Developer container, development apparatus, process cartridge, and image forming apparatus

A developer container, comprising:

• a casing that contains developer;
• and
• a belt-shaped conveying member configured to convey the developer and including a partitioning portion, the partitioning portion being a partition for the developer contained in the casing with respect to a conveying direction in which the developer is conveyed,
• wherein the partitioning portion is in contact with an interior surface of the casing when the developer container is new and extends in a direction intersecting with the conveying direction in which the developer is conveyed,
• wherein, when the developer container is new, a first developer amount which is an amount of the developer contained at an upstream side that is upstream of the partitioning portion in the conveying direction, is larger than a second developer amount which is an amount of the developer contained at a downstream side that is downstream of the partitioning portion in the conveying direction, and
• wherein the second developer amount is 0 g or greater, but not greater than 5 g.

A developer container, comprising:

• a casing that contains developer;
• and
• a belt-shaped conveying member configured to convey the developer and including a partitioning portion, the partitioning portion being a partition for the developer contained in the casing with respect to a conveying direction in which the developer is conveyed,
• wherein the partitioning portion is in contact with an interior surface of the casing when the developer container is new and extends in a direction intersecting with the conveying direction in which the developer is conveyed,
• wherein, when the developer container is new, a first developer amount which is an amount of the developer contained at an upstream side that is upstream of the partitioning portion in the conveying direction, is larger than a second developer amount which is an amount of the developer contained at a downstream side that is downstream of the partitioning portion in the conveying direction,
• wherein the conveying member includes a conveying sheet and a belt protrusion protruding from the conveying sheet, and
• wherein a length of the belt protrusion from the conveying sheet to a free end of the belt protrusion is less than a length of the partitioning portion from a fixed portion of the partitioning portion to a free end of the partitioning portion.