Aluminum pipe production process, electrophotographic photosensitive member produced by the production process, and electrophotographic apparatus having the electrophotographic photosensitive member
AssigneeCanon Kabushiki Kaisha
InventorsMutsuo Ohtaka, Hisami Tanaka, Shinichi Shibayama, Yosuke Okubo, Tatsu Nakajima
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Abstract
A process for producing an aluminum pipe is disclosed which has the steps of cutting the aluminum pipe on its periphery, and thereafter carrying out rotary pressure rolling. Also, an electrophotographic photosensitive member, a device unit, an electrophotographic apparatus and a developing roll having the aluminum pipe are disclosed.
Claims6
A device unit comprising an electrophotographic photosensitive member, and at least one of a charging means, a developing means, and a cleaning means, held in one unit, said unit being detachably provided in the body of an electrophotographic apparatus, wherein said developing means has an aluminum pipe prepared by a process comprising the steps of cutting the aluminum pipe on its periphery, and thereafter carrying out rotary pressure rolling.
An electrophotographic apparatus comprising an electrophotographic photosensitive member, a means for forming a latent image, a means for developing the latent image formed and a means for transferring the developed image to a transfer medium, wherein said means for developing has an aluminum pipe prepared by a process comprising the steps of cutting the aluminum pipe on its periphery, and thereafter carrying out rotary pressure rolling.
A developing roll comprising an aluminum pipe prepared by a process comprising the steps of cutting the aluminum pipe on its periphery, and thereafter carrying out rotary pressure rolling.
Dependencies are inferred from the claim text.