Method and apparatus for correction of non-impact printing

Details Method and apparatus for correction of non-impact printing Method and apparatus for correction of non-impact printing

1980-12-22

1983-06-28

Wright, Jr., Ernest T.

Typewriting machines

Means auxiliary to typewriting function

Means for correcting typing errors

400120, 400466, B41J 2916

Patent

active

043902979

ABSTRACT:
A method and apparatus for correction of non-impact printed material which is formed by depositing a thermoplastic marking material on the print sheet. The method and apparatus uses a correction tape or ribbon comprising a substrate which carries a pressure transferable pigmented material on one face. The correction ribbon is positioned between the erroneously printed character and a correction device which is actuated to produce sufficient pressure to move the correction ribbon into intimate contact with the erroneously printed character, and the pigmented material is transferred selectively only to the character area to cover the erroneously printed character, so that the correct character can then be printed. In an alternate embodiment, the correction device is actuated concurrently with a backspace operation.

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patent: 4203677 (1980-05-01), Hatsell
patent: 4247210 (1981-01-01), Kacmarcik et al.
patent: 4268181 (1981-05-01), Decker
patent: 4302118 (1981-11-01), Schaefer

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