Developer collection container having first and second developer conveyance members

1. A developer collection container comprising:

a developer collection container main body that forms a developer collection chamber in which developer is collected;

a first developer conveyance member, provided inside the developer collection container main body, that conveys the developer by rotating about a shaft; and

a second developer conveyance member, provided below the first developer conveyance member with respect to a gravitational direction in the developer collection container main body, that conveys the developer by rotating about a shaft,

the developer collection container main body having a collected developer introduction member that introduces the developer to the developer collection chamber being provided between the first developer conveyance member and the second developer conveyance member with respect to the gravitational direction.

2. The developer collection container according to claim 1 ,

wherein the first developer conveyance member and the second developer conveyance member respectively have a plurality of conveyance regions where conveyance members are formed and a plurality of non-conveyance regions without conveyance member, and

at least a part of at least one of the non-conveyance regions in at least one of the first developer conveyance member and the second developer conveyance member overlaps with another conveyance region in a shaft direction.

3. The developer collection container according to claim 2 , wherein at least one of the non-conveyance regions of the first developer conveyance member overlaps the conveyance region of the second conveyance member in the shaft direction.

4. The developer collection container according to claim 1 , wherein of the first developer conveyance member and the second developer conveyance member, at least the first developer conveyance member is provided with a reverse conveyance member that conveys the developer in a reverse direction to the conveyance member.

5. The developer collection container according to claim 2 , wherein of the first developer conveyance member and the second developer conveyance member, at least the first developer conveyance member is provided with a reverse conveyance member that conveys the developer in a reverse direction to the conveyance member.

6. The developer collection container according to claim 3 , wherein of the first developer conveyance member and the second developer conveyance member, at least the first developer conveyance member is provided with a reverse conveyance member that conveys the developer in a reverse direction to the conveyance member.

7. An image forming apparatus comprising:

an image forming apparatus main body;

a developer image forming unit, provided in the image forming apparatus main body, that forms a developer image; and

a developer collection container that collects developer discharged from the developer image forming unit,

the developer collection container having:

a developer collection container main body that forms a developer collection chamber in which the developer is collected;

a first developer conveyance member, provided inside the developer collection container main body, that conveys the developer by rotating about a shaft; and

a second developer conveyance member, provided below the first developer conveyance member with respect to a gravitational direction in the developer collection container main body, that conveys the developer by rotating about a shaft, and

the developer collection container main body having a collected developer introduction member that introduces the developer to the developer collection chamber being provided between the first developer conveyance member and the second developer conveyance member with respect to the gravitational direction.