Printer driving apparatus for line printer

Details Printer driving apparatus for line printer Printer driving apparatus for line printer

1993-03-22

1995-01-17

Wiecking, David A.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

4001201, B41J 230

Patent

active

053821017

ABSTRACT:
A printer driving apparatus for a line printer comprises: a measuring circuit to measure the number of print dots; and a driving circuit which can change drive timings of dots of a print head in correspondence to a print ratio in each print cycle. When the number of print dots is small, an interval between strobes is narrowed. When it is large, an interval between strobes is widened. Thus, a high-speed printing can be performed in the case of using the power source of the same capacity. When a high-speed printing is not required, the capacity of the power source can be reduced.

REFERENCES:
patent: 4623899 (1986-11-01), Sakakibara
patent: 4650348 (1987-03-01), Kaneko
patent: 4653940 (1987-03-01), Katsukawa
patent: 4765763 (1988-08-01), Ishikawa

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