Patent ID: 7684730

Claim:
An image forming apparatus comprising: a plurality of image carriers for carrying developed images; a plurality of developer containers for containing the developer, each developer container having a developer supply port; a plurality of developing devices provided beneath the corresponding developer containers, each developing device having a developer receiving port; and an intermediate transfer unit arranged between the developer containers and the developing devices; wherein the intermediate transfer unit includes: an intermediate transfer unit for secondarily transferring primarily transferred developed images from the plurality of image carriers onto a sheet; an intermediate transfer unit driving mechanism for driving the intermediate transfer unit; and a housing for supporting the intermediate transfer unit driving mechanism, the housing comprising at one of its ends: a plurality of developer inlet ports positionally corresponding to the developer supply ports, respectively; a plurality of developer outlet ports positionally corresponding to the developer receiving ports, respectively; and a plurality of developer supply paths connecting between the developer inlet ports and the developer outlet ports respectively.