Patent ID: 7364791
Filing Date: 2008-04-29
Classification: G03G,Y10T

Abstract:
1. A developer carrying member for carrying a developer, comprising: at least a substrate and a resin-coated layer formed on the surface of the substrate, wherein the developer carrying member is one that carries a one-component developer to visualize the electrostatic latent image carried by the electrostatic latent image carrying member, wherein the resin-coated layer contains at least a binder resin, graphitized particles, and roughing particles, wherein the graphitized particles have 0.20 to 0.95 of graphitization degree (p (002)), the graphitized particles have 0.5 to 4.0 μm of volume-average particle size in the resin-coated layer, and the roughing particles have 5.5 to 20.0 μm of volume-average particle size and not less than 0.75 of average circularity SF-1, wherein in the surface configuration of the resin-coated layer as measured by use of focusing optical laser, the volume (B) of a microtopographical region defined by a certain area (A) of the microtopographical region without convexity formed by the roughing particles meets the following relationship: 4.5≦ B/A ≦ 6.5, and wherein the resin-coated layer has 0.9 to 2.5 μm of arithmetic mean roughness (Ra).