Patent ID: 8180264

Claim:
An image forming unit, comprising: a developer accommodating section that accommodates developer; a developing member that has a rotation axis for rotating in the developer accommodating section, the developing member supplying developer to an electrostatic latent image on an image carrying body; a supplying member that faces to the developing member and supplies developer to the developing member; and a conveying mechanism that conveys developer in a bottom part of the developer accommodating section to an upper part of the developer accommodating section; wherein the conveying mechanism includes: a first conveying member that is furnished between the bottom part of the developer accommodating section and the developing and supplying members, the first conveying member conveying developer to an extending direction of the rotation axis and discharging the developer out of the developer accommodating section through a side wall of the developer accommodating section; a second conveying member that is furnished along the side wall of the developer accommodating section and conveys the developer discharged out of the developer accommodating section by the first conveying member to the upper part of the developer accommodating section; and a third conveying member that is furnished on the upper part of the developer accommodating section and conveys the developer conveyed by the second conveying member to the inside of the developer accommodating section.