发明名称 DOT MATRIX PRINTER
摘要 PURPOSE:To uniformize the use frequency between dot printing parts such as wire pins by providing a counting processing part counting the respective operations of a plurality of dot printing parts constituting a printing head one at a time and integrating the number of times of the respective operations to apply the integrated data. CONSTITUTION:When the one dot row data of a line buffer are latched tree times by one dot by a dot row data latch 4, a printer control CPU 1 supplies printing data to 24 pin corresponding impact counters 7 of a printing head impact number-of-time measuring part 6 while divides the same into three bites. At this time, each pin corresponding impact number-of-time counter 7 renews its own count value by +1 when printing data are printing execution data. By this method, the printing head impact number-of-time measuring port 6 executes the above mentioned processing from one dot row immediately before a printing head 5 starts printing to one dot row immediately before the finish of printing.
申请公布号 JPH0238055(A) 申请公布日期 1990.02.07
申请号 JP19880186922 申请日期 1988.07.28
申请人 HITACHI LTD 发明人 EMURA NORIO;MUTO ISAMU
分类号 B41J2/255;B41J2/485 主分类号 B41J2/255
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