| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an image forming device that reduces color shift by simple control without forming an image for detecting speed change. <P>SOLUTION: An image forming device includes: photoreceptor drums 2a-2d; a first drive motor 301 for rotating and driving the photoreceptor drum 2d; a second drive motor 302 for rotating and driving the photoreceptor drums 2a-2c; and a control part 201 that detects an error in rotation phase difference between the photoreceptor drum 2d and a drum for comparison which is one of the photoreceptor drums 2a-2c to accelerate or decelerate the first drive motor 301 or the second drive motor 302 so that the detected error falls within a tolerance range. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
