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    • 2. 发明授权
    • Image fixing device and method thereof
    • 图像定影装置及其方法
    • US5546175A
    • 1996-08-13
    • US528012
    • 1995-09-14
    • Yasuhiro UeharaYasuhiro KusumotoYoshio KanesawaToru Inoue
    • Yasuhiro UeharaYasuhiro KusumotoYoshio KanesawaToru Inoue
    • G03G15/20
    • G03G15/2064
    • The present invention provides an image fixing device for fixing toner on a transfer member comprises a heat roller which is a hollow cylindrical member rotatably supported at both end portions and having heating means inside thereof, pressure means press-contacted to the heat roller for pressing the transfer member passing between the heat roller and the pressure means against to a peripheral surface of the heat roller, and the pressure means is a pressure roller disposed approximately parallel to the heat roller and supported rotatably, at least one of the heat roller and the pressure roller has a layer of elastic material on its peripheral surface, and a value A/B is set to be within a range from 0.7 to 0.8 wherein A represents a nip width at an approximate central portion of an area between the heat roller and the pressure roller where the transfer member passes through and B represents a nip width at end portions of the area.
    • 本发明提供了一种用于将调色剂定影在转印部件上的图像定影装置,包括:加热辊,该加热辊是在两端部可旋转地支撑并且在其内部具有加热装置的中空圆柱形部件,压力装置与加热辊压接, 传递构件在加热辊和加压装置之间穿过加热辊的外周表面,并且压力装置是设置成大致平行于加热辊并且可旋转地支撑的加压辊,加热辊和压力中的至少一个 辊在其外周表面上具有一层弹性材料,并且值A / B设定在0.7至0.8的范围内,其中A表示加热辊与压力之间的区域的大致中心部分处的压区宽度 转印部件通过的辊,B表示该区域的端部处的辊隙宽度。
    • 6. 发明授权
    • Image recording apparatus with reduced thermal energy requirements
    • 具有降低热能需求的图像记录装置
    • US06175713B1
    • 2001-01-16
    • US09299006
    • 1999-04-26
    • Yasuhiro UeharaYasuhiro KusumotoYoshio Kanesawa
    • Yasuhiro UeharaYasuhiro KusumotoYoshio Kanesawa
    • G03G1516
    • H05B6/145G03G15/161G03G15/162G03G2215/0119G03G2215/1695
    • In an image recording apparatus in which a toner image on a toner image holding and conveying member is transferred onto a recording member and is fixed at the same time, the change of charging characteristics or the like by accumulation of heat in the apparatus is prevented, the toner image is certainly transferred and fixed onto the recording member with small consumed energy, and high speed print can be made. An intermediate transfer material on which a toner image is primarily transferred is disposed at a position facing a photosensitive drum, and a pressing roller for pressing the toner image against the recording member is disposed at the downstream side in the conveying direction of the transferred toner image. At the upstream side of the secondary transfer portion where the pressing roller is pressed, an electromagnetic induction heating unit for melting the toner image on the intermediate transfer material is disposed. The intermediate transfer material includes a conductive layer therein, and when the electromagnetic induction heating unit generates fluctuating magnetic field, the conductive layer is heated by eddy current. The toner is heated up to a temperature not less than the softening point temperature by this heat, and is instantly transferred by press contact with the recording member. The toner is cooled while it passes through the secondary transfer portion.
    • 在其中调色剂图像保持和传送部件上的调色剂图像被转印到记录部件上并同时固定的图像记录装置中,防止了装置中的热累积引起的充电特性等的改变, 调色剂图像肯定地以小的消耗能量转印并固定到记录部件上,并且可以进行高速打印。 将调色剂图像主要转印到其上的中间转印材料设置在面向感光鼓的位置,并且用于将调色剂图像压靠在记录部件上的加压辊设置在转印的调色剂图像的输送方向的下游侧 。 在按压滚筒的二次转印部分的上游侧,设置用于熔化中间转印材料上的调色剂图像的电磁感应加热单元。 中间转印材料在其中包括导电层,并且当电磁感应加热单元产生波动的磁场时,导电层被涡流加热。 通过该加热将调色剂加热至不低于软化点温度的温度,并通过与记录部件的压接而立即转印。 调色剂在通过二次转印部分时被冷却。
    • 9. 发明授权
    • Fixing device
    • 固定装置
    • US5359401A
    • 1994-10-25
    • US139770
    • 1993-10-22
    • Yasuhiro UeharaYasuhiro KusumotoShohzoh Yamamoto
    • Yasuhiro UeharaYasuhiro KusumotoShohzoh Yamamoto
    • B65H5/02G03G15/20
    • G03G15/2064
    • A fixing device includes a contact portion formed by making a part of an endless belt supported by a plurality of tension rollers contact a fixing roller having an elastic body applied thereon. The contact portion includes a contact point formed by making a pressure roller inside the endless belt bear against the fixing roller under pressure through the endless belt at an exit point of the contact portion. The fixing device also includes a braking device which brakes the transport of the endless belt at the contact point such that the endless belt at the point where the pressure roller bears against the fixing roller moves at a speed greater than the remaining portions of the endless belt.
    • 定影装置包括通过使由多个张力辊支撑的环形带的一部分与其上施加有弹性体的定影辊接触而形成的接触部。 接触部分包括通过使环形带内的压力辊在压力下通过环形带在接触部分的出口处抵靠定影辊而形成的接触点。 固定装置还包括制动装置,其在接触点处制动环形带的传送,使得在压力辊承受定影辊的点处的环形带以大于环形带的剩余部分的速度移动 。