Patent ID: 9632451
Date: 2017-04-25
CPC Classifications: G03G

Claim:
1. A developing device for use with an image forming apparatus, said developing device comprising: a frame including a first frame and a second frame; a developer accommodating portion for accommodating developer, said developer accommodating portion being formed by said frame; a developer carrying member for developing a latent image formed on an image bearing member using the developer accommodated in said developer accommodating portion; an end portion sealing member, provided on said first frame, for sealing between an end portion of said developer carrying member and said frame with respect to a rotational axis direction of said developer carrying member to prevent leakage of the developer from said developer accommodating portion; a sheet, provided on said second frame in contact with said developer carrying member along the rotation axis direction of said developer carrying member, for preventing leakage of the developer from said developer accommodating portion; a filler for preventing leakage of the developer from said developer accommodating portion, said filler filling a space defined by said frame, said end portion sealing member, and said sheet; and a projected portion provided in said first frame and projected toward the space, said projected portion being spaced from said second frame and said end portion sealing member in the rotational axis direction, wherein said filler is provided between said end portion sealing member and said projected portion, and wherein said space includes a first flow path for permitting said filler to be filled between said projected portion and said end portion sealing member with respect to the rotational axis direction, a second flow path for permitting said filler to be filled between said projected portion and said second frame with respect to a direction perpendicular to the rotational axis direction, and a third flow path for permitting said filler to be filled between said projected portion and said second frame with respect to the rotational axis direction.