Patent ID: 6118965
Filing Date: 2000-09-12
Classification: G03G

Abstract:
An image forming apparatus comprising:an image bearing member;a charging device for charging said image bearing member, said charging device including a charging member for being supplied with a voltage and for forming a nip with said image bearing member and including electroconductive particles in said nip;developing means for developing, with one-component developer, an electrostatic latent image formed on said image bearing member using said charging device; said developing means including a developer carrying member for carrying the developer, wherein the developer carried on said developer carrying member during a developing operation is contacted to said image bearing member at a contact position where peripheral movement directions of said image bearing member and said developer carrying member are the same, and wherein a surface speed of said image bearing member Vd and a surface speed of said developer carrying member Vs satisfy:1.2<Vs/Vd<2.5,wherein the electroconductive particles have a particle size which is not more than one half that of the developer.