Image forming apparatus with magnetic flux shields and recovery operation
    52.
    发明授权
    Image forming apparatus with magnetic flux shields and recovery operation 有权
    具有磁通屏蔽和恢复操作的图​​像形成装置

    公开(公告)号:US07437113B2

    公开(公告)日:2008-10-14

    申请号:US11254834

    申请日:2005-10-21

    CPC classification number: G03G15/2042 G03G15/2053 G03G2215/2035

    Abstract: An image heating apparatus has a coil for generating magnetic flux, a rotatable heat generation member which generates heat by magnetic flux, a temperature detecting member for detecting a temperature of the heat generation member, an energization controller portion for controlling energization to the coil on the basis of an output of the temperature detecting member, a first magnetic flux shielding portion for blocking, in a first magnetic flux adjustment position, the magnetic flux directed toward a central portion of heat generation member, while permitting the magnetic flux directed to an end portion, and a second magnetic flux shielding portion for blocking, in a second magnetic flux adjustment position, the magnetic flux directed toward an end portion of the heat generation member, a moving unit for moving the first magnetic flux shielding portion and the second magnetic flux shielding portion, and a recovery operation controller portion for retracting the second magnetic flux shielding portion from the second magnetic flux adjustment position and moving the first magnetic flux shielding portion to the first magnetic flux adjustment position after completion of an image formation job on recording materials having widths smaller than a maximum width of a recording material which can be fed are continuously fed, and executing energization control of the energization controller portion.

    Abstract translation: 图像加热装置具有用于产生磁通的线圈,通过磁通产生热量的可旋转的发热件,用于检测发热件的温度的温度检测件,用于控制在线圈上的通电的通电控制部分 基于温度检测部件的输出,第一磁通屏蔽部分,用于在第一磁通量调节位置中阻挡朝向发热部件的中心部分的磁通量,同时允许引导到端部的磁通量 以及第二磁通屏蔽部,其在第二磁通调整位置处阻挡朝向所述发热体的端部的磁通;移动单元,用于使所述第一磁通屏蔽部和所述第二磁通屏蔽 以及用于缩回第二磁通量sh的恢复操作控制器部分 在第二磁通量调节位置的焊接部分,并且在完成图像形成作业之后将第一磁通量屏蔽部分移动到具有小于可馈送的记录材料的最大宽度的记录材料的记录材料上的第一磁通量屏蔽部分是 连续进给,并执行通电控制部的通电控制。

    Image forming apparatus with heating rotatable member and reset control means for interrupting a currently executing image formation job
    53.
    发明授权
    Image forming apparatus with heating rotatable member and reset control means for interrupting a currently executing image formation job 有权
    具有加热旋转构件的图像形成装置和用于中断当前正在执行的图像形成作业的复位控制装置

    公开(公告)号:US07251428B2

    公开(公告)日:2007-07-31

    申请号:US11254799

    申请日:2005-10-21

    CPC classification number: G03G15/2042 G03G15/2053 G03G2215/2035

    Abstract: An image forming apparatus has an image forming unit; a heating rotatable member; a magnetic flux generator for generating a magnetic flux for induction heat generation in the heating rotatable member; a controller for controlling a temperature of the heating rotatable member; a temperature detector for detecting a temperature of the heating rotatable member at a predetermined region; magnetic flux confinor for confining the magnetic flux from the magnetic flux generator in accordance with an output of the temperature detector; and a moving unit for movement the magnetic flux confinor between a magnetic-flux-confinement position and a n on-magnetic-flux-confinement position, wherein when the output of the temperature detector indicates a temperature outside a predetermined temperature range, an image forming operation is interrupted, and executes operation of the moving unit to move the magnetic flux confinor to the non-magnetic-flux-confinement position and restoring operation to restore the temperature of the heating rotatable member.

    Abstract translation: 图像形成装置具有图像形成单元; 加热可旋转构件; 用于在所述加热可旋转构件中产生用于感应发热的磁通量的磁通量发生器; 用于控制加热可旋转构件的温度的控制器; 温度检测器,用于在预定区域检测加热可旋转部件的温度; 磁通量分配器,用于根据温度检测器的输出限制来自磁通量发生器的磁通量; 以及用于在磁通限制位置和非磁通限制位置之间移动磁通量限制器的移动单元,其中当温度检测器的输出表示超出预定温度范围的温度时,图像形成操作 并且执行移动单元的操作以将磁通量约束器移动到非磁通限制位置并恢复操作以恢复加热可旋转构件的温度。

    Image heating apparatus
    55.
    发明申请
    Image heating apparatus 有权
    图像加热装置

    公开(公告)号:US20060086730A1

    公开(公告)日:2006-04-27

    申请号:US11254705

    申请日:2005-10-21

    Abstract: An image heating apparatus includes a heating rotatable member for heating an image on a recording material in a heating nip; magnetic flux generating means for generating a magnetic flux for induction heat generation in the heating rotatable member; magnetic flux confining means for confining the magnetic flux directed toward a predetermined region of the heating rotatable member from the magnetic flux generating means; and moving means for repeatedly moving the magnetic flux confining means during a heating operation between the operating position and a retracted position retracted from the operation position, when the recording material which has a predetermined width overlapping with a part of the predetermined region is continuously heated by the apparatus.

    Abstract translation: 图像加热装置包括:加热可旋转构件,用于加热加热辊隙中的记录材料上的图像; 磁通产生装置,用于在加热可旋转构件中产生用于感应发热的磁通量; 磁通限制装置,用于限制来自磁通量产生装置的朝向加热可旋转构件的预定区域的磁通量; 以及移动装置,用于当与预定区域的一部分重叠的具有预定宽度的记录材料被连续加热时,在操作位置与从操作位置缩回的缩回位置之间的加热操作期间重复地移动磁通限制装置 该装置。

    Heating apparatus
    57.
    发明申请
    Heating apparatus 有权
    加热装置

    公开(公告)号:US20050180787A1

    公开(公告)日:2005-08-18

    申请号:US11016874

    申请日:2004-12-21

    CPC classification number: G03G15/2042 G03G2215/2035

    Abstract: A heating apparatus of an electromagnetic induction heating type includes a coil and a roller which generates heat by the action of magnetic flux generated from the coil. A recording material is heated by the roller. The heating apparatus further includes a movable magnetic flux decreasing member for decreasing magnetic flux, generated from the coil, acting on the roller. In the heating apparatus, a shutter is moved toward an effective position at which a temperature in a non-conveyance area is lowered when a recording material having a size lower than a maximum conveyable size is conveyed, and is moved away from the effective position depending on the temperature in the non-conveyance area, irrespective of the size of the recording material to be conveyed.

    Abstract translation: 电磁感应加热型的加热装置包括线圈和由线圈产生的磁通的作用产生热的辊。 记录材料由辊加热。 加热装置还包括用于减小由线圈产生的作用在辊上的磁通的可移动磁通量减小构件。 在加热装置中,当输送尺寸低于最大可输送尺寸的记录材料时,挡板移动到非输送区域中的温度降低的有效位置,并且移动远离有效位置依赖 在非输送区域的温度下,不管要输送的记录材料的尺寸如何。

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