Patent ID: 7702257
Filing Date: 2010-04-20
Classification: G03G

Abstract:
1. An image forming apparatus comprising: at least one image bearing member; at least one charging device configured to charge a surface of the at least one image bearing member; and at least one developing device configured to develop an electrostatic latent image on the surface of the at least one image bearing member with a developer including a toner to form a toner image thereon; wherein the toner has a volume average particle diameter (Dv) of from 3 to 7 μm, a ratio (Dv/Dn) of the volume average particle diameter (Dv) to a number average particle diameter (Dn) of from 1.00 to 1.40, a form factor SF-1 of from 100 to 180 and another form factor SF-2 of from 100 to 180; the at least one image bearing member comprises an outermost layer including a lubricant; the outermost layer of the at least one image bearing member has a thickness of from 4 to 10 μm, and the lubricant is included in the outermost layer in an amount of from 30 to 80% by weight based on total weight of the outermost layer, and wherein said at least one image bearing member comprises an outermost layer with a thickness of from 3 to 8 μm and which comprises a metal oxide in an amount of from 5 to 40% by weight based on total weight of the outermost layer.