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    • 4. 发明申请
    • FIXING UNIT AND IMAGE FORMING APPARATUS HAVING THE SAME
    • 固定单元和图像形成装置
    • US20140133872A1
    • 2014-05-15
    • US13721208
    • 2012-12-20
    • SAMSUNG ELECTRONICS CO., LTD.
    • Sung Woo KANGJin Gue KoHyun Joon KeumSeung Jun Lee
    • G03G15/20
    • G03G15/2028G03G15/2064
    • A fixing unit which may be disposed in an image forming includes a heating roller, at least one pressure roller being in pressure contact with the heating roller to form a nip together with the heating roller, and a pressure releasing member partially restricting application of pressure to the nip. The nip includes an effective fixing section used for fixing. The pressure releasing member includes a pair of pressure releasing parts inserted into sections of the nip other than the effective fixing section, a connection part connecting the pair of pressure releasing parts, and guide parts extending from the connection part in the same direction as the pair of pressure releasing parts. The pressure releasing member prevents deformation of a portion of an elastic layer formed on the heating roller which corresponds to the effective fixing section.
    • 可以设置在图像形成中的定影单元包括加热辊,至少一个加压辊与加热辊压力接触以与加热辊一起形成辊隙,并且压力释放构件部分地限制施加压力 nip 辊隙包括用于固定的有效固定部分。 压力释放构件包括插入除了有效固定部分之外的辊隙部分中的一对压力释放部件,连接一对压力释放部件的连接部件和从连接部件沿与该对部件相同的方向延伸的引导部件 的压力释放部件。 压力释放构件防止形成在与有效固定部分相对应的加热辊上的弹性层的一部分的变形。