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    Print wire fire control mechanism for a wire matrix printer
    2.
    发明公开
    Print wire fire control mechanism for a wire matrix printer 失效
    丝线矩阵打印机的打印线消防控制机制

    公开(公告)号：EP0226388A3

    公开(公告)日：1988-02-10

    申请号：EP86309407

    申请日：1986-12-03

    申请人： International Business Machines Corporation

    发明人： Malkemes, Charles David ,  Cavill, Barry Richard

    IPC分类号： B41J03/12

    CPC分类号： B41J2/30

    摘要： The present invention relates to a wire matrix printer of the type comprising
    a printhead (42) including a plurality of print wires (44) for printing dots,
    means for moving the printhead across a print receiving medium,
    means for detecting the position of each print wire relative to the print receiving medium as the printhead moves across the print receiving medium,
    means for establishing a plurality of target positions (45, 46) on the print receiving medium in each of which a dot is to be printed,
    firing means for selectively firing each print wire so that it causes a dot to be printed on the print receiving medium, and
    a print wire fire control mechanism for controlling the operation of the firing means so that each selected print wire prints a dot in a predetermined target position on the print receiving medium. A printer according to the invention is characterised in that the print wire fire control mechanism comprises
    means for calculating the flight time distance (FTD) through which the printhead will move during the time interval between the time each selected print wire is fired and the time the selected print wire will cause a dot to be printed, and
    control means for firing each selected print wire when the distance between the selected print wire and a predetermined target position (TD) is substantially equal to the flight time distance (FTD).

    Arrangement for monitoring and controlling the extent and direction of movement of a forms feed assembly in a printer sub-system cooperating with a data processing system
    5.
    发明公开
    Arrangement for monitoring and controlling the extent and direction of movement of a forms feed assembly in a printer sub-system cooperating with a data processing system 失效
    对于其中与数据处理系统协作的打印机子系统监视和控制形式进给装置的进给距离和方向的配置。

    公开(公告)号：EP0027561A1

    公开(公告)日：1981-04-29

    申请号：EP80105778.7

    申请日：1980-09-25

    申请人： International Business Machines Corporation

    发明人： Cavill, Barry Richard ,  Steup, Robert Bruce

    IPC分类号： G06K15/16 ,  G06F9/06

    CPC分类号： G06K15/16

    摘要： The arrangement according to the invention is provided with facilities for detecting emitter changes that have occurred during operating intervals. In a typical operation, a microprocessor (210) initiates a command to a moving assembly (170), such as a forms feed assembly, then once the operation is initiated the microprocessor transfers to other responsibilities, meanwhile periodically checking the status of the forms feed assembly. The forms feed assembly supplies emitter signals to the processor which are utilized by the microprocessor to determine whether or not any emitter changes have occurred during the intervals between the checking operations. The microprocessor has a stored data table and logic responsive to emitter signal conditions that had previously occurred (WAS) and that is further responsive to emitter signals that are presently occurring (IS) to supply an output in numbers of emitters indicative of both the extent and direction of movement of the assembly during the intervening interval.

    摘要翻译： 该布置gemäß的发明是设置有用于检测发射的变化期间操作区间thathave发生设施。 在一个典型的外科手术中，微处理器（210）启动的命令，一个移动组件（170）：如一个形式一旦手术开始微处理器转移到其他责任馈送组件，然后，同时定期检查形式进料的状态 装配。 形式进料组件供应发射信号给由微处理器确定性矿是否是在检查操作之间的发射极的间隔所发生的改变所利用的处理器。 微处理器具有响应于发射器信号的条件的存储的数据表，并逻辑并以前发生（WAS）并做进一步响应于发射器信号并是目前存在的（IS）在输出中表示这两个范围的发射器的数量以供应和 居间间隔期间组件的运动的方向。