Printer driving apparatus for line printer

B - Operations – Transporting – 41 – J

Patent

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Details

B41J 5/30 (2006.01) B41J 2/355 (2006.01) B41J 2/505 (2006.01) B41J 2/51 (2006.01) B41J 2/515 (2006.01)

Patent

CA 2049219

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.

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