Optical fixing unit for thermosensitive recording paper

摘要

A xenon lamp is used as a light source of an optical fixing unit. A discharge stop switch for compulsorily stopping discharge of the xenon lump is provided. Further, a timer circuit for measuring a discharge time of the xenon lamp is provided. The timer circuit is activated after a predetermined time, which is set in advance, to stop the discharge of the xenon lamp. The inside of a printer is prevented from becoming a high-temperature state caused by ingredients of an infrared region of the xenon lamp. It is possible to improve efficiency of optical fixation.