An image forming apparatus has a plurality of developing devices for developing an electrostatic image formed on an image bearing member, a rotary member holding the plurality of developing devices and rotated in a route including a developing position, the rotary member selectively positioning any one of the developing devices at the developing position, each of the plurality of developing devices having a first developer carrying member and a second developer carrying member for carrying a developer thereon and carrying it to the image bearing member, and a holding member holding the first developer carrying member and the second developer carrying member and pivotally movably provided.