Patent ID: 6414703
Filing Date: 2002-07-02
Classification: B41J,H01J

Abstract:
A thermal printer comprising:a thermal head which carries out a heating process on a thermal recording paper provided with color forming layers for performing color formation in a plurality of different colors; and a light fixing device which fixes images formed on the thermal recording paper by the heating process; wherein the light fixing device comprises: a hot cathode fluorescent lamp having a fluorescent tube that has a fluorescent coating applied to an inside surface of a glass tube and inside which are sealed mercury and noble gases, filament electrodes provided at both ends of the fluorescent tube, and lead wires that supply power to the filament electrodes; and a magnetic circuit that is provided on a side surface of the fluorescent tube and that generates a magnetic field that acts on current that flows through the fluorescent tube when power is fed to the filament electrodes.