| 摘要 |
The image forming apparatus having a plurality of developing devices corresponding to a plurality of colors includes at least a predetermined color for developing an electrostatic image as toner images, an image bearing member bearing thereon the toner images developed by the plurality of developing devices, and collecting means for collecting toners residual on the image bearing member after the toner images of the respective colors formed on the image bearing member have been respectively transferred onto a recording material has a relationship that of the collected toners with plural colors mixed together therein, any colors except the predetermined rate to thereby provide the predetermined color in a pseudo fashion, and has changing means capable of supplying the collected toners and the toner for the predetermined color to the developing device for the predetermined color, and changing the mixing ratio of the collected toners and the fresh toner for the predetermined color supplied to the developing device for the predetermined color, in conformity with the ratio of the toners of the respective colors constituting the toner of the pseudo predetermined color occupied in the collected toners.
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