Patent ID: 9746792
Date: 2017-08-29
CPC Classifications: G03G

Claim:
1. A charging member comprising: a support member; a conductive elastic layer disposed on the support member; and a surface layer disposed on the conductive elastic layer, wherein first irregularities of a first type with a cycle of shorter than 0.1 mm and second irregularities of a second type with a cycle of 0.1 mm or longer are distributed on an entirety of an outer circumferential surface of the charging member, and satisfy the following conditions of (1) and (2): (1) the first irregularities with the cycle of shorter than 0.1 mm have an average height of 5 μm to 8 μm; and (2) the second irregularities with the cycle of 0.1 mm or longer have an average height of 6 μm to 30 μm, and wherein a half-value width of a maximum frequency value of a height distribution on the outer circumferential surface is 1 μm to 3 μm.