Patent ID: 6735410
Filing Date: 2004-05-11
Classification: G03G

Abstract:
A developing device comprising:a developing container for containing a developer, said developing container being provided at a position so as to be opposite to an image bearing member; first and second developer bearing members for bearing and carrying the developer in said developing container to said image bearing member, wherein said developing container comprises a first supporting portion for supporting a rotational shaft of said first developer bearing member and a second supporting portion for supporting a rotational shaft of said second developer bearing member so that said second developer bearing member is swingable about said first supporting portion as a swinging center; and a pressurizing member for pressurizing a portion in the vicinity of an end of said second developer bearing member toward a side of said image bearing member, wherein a portion of said second supporting portion for guiding a swing of said second developer bearing member is shaped in the form of an arc so that a distance between said first developer bearing member and said second developer bearing member does not substantially vary.