| 摘要 |
PURPOSE:To obtain a small-sized and lightweight device, to reduce cost and to save energy by integrately forming a pulley in a body with a self-cooled fan provided on a rotation shaft of a main motor, and driving a heat exhaust fan of the body by the pulley through a rotary belt. CONSTITUTION:A self-cooled fan 6 is fixed to the output terminal of a main motor 5, and the self-cooled fan 6 and a pulley 6a are integrally formed in a body. The pulley 6a rotates only during rotation of the main motor, that is, only during copying operation, and a pulley 6b is driven through a belt 9 and thereby, a fan shaft 2a of the fan 2 is rotated. The fan 2 is also used for absorbing ozone produced during copying. Further, a controlling device 11 that makes time delay control to keep rise of temperature in the device caused by continuation of nearly fixed temperature after temperature rise of a heat roller 1a within an allowable temperature range. Thus, the device can be obtained in small-sized and lightweight, cost is lowered, and energy can be saved. |
