| 摘要 |
PROBLEM TO BE SOLVED: To prevent a mistake from occurring at an assembling time and to manufacture a laser beam scanner motor at a low cost. SOLUTION: This motor is provided with a rotary shaft supporting a polygon mirror deflecting light and using it for scanning, a sleeve arranged so as to support the rotary shaft, a dynamic pressure generation groove formed at one out of the rotary shaft and the sleeve, a thrust disk supporting the rotary shaft in a thrusting direction at the lower end of the sleeve and a slide material made to intervene between the thrust disk and the lower end of the rotary shaft. Then, the thrust disk and the slide material are integrally constituted. |
