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    • 16. 发明授权
    • Thermal transfer video printer having improved temperature correction
function of coloring density
    • 热转印视频打印机具有改善着色密度的温度校正功能
    • US5142302A
    • 1992-08-25
    • US720329
    • 1991-06-25
    • Hiroshi Kano
    • Hiroshi Kano
    • B41J2/36B41J2/365
    • B41J2/36B41J2/365
    • A sublimation type thermal transfer color video printer generates a heating pulse having a duration corresponding to the tone level of the pixel to be printed, according to the data in a reference tone table stored in a memory, to energize the corresponding heating element of a thermal heat during the duration. The tone table includes a variable data which is the basis of determining the duration of the first energizing pulse required up to right before the coloring of a recording paper, and a fixed data which are the bases of determining the durations of subsequent energizing pulses. A variable value multiplied by these fixed data is set in a separate register. The variable data in the tone table and the variable value in the register are rewritten according to change in temperature of the thermal head.
    • 根据存储在存储器中的参考色调表中的数据,升华型热转印彩色视频打印机产生具有与要打印的像素的色调电平相对应的持续时间的加热脉冲,以激励热对应的加热元件 持续时间内发热。 色调表包括作为确定在记录纸着色之前直到需要的第一激励脉冲的持续时间的基础的可变数据,以及作为确定随后的激励脉冲持续时间的基础的固定数据。 乘以这些固定数据的可变值被设置在单独的寄存器中。 色调表中的可变数据和寄存器中的变量值根据热敏头的温度变化而被重写。