| 摘要 |
PROBLEM TO BE SOLVED: To provide a color image forming device capable of preventing slippage of the superimposition of toner images of different colors due to temperature changes and capable of obtaining a satisfactory image which is flee of color slippage and has satisfactory resolution. SOLUTION: Based on the temperature of the drive roller 1 for a belt photoreceptor 10 or that of each of image exposure optical systems 12, the moving speed of the belt photoreceptor 10 is adjusted by altering the rotating speed of the drive roller 1 of the belt photoreceptor 10. Alternatively, the timing of image exposure in the exposing position of each of the image exposure optical systems 12 is altered. Change in the moving speed of an image forming body due to temperature change and color slippage due to temperature changes between the exposure means are prevented by the alteration of the rotating speed of the drive roller 1 or the alteration of the timing of the light emission of each exposure optical system 12. Thus, the color image forming device capable of satisfactory color-image-formation which is flee of color slippage and has high resolution can be provided. |
