A receiver in which the sneaking noise from a crystal oscillator is reduced. The apparatus has a source configured to emit coherent light of multiple wavelengths. Upon detecting a region containing a background image level that adjoins an image object having pixel values in a range other than a range of limit values, the antialiasing filter sets the pixel values of the edge or border pixels of the image object to substantially the same value. This enables a variation of clearances between the wires and the nozzles to be reduced and the sealant to be uniformly applied. The arched planar element can have a nearly form stable embodiment, made from wood, a polymeric material, such as a reinforced polymer or light metal. The methods are selectively enabled to perform branch prediction.