METHOD OF EXPOSING A PRINTING FORM

摘要

A method is presented of exposing a printing form (30), using a number of exposure channels (310) arranged in a two- dimensional array (38), the exposure channels of a column of the array effecting an input of energy for an image element (20) on the printing form, which is to be moved relative to the exposure channels. A first row (324) of the array of exposure channels is activated to produce a first component of the input of energy associated with each column of the array in one row of image elements. The method according to the invention is distinguished by the fact that a second row (326) of the array is activated to produce a second component of the input of energy associated with each column of the array when the point of projection (314) of the exposure channel of a second row of the array comes to lie on the image element (20) of the row already exposed by the exposure channel of the first row and the same column. This advantageously shortens the time needed to expose the printing form.