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    • 4. 发明授权
    • Printer head driving apparatus improving printing speed
    • 打印头驱动装置提高打印速度
    • US5581296A
    • 1996-12-03
    • US170069
    • 1993-12-17
    • Koji TanimotoKunihiko MiuraNaoaki Ide
    • Koji TanimotoKunihiko MiuraNaoaki Ide
    • B41J2/44B41J2/45B41J2/455H04N1/036B41J2/47B41J2/435
    • G06K15/1247B41J2/45
    • In a printer head constituted by a large number of linearly arranged LEDs, a lighting time designator receives image data at a period corresponding to one scanning period, designates a lighting time of each LED within one scanning period in accordance with image data corresponding to each LED and the lighting capacity of each LED, and outputs lighting time data. A lighting mode designator determines a lighting mode for designating a timing, within one scanning period, at which each LED is caused to emit light, on the basis of image data, and outputs lighting mode designation data. A light timing controller divides one scanning period into a plurality of time intervals and supplies the lighting time data to the printer head a plurality of number of times within one scanning period at the time intervals on the basis of the lighting mode designation data, thereby selectively causing the respective LEDs to emit light.
    • 在由多个线性排列的LED构成的打印机头中,照明时间指示器以对应于一个扫描周期的周期接收图像数据,根据与每个LED对应的图像数据在一个扫描周期内指定每个LED的点亮时间 和每个LED的照明容量,并输出点亮时间数据。 照明模式指示符基于图像数据确定用于指定使每个LED发光的一个扫描周期内的定时的点亮模式,并输出点亮模式指定数据。 光定时控制器将一个扫描周期分成多个时间间隔,并且基于点亮模式指定数据,以一定时间间隔在一个扫描周期内将点亮时间数据提供给打印头多次,从而选择性地 使各LED发光。
    • 5. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US4930087A
    • 1990-05-29
    • US230021
    • 1988-08-09
    • Jiro EgawaKoji TanimotoKunihiko Miura
    • Jiro EgawaKoji TanimotoKunihiko Miura
    • G06K15/00
    • G06K15/00G06K2215/0005G06K2215/0017G06K2215/0077Y10S347/90
    • An image forming apparatus has a printing side and a host side. Status signals are transmitted from the printing side to the host side and, according to the status signals, commands are transmitted from the host side to the printing side to execute printing operations. One exclusive line is added to status lines and used to inform the host side of changes in urgent statuses of the printing side.According to another aspect, an image forming apparatus has a printing side and a host side that transmits various data signals to the printing side. The printing side outputs a video clock signal whose frequencey changes in proportion to a recording density of the printing side. According to the video clock signal, the host side transmits a video data signal to the printing side.
    • 图像形成装置具有打印侧和主机侧。 状态信号从打印侧发送到主机侧,并且根据状态信号,从主机侧向打印侧发送命令以执行打印操作。 一条专用线被添加到状态线,用于通知主机侧打印方的紧急状态的变化。 根据另一方面,图像形成装置具有向打印侧发送各种数据信号的打印侧和主机侧。 打印面输出其频率与打印面的记录密度成比例地变化的视频时钟信号。 根据视频时钟信号,主机侧向打印面发送视频数据信号。