专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06215511B1 Optical writing head driving device 失效
标题翻译：光写头驱动装置
公开(公告)号：US06215511B1
公开(公告)日：2001-04-10
申请号：US09102398
申请日：1998-06-22
申请人： Makoto Asako , Kenji Takano , Kazutaka Otsuka , Yutaka Ichimura , Yukio Akita , Yoshiyuki Matsuoka , Kozoh Satoh , Tsutomu Kobayashi
发明人： Makoto Asako , Kenji Takano , Kazutaka Otsuka , Yutaka Ichimura , Yukio Akita , Yoshiyuki Matsuoka , Kozoh Satoh , Tsutomu Kobayashi
IPC分类号： B41J245
CPC分类号： G06K15/1247 , H04N1/1931 , H04N1/506
摘要： A printer controller 41 sets compensation values, representing the positional deviations of LED array chips 31, in a delay circuit section 68 via shift register 61 and a latch circuit 63. The shift register 69 sequentially acquires bit map data from the printer controller 41, and supplies the acquired bit map data to an AND gate 66 through the latch circuit 62. Upon receiving a strobe signal from the printer controller 41, the delay circuit section 68 supplies the received strobe signal to the AND gate 66 after a delay time corresponding to a preset compensation value has lapsed. The AND gate 66 generates drive signals each being the logical product of the input bit map data and the strobe signal, and supplies them to the LED array chips 31 through a buffer 67. The LED array chips 31 make LEDs emit light at the timings corresponding to the positional deviations so that images are formed without a positional deviation. At least one of the LED array chips is unaligned with adjacent ones of the LED array chips and preset compensation values are obtained by interpolation based on detected positional deviations of sampled ones of the LED array chips.
摘要翻译：打印机控制器41通过移位寄存器61和锁存电路63将表示LED阵列芯片31的位置偏差的补偿值设置在延迟电路部分68中。移位寄存器69从打印机控制器41顺序地获取位图数据，通过锁存电路62将获取的比特图数据提供给与门66.一旦从打印机控制器41接收到选通信号，延迟电路部分68将接收到的选通信号提供给与门66，延迟时间对应于预设补偿值已经失效。与门66产生各自为输入位图数据和选通信号的逻辑积的驱动信号，并通过缓冲器67将它们提供给LED阵列芯片31.LED阵列芯片31使LED在对应的定时发光到位置偏差，使得形成没有位置偏差的图像。至少一个LED阵列芯片与相邻的LED阵列芯片不对齐，并且通过基于检测到的LED阵列芯片中的采样的位置偏差的内插来获得预设的补偿值。

IPRDB

热门服务

关于我们

友情链接

联系方式