| 摘要 |
PROBLEM TO BE SOLVED: To provide a charging device, capable of stably removing foreign matter such as a toner stuck to a charging member over a long period. SOLUTION: The charging device includes a cylindrical charging member, and a charging member cleaning member for cleaning a surface of the charging member while following the rotation of the charging member in contact therewith, which includes a core material and a cylindrical elastic layer formed on the outer circumference of the core material, wherein the concentricity of the core material and the cylindrical elastic layer is within the range of 1/5 and 1/2 of the average nip quantity of the charging member and the charging member cleaning member. COPYRIGHT: (C)2009,JPO&INPIT
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