| 摘要 |
A developer storage body (60) includes a housing (61) in which a developer is stored, a shutter portion (70) mounted to the housing and having a hole portion (73) through which the developer is replenished into the housing, and a cap portion (90) covering the hole portion. The cap portion includes a structural portion (91) that constitutes an enclosure body enclosing a hollow portion (93). The structural portion is formed of a first material. The cap portion further includes a seal portion (92) that covers the structural portion to seal the hollow portion. The seal portion is formed of a second material having a lower flexural modulus than the first material. |
