Conductive member, and charging roller, process cartridge...

Electrophotography – Image formation – Charging

Reexamination Certificate

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C399S176000

Reexamination Certificate

active

07603062

ABSTRACT:
A conductive member, including a long conductive supporting body, an electrical resistance adjusting layer, disposed on the outer circumferential surface of the conductive supporting body and having a reduced diameter section at either end, and a pair of gap maintaining members which are respectively fitted onto said reduced diameter sections of the electrical resistance adjusting layer. The outer circumferential surfaces of the gap maintaining members have a height differential with respect to the outer circumferential surface of the electrical resistance adjusting layer, in such a manner that when abutted against an image carrier, a prescribed gap is formed between the outer circumferential surface of the image carrier and the outer circumferential surface of the electrical resistance adjusting layer. An interval between the end faces of the electrical resistance adjusting layer and the faces of the gap maintaining members opposing the end faces satisfies a predetermined relationship.

REFERENCES:
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patent: 2005-91818 (2005-04-01), None
U.S. Appl. No. 12/049,838, filed Mar. 17, 2008, Senoh, et al.

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