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    • 1. 发明申请
    • FIXING APPARATUS
    • 固定装置
    • US20100172677A1
    • 2010-07-08
    • US12683631
    • 2010-01-07
    • Takahiro HosokawaKazuhisa KemmochiHikaru OsadaKeisuke AbeTsutomu Miki
    • Takahiro HosokawaKazuhisa KemmochiHikaru OsadaKeisuke AbeTsutomu Miki
    • G03G15/20
    • G03G15/2064G03G15/206G03G2215/2035G03G2215/2041
    • A fixing apparatus for heat-fixing a toner image formed on a sheet, includes a roller; an endless belt contacted to the roller; a pressing member contacted to an inner surface of the endless belt and cooperating with the roller to nip the endless belt, wherein the sheet on which the unfixed toner image is formed is heated while being nipped and fed by a nip between the roller and the endless belt, wherein such a surface of the pressing member as is opposed to the inner surface of the endless belt is curved substantially in the same direction as a curved surface of the roller, wherein the nip includes a first nip region in which the belt is not pressed by the pressing member and the endless belt is contacted to the roller by an elastic force of the endless belt which is in a slack state, and a second nip region in which the endless belt is contacted to the roller by pressing of the pressing member, wherein the nip starts with the first nip region with respect to a feeding direction of the sheet, wherein the second nip region is continuous with the first nip region.
    • 用于对形成在片材上的调色剂图像进行热定影的定影装置包括辊子; 与辊接触的环形带; 压接构件与环形带的内表面接触并且与辊配合以夹持环形带,其中在其上形成未定影调色剂图像的片材被加压并被夹持并通过辊和环形物之间的辊隙 带,其中与所述环形带的内表面相对的所述按压构件的所述表面基本上在与所述辊的曲面相同的方向上弯曲,其中所述辊隙包括第一辊隙区域,其中所述带不是 被按压部件按压并且环形带通过处于松弛状态的环形带的弹力与辊接触,以及第二压合区域,其中环形带通过按压压紧构件 ,其中所述压区相对于所述片材的进给方向从所述第一压区开始,其中所述第二压区区域与所述第一压区区域连续。
    • 2. 发明申请
    • IMAGE FORMING APPARATUS
    • 图像形成装置
    • US20110318036A1
    • 2011-12-29
    • US13170655
    • 2011-06-28
    • Keisuke AbeKazuhisa KemmochiTsutomu MikiHikaru OsadaTakahiro Hosokawa
    • Keisuke AbeKazuhisa KemmochiTsutomu MikiHikaru OsadaTakahiro Hosokawa
    • G03G15/20
    • G03G15/2064G03G15/2032G03G2215/00805G03G2215/0081
    • An image forming apparatus includes an image forming station for forming a toner image on a recording material; and a fixing portion including a heating rotatable member, a heating element for heating the heating rotatable member using heat generation by electric power supply, a pressing rotatable member for contacting the heating rotatable member to form a nip for nipping and feeding the recording material, a pressure changing member for changing a pressure to the nip, wherein the fixing portion fixes the toner image on the recording material while nipping and feeding the recording material carrying the toner image by the nip, and fixing portion is capable of changing a glossiness of the toner image by changing the pressure to the nip by operation of the pressure changing member, wherein the image forming apparatus is operable in a glossy mode in which the glossiness of the toner image is switchable, wherein a MD-1 hardness of a surface layer of the heating rotatable member contactable with the toner image is 20-70, and when the glossy mode is selected so as to raise the glossiness at the time of heating and fixing of the toner image, the pressure changing member operates so as to lower the pressure to the nip.
    • 图像形成装置包括用于在记录材料上形成调色剂图像的图像形成工位; 以及固定部,其包括加热可旋转部件,利用电力供给发热加热可加热可旋转部件的加热元件,用于接触加热可旋转部件以形成用于夹持和供给记录材料的辊隙的加压可旋转部件, 用于将压力改变到所述辊隙的压力变化构件,其中所述固定部分在夹持和馈送由辊隙携带调色剂图像的记录材料的同时将调色剂图像固定在记录材料上,并且固定部分能够改变调色剂的光泽度 通过改变压力变化部件的操作来将压力改变到辊隙的图像,其中,图像形成装置可以在其中调色剂图像的光泽度可切换的光泽模式下操作,其中表面层的MD-1硬度 与调色剂图像可接触的加热可旋转构件为20-70,并且当选择光泽模式以便在此时提高光泽度 调色剂图像的加热和定影时,压力改变构件的作用是降低压区的压力。
    • 3. 发明授权
    • Image heating apparatus
    • 图像加热装置
    • US07630677B2
    • 2009-12-08
    • US12363995
    • 2009-02-02
    • Hikaru OsadaKazuhisa KemmochiTakahiro HosokawaKeisuke AbeTsutomu Miki
    • Hikaru OsadaKazuhisa KemmochiTakahiro HosokawaKeisuke AbeTsutomu Miki
    • G03G15/20
    • G03G15/2064G03G2215/2009G03G2215/2016G03G2215/2032
    • In an image heating apparatus, outer peripheral surfaces of two endless belts are held in contact with each other to form a nip portion, and a recording material bearing a toner image is heated at the nip portion while being pinched and conveyed. In the image heating apparatus, the nip portion has a pre-nip portion formed by regions of the endless belts with no backup by pressure members, and a pressure nip portion where one endless belt with backup by the pressure members is held in contact with another endless belt. The image heating apparatus is capable of securing a large nip width compatible with an increase in speed and free from “pressure-absence” leading to image abnormality such as misregistration, thus enabling an image having a sufficient gloss to be obtained.
    • 在图像加热装置中,两个环形带的外周表面保持彼此接触以形成夹持部分,并且在夹持并传送带有调色剂图像的记录材料在夹持部处被加热。 在图像加热装置中,夹持部具有由环形带的区域形成的预压合部,没有压力构件的支撑,并且压力压合部,其中由压力构件支撑的环形带与另一个压接部保持接触 无尽腰带 图像加热装置能够确保与速度增加相适应的大的压区宽度,并且不会导致诸如不对准的图像异常的“无压力”,从而能够获得具有足够光泽的图像。
    • 4. 发明授权
    • Fixing apparatus with endless belt and curved pressing member
    • 具有环形带和弯曲按压构件的固定装置
    • US08326201B2
    • 2012-12-04
    • US12683631
    • 2010-01-07
    • Takahiro HosokawaKazuhisa KemmochiHikaru OsadaKeisuke AbeTsutomu Miki
    • Takahiro HosokawaKazuhisa KemmochiHikaru OsadaKeisuke AbeTsutomu Miki
    • G03G15/20
    • G03G15/2064G03G15/206G03G2215/2035G03G2215/2041
    • A fixing apparatus for heat-fixing an unfixed toner image formed on a sheet, includes a roller; an endless belt contacted to the roller; a pressing member contacted to an inner surface of the endless belt and cooperating with the roller to nip the endless belt, wherein the sheet on which the unfixed toner image is formed is heated while being nipped and fed by a nip between the roller and the endless belt, wherein such a surface of the pressing member as is opposed to the inner surface of the endless belt is curved substantially in the same direction as a curved surface of the roller, wherein the nip includes a first nip region in which the endless belt is not pressed by the pressing member and the endless belt is contacted to the roller by an elastic force of the endless belt which is in a slack state, and a second nip region in which the endless belt is contacted to the roller by pressing of the pressing member, wherein the nip starts with the first nip region with respect to a feeding direction of the sheet, wherein the second nip region is continuous with the first nip region.
    • 用于对形成在片材上的未定影调色剂图像进行热定影的定影装置包括辊子; 与辊接触的环形带; 压接构件与环形带的内表面接触并且与辊配合以夹持环形带,其中在其上形成未定影调色剂图像的片材被加压并被夹持并通过辊和环形物之间的辊隙 带,其中与所述环形带的内表面相对的所述按压构件的所述表面基本上沿与所述辊的曲面相同的方向弯曲,其中所述辊隙包括第一辊隙区域,所述环形带是 没有被按压部件按压,环形带通过处于松弛状态的环形带的弹力与辊接触,第二压合区域通过压制而使环形带与辊接触 构件,其中所述压区相对于所述片材的进给方向从所述第一压区开始,其中所述第二压区区域与所述第一压区区域连续。
    • 6. 发明申请
    • IMAGE HEATING APPARATUS
    • 图像加热装置
    • US20080050155A1
    • 2008-02-28
    • US11844100
    • 2007-08-23
    • Tsutomu MikiKazuhisa KemmochiHikaru OsadaMasao Umezawa
    • Tsutomu MikiKazuhisa KemmochiHikaru OsadaMasao Umezawa
    • G03G15/20
    • G03G15/2064G03G2215/2016G03G2215/2035
    • The image heating apparatus includes a rotary member that comes into contact with a toner image borne on a recording material, a backup member that forms a nip portion to pinch and convey the recording material with said rotary member, wherein said rotary member heats the toner image on the recording material in the nip portion, a cover member that covers a surface of said rotary member with a gap between the surface of said rotary member and the cover member and a frame that accommodates said rotary member, said backup member and said cover, wherein said cover is not in contact with said frame. This structure can suppress heat dissipation to the exterior of the image heating apparatus, thus suppressing the energy consumption.
    • 图像加热装置包括与承载在记录材料上的调色剂图像接触的旋转部件,形成夹持部分的夹持部件,用于使记录材料与所述旋转部件夹持并传送,其中所述旋转部件加热调色剂图像 在夹持部中的记录材料上,覆盖所述旋转构件的表面的盖构件,所述盖构件在所述旋转构件的表面与盖构件之间具有间隙,容纳所述旋转构件的框架,所述支撑构件和所述盖, 其中所述盖不与所述框架接触。 这种结构可以抑制对图像加热装置的外部的散热,从而抑制能量消耗。