| 摘要 |
PURPOSE: An electrophotographic color image forming system is provided to reduce impact and pressurization deviation between a photosensitive drum and each developing roller to form an image with high quality. CONSTITUTION: An electrophotograhic color image forming system includes bracket slides(54). Each of the bracket slide has a tension spring(S1,S2,S3,S4) that alleviates impact generated when a developing roller(R1) and a photosensitive drum(40) come into contact with each of developing devices(42,44,46,48). The tension springs make normal forces that the photosensitive drum receives from the developing rollers identical in a predetermined range irrespective of relative position of the developing devices with respect to the photosensitive drum.
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