Printer for producing uniformly spaced characters

Details Printer for producing uniformly spaced characters Printer for producing uniformly spaced characters

1980-02-15

1982-01-19

Sewell, Paul T.

Typewriting machines

Including selection of type-face by...

4001442, 400322, 400697, 400903, B41J 130, B41J 1930, B41J 2936

Patent

active

043113982

ABSTRACT:
A printer for use in an office machine having a keyboard and including a typing element carrying type faces of the characters to be printed and mounted on a carriage for displacement along a line printing path and being rotatable to bring a selected type face into a printing position, and a control device responsive to signals from the keyboard and operative, immediately after a type face is brought into the printing position and before printing of the associated character, for effecting rotation of the typing element in a predetermined direction over a path of predetermined length and then in the direction opposite to the predetermined direction and over a path of the same predetermined length. Similarly, when the office machine is equipped with a lift-off tape and a correction key for removing characters printed incorrectly, the control device is arranged to displace the carriage to a location one step removed from the location of the character to be removed in the normal line printing direction and, upon subsequent actuation of the correction key, to displace the carriage by a selected number of steps opposite to the line printing direction and then in the line printing direction by one less than the selected number of steps to the location of the character to be removed, prior to application of the type face to the carrier medium.

REFERENCES:
patent: 3306416 (1967-02-01), Dahlin et al.
patent: 3861512 (1975-01-01), Coriasco et al.
patent: 4030591 (1977-06-01), Martin et al.
patent: 4119384 (1978-10-01), Keiter

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