| 摘要 |
PROBLEM TO BE SOLVED: To provide a charging roller of non-contact charging easily obtaining a charging gap of high precision having stable reliability in the non-contact charging of an image carrier. SOLUTION: Ring-like recesses 3d and 3e are formed on the outer peripheral face of both ends of a core metal 3c of the charging roller 3a, respectively. A conductive layer 3g is formed by painting a conductive paint material on the outer peripheral face of a center part 3f of the core metal 3c inside of both the recesses 3d and 3e. Insulating layers 3j and 3k setting charging gaps are formed by painting an insulating paint material on the outer peripheral face of both the ends 3h and 3i of the core metal 3c outside of both the recesses 3d and 3e. COPYRIGHT: (C)2007,JPO&INPIT
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