Printer with area defined and character defined erasing patterns

Details Printer with area defined and character defined erasing patterns Printer with area defined and character defined erasing patterns

1989-12-28

1992-07-07

Wiecking, David A.

Typewriting machines

Means auxiliary to typewriting function

Means for correcting typing errors

400 63, B41J 2936

Patent

active

051277530

ABSTRACT:
A document processing apparatus comprises an element for editing input character data an element for recording and outputting the input or edited character data, and an element for erasing the recorded and output character data. A plurality of different erasing systems are provided for the erasing element. The optimum erasing system is selected from the plurality of different erasing systems of the erasing element in accordance with predetermined processing conditions of the apparatus. The recorded and output character data is erased. The optimum erasing system can be selected in accordance with the printing system of the recorded characters, dot density, presence or absence of the character data in the memory, and presence of superimposed characters so that the low electric power consumption and the optimum erasing quality can be realized.

REFERENCES:
patent: 4545693 (1985-10-01), Bartlett
patent: 4572687 (1986-02-01), Croley
patent: 4728209 (1988-03-01), Kumamoto
patent: 4749289 (1988-06-01), Sugiura

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