Patent ID: 7991332

Claim:
A developing apparatus comprising: a developer container that contains a developer including a toner and a carrier; a supply device that supplies a supply developer to said developer container; a discharge opening, provided in said developer container, that permits discharge of the developer contained in said developer container; and a feeding member, disposed close to said discharge opening in said developer container, that feeds the developer, wherein said feeding member has an average developer feeding power in an opposing area, in which said feeding member is opposed to said discharge opening, larger than an average developer feeding power in an upstream-side area which is an area directly upstream from said discharge opening with respect to a developer feeding direction, and wherein said feeding member has an average developer feeding power in a downstream-side area equal to or larger than the average developer feeding power in the opposing area, in which the downstream-side area is an area directly downstream from said discharge opening with respect to the developer feeding direction.