Apparatus for forming image on plate and inter-sleeve raster scanning method

Apparatus for forming image on plate and inter-sleeve raster scanning method

  • CN 1,734,355 A
  • Filed: 06/28/2001
  • Published: 02/15/2006
  • Est. Priority Date: 06/30/2000
  • Status: Active Grant
First Claim
Patent Images

1. offset printing device comprises:

  • Be placed in the offset plate on the rotatable drum;

    AndBe used to make at least one device of offset plate imaging, described at least one device can be parallel to the cylinder axis of symmetry substantially and move with respect to offset plate;

    Described at least one device comprises n laser diode of a row, laser diode is used for making n picture point imaging from described at least one device that moves at rotary drum, make a laser diode among this row distribute to each i picture point, i is from { 1, Y chooses among the n}, becomes the axis of symmetry of spiral path wound drum, this n picture point separates by the space interval between the adjacent picture point 1, will be p by this spacing of arranging the site of laser diode imaging;

    But laser diode is the single tube laser diode of individual drive;

    Wherein, be that unit is measured with the spacing p in site, the space interval 1 between the adjacent picture point be the spacing p between the site integer m doubly;

    The number n of integer multiple m and picture point is a mutual prime rwmber.

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