Method and apparatus for forming an electrostatic

专利名称：Method and apparatus for forming an

electrostatic latent image with tonerrecovery

发明人：Syuichiro Ogata,Yoshitatsu

Okiyama,Kazuyoshi Yoshida,ToruIshihara,Kuniharu Hayashi,HiroyukiYajima,Mikio Yamamoto,Takashi

Itaya,Masanori Maekawa,Kazuhiko Nagaoka

申请号：US09/024602申请日：19980217公开号：US05943533A公开日：19990824

摘要：A method of forming an electrostatic latent image includes printing operationand toner recovering operation. The printing operation includes charging, forming anelectrostatic latent image, developing, and transferring operations. The toner recoveringoperation includes the step of charging the photosensitive drum in timed relation to therotation of the photosensitive drum after printing operation so that reversely chargedtoner deposited on the charging roller migrates from the charging roller to the

photosensitive drum. The toner migrated from the charging roller to the photosensitivedrum is recovered into a developer. An apparatus for forming an image includes acharging roller, photosensitive drum, developing roller, and transfer roller. The

apparatus further includes a reversely-charged-toner recovering device which causes thephotosensitive drum to be charged in timed relation to the rotation of the photosensitive

drum after printing operation so that the reversely charged toner deposited on thecharging roller migrates to the photosensitive drum. The developer recovers the tonerwhich has migrated to the photosensitive drum from the charging roller.

申请人：OKI DATA CORPORATION

代理机构：Panitch Schwarze Jacobs & Nadel, P

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