| 摘要 |
An image forming apparatus includes a photosensitive body (31), and a plurality of developing devices (33) to develop a color image on the photosensitive body (31). The plurality of developing devices (33) include fixing type developing devices (33C,33K), of which positions relative to the photosensitive body (31) are fixed, and moving type developing devices (33Y,33M), of which positions relative to the photosensitive body (31) are changed. Accordingly, the image forming apparatus can be manufactured compactly, by mounting four developing devices (33), e.g., for yellow, magenta, cyan and black for the color printing such that three developing devices stand by at the respective development positions and one developing device variably moves to the development position so that the photosensitive body (31) is reduced in diameter when compared to a conventional photosensitive body (31) which opposes four developing devices (33).
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