Roller charging apparatus and image forming apparatus using the same.

摘要

In the roller charging apparatus(201) the charging roller is built with epichlorohydrin rubber(101), so that it is possible to eliminate electric nonuniformity of a conductive elastic layer and to be charged by loading only a DC voltage. In addition durability can be improved by setting the roller hardness of the charging roller(101) to 42 (measured by a JISA hardness meter) or more. <IMAGE>