Methods and apparatuses for sensing rotational position of a component in a printing device
    2.
    发明授权
    Methods and apparatuses for sensing rotational position of a component in a printing device 有权
    用于感测打印装置中的部件的旋转位置的方法和装置

    公开(公告)号:US07126107B2

    公开(公告)日:2006-10-24

    申请号:US10389644

    申请日:2003-03-14

    IPC分类号: G01D5/34 G01J9/00

    CPC分类号: G01D5/366

    摘要: An encoder and related methods for use in a printing device indexing system are provided. In some embodiments, the system comprises a feedroller or other component configured to index media through a printing device, and an encoder disk is coupled to the feedroller. In these embodiments, the system includes a reflective optical detector having a transmitter and a receiver provided adjacent a first surface of the encoder disk, the reflective optical detector being configured to detect the passage of the home position mark as the encoder disk rotates by the reflection of radiation off of the first surface. Also provided in some embodiments are methods for setting a counter to correspond with the home position of a rotatable element by utilizing threshold signal levels.

    摘要翻译: 提供了一种用于打印设备分度系统的编码器和相关方法。 在一些实施例中,系统包括馈送器或被配置为通过打印装置索引介质的其它部件,并且编码器盘耦合到馈送器。 在这些实施例中,该系统包括反射光学检测器,该反射光学检测器具有邻近编码器盘的第一表面设置的发射器和接收器,该反射光学检测器被配置为当编码器盘旋转时检测原始位置标记的通过 的第一表面的辐射。 在一些实施例中还提供了通过利用阈值信号电平来设置计数器以对应于可旋转元件的原始位置的方法。