| 摘要 |
PURPOSE:To prevent a recording image from deteriorating by providing a transparent plate which impedes air from flowing between a light source and an information light output terminal for outputting write light. CONSTITUTION:The opening part of a housing body 6 on the side of a convergent image forming element 3 is closed with a transparent plate 11 and a heat insulation plate 10 is fitted so as to open and close the upper part of the housing body 6. The opening part of the housing body 6 on the side of the convergent image forming element 3, on the other hand, is closed with the transparent plate 11, so even when the upper part of the housing body 6 is open, air is made by a fan 8 to flow through the hole 7a of a cover 7, so toner is never scattered. The heat insulation plate 10 is moved by a mechanism which uses a motor and a transmission mechanism or a solenoid, or by obtaining a driving force from the rotary motion of a photosensitive body through an electromagnetic clutch. Consequently, the recording image is prevented from deteriorating. |
