Patent ID: 9069291
Filing Date: 2015-06-30
Classification: G03G

Abstract:
1. A cartridge detachably mountable to a main assembly of an image forming apparatus, the cartridge comprising: a rotatable member; a blade member, including a rubber portion, contacted to said rotatable member, and a metal plate portion supported to said blade member; a frame, formed of a resin material, for supporting said blade member; and a seal member, extending in a direction crossing an axial direction of said rotatable member, provided on said frame to be contacted to a portion of said rubber portion and said metal plate portion, wherein said seal member is formed on said frame by injection molding for sealing a gap between said blade member and said frame, wherein said rotatable member is an image bearing member for forming an electrostatic latent image on its surface, wherein said rubber portion has a corner portion formed as a stepped portion at a boundary between itself and said metal plate portion and removes developer in contact with said surface of said image bearing member, and wherein said seal member further includes a third contact portion contacted to said corner portion, constituting an inclined surface for connecting a first contact portion and a second contact portion, which are different in height.