Method and apparatus for imaging a seamless print medium
    2.
    发明授权
    Method and apparatus for imaging a seamless print medium 失效
    用于成像无缝打印介质的方法和装置

    公开(公告)号:US5868075A

    公开(公告)日:1999-02-09

    申请号:US807017

    申请日:1997-02-26

    摘要: A plate imaging apparatus and method for imaging a seamless printing member preferably loaded onto a rotating plate cylinder. The plate imaging apparatus moves a writing head in fixed increments in an axial direction relative to the plate cylinder. With the writing head fixed at a first axial position, the imaging apparatus causes a circumferential swath to be imaged onto the seamless printing member commencing from a first starting point. With the plate cylinder still rotating, the imaging apparatus then steps the writing head to the next axial position, thereby defining a second starting point once the writing head is ready to resume imaging that is offset from the first starting point. The imaging apparatus then causes a second circumferential swath to be imaged onto the seamless printing member commencing from the second starting point.

    摘要翻译: 一种用于对无机印刷部件进行成像的板成像装置和方法,其优选地装载到旋转印版滚筒上。 平板成像装置相对于印版滚筒在轴向上以固定的增量移动书写头。 在书写头固定在第一轴向位置的情况下,成像装置使得圆周条纹从第一起始点成像到无缝打印构件上。 当印版滚筒仍然旋转时,成像装置然后将写入头移动到下一个轴向位置,从而在写入头准备好恢复与第一起始点偏移的成像之后限定第二起始点。 然后,成像装置使第二周向条纹从第二起始点成像到无缝打印部件上。

    Drive circuits for spark-discharge imaging apparatus
    3.
    发明授权
    Drive circuits for spark-discharge imaging apparatus 失效
    用于火花放电成像装置的驱动电路

    公开(公告)号:US5134428A

    公开(公告)日:1992-07-28

    申请号:US640966

    申请日:1991-01-14

    IPC分类号: B23H1/02 B23H9/06

    摘要: Electrode-driver circuits for use with non-contact spark-discharge imaging systems. The circuits rapidly produce short-duration, high-voltage pulses that cause the discharge of a spark to the surface of a printing plate; they feature short rise times, rapid operation and clean decays, thereby facilitating high-speed spark-discharge imaging.

    摘要翻译: 用于非接触式火花放电成像系统的电极驱动电路。 电路快速产生短暂的高电压脉冲,使脉冲放电到印版的表面; 它们具有短的上升时间,快速的操作和清洁的衰减,从而促进高速火花放电成像。