| 摘要 |
PROBLEM TO BE SOLVED: To provide a deflection scanner in an image forming apparatus, the deflection scanner in which the shaft falling-down error of a rotating polygon mirror is compensated by a simple structure and means. SOLUTION: The rotating polygon mirror is composed as a rotating polygon mirror unit obtained by fixing to an attaching member a driving motor in which the rotating polygon mirror is attached to a shaft of the driving motor, the rotating polygon mirror unit is composed so that it can be fixed to the main body of the image forming apparatus at an optional angle around the shaft of the motor, and a means is provided to indicate the shaft falling-down direction of the shaft of the motor. COPYRIGHT: (C)2006,JPO&NCIPI |
