Patent ID: 8016408

Claim:
A printing device comprising: a liquid spraying head unit configured and arranged to spray a photo-curable liquid to a printing medium; and a light radiation head unit configured and arranged to radiate curing light rays to the photo-curable liquid sprayed on the printing medium to cause the photo-curable liquid to be cured, the light radiation head unit including a light emitting body configured and arranged to emit the curing light ray, the light emitting body being arranged on a light source arrangement surface extending non-parallel to the printing medium, a reflector configured and arranged to reflect the curing light ray emitted from the light emitting body toward the photo-curable liquid sprayed on the printing medium, the reflector being arranged on a reflector arrangement surface facing the light source arrangement surface and extending non-parallel to the printing medium, an auxiliary reflector disposed adjacent to the reflector, and configured and arranged to reflect at least one of the curing light ray emitted from the light emitting body and light reflected by the reflector toward the photo-curable liquid sprayed on the printing medium, and a rectangular parallelepiped member having an emission port that faces the printing medium, the light source arrangement surface being disposed adjacent to an inside of a first side surface of the rectangular parallelepiped member, the reflector arrangement surface being disposed adjacent to an inside of a second side surface of the rectangular parallelepiped member facing the first side surface, and the auxiliary reflector being arranged on third and fourth side surfaces of the rectangular parallelepiped member extending between the first and second side surfaces.