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    • 2. 发明公开
    • 화상형성장치
    • 图像形成装置
    • KR1020080047803A
    • 2008-05-30
    • KR1020060117703
    • 2006-11-27
    • 삼성전자주식회사
    • 배세철장웅재
    • G03G15/14
    • G03G15/2053G03G15/206G03G2215/2061G03G2215/2064
    • An image forming apparatus is provided to apply a reverse crown shape to a roller for forming a fixing nip, thereby preventing a paper from being crinkled or preventing an image from being pulled. A fixing belt(130) is installed to be circularly driven. A support roller(110,120) contacts a side of the fixing belt to support the fixing belt. A pressure member(140) pressurizes one part of the fixing belt toward a paper. A pressure roller(150) is compressed by the support roller and the pressure roller with the fixing belt. At least one of the support roller and the pressure roller has a reverse crown shape of which the diameter of both ends portion is greater than that of the center portion. The pressure member has a curved portion(141) which is curved so as for the center portion to be projected more than the both ends portion.
    • 提供了一种图像形成装置,用于向辊子施加反向冠形以形成定影辊隙,从而防止纸张皱缩或防止图像被拉动。 固定带(130)安装成循环驱动。 支撑辊(110,120)接触定影带的一侧以支撑定影带。 压力构件(140)将定影带的一部分朝向纸张加压。 压力辊(150)由支撑辊和加压辊与定影带一起压缩。 支撑辊和压力辊中的至少一个具有两个端部的直径大于中心部的直径的反向冠状。 压力构件具有弯曲部分(141),弯曲部分(141)使中心部分比两端部分突出。
    • 3. 发明公开
    • 정착장치 및 이를 구비한 화상형성장치
    • 熔接装置和具有该装置的图像形成装置
    • KR1020080025252A
    • 2008-03-20
    • KR1020060089822
    • 2006-09-15
    • 삼성전자주식회사
    • 장웅재배세철
    • G03G15/20
    • G03G21/1685G03G15/2035G03G2221/1639G03G2221/169
    • A fusing device and an image forming apparatus having the same are provided to enable a user to release applied pressure of the fusing device by opening a cover of the image forming apparatus with small force and stably add applied pressure of the fusing device when closing the cover. A fusing unit has a pressing roller(22) and a heating roller(21) which are relatively rotated as being contacted with each other. A cover(24) opens and closes the fusing unit. One end of a pressing and releasing unit(23) is rotatably fixed to a first rotation shaft(26'). The pressing and releasing unit comprises a first member(26). The first pressing unit comprises a first pressing unit(26b) and a first pressed unit(26a). The first pressing unit presses the pressing roller towards the heating roller when the cover is closed. The first pressed unit is pressed by the cover at a distance farther than the first pressing unit from the first rotation shaft. A stopper(27) is installed at the other side of the first pressed unit to limit the movement range of the first member when the cover is closed lest the force transferred to the first pressed unit should exceed a predetermined level.
    • 提供一种定影装置和具有该定影装置的图像形成装置,以使用户能够以较小的力打开图像形成装置的盖并释放定影装置的施加压力,并且在关闭盖子时稳定地增加定影装置的施加压力 。 定影单元具有相互旋转相对旋转的加压辊(22)和加热辊(21)。 盖(24)打开和关闭定影单元。 按压释放单元(23)的一端可旋转地固定在第一旋转轴(26')上。 按压释放单元包括第一构件(26)。 第一按压单元包括第一按压单元(26b)和第一按压单元(26a)。 当盖关闭时,第一按压单元将加压辊向加热辊按压。 第一按压单元被盖子从第一旋转轴以比第一按压单元更远的距离被按压。 在第一按压单元的另一侧安装有止动件(27),以限制盖子关闭时第一构件的运动范围,以免传递到第一按压单元的力超过预定水平。
    • 10. 发明公开
    • 정착부 및 이를 포함하는 화상형성장치
    • 熔接单元和图像形成装置
    • KR1020090038772A
    • 2009-04-21
    • KR1020070104248
    • 2007-10-16
    • 삼성전자주식회사
    • 배세철
    • G03G15/20G03G15/00
    • G03G15/206G03G2215/2032
    • A fusing unit and an image forming apparatus having the same are provided to minimize a line burst phenomenon of a printing medium by electronic-charging the printing medium in reverse polarity. A driving roller(210) is driven by a driver source. At this time, a fusing belt is moved by its tensile force and the friction force between the fusing belt and the driving roller. A pressurizing roller(240) is elastically biased in a direction of a fusing roller(211) by an elastic member(243) to pressurize the printing medium with the driving roller and the fusing roller. A heating roller(220) is heated by a heat source to transmit heat to the fusing belt in order to fuse a toner. A power supply unit(250) applies the power source which has the polarity opposite to the polarity of a toner image.
    • 提供了一种定影单元和具有该定影单元的图像形成装置,以通过以相反的极性对打印介质进行电子充电来最小化打印介质的线路突发现象。 驱动辊(210)由驱动源驱动。 此时,定影带由其张力和定影带与驱动辊之间的摩擦力而移动。 加压辊(240)通过弹性部件(243)沿着定影辊(211)的方向弹性偏压,以便利用驱动辊和定影辊对打印介质加压。 加热辊(220)被热源加热以将热传递到定影带,以便熔化调色剂。 电源单元(250)施加极性与调色剂图像的极性相反的电源。