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    Printer having circuit for providing improved printing quality
    3.
    发明公开
    Printer having circuit for providing improved printing quality 失效
    Druckgerätmit einer Schaltung zur Verbesserung derDruckqualität。

    公开(公告)号：EP0521491A2

    公开(公告)日：1993-01-07

    申请号：EP92111166.2

    申请日：1992-07-01

    申请人： Oki Electric Industry Co., Ltd.

    发明人： Tanuma, Jiro, c/o Oki Electric Ind. Co., Ltd. ,  Ito, Katsuyuki, c/o Oki Electric Ind. Co., Ltd. ,  Katakura, Shinichi, c/o Oki Electric Ind. Co., Ltd ,  Wakasugi, Nobuo, c/o Oki Electric Ind. Co., Ltd ,  Nagaoka, Kazuhiko, c/o Oki Electric Ind. Co., Ltd ,  Ito, Toshikazu, c/o Oki Electric Ind. Co., Ltd

    IPC分类号： G03G15/00 ,  H04N1/40 ,  H04N1/18 ,  G06K15/12

    CPC分类号： G06K15/1247 ,  G06K15/1266 ,  G06K2215/111

    摘要： Bit data of the received video signal is partially converted into a first signal representing a data sequence corresponding to a resolution of an LED head (19 in FIG. 1). The first signal is transmitted to the LED head in the form of a real printing data signal to be printed on a basic raster line in synchronism with a line timing signal. The remaining bit data of the received video signal, which are not converted into the first signal, are converted into a second signal representing of another data sequence, and then stored in a line buffer (55 in FIG. 7). The second signal stored in the line buffer is in turn transmitted to the LED head in the form of a real printing data signal to be printed on the additional raster line in synchronism with an additional line timing signal. LED head drive energy with which the the basic raster lines are printed and another LED head drive energy with which the additional raster lines are printed are set independently of each other. The LED head may be provided with such a resolution function.

    摘要翻译： 接收到的视频信号的位数据被部分地转换成表示与LED头（图1中的19）的分辨率对应的数据序列的第一信号。 第一信号以与行定时信号同步的要打印在基本光栅线上的真实打印数据信号的形式发送到LED头。 未转换为第一信号的接收到的视频信号的剩余位数据被转换为表示另一数据序列的第二信号，然后存储在行缓冲器（图7中的55）中。 存储在行缓冲器中的第二信号又以实际打印数据信号的形式传送到LED头，以与额外的线定时信号同步地印在附加光栅线上。 基本光栅线被印刷的LED头驱动能量和附加光栅线被印刷的另一个LED头驱动能量彼此独立地设置。 LED头可以具有这样的分辨率功能。