A recycle developer bearing body which is an effective recycle of a used developer
bearing body, helps effective utilization of resources, and does not result in
image quality degradation, such as developer concentration unevenness. In the recycle
developer bearing body, even when scars or other defects are developed on a developer
bearing surface of the developer bearing body from previous use, a surface roughness
Ra of the developer bearing surface having the scars or other defects of the developer
bearing body is 0.8 m or more.