Developer bearing member and method for producing it, for use in a developing device, image-forming apparatus or computer system, and specially in combination with a developer including pulverized toner particles

摘要

A developer bearing member for bearing toner particles is disclosed. The developer bearing member has a multitude of depressions on its surface to improve the support of the toner on its surface, and each of the depressions has a multitude of protrusions so that the toner is not trapped stickily. The developing bearing member may be specially adapted to using toner formed by grinding and of a particular size distribution wherein the number of pulverised toner particles is smaller than the number of correctly sized toner particles. <IMAGE>