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    System and method for controlling print jobs in host based printers
    1.
    发明授权
    System and method for controlling print jobs in host based printers 有权
    用于控制基于主机的打印机中的打印作业的系统和方法

    公开(公告)号：US06795207B1

    公开(公告)日：2004-09-21

    申请号：US09632822

    申请日：2000-08-07

    申请人： John Booth Bates ,  Mark Walter Fagan ,  Richard Francis Russell

    发明人： John Booth Bates ,  Mark Walter Fagan ,  Richard Francis Russell

    IPC分类号： G06K1500

    CPC分类号： G06F3/1204 ,  G06F3/1205 ,  G06F3/1211 ,  G06F3/126 ,  G06F3/1274 ,  G06F3/1284 ,  G06F3/1285

    摘要： A system and method for controlling a print job in a printer, such as canceling the print job held in the printer. The system includes a printer having a processor that receives print jobs, including one or more print data swaths, from one or more host computers, and each print data swath includes at least a predefined group of characters. The system also has at least one host computer in communication with the printer and which selectively sends print jobs including print data and/or command data. The host computer further selectively sends a command which is a predetermined group of characters within the print data swath, and the command alters a function in the printer. The command is preferably a series of identical characters, such as NULL characters, and the command preferably causes the printer to enter a command mode to execute the commanded function. The inventive method of controlling print jobs includes the steps of sending a print job having one or more print data swaths from the host computer to the printer, sending a command embedded in a print data swath from the host computer to the printer, and altering a function of the printer with respect to the print job based upon the command received. The method preferably further includes the step of sending a message from the printer to the host computer once the function in the printer has been altered, such as the print job being purged, and to request the host computer to cease sending characters which comprise the command.

    摘要翻译： 一种用于控制打印机中的打印作业的系统和方法，例如取消打印机中保存的打印作业。 该系统包括具有处理器的打印机，该处理器从一个或多个主机计算机接收包括一个或多个打印数据条带的打印作业，并且每个打印数据条带至少包括预定义的一组字符。 该系统还具有与打印机通信的至少一个主计算机，并且选择性地发送包括打印数据和/或命令数据的打印作业。 主机还进一步选择性地发送作为打印数据范围内的预定字符组的命令，并且命令改变打印机中的功能。 该命令优选地是一系列相同的字符，例如NULL字符，并且该命令优选地使得打印机进入命令模式以执行命令的功能。 控制打印作业的本发明的方法包括以下步骤：将具有一个或多个打印数据条带的打印作业从主计算机发送到打印机，将从打印数据条带嵌入的命令从主计算机发送到打印机，以及更改 基于所接收的命令，打印机相对于打印作业的功能。 该方法优选地还包括一旦打印机中的功能被改变（例如打印作业被清除）并且要求主计算机停止发送包括命令的字符的消息从打印机发送到主计算机的步骤 。