Printing apparatus having high impact erasing mechanism

Details Printing apparatus having high impact erasing mechanism Printing apparatus having high impact erasing mechanism

1992-02-06

1992-12-15

Eickholt, Eugene H.

Typewriting machines

Means auxiliary to typewriting function

Means for correcting typing errors

101 9303, 310 14, 4001573, B41J 1160

Patent

active

051710943

ABSTRACT:
Upon operation of an erasure key for erasing a printed character, a correction ribbon is moved in an erasure position according to rotation of a motor, and then, the motor is continuously rotated forward at a current I2 larger than a current I1 in a print operation. Therefore, a print hammer is accelerated to a speed V2 higher than a speed V1 in the print operation, to strike a platen at the speed V2. In the erasing operation, no pressing operation is performed after the stroke. Rather, the print hammer is immediately returned and the ink is removed.

REFERENCES:
patent: 4480931 (1984-11-01), Kamikura et al.
patent: 4558965 (1985-12-01), Ueda et al.
patent: 4569607 (1986-02-01), Takemoto
patent: 4806030 (1989-02-01), Quaranti et al.
patent: 4995740 (1991-02-01), Kubayashi
patent: 5024545 (1991-06-01), Yoshimoto et al.
patent: 5028157 (1991-07-01), Kikugawa
patent: 5066150 (1991-11-01), Babler et al.

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