Image forming apparatus, image forming method, and data recording medium

A method of forming an image, the method comprising

• forming, on a recording medium, a special-light responsive image that includes an image forming material including a special-light responsive image forming material that reacts to special light other than visible light and a special-light irresponsive image that includes an image forming material including the special-light responsive image forming material,
• wherein the special-light responsive image forming material of the special-light irresponsive image is less than the special-light responsive image forming material of the special-light responsive image,
• wherein the special-light irresponsive image is a prevention image that prevents visibility of the special-light responsive image, and
• wherein the prevention image and the special-light responsive image are overlaid on top of each other only at an edge face of the prevention image or an area within a prescribed range from the edge face of the prevention image and an edge face of the special-light responsive image or an area within a prescribed range from the edge face of the special-light responsive image.

A method of forming an image, the method comprising:

• forming, on a recording medium, a special-light responsive image that includes an image forming material including a special-light responsive image forming material that reacts to special light other than visible light and a special-light irresponsive image that includes an image forming material including the special-light responsive image forming material;
• forming a mixed image around the special-light responsive image, the mixed image including the special-light responsive image forming material less than the special-light responsive image forming material of the special-light responsive image and more than the special-light responsive image forming material of the special-light irresponsive image;
• and
• forming the special-light irresponsive image around the mixed image,
• wherein the special-light responsive image forming material of the special-light irresponsive image is less than the special-light responsive image forming material of the special-light responsive image.