Patent ID: 9002242
Filing Date: 2015-04-07
Classification: G03G

Abstract:
1. A developing apparatus, comprising: a developer carrying member configured to carry a developer to a developing region opposing an image bearing member, the developer carrying member having a surface provided with a plurality of grooves; a regulating member configured to regulate an amount of the developer carried by the developer carrying member, wherein the regulating member includes a guide portion configured to guide the developer to a regulating position in which the regulating member is closest to the developer carrying member, the guide portion being located on an upstream side with respect to the regulating position in a rotation direction of the developer carrying member, the guide portion being shaped so that a gap between the guide portion and a tangent of the developer carrying member at the regulating position becomes narrower toward a downstream side in the rotation direction of the developer carrying member; a downstream slope surface provided on the downstream side in the rotation direction of the developer carrying member within a region of each of the plurality of grooves, the downstream slope surface being sloped with respect to a normal direction of the developer carrying member, wherein, when a downstream end of the downstream slope surface and a downstream end of the guide portion of the regulating member are located in a closest position, the downstream slope surface and the guide portion of the regulating member form an angle θ less than 90°.