Patent ID: 9020389
Filing Date: 2015-04-28
Classification: G03G

Abstract:
1. A developing device comprising: a frame for accommodating therein a developing agent; a developing agent carrying member having an outer peripheral surface and defining an axis, and configured to carry the developing agent on the outer peripheral surface, the developing agent carrying member being rotatable in a rotating direction about the axis and provided at the frame, the axis defining an axial direction, and the developing agent carrying member having an axial end portion; a layer thickness regulator provided at the frame and configured to regulate a thickness of a layer of the developing agent carried on the outer peripheral surface, the layer thickness regulator comprising: a pair of first seals each positioned between the axial end portion of the developing agent carrying member and the first plate member; a second seal positioned between the frame and the axial end portion of the outer peripheral surface of the developing agent carrying member, the second seal comprising: a third seal positioned between the frame and the other end portion of the first plate member, wherein each of the first seals comprises: wherein the first end portion is positioned upstream of the second end portion in the rotating direction, and the first end portion is positioned to be nipped between the layer thickness regulator and the third seal, and