公开(公告)号：US08422901B2

公开(公告)日：2013-04-16

申请号：US13026945

申请日：2011-02-14

申请人： Kenji Ishii ,  Aldyasu Amita ,  Ken Omura ,  Kenichi Hasegawa ,  Hiroshi Yokoyama ,  Satoshi Ueno

发明人： Kenji Ishii ,  Aldyasu Amita ,  Ken Omura ,  Kenichi Hasegawa ,  Hiroshi Yokoyama ,  Satoshi Ueno

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G15/2053 ,  G03G2215/2016 ,  G03G2215/2032

摘要： An image forming apparatus includes an image forming mechanism and an image fixing unit. The image forming mechanism forms a toner image on a recording sheet. The image fixing unit fixes the toner image onto the recording sheet. The image fixing unit includes a magnetic flux generator, a heat member, a magnetic flux adjuster, and a controlling member. The magnetic flux generator generates a magnetic flux. The heat member is heated inductively by the magnetic flux generated by the magnetic flux generator. The magnetic flux adjuster reduces the magnetic flux active on the heat member to form a heat reduction area in an outer circumferential surface of the heat member in a width direction thereof. The controlling member moves the magnetic flux adjuster to change the heat reduction area.

摘要翻译： 图像形成装置包括图像形成机构和图像定影单元。 图像形成机构在记录纸上形成调色剂图像。 图像定影单元将调色剂图像固定到记录片材上。 图像定影单元包括磁通发生器，加热构件，磁通量调节器和控制构件。 磁通发生器产生磁通量。 通过由磁通发生器产生的磁通感应加热部件。 磁通量调节器减小加热部件上的磁通量，从而在加热部件的宽度方向的外周面形成减热区域。 控制构件移动磁通量调节器以改变减热区域。

公开(公告)号：US20110176822A1

公开(公告)日：2011-07-21

申请号：US13026945

申请日：2011-02-14

申请人： Kenji ISHII ,  Aldyasu Amita ,  Ken Omura ,  Kenichi Hasegawa ,  Hiroshi Yokoyama ,  Satoshi Ueno

发明人： Kenji ISHII ,  Aldyasu Amita ,  Ken Omura ,  Kenichi Hasegawa ,  Hiroshi Yokoyama ,  Satoshi Ueno

IPC分类号： G03G15/20 ,  G03G13/20

CPC分类号： G03G15/2042 ,  G03G15/2053 ,  G03G2215/2016 ,  G03G2215/2032

摘要： An image forming apparatus includes an image forming mechanism and an image fixing unit. The image forming mechanism forms a toner image on a recording sheet. The image fixing unit fixes the toner image onto the recording sheet. The image fixing unit includes a magnetic flux generator, a heat member, a magnetic flux adjuster, and a controlling member. The magnetic flux generator generates a magnetic flux. The heat member is heated inductively by the magnetic flux generated by the magnetic flux generator. The magnetic flux adjuster reduces the magnetic flux active on the heat member to form a heat reduction area in an outer circumferential surface of the heat member in a width direction thereof. The controlling member moves the magnetic flux adjuster to change the heat reduction area.

摘要翻译： 图像形成装置包括图像形成机构和图像定影单元。 图像形成机构在记录纸上形成调色剂图像。 图像定影单元将调色剂图像固定到记录片材上。 图像定影单元包括磁通发生器，加热构件，磁通量调节器和控制构件。 磁通发生器产生磁通量。 通过由磁通发生器产生的磁通感应加热部件。 磁通量调节器减小加热部件上的磁通量，从而在加热部件的宽度方向的外周面形成减热区域。 控制构件移动磁通量调节器以改变减热区域。