Electrophotographic developing member, process for producing the same, electrophotographic process cartridge and electrophotographic image forming apparatus

摘要

To provide an electrophotographic developing member capable of forming an image by both the suppression of the deformation by the contact member and suppression of sticking of challenges developer, and stable for a long period of time. To 100nm depth from the surface of the [SOLUTION] surface layer, when to 200nm from 100nm depth, to obtain a C1, C2, C3 [mol / cm ^3], respectively, the average crosslinking density of each region to 300nm from 200nm depth electrophotographic developing member which is characterized in that, satisfy the relationship of (3) from the following formula (1): (1) C3 C2 C1; (2) C3 × 1.3 ≦ C1 ≦ C3 × 5.0; (3) 2.0 × 10 ^-4 ≦ C3 ≦ 7.0 × 10 ^-4. [Selection] Figure Figure 1