Patent ID: 8583023

Claim:
A developer conveying apparatus comprising: a main body in which a developer is conveyed; a conveying unit that conveys the developer in the main body; and a developer storage amount detecting portion provided in the main body configured to detect a storage amount of the developer, the developer storage amount detecting portion being located above the conveying unit, wherein the conveying unit comprises: a first conveying member including a first rotation body rotatably provided in the main body and a first conveying portion having a spiral shape and provided around the first rotation body, the first conveying member having a contact portion provided on the first rotation body, and a second conveying member including a second rotation shaft rotatably provided in the main body and a second conveying portion having a spiral shape and provided around the second rotation body, the second conveying member contacting the contact portion of the first conveying member, wherein a developer retention portion is formed at a predetermined portion of the second rotation body, and wherein the developer storage amount detecting portion is provided above said contact portion.