Image forming apparatus and process cartridge detachably mountable thereto

摘要

An image forming apparatus includes a movable image bearing member; charging means including a charge member for electrically charging the image bearing member with electroconductive particles between the charge member and the image bearing member; developing means for developing a latent image with toner mixed with electroconductive particles; wherein the latent image is formed on the image bearing member having been charged by the charging means, and a toner image provided by development of the latent image by the developing means is transferred onto a recording material; wherein the electroconductive particles mixed in the toner is carried by the image bearing member and is fed to between the charge member and the image bearing member; and a width A, measured in a direction perpendicular to a moving direction of the image bearing member, in which the electroconductive particle are present between the charge member and the image bearing member, a width B in which the developing means is capable of effecting development, and a recording width C of a maximum size recording material, satisfy: A>B‰¥C.