| 摘要 |
PROBLEM TO BE SOLVED: To provide a color image forming device capable of obtaining an outputted image of high quality with inconspicuous color slippage at a low cost. SOLUTION: Photoreceptor drums 3Y and 3M are driven by the same motor M3 via a timing belt B3. Thus, the number of motors and timing belts in use is reduced. Then, the rotating speed of the photoreceptor drum 3M is detected by an encoder 11M, and the feedback control of the output of the motor M3 is executed based on the detected speed signal. Additionally, the rotating speed of the photoreceptor drums 3K and 3C are detected separately by encoders 11K and 11C, and the feedback control of the outputs of the motors M1 and M2 is executed based on the respective detected speed signals. Thus, color slippages other than yellow one is reduced, since the color slippages other than the yellow is inconspicuous, so that a full color image of high quality with inconspicuous color slippages as a whole is outputted. |
