Patent ID: 7030897

Claim:
A photo printer comprising: image forming means for forming an image by heating a roll paper having a plurality of thermally coloring layers on which images are formed at different heating temperatures, and fixed by lights having different wavelengths depending on the heating temperatures; image fixing means for fixing the image by applying a light to the roll paper on which the image is formed by the image forming means; wherein the image fixing means includes; an outside portion of cylindrical shape for accommodating an image forming area of the roll paper along an inner wall of the image fixing means, the outside portion having partly a notch; light radiating means including a plurality of line light sources for radiating a light having a wavelength in accordance with an image to be fixed, the plurality of line light sources being disposed at the positions substantially the same as a central axis of the outside portion of cylindrical shape along the central axis; light intercepting means for intercepting light from the light radiating means, the light intercepting means provided near the notch; and conveyance assisting means for leading the roll paper along the inner wall.