Surface roughening method for organic electrophotographic photosensitive member
AssigneeCanon Kabushiki Kaisha
InventorsKiyoshi Sakai, Teigo Sakakibara, Harumi Sakou, Shoji Amamiya
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Abstract
In a method of roughening the surface of an organic electrophotographic photosensitive member by bringing an abrasive material into slidable contact with said surface, an abrasive material in the form of a film is moved in the direction intersecting the direction of a rotating shaft of said photosensitive member, with the vibration thereof at the part coming into slidable contact with said photosensitive member, thereby roughening the surface of said photosensitive member.
Claims14
A method of roughening the rotating surface of an organic electrophotographic photosensitive member capable of visualizing toner images on said surface to reduce friction between said surface and a cleaning blade employed to remove excess toner from said surface which comprises:
- (a) contacting an abrasive material with said rotating surface, wherein said abrasive material is in the form of a film, while rotating said film in the same direction of said rotating surface;
- (b) vibrating said film at the point of said contact with said rotating surface in a vibrating direction parallel to the axis of rotation of said photosensitive member;
- and
- (c) urging said rotating and vibrating film against said rotating surface in a direction substantially perpendicular to the axis of rotation of said photosensitive member.
In an image forming method comprising the steps of
- (i) charging an organic electrophotographic photosensitive member;
- (ii) forming an electrostatic latent image on the surface of said photosensitive member by imagewise exposure;
- (iii) developing the formed electrostatic latent image;
- (iv) transferring the developed image;
- and
- (v) cleaning the surface of the photosensitive member with a blade after the developed image is transferred;
- the improvement which comprises:
- roughening the surface of said organic electrophotographic photosensitive member prior to conducting said charging step (i) by the steps of:
- (a) contacting an abrasive material with said surface at a point of contact, said abrasive material in the film-like form being urged in the direction intersecting the direction of the axis of rotation of said surface of said photosensitive member;
- and
- (b) vibrating said film like abrasive material at the point of said contact with the surface of said photosensitive member.
Dependencies are inferred from the claim text.