| 摘要 |
<p>The invention discloses laser-induced colour printing with means which determine the printing colour in a microcapsule on which the laser beam (12) impinges. These means are a fluorescence transformer material which is a constituent of the contents of the microcapsules (3) or an additonal white light beam with which the printing colour in an individual microcapsule (3) is likewise identified. Printing is effected when a printing command given for a definite position with release of ink coincides with the instantaneous impact of the scanning laser beam (12) on a microcapsule (3) for which this printing colour has been identified as present.</p> |
