A color image forming apparatus includes an image forming section that is configured to adopt an intermediate transfer system for three colors of cyan, magenta and yellow, and a direct transfer system for black. A transfer medium is conveyed to a transfer medium convey belt. Cyan, magenta and yellow are intermediately transferred by an intermediate transfer belt and a secondary transfer roller. Black is directly transferred by a black photoconductor body and a transfer roller. Toners of the respective colors are fixed by a fixing device.