| 摘要 |
In an image forming device, a main controller unit (1) controls the image forming device, a motor controller unit (2) controls individually rotational speeds of a plurality of motors (20) rotating image carriers respectively, and a deviation detection unit (4,27) detects a deviation of the color image. In the main controller unit, a speed signal (CLOCK), indicating a target rotational speed for correcting the deviation, is transmitted to the motor controller unit. A speed-change enabling signal (SPEN) is transmitted to the motor controller unit after passing of a predetermined time from a time an imaging reference signal, which is indicative of a start and an end of an image region of each color, indicates an end of a corresponding image region immediately after transmission of the speed signal. |
