公开(公告)号：US20100215414A1

公开(公告)日：2010-08-26

申请号：US12557635

申请日：2009-09-11

申请人： Takayuki Uchiyama ,  Motoi NOYA ,  Masakatsu EDA ,  Kiyoshi IWAI ,  Shuji YOSHIKAWA ,  Nobuyoshi KOMATSU ,  Makoto OMATA ,  Tsuyoshi SUNOHARA ,  Kazuyoshi ITOH ,  Motofumi BABA ,  Shigehiko HASEBA ,  Eiichiro TOKUHIRO

发明人： Takayuki Uchiyama ,  Motoi NOYA ,  Masakatsu EDA ,  Kiyoshi IWAI ,  Shuji YOSHIKAWA ,  Nobuyoshi KOMATSU ,  Makoto OMATA ,  Tsuyoshi SUNOHARA ,  Kazuyoshi ITOH ,  Motofumi BABA ,  Shigehiko HASEBA ,  Eiichiro TOKUHIRO

IPC分类号： G03G15/20 ,  H01F1/00

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： The fixing device includes: a fixing member that includes a conductive layer capable of heating by electromagnetic induction; a magnetic field generating member that generates an alternate-current magnetic field intersecting with the conductive layer of the fixing member; plural magnetic path forming members that form a magnetic path of the alternate-current magnetic field generated by the magnetic field generating member; a support member that supports the magnetic field generating member; an elastic support member that is arranged between the magnetic field generating member and the plural magnetic path forming members so as to be in contact with the plural magnetic path forming members; and a pressing member that presses the plural magnetic path forming members toward the magnetic field generating member.

摘要翻译： 定影装置包括：固定构件，其包括能够通过电磁感应加热的导电层; 产生与所述固定部件的导电层交叉的交流磁场的磁场产生部件; 形成由磁场产生部件产生的交流磁场的磁路的多个磁路形成部件; 支撑构件，其支撑所述磁场产生构件; 弹性支撑构件，其布置在所述磁场产生构件和所述多个磁路形成构件之间以与所述多个磁路形成构件接触; 以及将多个磁路形成部件朝向磁场产生部件按压的按压部件。

公开(公告)号：US20130164055A1

公开(公告)日：2013-06-27

申请号：US13480913

申请日：2012-05-25

申请人： Eiichiro TOKUHIRO ,  Kiyoshi IWAI

发明人： Eiichiro TOKUHIRO ,  Kiyoshi IWAI

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2039 ,  G03G15/2046

摘要： A fixing device includes a magnetic-field generating unit that generates a magnetic field; a substantially cylindrical fixing rotational body that faces the magnetic-field generating unit, generates heat by electromagnetic induction of the magnetic field, and melts and fixes a developer image to a recording medium; a temperature-sensitive contact part that contacts an inner side of the fixing rotational body, and faces the magnetic-field generating unit, its permeability decreasing if its temperature becomes a permeability-change start temperature or higher; and a temperature-sensitive non-contact part arranged at the inner side of the fixing rotational body to face the magnetic-field generating unit in a range different from the contact part, and spaced from the fixing rotational body. An angle defined by the contact part and the center of the fixing rotational body is 60° or larger.

摘要翻译： 定影装置包括产生磁场的磁场产生单元; 面对磁场产生单元的基本圆柱形的固定旋转体通过电磁感应产生热量，并将显影剂图像熔融并固定到记录介质上; 与所述固定旋转体的内侧接触并且面对所述磁场产生单元的感温接触部，如果其温度变为磁导率变化开始温度以上，则其磁导率降低; 以及布置在固定旋转体的内侧的温度敏感的非接触部分，以在与接触部分不同的范围内面对磁场产生单元，并且与固定旋转体间隔开。 由接触部和定影旋转体的中心限定的角度为60°以上。