control", Heath, vol. 19, No. 5, Oct. 1976, pp. 1539-1541.
IBM Tech. Disc. Bulletin, "Bidirectional Multiple-Pitch Automatic Word Underscore", Horst et al, vol. 21, No. 10, Mar. 1979, p. 3910.
IBM Tech. Disc. Bulletin, "Optimization of Underscoring and Overstriking Operations in Word-Processing Printers", Daniels et al, vol. 26, No. 8, Jan. 1984, p. 4374.
IBM Tech. Disc. Bulletin, "Printing Underscore Characters and Storing Representations Thereof", vol. 21, No. 6, Nov. 1978, pp. 2392-2393.
IBM Tech. Disc. Bulletin, "Uniform Word Underscoring in Proportionality Spaced Printer", vol. 22, No. 6, Nov. 1979, pp. 2178-2182.

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