Dot printer with changeable quality dot pattern

Details Dot printer with changeable quality dot pattern Dot printer with changeable quality dot pattern

1991-03-18

1992-09-22

Wiecking, David A.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

400279, 340735, B41J 2485

Patent

active

051492121

ABSTRACT:
In a dot printer having a print head, a moving mechanism for laterally reciprocating the print head relative to a recording medium, a driving circuit for driving the print head, a memory for storing basic dot patterns, and a controller for reading a basic dot pattern from the memory that corresponds to input data, a printing pattern is produced by processing the basic dot pattern and controlling the moving mechanism and the driving circuit according to the printing dot pattern to print the data on the recording medium. A reference dot pattern is produced by replicating n vertical lines of the same dot arrangement as that of the dot lines of the basic dot pattern. The controller produces the printing dot pattern by omitting m dots following the head dot of each dot line, and each successive remaining dot, of the reference dot pattern consisting of successive dots.

REFERENCES:
patent: 4650348 (1987-03-01), Kaneko
patent: 4653940 (1987-03-01), Katsukawa
patent: 4891634 (1990-01-01), Ina
patent: 5020927 (1991-06-01), Niikawa

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