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    Fixing device and image forming apparatus using same
    5.
    发明授权
    Fixing device and image forming apparatus using same 有权
    固定装置和使用其的成像装置

    公开(公告)号：US08929752B2

    公开(公告)日：2015-01-06

    申请号：US12837917

    申请日：2010-07-16

    申请人： Yoshihide Ohta ,  Kazunori Bannai ,  Kohta Takenaka ,  Hidehiko Fujiwara

    发明人： Yoshihide Ohta ,  Kazunori Bannai ,  Kohta Takenaka ,  Hidehiko Fujiwara

    IPC分类号： G03G15/20 ,  G03G15/00

    CPC分类号： G03G15/55 ,  G03G15/2039 ,  G03G15/70

    摘要： A fixing device for fixing an unfixed toner image on a recording medium includes a rotatable fixing member heated by a heater to contact the recording medium bearing the unfixed toner image while rotating, with the heater disposed inside a hollow of the fixing member and turned on and off intermittently at a start of a fixing process to heat the fixing member intermittently, a first pressing member disposed opposite the fixing member to press against and rotate the fixing member to define a fixing nip through which the recording medium passes to fix the unfixed toner image with heat and pressure, and a temperature detector to detect a change in the temperature of the fixing member when the heater turns on and off intermittently. When the temperature detector detects the change in the temperature of the fixing device, the heater is turned on continuously.

    摘要翻译： 用于将未定影的调色剂图像定影在记录介质上的定影装置包括：可旋转的固定构件，其被加热器加热，以在旋转时接触带有未定影调色剂图像的记录介质，其中加热器设置在定影构件的中空部内并打开， 在定影处理开始时间歇地断开，间歇地加热固定构件;第一按压构件，其与固定构件相对设置，以压靠和旋转固定构件，以限定定影夹持部，记录介质通过该定影夹持件固定未定影的调色剂图像 以及温度检测器，用于当加热器间歇地打开和关闭时检测固定构件的温度变化。 当温度检测器检测到定影装置的温度变化时，加热器连续打开。

    Fixing device and image forming apparatus including same
    7.
    发明授权
    Fixing device and image forming apparatus including same 有权

    公开(公告)号：US08428498B2

    公开(公告)日：2013-04-23

    申请号：US12379233

    申请日：2009-02-17

    申请人： Hidehiko Fujiwara ,  Kazunori Bannai

    发明人： Hidehiko Fujiwara ,  Kazunori Bannai

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2064 ,  G03G2215/2035

    摘要： A fixing device includes a fixing member, a pressure member, a contact member, and a heater. The fixing member is provided in a width direction of a recording medium and to heat and fuse a toner image on the recording medium. The pressure member is to press against the fixing member. The contact member is provided inside the fixing member and to contact the pressure member through the fixing member to form a nip portion between the pressure member and the fixing member. The heater includes a heating element and is to heat the contact member. The heating element of the heater is a mold member of a relatively thin plate extending in a width direction of the fixing member and includes a flat surface that faces the contact member. An image forming apparatus for forming an image includes the fixing device.

    Fixing device, image forming apparatus incorporating same, and method of dimensioning fixing device
    8.
    发明授权
    Fixing device, image forming apparatus incorporating same, and method of dimensioning fixing device 有权
    固定装置，结合其的图像形成装置以及尺寸定影装置的方法

    公开(公告)号：US08428480B2

    公开(公告)日：2013-04-23

    申请号：US12926044

    申请日：2010-10-22

    申请人： Kohta Takenaka ,  Kazunori Bannai ,  Yu Wakabayashi ,  Toshihiro Shimada ,  Hidehiko Fujiwara

    发明人： Kohta Takenaka ,  Kazunori Bannai ,  Yu Wakabayashi ,  Toshihiro Shimada ,  Hidehiko Fujiwara

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2039 ,  G03G2215/2035

    摘要： A fixing device includes a fixing member, a pressing member, a temperature detector, and a heater. The pressing member contacts an outer circumferential surface of the fixing member to form a fixing nip between the fixing member and the pressing member through which a recording medium bearing a toner image passes. The heater heats the fixing member to a predetermined temperature based on a detection result provided by the temperature detector. A circumferential distance A between the temperature detector and the heater along a circumference of the fixing member is defined by the following formula: A≧v×(T1+T2) where v is a circumferential velocity of the fixing member rotating in a predetermined direction of rotation, T1 is a response time of the temperature detector, and T2 is a response time of the heater.

    摘要翻译： 定影装置包括固定构件，按压构件，温度检测器和加热器。 按压构件接触固定构件的外周面，以在固定构件和按压构件之间形成定影夹持物，通过该按压构件支承调色剂图像的记录介质通过。 加热器基于由温度检测器提供的检测结果将定影构件加热到预定温度。 温度检测器和加热器之间沿着固定部件圆周的周向距离A由下列公式确定：A> = v×（T1 + T2）其中v是固定部件沿预定方向旋转的圆周速度 的旋转，T1是温度检测器的响应时间，T2是加热器的响应时间。

    Fixing device and image forming apparatus using same having a second heater outside the recording medium passing area
    9.
    发明授权
    Fixing device and image forming apparatus using same having a second heater outside the recording medium passing area 失效
    使用该固定装置的图像形成装置在记录介质通过区域之外具有第二加热器

    公开(公告)号：US08346106B2

    公开(公告)日：2013-01-01

    申请号：US12843299

    申请日：2010-07-26

    申请人： Kohta Takenaka ,  Kazunori Bannai ,  Hidehiko Fujiwara

    发明人： Kohta Takenaka ,  Kazunori Bannai ,  Hidehiko Fujiwara

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2053 ,  G03G15/2039 ,  G03G2215/2035

    摘要： A fixing device includes a fixing member including a recording medium passing area inside thereof through which the recording medium passes, a first heater disposed in the fixing member to heat the fixing member, a first pressing member disposed opposite the fixing member to press against and rotate the fixing member to fix the unfixed toner image on the recording medium, a second heater disposed outside the recording medium passing area and inside the fixing member to heat the fixing member cyclically in a given cycle of heating, a temperature detector to detect a change in the temperature of the fixing member when the fixing member is cyclically heated by the second heater, and a determination unit to evaluate a condition of rotation of the fixing member based on the cycle of heating by the second heater and the cycle of change in the temperature detected by the temperature detector.

    摘要翻译： 定影装置包括固定构件，该固定构件包括记录介质通过的记录介质通过区域，设置在固定构件中以加热固定构件的第一加热器，与固定构件相对设置的第一加压构件，以压靠和旋转 固定构件，用于将未定影的调色剂图像固定在记录介质上，第二加热器设置在记录介质通过区域的外部和固定构件内部，以在给定的加热循环中循环加热固定构件;温度检测器， 固定构件通过第二加热器循环加热时的固定构件的温度，以及基于第二加热器的加热循环和温度变化循环来评价定影构件的旋转状态的判定单元 由温度检测器检测。

    FIXING DEVICE AND IMAGE FORMING APPARATUS USING SAME
    10.
    发明申请
    FIXING DEVICE AND IMAGE FORMING APPARATUS USING SAME 失效
    使用相同的固定装置和图像形成装置

    公开(公告)号：US20110020018A1

    公开(公告)日：2011-01-27

    申请号：US12843299

    申请日：2010-07-26

    申请人： Kohta TAKENAKA ,  Kazunori Bannai ,  Hidehiko Fujiwara

    发明人： Kohta TAKENAKA ,  Kazunori Bannai ,  Hidehiko Fujiwara

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2053 ,  G03G15/2039 ,  G03G2215/2035

    摘要： A fixing device includes a fixing member including a recording medium passing area inside thereof through which the recording medium passes, a first heater disposed in the fixing member to heat the fixing member, a first pressing member disposed opposite the fixing member to press against and rotate the fixing member to fix the unfixed toner image on the recording medium, a second heater disposed outside the recording medium passing area and inside the fixing member to heat the fixing member cyclically in a given cycle of heating, a temperature detector to detect a change in the temperature of the fixing member when the fixing member is cyclically heated by the second heater, and a determination unit to evaluate a condition of rotation of the fixing member based on the cycle of heating by the second heater and the cycle of change in the temperature detected by the temperature detector.

    摘要翻译： 定影装置包括固定构件，该固定构件包括记录介质通过的记录介质通过区域，设置在固定构件中以加热固定构件的第一加热器，与固定构件相对设置的第一加压构件，以压靠和旋转 固定构件，用于将未定影的调色剂图像固定在记录介质上，第二加热器设置在记录介质通过区域的外部和固定构件内部，以在给定的加热循环中循环加热固定构件;温度检测器， 固定构件通过第二加热器循环加热时的固定构件的温度，以及基于第二加热器的加热循环和温度变化循环来评价定影构件的旋转状态的判定单元 由温度检测器检测。