Patent ID: 7088938

Claim:
A developing apparatus for developing an electrostatic latent image formed on an image bearing member, comprising: a developer container containing developer; and a developer carrying member configured and positioned to carry the developer and to convey the developer to the image bearing member; and a seal member, disposed at an opening of said developer container, and configured to seal said developer container at the boundary between said developer container and said developer carrying member, said sealing member comprising: a warp pile fabric, wherein said sealing member is formed by a V pile weave providing a V-shaped pile fabric texture and has a fiber density, representing a number of fibers per unit area, of not less than 260,000/inch 2 and not more than 680,000/inch 2 and a number of denier per one pile of not less than 200 denier and not more than 350 denier.