System and method for ink jet printhead detection
    2.
    发明授权
    System and method for ink jet printhead detection 有权
    喷墨打印头检测系统和方法

    公开(公告)号:US07128385B2

    公开(公告)日:2006-10-31

    申请号:US10880904

    申请日:2004-06-30

    IPC分类号: B41J29/393 B41J29/38

    CPC分类号: B41J2/17546

    摘要: The invention provides a system and method for detecting the presence of an ink jet printhead when a printhead controller fails to properly identify an installed printhead using a printhead identification device. The system includes a printhead including heater resistors and control elements, and a controller connected to the printhead via address and data lines. When the controller fails to properly identify an installed printhead, the controller operates to bias the control elements in a predetermined manner via at least one address line, detect a signal via the data lines, and generate a signal indicative of the presence of the installed printhead.

    摘要翻译: 本发明提供了一种当打印头控制器不能使用打印头识别装置正确识别所安装的打印头时,用于检测喷墨打印头的存在的系统和方法。 该系统包括一个包括加热电阻和控制元件的打印头,以及通过地址和数据线连接到打印头的控制器。 当控制器无法正确识别安装的打印头时,控制器操作以经由至少一个地址线以预定方式偏置控制元件,经由数据线检测信号,并产生指示安装的打印头的存在的信号 。