Four−side−rimless copying that no margins develop during printout when the image of an original is captured by an image scanner and printed by a printer. The image scanner captures the image of a scan region (263) some larger than the original (262). Next, an image processing circuit enlarges the image of the scan region (266) (arrow 279) to form an enlarged image (271). The enlarged image (271) shows the enlargement of the image of the original (262) up to an image (273) some larger than a printing paper (274). Finally, a printer prints out the enlarged original image (273) inside this enlarged image (271) on the printing paper.