A method for calibrating a printer that includes an LED printhead wherein the LEDs are arranged in a row in a series of arrays wherein each array includes a plurality of LEDs generally uniformly spaced a nominal pitch distance on the array in the direction of the row. The arrays have respective array...http://www.google.fr/patents/US5586055?utm_source=gb-gplus-shareBrevet US5586055 - Non-uniformity correction of an LED printhead
