DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

摘要

A developing device includes a developer carrying member that carries developer; a frame member that supports the developer carrying member; a sealing section that faces a peripheral surface of the developer carrying member and suppresses leakage of the developer; and an interval ensuring member that maintains a distance between the image carrying member and the developer carrying member. The interval ensuring member includes a movement regulating portion that prevents movement of the interval ensuring member in a rotation direction of the developer carrying member when the image carrying member and the developer carrying member rotate, and a maintaining portion that contacts the image carrying member and the developer carrying member for maintaining the distance between the image carrying member and the developer carrying member. The maintaining portion and the sealing section are positioned in a predetermined cross section that is orthogonal to an axial line of the developer carrying member.

主权项

1. A developing device that is used in an image forming apparatus, the developing device comprising:
a developer carrying member that carries developer for developing a latent image on an image carrying member; a frame member that supports the developer carrying member; a sealing section that faces a peripheral surface of the developer carrying member and configured to suppress leakage of the developer from between an end portion of the developer carrying member and the frame member; and an interval ensuring member that maintains a distance between the image carrying member and the developer carrying member, wherein the interval ensuring member includes:
a movement regulating portion that prevents movement of the interval ensuring member in a rotation direction of the developer carrying member when the image carrying member and the developer carrying member rotate, anda maintaining portion that contacts the image carrying member and the developer carrying member for maintaining the distance between the image carrying member and the developer carrying member, and wherein the maintaining portion and the sealing section are positioned in a predetermined cross section that is orthogonal to an axial line of the developer carrying member.