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    • 22. 发明授权
    • 24핀 도트 매트릭스 프린터의 헤드 구동회로
    • 用于24针DOT矩阵打印机的头驱动电路
    • KR1019930010458B1
    • 1993-10-25
    • KR1019900007544
    • 1990-05-24
    • 삼성전자주식회사
    • 오재성
    • B41J29/38
    • The head driving circuit for a 24-pin dot-matrix printer includes: a bus buffer buffering control data of delay data and first and second selection signal, and two strings of bit data, a control register for latching the control data, a data register for latching the bit data, first and second registers for selectively inputting one string of the bit data according to the first selection signal and latching it with a clock, and first and second selective output portions for selecting the one string of bit data output from the first register or the one string of bit data output from the second register according to the second selection signal, thereby easily controlling the driving of head pins in changing printing speed, printing quality or printing direction and reducing the waiting time at the end of a line.
    • 用于24针点阵打印机的头驱动电路包括:总线缓冲器缓冲延迟数据和第一和第二选择信号的控制数据,以及两串比特数据,用于锁存控制数据的控制寄存器,数据寄存器 用于锁存位数据,第一和第二寄存器,用于根据第一选择信号选择性地输入一个位数据串,并用时钟锁存;以及第一和第二选择输出部分,用于选择从该数据输出的一串位数据 第一寄存器或根据第二选择信号从第二寄存器输出的一串位数据串,从而容易地控制头引脚在改变打印速度,打印质量或打印方向时的驱动,并减少线路末端的等待时间 。