Transporting apparatus, developing apparatus and image forming apparatus

摘要

A developing apparatus includes a developer vessel that is provided with a first transporting path, a second transporting path and a third transporting path. The first transporting path and the second transporting path are communicated with each other, and a developer is circulated in the first transporting path and the second transporting path. The third transporting path is provided in an upstream side in a transporting direction of the developer in the second transporting path. If a toner is consumed while forming an image on a paper, a toner corresponding to a consumption amount is resupplied together with a carrier from a toner cartridge to the developer vessel. A carrier and/or a developer that overflows from the second transporting path to the third transporting path is discharged from a discharge port.

主权项

1. A transporting apparatus, comprising:
a first transporting member configured to transport a developer while churning in a first transporting path in a developer vessel; a second transporting member configured to transport the developer while churning in a direction reverse to the first transporting member in a second transporting path that is arranged in parallel with the first transporting path in the developer vessel, and supplies the developer to a developer bearing member; a third transporting path that is connected to the second transporting path in an upstream side of a transporting direction of the developer by the second transporting member; and a third transporting member configured to transport the developer that overflows from the second transporting path to the third transporting path to a discharge port, wherein the second transporting path is extended toward the upstream side of the transporting direction of the developer by the second transporting member such that an upstream end of the transporting direction of the developer by the second transporting member is arranged beyond a downstream end of a transporting direction of the developer by the first transporting member.