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热词
    • 4. 发明授权
    • Fixing device and image forming apparatus having such device
    • 具有该装置的固定装置和图像形成装置
    • US6035155A
    • 2000-03-07
    • US719081
    • 1996-09-24
    • Keigo KajiKensaku Kusaka
    • Keigo KajiKensaku Kusaka
    • G03G15/00G03G15/20G03G21/00H05B3/00H05B3/20
    • G03G15/2003G03G15/2039G03G15/205G03G2215/2016G03G2215/2038
    • A fixing device and an image forming apparatus having such a device is constructed by an unfixed image forming unit to form an unfixed image onto a recording material in accordance with start of an image formation, a heater in which a heat generating material which generates a heat by an energization is provided on a substrate, the unfixed image formed by the unfixed image forming unit being heated and fixed onto the recording material by a heat from the heater, and a power supplying unit for supplying an electric power to the heater in a first mode with a first maximum power by the start of the image formation and, subsequently, for supplying an electric power to the heater in a second mode with a second maximum power. The first maximum power is smaller than the second maximum power. In both of the first and second modes, the powers are controlled so that the heater is set to a predetermined temperature. When a predetermined time elapses from the start of the energization by the start of the image formation or when a temperature sensor detects a predetermined temperature of the heater, the operating mode is changed from the first mode to the second mode.
    • 具有这种装置的定影装置和图像形成装置由未定影的图像形成单元构成,以根据图像形成的开始在记录材料上形成未定影的图像;加热器,其中产生热量的发热材料 通过在基板上提供通电,由未定影图像形成单元形成的未定影图像通过来自加热器的热量被加热并固定到记录材料上;以及供电单元,用于以第一方式向加热器供电 模式,其通过图像形成开始时具有第一最大功率,并且随后用于以第二最大功率以第二模式向加热器供电。 第一最大功率小于第二最大功率。 在第一和第二模式中,控制功率以使加热器设定在预定温度。 当通过图像形成开始从通电开始经过预定时间时,或当温度传感器检测到加热器的预定温度时,操作模式从第一模式改变到第二模式。