PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

摘要

A process cartridge detachably mountable to an image forming apparatus includes: an image bearing member for forming a latent image; a charging member, press-contacted to the image bearing member at a predetermined urging force, for electrically charging the image bearing member by being supplied with a charging bias; a developing device for developing the latent image by supplying a polymerized toner to the image bearing member; and a cleaning blade for removing the polymerized toner deposited on the image bearing member in contact with the image bearing member. The charging member includes: an electroconductive support; one or more elastic layer formed around the electroconductive support; and projected portions and recessed portions provided on a surface of the charging member. The projected portions are elastically deformable in contact with the image bearing member, leaving electrically dischargeable gaps between the recessed portions of the charging member and the image bearing member.

主权项

1. A process cartridge detachably mountable to an image forming apparatus, comprising:
an image bearing member for forming a latent image; a charging member, press-contacted to said image bearing member at a predetermined urging force, for electrically charging said image bearing member by being supplied with a charging bias; developing means for developing the latent image by supplying a polymerized toner to said image bearing member; and a cleaning blade for removing the polymerized toner deposited on said image bearing member in contact with said image bearing member, wherein said charging member comprises: an electroconductive support; one or more elastic layer formed around said electroconductive support; and projected portions and recessed portions provided on a surface of said charging member, wherein the projected portions are elastically deformable in contact with said image bearing member, leaving electrically dischargeable gaps between the recessed portions of said charging member and said image bearing member.