| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a belt driving device equipped with a detection device capable of cleaning a sensor without a user being aware of it in particular with a simpler configuration, an alignment controller and an image forming apparatus. <P>SOLUTION: The belt driving device for rotationally driving a belt stretched between a plurality of rollers by the at least one or more rollers thereof is provided with a sensor 103 for detecting a detection object on the same periphery installed to the belt 60, wherein a brush 20 for cleaning the dirt on a detecting surface 104 of the sensor 103 is mounted on the belt 60. <P>COPYRIGHT: (C)2007,JPO&INPIT |
