Heating device and image forming apparatus
    1.
    发明授权
    Heating device and image forming apparatus 有权
    加热装置和图像形成装置

    公开(公告)号:US08855541B2

    公开(公告)日:2014-10-07

    申请号:US13566706

    申请日:2012-08-03

    IPC分类号: G03G15/20

    摘要: A heating device includes a magnetic-field generating unit that generates an alternating-current magnetic field, an endless belt, and a heat transfer unit that includes a heat storage layer, a thermosensitive layer, and a diffusion layer. The thermosensitive layer extends so as to separate the magnetic-field generating unit and the heat storage layer from each other, and forms a magnetic path that allows a magnetic flux of the alternating-current magnetic field to pass therethrough in a direction in which the thermosensitive layer extends at a temperature below a Curie temperature and a magnetic path that allows the magnetic flux to extend therethrough and reach the heat storage layer at a temperature higher than or equal to the Curie temperature. The diffusion layer has a higher thermal conductivity than thermal conductivities of the thermosensitive layer and the heat storage layer, and diffusing heat of the belt.

    摘要翻译: 加热装置包括产生交流磁场的磁场产生单元,环形带,以及包括蓄热层,热敏层和扩散层的传热单元。 热敏层延伸以将磁场产生单元和蓄热层彼此分开,并形成允许交流磁场的磁通量通过其中的热路径,其中热敏层 层在低于居里温度的温度和允许磁通量通过其延伸并在高于或等于居里温度的温度下到达储热层的磁路上延伸。 扩散层具有比热敏层和储热层的热导率更高的热导率,并且传播带的热量。

    Duplex imaging apparatus
    2.
    发明授权
    Duplex imaging apparatus 有权
    双面成像装置

    公开(公告)号:US06222606B1

    公开(公告)日:2001-04-24

    申请号:US09359798

    申请日:1999-07-26

    IPC分类号: G03B2732

    摘要: Premising a duplex imaging apparatus having an image carrier provided with a plurality of image carrying regions, the image deterioration phenomenon (i.e., the so-called “oil ghost phenomenon”), as might otherwise accompany the local transfer of a releasing agent from a fixing unit to the image carrier, is effectively avoided. In a mode where the image carrier 2 is provided with the plural image carrying regions, duplex mode control unit 8 includes an imaging sequence determining portion 9 for determining such a fundamental imaging sequence that when duplex images are to be formed on sheets 4 more than an image carriable number of the image carrier 2, the fundamental sequence determining portion 9 causes the image carrier 2: to carry first screen images A less than the image carriable number in a first imaging cycle of an imaging unit 1; to carry images corresponding to the image carriable number in and after a second imaging cycle so that at least second screen images B may be positioned at the front of the first screen images A; and to carry the second screen images B less than the image carriable number in the last imaging cycle.

    摘要翻译: 提供具有设置有多个图像承载区域的图像载体的双面成像装置,图像劣化现象(即所谓的“油重影现象”)可能伴随着脱模剂从固定的局部转移 单元到图像载体,被有效地避免。 在图像载体2设置有多个图像承载区域的模式中,双面模式控制单元8包括用于确定这样的基本成像序列的成像序列确定部分9,即当在多于4个的片材4上形成双面图像时 图像载体2的图像载体号,基本序列确定部分9使图像载体2在成像单元1的第一成像周期中携带小于图像载体数量的第一屏幕图像A; 以在第二成像周期中和之后携带与图像可载卡号相对应的图像,使得至少第二屏幕图像B可以位于第一屏幕图像A的前面; 并且在最后一个成像周期中携带第二屏幕图像B小于图像可携带号码。

    Fuser for two-sided imager
    3.
    发明授权
    Fuser for two-sided imager 有权
    双面成像器的定影器

    公开(公告)号:US06173136B2

    公开(公告)日:2001-01-09

    申请号:US09365802

    申请日:1999-08-03

    IPC分类号: G03G1520

    摘要: Image deterioration (so-called oil ghost) due to local transfer of a release agent from a fuser to an intermediate transfer body is effectively prevented. The fuser has a pair of fixing members, a release supply mechanism, an interlocking mechanism, and an interlocking control mechanism. The fixing members are in contact with each other and roll over each other, thus nipping a sheet. The fixing members fix unfixed images on the sheet. The release agent supply mechanism is mounted to at least the fixing member located on the surface of the sheet carrying an unfixed image. The release agent supply mechanism supplies a release agent to this fixing member at a constant rate. The interlocking mechanism interlocks the fixing members and release agent supply mechanism with each other such that the fixing members are kept in contact with each other and roll over each other and that a release agent is supplied to the fixing members. When duplex mode is selected, the interlocking control mechanism controls the interlocking time of the interlocking mechanism according to the length of the path of the sheet going to the nip between the fixing members.

    摘要翻译: 有效地防止了由于脱模剂从定影器局部转移到中间转印体而导致的图像劣化(所谓的油重影)。 定影器具有一对固定构件,释放供给机构,联锁机构和互锁控制机构。 固定构件彼此接触并且彼此滚动,从而夹住片材。 固定构件将未固定的图像固定在片材上。 脱模剂供给机构至少安装在位于载有未定影图像的片材的表面上的固定构件。 脱模剂供给机构以一定的速度向该固定部件供给脱模剂。 互锁机构将固定部件和脱模剂供给机构互相联结,使得固定部件保持彼此接触并且彼此滚动,并且将脱模剂供给到固定部件。 当选择双面模式时,互锁控制机构根据到达固定构件之间的辊隙的片材的路径的长度来控制互锁机构的联锁时间。

    Fixing device and image forming apparatus
    4.
    发明授权
    Fixing device and image forming apparatus 有权
    固定装置和成像装置

    公开(公告)号:US08295752B2

    公开(公告)日:2012-10-23

    申请号:US12561819

    申请日:2009-09-17

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2039 G03G2215/2035

    摘要: The fixing device includes: a fixing member including a conductive layer capable of self-heating by electromagnetic induction; a drive unit rotationally driving the fixing member; a magnetic field generating member generating an alternate-current magnetic field intersecting with the conductive layer; a fixation pressing member movable so as to come into pressure contact with an outer circumferential surface of the fixing member and to separate from the outer circumferential surface; and a temperature measurement unit that includes a temperature detector and a support portion, that measures temperature of the fixing member with the temperature detector which is pressed by the support portion to be brought into contact with an inner circumferential surface of the fixing member, and that holds a contact state between the temperature detector and the inner circumferential surface in every state where the fixing member is displaced in accordance with movement of the fixation pressing 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自加热的导电层; 旋转地驱动所述固定构件的驱动单元; 产生与导电层交叉的交流磁场的磁场产生部件; 固定按压构件,其能够与所述固定构件的外周面压力接触并与所述外周面分离; 以及温度测量单元,其包括温度检测器和支撑部分,所述温度测量单元利用被所述支撑部分按压以与所述固定构件的内周面接触的所述温度检测器来测量所述固定构件的温度,并且 在固定构件根据定影按压构件的移动而移位的状态下,在温度检测器和内周面之间保持接触状态。

    FIXING DEVICE AND IMAGE FORMING APPARATUS
    5.
    发明申请
    FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
    固定装置和图像形成装置

    公开(公告)号:US20100247185A1

    公开(公告)日:2010-09-30

    申请号:US12568186

    申请日:2009-09-28

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2064 G03G2215/2035

    摘要: The fixing device includes: a fixing member including a conductive layer, and fixing toner on a recording medium by heat generation of the conductive layer by electromagnetic induction; a magnetic field generating member generating an alternate-current magnetic field intersecting with the conductive layer; and a magnetic path forming member that has an outer circumferential surface arranged to be in contact with an inner circumferential surface of the fixing member, that forms a magnetic path of the alternate-current magnetic field generated by the magnetic field generating member, and that includes: a magnetic layer having a changing range within a temperature range of about 20 degrees C., the changing range allowing a magnetic property of the magnetic layer to change between ferromagnetic and a paramagnetic properties in accordance with temperature; and an outer circumferential layer made of any one of or both chromium nitride as CrN and chromium nitride as Cr2N.

    摘要翻译: 定影装置包括:固定构件,其包括导电层,并且通过电磁感应通过导电层的发热将调色剂定影在记录介质上; 产生与导电层交叉的交流磁场的磁场产生部件; 以及磁路形成构件,其具有被配置成与所述固定构件的内周面接触的外周面,其形成由所述磁场产生构件产生的所述交流磁场的磁路,并且包括 :在大约20摄氏度的温度范围内具有变化范围的磁性层,允许磁性层的磁特性根据温度在铁磁性和顺磁性之间变化的变化范围; 以及作为CrN和氮化铬作为Cr 2 N的任一种或两种氮化铬制成的外周层。

    FIXING DEVICE AND IMAGE FORMING APPARATUS
    6.
    发明申请
    FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
    固定装置和图像形成装置

    公开(公告)号:US20100215390A1

    公开(公告)日:2010-08-26

    申请号:US12561819

    申请日:2009-09-17

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2039 G03G2215/2035

    摘要: The fixing device includes: a fixing member including a conductive layer capable of self-heating by electromagnetic induction; a drive unit rotationally driving the fixing member; a magnetic field generating member generating an alternate-current magnetic field intersecting with the conductive layer; a fixation pressing member movable so as to come into pressure contact with an outer circumferential surface of the fixing member and to separate from the outer circumferential surface; and a temperature measurement unit that includes a temperature detector and a support portion, that measures temperature of the fixing member with the temperature detector which is pressed by the support portion to be brought into contact with an inner circumferential surface of the fixing member, and that holds a contact state between the temperature detector and the inner circumferential surface in every state where the fixing member is displaced in accordance with movement of the fixation pressing 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自加热的导电层; 旋转地驱动所述固定构件的驱动单元; 产生与导电层交叉的交流磁场的磁场产生部件; 固定按压构件,其能够与所述固定构件的外周面压力接触并与所述外周面分离; 以及温度测量单元,其包括温度检测器和支撑部分,所述温度测量单元利用被所述支撑部分按压以与所述固定构件的内周面接触的所述温度检测器来测量所述固定构件的温度,并且 在固定构件根据定影按压构件的移动而移位的状态下,在温度检测器和内周面之间保持接触状态。

    Fixing apparatus and image forming apparatus
    7.
    发明授权
    Fixing apparatus and image forming apparatus 有权
    固定装置和成像装置

    公开(公告)号:US07907870B2

    公开(公告)日:2011-03-15

    申请号:US12202877

    申请日:2008-09-02

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2039 G03G2215/2035

    摘要: A fixing apparatus includes a magnetic-field generating part that generates a magnetic field, a fixing rotating body having a heat generating layer that generates heat by an electromagnetic induction action of the magnetic field, a pressurizing member that applies pressure to an outer circumferential surface of the fixing rotating body, a heating member that is arranged in contact with an inner side of the fixing rotating body so as be opposed to the magnetic-field generating part, and heats the fixing rotating body, and a temperature sensing part that is located within a region where the fixing rotating body is opposed to the magnetic-field generating part and where the fixing rotating body is in contact with the heating member, and senses a temperature of the fixing rotating body.

    摘要翻译: 定影装置包括产生磁场的磁场产生部分,具有通过磁场的电磁感应产生热量的发热层的固定旋转体,向外周面施加压力的加压部件 所述固定旋转体,与所述固定旋转体的内侧接触而与所述磁场产生部对置配置的加热部件,并且对所述固定旋转体进行加热;以及温度检测部,其位于 固定旋转体与磁场产生部对置的区域,固定旋转体与加热部件接触,感测固定旋转体的温度。

    FIXING APPARATUS AND IMAGE FORMING APPARATUS
    9.
    发明申请
    FIXING APPARATUS AND IMAGE FORMING APPARATUS 有权
    固定装置和图像形成装置

    公开(公告)号:US20090232534A1

    公开(公告)日:2009-09-17

    申请号:US12202877

    申请日:2008-09-02

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2039 G03G2215/2035

    摘要: A fixing apparatus includes a magnetic-field generating part that generates a magnetic field, a fixing rotating body having a heat generating layer that generates heat by an electromagnetic induction action of the magnetic field, a pressurizing member that applies pressure to an outer circumferential surface of the fixing rotating body, a heating member that is arranged in contact with an inner side of the fixing rotating body so as be opposed to the magnetic-field generating part, and heats the fixing rotating body, and a temperature sensing part that is located within a region where the fixing rotating body is opposed to the magnetic-field generating part and where the fixing rotating body is in contact with the heating member, and senses a temperature of the fixing rotating body.

    摘要翻译: 定影装置包括产生磁场的磁场产生部分,具有通过磁场的电磁感应产生热量的发热层的固定旋转体,向外周面施加压力的加压部件 所述固定旋转体,与所述固定旋转体的内侧接触而与所述磁场产生部对置配置的加热部件,并且对所述固定旋转体进行加热;以及温度检测部,其位于 固定旋转体与磁场产生部对置的区域,固定旋转体与加热部件接触,感测固定旋转体的温度。

    Heater, fixing device and image forming apparatus
    10.
    发明授权
    Heater, fixing device and image forming apparatus 失效
    加热器,定影装置和图像形成装置

    公开(公告)号:US07294810B1

    公开(公告)日:2007-11-13

    申请号:US11634164

    申请日:2006-12-06

    IPC分类号: H05B11/00 G03G15/08

    CPC分类号: H05B3/0095 H05B2214/04

    摘要: A heater includes: a hollow tube sealed hermetically and reduced in pressure, the interior of the hollow tube being divided by at least one partition wall into a plurality of regions arranged side by side in a longitudinal direction of the tube; an electron source provided in each of the divided regions, the electron source being supported inside the hollow tube in an electrically insulated state from the hollow tube; a power supply that applies a voltage between the hollow tube and the electron source with the electron source as a negative polarity side; and the electron source emitting electrons toward an inner periphery surface of the hollow tube to heat the hollow tube.

    摘要翻译: 加热器包括:密封密封并减压的中空管,中空管的内部被至少一个分隔壁分成沿管的纵向方向并排设置的多个区域; 设置在每个分割区域中的电子源,电子源以中空管的电绝缘状态被支撑在中空管内; 在电子源作为负极侧,在中空管与电子源之间施加电压的电源; 以及向中空管的内周面发射电子的电子源,以加热中空管。