Printhead apparatus, printer system and method of printhead built-in test
    24.
    发明授权
    Printhead apparatus, printer system and method of printhead built-in test 有权
    打印头设备,打印机系统和打印头内置测试方法

    公开(公告)号:US08882237B2

    公开(公告)日:2014-11-11

    申请号:US13978915

    申请日:2011-01-25

    IPC分类号: B41J29/393 G06K15/02

    CPC分类号: B41J29/393 G06K15/1894

    摘要: A printhead apparatus, an inkjet printer system, and a method of built-in test employ a test flag transmitted through a data channel of a printhead. The apparatus includes a plurality of printheads, a data register at each printhead, and a status channel. Each printhead has a unidirectional data channel (UDC) to provide data to the printhead. The data register detects proper reception of a test flag received by the printhead through the UDC. The status channel reports printhead status information including whether or not proper reception of the test flag was detected by the data register. The system includes the apparatus and a controller to generate the test flag and receive the printhead status information. The method includes sending a test flag, and verifying proper reception thereof.

    摘要翻译: 打印头装置,喷墨打印机系统和内置测试方法采用通过打印头的数据通道传输的测试标志。 该装置包括多个打印头,每个打印头处的数据寄存器和状态通道。 每个打印头都有一个单向数据通道(UDC),用于向打印头提供数据。 数据寄存器通过UDC检测打印头接收到的测试标志的正确接收。 状态通道报告打印头状态信息,包括数据寄存器是否检测到测试标志的正确接收。 该系统包括该装置和一个产生测试标志并接收打印头状态信息的控制器。 该方法包括发送测试标志,并验证其正确的接收。