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    Printhead, printhead driving method, and data output apparatus
    2.
    发明公开
    Printhead, printhead driving method, and data output apparatus 有权
    打印头，打印头的控制方法，和数据输出装置

    公开(公告)号：EP1128324A3

    公开(公告)日：2004-03-24

    申请号：EP01300791.9

    申请日：2001-01-30

    申请人： CANON KABUSHIKI KAISHA

    发明人： Hayasaki, Kimiyuki, c/o Canon Kabushiki Kaisha

    IPC分类号： G06K15/10 ,  B41J2/05

    CPC分类号： B41J2/04541 ,  B41J2/04543 ,  B41J2/04546 ,  B41J2/0458 ,  G06K15/102

    摘要： A printhead is disclosed, which can speed up transfer of image data and driving of printing elements without increasing the number of signal lines and connection terminals. An image data signal (DATA) supplied to the printhead has a 4-bit bus format containing block selection data in its head. This signal is separated by a selection signal (SEL), and only the block selection data contained in the head is held in a latch (4) and supplied to a decoder (5). The 4-bit image data corresponding to the four subsequent segments are respectively held in the four latches of a first printing control unit (8).

    Control method for printing apparatus
    4.
    发明公开
    Control method for printing apparatus 有权
    打印设备的控制方法

    公开(公告)号：EP1387311A3

    公开(公告)日：2004-12-08

    申请号：EP03017355.3

    申请日：2003-07-31

    申请人： CANON KABUSHIKI KAISHA

    发明人： Hayasaki, Kimiyuki, c/o Canon Kabushiki Kaisha

    IPC分类号： G06K15/10 ,  B41J2/00

    CPC分类号： B41J2/04525 ,  B41J2/04543 ,  B41J2/04563 ,  B41J2/0458 ,  B41J2/04591 ,  G06K15/10 ,  G06K15/1803 ,  G06K15/1805

    摘要： In a printing apparatus which performs printing by using a printhead having a printing element unit for performing printing and a memory , the control circuit of the printing apparatus main body outputs a command for acquiring specific information from information held by the memory block. Upon reception of this command, the command control unit of a carriage control unit generates an access signal containing an address for reading out information designated by the command from the memory block. The command control unit accesses the memory block by the access signal, and acquires specific information corresponding to the command from the memory block.

    摘要翻译： 在通过使用具有用于执行打印的打印元件单元和存储器的打印头执行打印的打印设备中，打印设备主体的控制电路从存储块保持的信息输出用于获取特定信息的命令。 在接收到该命令时，托架控制单元的命令控制单元生成访问信号，该访问信号包含用于从存储器块读出由该命令指定的信息的地址。 命令控制单元通过访问信号访问存储器块，并且从存储器块获取与命令对应的特定信息。