| 摘要 |
PROBLEM TO BE SOLVED: To provide a developer storage container that reduces deformation of openings when a sealing member is peeled off from a flexible container around the openings, and reduces a load necessary for the peel-off; and to provide a developer storage container that avoids inhibition of developer dischargeability.SOLUTION: A developer storage container 26 is for storing developer, and includes: a flexible container 16 having openings 35a for discharging developer; a sealing member 19 that seals the openings 35a while being attached to the circumference of the openings 35a, and is peeled off to expose the openings 35a; and reinforcement units 35c that are provided on at least a part of the circumference of the openings 35a to reduce deformation of the openings 35a. |
