| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a photoreceptor driving apparatus capable of attaining highly accurate rotation at a low cost without installing an encoder in each photoreceptor, and to provide an image forming apparatus equipped with the photoreceptor driving apparatus. <P>SOLUTION: The photoreceptor 9 carrying a latent image is driven by a DC brushless motor 1 with a hall element through a large-diameter drum gear 2 having a rotational phase detection sensor 15, and the rotational phase is detected by the large-diameter drum gear 2 and the DC brushless motor 1 with the hall element, and the large-diameter drum gear 2 is forcibly rotated at constant velocity so as to obtain information on the hall element from the DC brushless motor 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
