A fiber processing machine includes a sliver drafting unit which has first and second adjoining roll assemblies each defining a nip through which a sliver runs in a sliver advancing direction. This method generates dot data representing a state of dot formation of the color dot and the transparent dot at each pixel based on the color dot recording rate table and the transparent dot recording rate table. The signal combiner is arranged to combine transmission signals supplied on each input connection to all of the four output connections using beam forming and phase adjustment, such that, in use, each supplied transmission signal generates a central beam polarized in the first orientation and a side beam polarized in the second orientation. A connection member is provided for transmitting the pivoting motion of the selector lever in the automatic shift gate to a coupling element to the automatic transmission. The extracted image data is subtracted from the image data set to remove striped blur components.