Developing member and electrophotographic image forming apparatus

摘要

A developing member is provided which is capable of forming a high-quality image by simultaneously solving the problem of fogging in a high temperature and high humidity environment and the problem of ghosts in a low temperature and low humidity environment. The developing member includes a mandrel and a resin layer formed on the periphery of the mandrel, and has an outermost surface layer containing a non-reactive silicone compound. The non-reactive silicone compound satisfies the following requirements: (A) a copolymer of silicone and polyoxyethylene; (B) a specific gravity (25°C) d of 0.99 ‰¤ d ‰¤ 1.03; and (C) a solubility in water (25°C) of less than 0.1% by mass.