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    • 10. 发明授权
    • Charging device and image forming apparatus
    • 充电装置及成像装置
    • US07877045B2
    • 2011-01-25
    • US12427896
    • 2009-04-22
    • Takashi Hori
    • Takashi Hori
    • G03G15/02
    • G03G15/0291G03G2215/028
    • There is provided a charging device having high durability, of which controllability of charged potential of a photoreceptor is hardly impaired even with a some amount of contaminants such as a toner so that control of charged potential of a photoreceptor can be stably carried out to fall in an appropriate range over a long period of time, and moreover which is inexpensive. As a grid electrode, one prepared by forming a composite plated layer composed of three layers of an Sn plated layer, an Sn—Co plated layer and a Ni plated layer is used. More preferably, an upper layer is an Sn plated layer, an intermediate layer is an Sn—Co plated layer and a lower layer is a Ni plated layer.
    • 提供了一种具有高耐久性的充电装置,其中即使有一些污染物如调色剂也难以损害感光体的带电电位的可控性,使得可以稳定地执行感光体的带电电位的控制以落入 长期合适的范围,而且价格便宜。 作为栅电极,使用通过形成由三层Sn镀层,Sn-Co镀层和Ni镀层构成的复合镀层制成的栅电极。 更优选地,上层是Sn镀层,中间层是Sn-Co镀层,下层是Ni镀层。