Patent ID: 7742709
Filing Date: 2010-06-22
Classification: G03G

Abstract:
1. A developer cartridge comprising: a developer container, wherein the developer cartridge, when attached to an image forming apparatus for use, supplies a developer in the developer container to the image forming apparatus for development; a communication unit provided inside the developer container and capable of communicating with the image forming apparatus, wherein a communication state between the communication unit and the image forming apparatus varies depending on an amount of the developer in the developer container; a rotating shaft which rotates in the developer container; and a bendable member which rotates together with the rotating shaft with one side being fixed to the rotating shaft, wherein the communication unit is placed in a location, inside the developer container, which enables the communication unit to get in contact with the bendable member along the rotation of the rotating shaft and to communicate with the image forming apparatus while the developer cartridge is attached to the image forming apparatus, when the amount of the developer in the developer container exceeds a predetermined amount, the bendable member does not get in contact with the communication unit due to intervention of the developer and a preferable communication state of the communication unit is secured, and when the amount of developer in the developer container is lower than the predetermined amount, the bendable member gets in contact to move the communication unit and the communication state deteriorates due to the movement of the communication unit.