In a system and a method for calibrating turn-on energy of a fluid-ejecting marking device, a reference object and a plurality of test objects are contemporaneously printed by the marking device on a same type of substrate. The reference object is printed at a known “on” voltage at a first pattern...http://www.google.de/patents/US7510259?utm_source=gb-gplus-sharePatent US7510259 - Calibrating turn-on energy of a marking device
