In a printing apparatus, in which normal printing occurs in a print zone through which a print media is moved by an input feed roller arrangement and an output overdrive roller arrangement, the desired speed of the print media is maintained during bleed printing in the margin of the print media by altering the drive parameters of at least one of the roller arrangements. The method includes reading status data from a page buffer and detecting a location of a bad cell from the status data. Methods for administrating pharmaceutically acceptable compositions comprising a lipid and imexon or a derivative thereof for the treatment of diseases, such as cancer, are also disclosed herein. In one embodiment, the beams are modulated by a set of apodization functions to reduce side lobes caused by the narrowing of the apertures of the beam as well as transducer heating by reducing the average energy deposited in each transducer element. The contact region can extend around at least a portion of the perimeter of the workpiece.