Patent ID: 6301457
Filing Date: 2001-10-09
Classification: G03G

Abstract:
A rotatable drive transmission coupling member for transmitting driving forces to first driving means for driving a seal member for sealing an opening for discharging a developer from a developer accommodating container for accommodating the developer to unseal the opening and to second driving means for driving a stirring member for stirring the developer in the developer accommodating container,wherein said drive transmission coupling member receives the driving forces from a main assembly coupling member provided in a main assembly of an image forming apparatus to rotate in a first rotational direction to drive said first driving means and unseal the opening and to rotate in a second rotational direction which is opposite from the first rotational direction to drive said second driving means, said drive transmission coupling member comprising:a first portion for substantially aligning a rotational center of said drive transmission coupling member with a rotational center of the main assembly coupling member when said drive transmission coupling member rotates in the first rotational direction, anda second portion for permitting deviation between the rotational center of said drive transmission coupling member and the rotational center of the main assembly coupling member when said drive transmission coupling member rotates in the second rotational direction.