Setting variable character width in matrix printer

Details Setting variable character width in matrix printer Setting variable character width in matrix printer

1990-08-24

1992-02-18

Wiecking, David A.

Typewriting machines

Carriage or carriage-moving or movement-regulating mechanism

For varying carriage feed

400121, B41J 1932

Patent

active

050888471

ABSTRACT:
When a specified head energizing pulse interval involves a decimal fraction, the fraction is accumulated at every printing, and when the cumulative value of the fraction is smaller than one pulse, a printing head is driven at a pulse interval of an integer part obtained by subtracting the fraction, and when the cumulative value of the fraction has reached one pulse, the printing head is driven at a pulse interval of an integer obtained by adding one pulse to the above head energizing pulse interval.

REFERENCES:
patent: 4459431 (1984-07-01), Hiroichi et al.
patent: 4556332 (1985-12-01), Maekawa
patent: 4591969 (1986-05-01), Bloom
patent: 4653940 (1987-03-01), Katsukawa
patent: 4655622 (1987-04-01), Aoki
patent: 4737924 (1988-04-01), Miki
patent: 4776713 (1988-10-01), Takahashi et al.
patent: 4844635 (1989-07-01), Malkemes
I.B.M. Technical Disclosure Bulletin, vol. 28, No. 10, Mar. 1986, 4332-4336.

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