Patent ID: 9477173
Filing Date: 2016-10-25
CPC Classification: G03G

Claim Text:
1. A developing device comprising: a developer carrying body configured to, in a developer container, rotate in a first rotation direction while carrying a two-component developer on an outer circumferential surface of the developer carrying body, thereby conveying the two-component developer from a lower first position to an upper second position and feeding, at the second position, toner contained in the two-component developer to a toner carrying body at a next stage; a layer thickness limiting portion provided, via a gap, being opposed to a part at a third position between the first position and the second position on the outer circumferential surface of the developer carrying body, the layer thickness limiting portion being configured to limit a layer thickness of the two-component developer carried by the developer carrying body rotating in the first rotation direction; and a rotation control portion configured to rotate the developer carrying body in the first rotation direction when a development process is performed, and rotate the developer carrying body in a second rotation direction opposite to the first rotation direction when the development process is not performed, wherein the layer thickness limiting portion includes: a gap between a first part opposed to the upper surface of the base body via a space and the upper surface of the base body is greater than a gap between a second part opposed to the front end surface of the base body via a space and the front end surface of the base body.