| 摘要 |
An image forming apparatus includes a first developing device and a second developing device for developing an electrostatic latent image formed on an image bearing member and a developing portion; a rotatable member supporting the first and second developing devices, the rotatable member being rotatable along a path through the developing portion; a first developer supply container and a second developer supply container, supported on the rotatable member, for supplying developer into the first developing device and into the second developing device; wherein the developer in the first developer supply container is fed using rotation of the rotatable member, whereas the developer in the second developer supply container is fed without using rotation of the rotatable member.
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