| 摘要 |
PROBLEM TO BE SOLVED: To prevent the tilt and the oblique advance of an entire steering roller and to make correctable the oblique advance of a photoreceptor belt by changing the inclination direction of an inclined shell by the turning angle of a shaft and correcting the oblique advance of the photoreceptor belt coming into contact with the outer periphery of the inclined shell. SOLUTION: A guide roller 130 and the steering roller 140 are rotatably provided on the outer peripheral surface of the shaft 120. The roller 130 guides the advance of the photoreceptor belt 100 in a state where a part of the outer periphery of the roller 130 comes in contact with the belt 100. The roller 130 is a hollow cylindrical roller and rotatably provided on the shaft 120 by many 2nd bearings 132 and 134. The roller 140 is provided to be inclined to the shaft 120 around the roller 130 so as to decide the inclination direction by the rotational angle of the shaft 120. Thus, the contact angle of the part of the roller 140 coming into contact with the belt 100 is adjusted and the oblique advance of the belt 100 is corrected. |
