A printer is provided having a carrier, a printhead having a plurality of nozzles, at least one of the nozzles being rotationally displaced relative to the carrier, and a controller for determining and communicating print data to the nozzles. The controller is configured to determine the rotational displacement,...http://www.google.fr/patents/US7980647?utm_source=gb-gplus-shareBrevet US7980647 - Printer having nozzle displacement correction