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    • 24. 发明授权
    • Image forming apparatus with fan cooling
    • 具有风扇冷却功能的成像设备
    • US5647727A
    • 1997-07-15
    • US439376
    • 1995-05-11
    • Akihiko TaniguchiMasashi Toyoda
    • Akihiko TaniguchiMasashi Toyoda
    • G03B27/52G03G21/20F04B49/10
    • G03G21/206
    • In an image forming apparatus provided with a cooling fan for cooling an original table glass, a controller measures a cooling time from the end of a previous copying operation to the start of a current copying operation. An operating condition determining section estimates a residual amount of heat energy based on the measured time and the generated amount of heat energy at the pervious copying operation. An amount of heat energy to be generated at the current image forming is added to the thus estimated residual amount of heat energy. Based on the sum of the heat energy, actual temperature-rise characteristics are calculated. The fan is driven at a rotating rate for an operating time in accordance with the thus calculated temperature-rise characteristics.
    • 在设置有用于冷却原稿台玻璃的冷却风扇的图像形成装置中,控制器测量从先前复印操作结束到当前复印操作开始的冷却时间。 操作条件确定部基于所测量的时间和所产生的热能的量来估计剩余的热能量。 在当前图像形成时将产生的热能的量加到如此估计的剩余热能量上。 基于热能的总和,计算实际的温升特性。 根据这样计算的温升特性,风扇以转速驱动运行时间。