| 摘要 |
<P>PROBLEM TO BE SOLVED: To precisely align a rotary moving part of a rotor or an image on a transfer material conveyed by the rotary moving part, in an image forming device provided with the rotor for image formation such as a photosensitive material belt and an intermediate transfer belt. <P>SOLUTION: A moving amount of the rotary moving part of the rotor and a moving position thereof are controlled accurately using this reflection type photosensor of the present invention, which has a light projection part for irradiating a detection object with an incident light brought into parallel light at a prescribed angle θ with respect to the object, and a photoreception part for receiving a reflected light reflected by the detection object to be photoelectric-transferred, and is provided with a transparent member having a light guide face of turning a reflected light reflected on a surface of a light projection part side aside from the photoreception part, between the light projection part/the photoreception part and the detection object. <P>COPYRIGHT: (C)2007,JPO&INPIT |
