To shorten a time for processing to generate outlines at axial symmetric figures.

An imaging system is constituted which has a mirror ring information conversion part 3 for expressing axial symmetric images by mirror ring information, a printer device driver 2 for generating as a printer language, information necessary for generating printing data, an interpreter part 7 for analyzing the printer language, a mirror ring image development 10 for developing to images, information on images converted to the mirror ring information by the mirror ring information conversion part 3, an image development 8 for developing the printer language to image data based on analysis information at the interpreter 7, and an image recording part 9 for recording images by printing image data.