| 摘要 |
PROBLEM TO BE SOLVED: To provide a developer storage unit that has a long life without increasing the size of an image forming apparatus, and to provide the others.SOLUTION: A developer storage unit for storing developer comprises: a sealing member having an opening for discharging developer and storing developer, the sealing member configured to seal an opening; and a frame body 40 having a first frame body 17 and a second frame body 18, accommodating the developer storage container 26 in a space defined by fitting the first frame body 17 to the second frame body 18, and storing developer discharged from the developer storage container 26 unsealed. In the developer storage container 26, a longitudinal end part is brought into a second state in which the longitudinal end part enters in the direction E in which the first frame body 17 is fitted to the second frame body 18, compared to a first state in which no external force is exerted. |
