1. An image recording device comprising: select means for selecting either a photo-sensitive paper or a plain paper as a recording medium; light-shield image forming means for forming a provisional image with light-shield materials; monochrom image forming means for forming a monochrom image on said plain paper by transferring said light-shield image onto said plain paper if said plain paper is seleced as the recording medium by said select means; and color image forming means for forming a color image on said photo-sensitive paper by exposing said light-shield image onto said photo-sensitive paper if said photo-sensitive paper is selected as the recording medium.