Development device, cartridge, and image forming apparatus

A development frame body includes a concave portion, which is projected in a direction along an upward direction of a gravitational direction, and which is located at a downstream side of a communication port and an upstream side of a replenishing port, the concave portion and the replenishing port...

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Bibliographic Details
Main Authors Sunahara, Satoshi, Oshima, Nobuo
Format Patent
LanguageEnglish
Published 11.05.2021
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:A development frame body includes a concave portion, which is projected in a direction along an upward direction of a gravitational direction, and which is located at a downstream side of a communication port and an upstream side of a replenishing port, the concave portion and the replenishing port overlap with each other in an axis direction of a shaft portion when viewed in a direction orthogonal to the axis direction, a relationship R1≤L is satisfied, when a free length of the sheet portion is L and a distance from a rotation center of the shaft portion to an inner wall face is R1, and slit portions are formed in a free end of the sheet portion so that a section of the free end of the sheet portion can enter the concave portion when an agitation member is rotated.
Bibliography:Application Number: US202016997353