Patent ID: 6798437
Filing Date: 2004-09-28
Classification: B41J

Abstract:
A method for imaging a printing form using an imaging device containing a laser diode bar having a number n of individually controllable laser diodes, imaging spots of activated laser diodes from the n laser diodes lying in a row on the printing form, at least one laser diode on the laser diode bar not capable of being activated so that the laser diode bar has a maximum number m of activatable laser diodes of the n laser diodes with neighboring imaging spots on the printing form having a distance a, the method comprising the steps of:increasing a relative speed between the imaging device and the printing form by a factor f, where f>1 and f&lE;n and f is a real number; shortening an exposure time per printing dot by the factor 1/f; and imaging using the m activatable laser diodes to input in each case an amount of energy per printing dot on the printing form with an imaging intensity, the imaging intensity being a function of the exposure time and of the amount of energy per printing dot.