Patent ID: 8588654
Filing Date: 2013-11-19
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a rotatable image bearing member for carrying a latent image; a developing device including a developer carrying member, rotatable about a rotational axis thereof, for carrying a developer and for developing a latent image formed on said bearing member; a rotatable feeding member, provided in said developing device, for feeding the developer; a first driving force receiving member for receiving a driving, force for driving said developer carrying member, said first driving force receiving member being rotatably provided at one end portion of said developing device with respect to an axial direction of said developer carrying member; a second driving force receiving member for receiving a driving force for driving said feeding member, said second driving force receiving member being rotatably provided at the other end portion of said developing device with respect to the axial direction of said developer carrying member; an abutment member, provided at each of the axial end portions of said developer carrying member, for determining a gap between said image bearing member and said developer carrying member; a supporting mechanism for supporting said developing device so as to be movable at least in a direction toward and away from said image bearing member; a first drive inputting member for driving said first driving force receiving member; and a second drive inputting member for driving said second driving force receiving member, wherein a first force is applied to said abutment member by a drive input from said first drive inputting member to said first driving force receiving member, and a second force is applied to said abutment member by a drive input from said second drive inputting member to said second driving force receiving member, and wherein component forces of the first force and the second force along a line connecting a rotational center of said image bearing member and a rotational center of said developer carrying member in a plane perpendicular to a rotational axis of said image bearing member are oriented the same.