Developer container, developing device, process cartridge, toner container, sub-hopper, and image forming apparatus which have multiple partitions disposed between a first housing and a second housing

A developer container, comprising:

• a first housing to store developer;
• a rotator rotatable to draw an imaginary first rotation trajectory in the first housing;
• a second housing to store the developer, the second housing communicating with the first housing;
• a developer conveyor in the second housing to convey the developer from the second housing to the first housing,
• the developer conveyor including:
• a rotation shaft;
• and
• a flexible sheet extending from the rotation shaft in a radial direction, and
• the developer conveyor rotatable about the rotation shaft to draw an imaginary second rotation trajectory, the imaginary second rotation trajectory overlapping at least a part of the imaginary first rotation trajectory under an imaginary condition in which the flexible sheet does not contact any member and does not bend;
• and
• multiple partitions disposed between the first housing and the second housing and arranged at intervals in a rotation shaft direction,
• wherein:
• the multiple partitions are contactable by the flexible sheet rotating around the rotation shaft,
• the multiple partitions are components different from the first housing and the second housing and disposed between a bottom of the first housing and a bottom of the second housing, and
• a height from a bottom of the first housing to a top of each of the multiple partitions is equal to or greater than a height from the bottom of the first housing to a top of the imaginary first rotation trajectory of the rotator.

A developer container, comprising:

• a first housing to store developer;
• a rotator rotatable to draw an imaginary first rotation trajectory in the first housing;
• a second housing to store the developer, the second housing communicating with the first housing;
• a developer conveyor in the second housing to convey the developer from the second housing to the first housing,
• the developer conveyor including:
• a rotation shaft;
• and
• a flexible sheet extending from the rotation shaft in a radial direction, and
• the developer conveyor rotatable about the rotation shaft to draw an imaginary second rotation trajectory, the imaginary second rotation trajectory overlapping at least a part of the imaginary first rotation trajectory under an imaginary condition in which the flexible sheet does not contact any member and does not bend;
• and
• multiple partitions disposed between the first housing and the second housing and arranged at intervals in a rotation shaft direction,
• wherein:
• the multiple partitions are contactable by the flexible sheet rotating around the rotation shaft,
• the developer container further comprises multiple flexible sheets including the flexible sheet, the multiple flexible sheets disposed at intervals on the rotation shaft in the rotation shaft direction, and
• the multiple flexible sheets extend separately in at least two different radial directions.