An electrophotographic image forming apparatus in which a first developer material image and a second developer material image are printed one over the other on a surface of a page of a print medium, characterized by: an inputting section (106, 170) through which a user inputs one of a magnification ratio and a reduction ratio of the second developer material image that is to be printed on the print medium, the magnification ratio and the reduction ratio being in a first direction and in a second direction substantially perpendicular to the first direction; a data parser (103, 111) configured to perform parsing of print data; a magnification/reduction section (104, 112, 114) configured to produce the first developer material image and the second developer material image from the print data based on a result of the parsing of the print data, the magnification/reduction section (104, 112, 114) performing a variable magnification process in which the second developer material image is increased in size in accordance with the magnification ratio when the second developer material image is transferred and fixed before the first developer material image is transferred and fixed on the print medium, and a variable magnification process in which the second developer material image is decreased in size in accordance with the reduction ratio when the second developer material image is transferred and fixed after the first developer material image is transferred and fixed on the print medium, the first developer material image being formed by placing a plurality of developer material images of different developer materials, so that the plurality of developer material images being in contact with one another, and the second developer image being formed of a monochrome developer material other than the different developer materials; and an image forming section (105, 130) configured to transfer and fix the first developer material image and the second developer material image, which has been subjected to the variable magnification process, on the print medium so that the first developer material image and second developer material image are placed one over the other. an inputting section (106, 170) through which a user inputs one of a magnification ratio and a reduction ratio of the second developer material image that is to be printed on the print medium, the magnification ratio and the reduction ratio being in a first direction and in a second direction substantially perpendicular to the first direction; a data parser (103, 111) configured to perform parsing of print data; a magnification/reduction section (104, 112, 114) configured to produce the first developer material image and the second developer material image from the print data based on a result of the parsing of the print data, the magnification/reduction section (104, 112, 114) performing a variable magnification process in which the second developer material image is increased in size in accordance with the magnification ratio when the second developer material image is transferred and fixed before the first developer material image is transferred and fixed on the print medium, and a variable magnification process in which the second developer material image is decreased in size in accordance with the reduction ratio when the second developer material image is transferred and fixed after the first developer material image is transferred and fixed on the print medium, the first developer material image being formed by placing a plurality of developer material images of different developer materials, so that the plurality of developer material images being in contact with one another, and the second developer image being formed of a monochrome developer material other than the different developer materials; and an image forming section (105, 130) configured to transfer and fix the first developer material image and the second developer material image, which has been subjected to the variable magnification process, on the print medium so that the first developer material image and second developer material image are placed one over the other.