Character erasable printing apparatus

Details Character erasable printing apparatus Character erasable printing apparatus

1987-06-10

1989-03-07

Pieprz, William

Typewriting machines

Means auxiliary to typewriting function

Means for correcting typing errors

400 63, B41J 2926

Patent

active

048101214

ABSTRACT:
A printing apparatus including an erasing mechanism capable of erasing a misprinted character or character string by utilizing a correction ribbon, a well as a reprint control means capable of reprinting the character or character string erased by mistake is disclosed.
In order to realize reprint with a simple operation, a simple memory and a simple control, an erase data memory storing the erased data and the reprint control means were disposed besides the erasing mechanism.
The reprint control means reprints the characters including the following the character to which a print head is corresponding among the erased character string at respective position from there previously erased, or reprints all characters of the character string corresponding to the print head at the position from there previously erased, or reprints only the lastly erased character string at a specified position or the position from there previously erased, or when a print character is at a reprint position. reprints after automatically erasing such print character.

REFERENCES:
patent: 3780846 (1973-12-01), Kolpek et al.
patent: 4480931 (1984-11-01), Kamikura et al.
patent: 4492485 (1985-01-01), Gall
patent: 4561793 (1985-12-01), Blanchard
patent: 4580241 (1986-04-01), Kucera
patent: 4678351 (1987-07-01), Curley

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