Impact printer with printing pressure setting

Details Impact printer with printing pressure setting Impact printer with printing pressure setting

1992-09-30

1993-08-24

Eickholt, Eugene H.

Typewriting machines

Including control of format by programmed-control-system

101 9303, 395148, B41J 1144

Patent

active

052383121

ABSTRACT:
For the line determined by a line feed determining portion 2 to be fed greatly, for the line determined by the line feed determining portion 2 to be fed small and further determined by a printing density determining portion 3 to be printed with a low printing density and, for the line determined by the line feed determining portion 2 to be fed small, determined by the printing density determining portion 3 to be printed with a high density and whose preceding adjacent line is low in printing density, a printing pressure setting portion 4 sets a normal printing pressure. For the line determined by the line feed determining portion 2 to be fed small, determined by the printing density determining portion 3 to be printed with a high printing density and whose preceding adjacent line is high in printing density, the printing pressure setting portion 4 sets a low printing pressure. In consequence, a high density printing cannot be repeated on the same area of the printing form with a high pressure with the result that it can be prevented for wrinkles or breakage to occur on the printing form.

REFERENCES:
patent: 4683817 (1987-08-01), Del Signore
patent: 4774882 (1988-10-01), Ohsawa et al.
patent: 4810113 (1989-03-01), Itoh et al.
patent: 5039238 (1991-08-01), Kikuchi et al.
patent: 5048984 (1991-09-01), Kringe et al.
patent: 5092692 (1992-03-01), Ueda et al.

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