Drive system for a thermal label printer
    3.
    发明授权
    Drive system for a thermal label printer 失效
    用于热敏标签打印机的驱动系统

    公开(公告)号:US5608443A

    公开(公告)日:1997-03-04

    申请号:US333392

    申请日:1994-11-02

    CPC分类号: B41J11/44 B41J33/34 B41J35/36

    摘要: A label printing apparatus receives a cassette holding printing tape on which an image is to be printed. The apparatus also has a printing mechanism which includes a thermal printhead having a group of printing elements to which pixel data defining the image to be printed is passed sequentially on a group-by-group basis. The groups are printed adjacent one another in the direction of movement of the printing tape. A drive system is provided for driving the printing tape through the printing mechanism end includes a dc motor which is provided with a shaft encoder for monitoring the speed of rotation of the motor. Sequential printing of the groups of pixel data is controlled in dependence on the monitors speed of rotation of the motor. There is also described a label printing apparatus which uses monitoring of the speed of rotation of the motor to detect an end of tape condition.

    摘要翻译: 标签打印设备接收要在其上打印图像的盒式磁带保持打印带。 该设备还具有打印机构,该打印机构包括具有一组打印元件的热打印头,定义要打印的图像的像素数据将逐个逐个地依次通过。 这些组在打印带的移动方向上彼此相邻地打印。 提供驱动系统用于通过打印机构端驱动打印带,其包括直流电动机,该直流电动机设置有用于监测电动机的转速的轴编码器。 根据监视器的转速来控制像素数据组的连续打印。 还描述了一种标签打印设备,其使用电动机的旋转速度的监视来检测磁带条件的结束。

    Apparatus and method for printing characters utilizing stored algorithms
    4.
    发明授权
    Apparatus and method for printing characters utilizing stored algorithms 失效
    使用存储算法打印字符的装置和方法

    公开(公告)号:US5585829A

    公开(公告)日:1996-12-17

    申请号:US349756

    申请日:1994-12-05

    摘要: An apparatus and method for printing characters that minimizes the information that needs storage for each character that can be printed. The apparatus according to the invention uses a storage device containing font data for the characters and identifiers which identify an algorithm to be used for recreating the character. A processor coupled to the storage device generates pixel data for printing based on the stored font data, an identifier, and one of multiple

    摘要翻译: 一种用于打印字符的装置和方法,其最小化可以打印的每个字符需要存储的信息。 根据本发明的装置使用包含用于识别要用于重新创建字符的算法的字符和标识符的字体数据的存储装置。 耦合到存储设备的处理器基于存储的字体数据,标识符和多个之一生成用于打印的像素数据

    Alignment of imprints
    5.
    发明授权
    Alignment of imprints 有权
    印记对齐

    公开(公告)号:US06409297B1

    公开(公告)日:2002-06-25

    申请号:US09493669

    申请日:2000-01-28

    IPC分类号: B41J2938

    摘要: A method of controlling operation of a print head to align imprints printed by the print head in two traverses in opposite directions is disclosed. The print head includes a row of printing elements that are operated selectively in a plurality of print cycles to print each imprint. Upon completion of printing a first imprint, signals corresponding to motion of the print head step the count of a counter. The stepping of the counter is terminated when the print head passes a reference position. During a reverse traverse of the print head, stepping of the counter is initiated when the print passes the reference position and operation of the print head to print a second imprint is initiated when the count reaches a predetermined count.

    摘要翻译: 公开了一种控制打印头的操作以使由打印头打印的印记在相反方向上的两个横移中的操作的方法。 打印头包括在多个打印周期中选择性地操作以打印每个印记的一行打印元件。 在完成打印第一印记时,对应于打印头的运动的信号将计数器的计数。 当打印头通过参考位置时,计数器的踏板终止。 在打印头的反向移动期间,当打印通过参考位置时启动计数器的步进,并且当计数达到预定计数时,启动打印头的打印第二印记的操作。