An image formation device includes a matrix formation circuit, a pixel identification circuit, a binarization processing circuit, a halftone processing circuit, and a synthesizing circuit. The matrix formation circuit forms a data matrix window successively shifting. The pixel identification circuit determines whether an objective pixel is a binary or a halftone by determining whether each of the pixel signals in the data matrix window is a binary or a halftone. If the objective pixel is determined to be a binary, the binarization processing circuit processes the objective pixel signal. If the objective pixel is determined to be a halftone, the halftone processing circuit processes the objective pixel signal. These objective pixel signals are synthesized to form the image signal fed into a laser printing system.