Thermal printing control circuit
    1.
    发明授权
    Thermal printing control circuit 失效
    热敏打印控制电路

    公开(公告)号:US4878065A

    公开(公告)日:1989-10-31

    申请号:US236808

    申请日:1988-08-26

    CPC分类号: B41J2/3555 B41J2/355

    摘要: A thermal printing control circuit includes a first shift register for receiving and storing a series of serial printing image data to be printed by a plurality of thermal print elements, a second register, constituted by a plurality of registers for storing contents of the first shift register by parallelly and sequentially shifting and receiving the contents thereof, for storing printing history data of a plurality of cycles of the thermal print elements, and a logic circuit for performing a logic operation by using the printing history data of the plurality of cycles of the plurality of thermal print elements, the printing history data being stored in the second shift register, and externally supplied control timing signals and for generating drive signals representing voltage waveforms to be applied to the plurality of thermal print elements.