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    • 4. 发明授权
    • Developing unit and electrophotographic image forming apparatus using the same
    • 显影单元和使用其的电子照相成像设备
    • US06898402B2
    • 2005-05-24
    • US10602665
    • 2003-06-25
    • Kyung-hwan Kim
    • Kyung-hwan Kim
    • G03G15/01G03G15/00G03G15/08G03G15/06
    • G03G15/0813G03G2215/0174
    • A developing unit of an electrophotographic image forming apparatus includes at least one developing apparatus installed to be capable of accessing and being separated with respect to a photoreceptive drum and including a developing roller developing an electrostatic latent image formed on the photoreceptive drum and a gap maintenance member closely contacting the photoreceptive drum such that the developing roller accesses the photoreceptive drum in a non-contact state while maintaining a predetermined gap with the photoreceptive drum, and a guide portion formed on a frame to guide a movement of the developing apparatus. An inclined portion facing a center shaft of the photoreceptive drum is provided at a leading end of the guide portion so that the gap maintenance member closely contacts the photoreceptive drum while pressing the photoreceptive drum in a radial direction of the photoreceptive drum.
    • 电子照相图像形成装置的显影单元包括至少一个显影装置,其被安装成能够相对于感光鼓进入和分离,并且包括显影辊,其对形成在感光鼓上的静电潜像进行显影和间隙维持部件 紧密接触感光鼓,使得显影辊以非接触状态访问感光鼓,同时保持与感光鼓的预定间隙,以及形成在框架上以引导显影装置的运动的引导部分。 面向感光鼓的中心轴的倾斜部分设置在引导部分的前端,使得间隙维持部件在感光鼓的径向方向上按压感光鼓的同时与感光鼓紧密接触。
    • 6. 发明授权
    • Laser printer
    • 激光打印机
    • US06448994B1
    • 2002-09-10
    • US09901056
    • 2001-07-10
    • Kyung-hwan KimKi-ju Park
    • Kyung-hwan KimKi-ju Park
    • B41J2435
    • G03G21/1633G03G2221/1609G03G2221/163
    • A laser printer including a printer main body having a mounting portion exposed by opening a front door which is mounted on a front side of the printer main body; a side door unit mounted on a side of the printer main body to be opened and closed and rotatably supporting a transfer roller; a developing unit removably mounted in the mounting portion and having a photosensitive drum in contact with the transfer roller when mounted in the mounting portion and an opening for exposing the photosensitive drum to the external environment; an interlock device for preventing the mounted developing unit from being; removed from the mounting portion when the side door unit is closed; and a shutter device associated in operation with the interlock device to close the opening when the side door unit is opened, and expose the opening when the side door unit is closed.
    • 一种激光打印机,包括:打印机主体,其具有通过打开安装在所述打印机主体的前侧的前门而露出的安装部; 安装在打印机主体的侧面以打开和关闭并可旋转地支撑转印辊的侧门单元; 显影单元,其可拆卸地安装在安装部分中,并且当安装在安装部分中时具有与转印辊接触的感光鼓和用于将感光鼓暴露于外部环境的开口; 用于防止安装的显影单元的联锁装置; 当侧门单元关闭时从安装部分移除; 以及与所述联锁装置操作相关联的快门装置,以在所述侧门单元打开时关闭所述开口,并且当所述侧门单元关闭时露出所述开口。