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    • 2. 发明授权
    • Fixing apparatus and image forming apparatus provided therewith
    • 固定装置和图像形成装置
    • US07603069B2
    • 2009-10-13
    • US11685244
    • 2007-03-13
    • Shinji YamanaKenji AsakuraToshiaki KagawaHiroyuki Yamaji
    • Shinji YamanaKenji AsakuraToshiaki KagawaHiroyuki Yamaji
    • G03G15/20
    • G03G15/2064G03G2215/2016G03G2215/2019
    • In a fixing apparatus and an image forming apparatus of the present invention, an external heating section is provided that includes: an external heating belt; two heat rollers suspending the external heating belt and pressed against a fixing roller via the external heating belt; and a release/contact mechanism for causing the two heat rollers to separate from or contact with the fixing roller. With the heat rollers separated from the fixing roller by the release/contact mechanism, the external heating belt and the fixing roller are in contact with each other and the external heating belt follows rotation of the fixing roller. As a result, a fixing apparatus is provided that includes an external release/contact mechanism that can quickly operate in a small space and at low power without encouraging deterioration of the belt member. An image forming apparatus provided with such a fixing apparatus is also provided.
    • 在本发明的定影装置和图像形成装置中,提供外部加热部,其包括:外部加热带; 两个热辊将外部加热带悬挂并经由外部加热带压靠在定影辊上; 以及用于使两个热辊与定影辊分离或与定影辊接触的释放/接触机构。 由于通过释放/接触机构与定影辊分离的热辊,外部加热带和定影辊彼此接触,并且外部加热带随着定影辊的旋转。 结果,提供一种定影装置,其包括外部释放/接触机构,其可以在小的空间和低功率下快速地操作,而不会促使带部件的劣化。 还提供了一种设置有这种定影装置的图像形成装置。
    • 3. 发明授权
    • Image forming apparatus having fixing device with external heater
    • 具有外部加热器的固定装置的图像形成装置
    • US07684746B2
    • 2010-03-23
    • US11683480
    • 2007-03-08
    • Kenji AsakuraHiroyuki Yamaji
    • Kenji AsakuraHiroyuki Yamaji
    • G03G15/20
    • G03G15/2032G03G2215/2016G03G2215/2019
    • Support rollers suspending an endless belt are arranged so that a distance between each support roller and a fixing roller is smaller than a height of a belt regulating member provided on each side of the support roller in moving the support rollers to the second position which allows the endless belt to be in contact with the fixing roller so that a contact area therebetween is smaller than in the first position. As a result, in a fixing apparatus which includes the regulating member for regulating a position of an external heating belt in a rotational axis direction so that a contact area size between the external heating belt and the fixing member is variable, it is possible to appropriately vary the contact area between the belt and the fixing material.
    • 布置悬挂环形带的支撑辊被布置成使得每个支撑辊和定影辊之间的距离小于在将支撑辊移动到第二位置时设置在支撑辊的每一侧上的带调节构件的高度, 环形带与定影辊接触,使得它们之间的接触面积小于第一位置。 结果,在包括用于调节外部加热带在旋转轴线方向上的位置使得外部加热带和固定构件之间的接触面积大小可变的调节构件的定影装置中,可以适当地 改变了皮带和固定材料之间的接触面积。
    • 5. 发明申请
    • FIXING APPARATUS AND IMAGE FORMING APPARATUS
    • 固定装置和图像形成装置
    • US20070212094A1
    • 2007-09-13
    • US11683480
    • 2007-03-08
    • Kenji ASAKURAHiroyuki Yamaji
    • Kenji ASAKURAHiroyuki Yamaji
    • G03G15/20
    • G03G15/2032G03G2215/2016G03G2215/2019
    • Support rollers suspending an endless belt are arranged so that a distance between each support roller and a fixing roller is smaller than a height of a belt regulating member provided on each side of the support roller in moving the support rollers to the second position which allows the endless belt to be in contact with the fixing roller so that a contact area therebetween is smaller than in the first position. As a result, in a fixing apparatus which includes the regulating member for regulating a position of an external heating belt in a rotational axis direction so that a contact area size between the external heating belt and the fixing member is variable, it is possible to appropriately vary the contact area between the belt and the fixing material.
    • 布置悬挂环形带的支撑辊被布置成使得每个支撑辊和定影辊之间的距离小于在将支撑辊移动到第二位置时设置在支撑辊的每一侧上的带调节构件的高度, 环形带与定影辊接触,使得它们之间的接触面积小于第一位置。 结果,在包括用于调节外部加热带在旋转轴线方向上的位置使得外部加热带和固定构件之间的接触面积大小可变的调节构件的定影装置中,可以适当地 改变了皮带和固定材料之间的接触面积。
    • 7. 发明授权
    • Image forming apparatus and recording medium on which interrupt control program is recorded
    • 记录中断控制程序的图像形成装置和记录介质
    • US07890008B2
    • 2011-02-15
    • US12542758
    • 2009-08-18
    • Hiroyuki Yamaji
    • Hiroyuki Yamaji
    • G03G15/20
    • G03G15/2039
    • An image forming apparatus is provided having a fixing device which heats a fixing roller from the surface thereof by means of an external heating device, which image forming apparatus is capable of improving fixability immediately just after a start-up and enhancing a job efficiency. An image forming apparatus includes a toner image forming section, a transfer section, a fixing device, and an interrupt control section. At least two levels are set as a job interrupt reference temperature, the interrupt control section individually selects, from among the at least two levels of job interrupt reference temperature, the level to be used for either or both of a job immediately after the start-up from a power-on and a job immediately after a return from a sleep mode, and the level(s) for other job(s), and carries out an interrupt control using the selected level of job interrupt reference temperature.
    • 提供一种图像形成装置,其具有通过外部加热装置从其表面加热定影辊的定影装置,该图像形成装置能够在启动之后立即改善定影性并提高作业效率。 图像形成装置包括调色剂图像形成部,转印部,定影装置和中断控制部。 至少两个级别被设置为作业中断参考温度,中断控制部分从工作中断参考温度的至少两个级别中分别选择要用于紧接启动后的作业中的任一个或两者的级别, 从睡眠模式返回后立即从开机和工作开始,以及其他作业的级别,并使用所选择的作业中断参考温度级别执行中断控制。