A method for controlling a wind turbine with a rotor and at least one rotor blade, and a control unit are disclosed. The method involves printing or otherwise depositing elongated nanostructures in a carrier solution. The top of the stack remains open to replenish the media stack without interrupting printing operations. A load data selection unit reads recording setting data corresponding to a fingerprint image having a similarity value reaching or exceeding a predetermined value if the fingerprint image is held in the data holding unit, and reads certain data prepared in advance if not.