Patent ID: 7817943

Claim:
A developer transport apparatus comprising: a first developer-containing unit that contains a developer; a first developer transport member disposed in the first developer-containing unit, the first developer transport member transporting the developer in a first direction; a second developer transport member disposed downstream from the first developer transport member in the first direction, the second developer transport member transporting the developer in the first direction and having a lower capability of transporting the developer than that of the first developer transport member; a developer discharge unit disposed in the first developer-containing unit, the developer discharge unit discharging the developer transported by the second developer transport member from the first developer-containing unit; and a second developer-containing unit that contains the developer discharged from the developer discharge unit; wherein the first developer transport member and the second developer transport member rotate in the same axis; the first developer transport member and the second developer transport member are overlapped in a direction of transporting the developer in the first developer-containing unit; and the second developer transport member is disposed more downstream than a downstream end portion of the first developer transport member in the first direction of the first developer transport member.