DEVELOPER SUPPLY SYSTEM, METHOD FOR INSTALLING DEVELOPER SUPPLY RESERVOIR AND DEVELOPER SUPPLY UNIT

摘要

The developer supply container is detachably mounted in a developer receiving device including a developer receiving section provided with a developer receiving opening and a portion to be engaged (11b) integrally displaced with the developer receiving section. The developer supply container includes a discharge section provided with an opening of a developer discharge shutter disposed in the developer accommodating section. The working section (21) displaces the developer receiving section, bringing the receiving opening into communication with the shutter opening by engaging between the engaging portion (21d) and the intended engaging portion (11b), by a predetermined operation performed after the developer supply reservoir is installed at a predetermined position of the device receiving the developer.