Patent ID: 8180260

Claim:
An image forming apparatus configured to form an image on a recording medium comprising: a developing device comprising a first developer containing unit and a developing roller, the first developer containing unit having a receiving inlet for receiving developer from outside, the first developer containing unit containing the received developer, the developing roller configured to develop a latent image formed on an image bearing member using the developer contained in the first developer containing unit; a developer cartridge comprising a second developer containing unit and a developer conveying member, the second developer containing unit containing developer and having a supplying outlet for supplying the contained developer to the receiving inlet, the developer conveying member provided at an inner side of the second developer containing unit and conveying the developer contained in the second developer containing unit to the supplying outlet, wherein the developer cartridge is detachably attached to an apparatus body of the image forming apparatus; and a vibration applying member configured to apply vibration to the second developer containing unit in a state where the developer conveying member is stopped after the developer cartridge is attached to the apparatus body and before the developer conveying member conveys the developer contained in the second developer containing unit to the supplying outlet.