A thermal transfer material includes a support. A release layer is overlaid on the support. A coloring transfer layer is overlaid on the release layer, has thermoplasticity, and is colorable by being exposed and then pressurized. In a printer for use with the thermal transfer material, an image is formed by exposing the coloring transfer layer. The coloring transfer layer is placed on image receiving material after the image is formed. The thermal transfer material is heated and pressurized while the coloring transfer layer is placed on, so as to color the image and transfer the coloring transfer layer to the image receiving material.