| 摘要 |
PROBLEM TO BE SOLVED: To improve a rotary performance, etc., of a rotary polygon mirror by connecting a rotor to a rotary sleeve with calking. SOLUTION: The rotary polygon mirror 1 is pressurized to the rotary sleeve 3 integrated with a flange 4 by an elastic press mechanism 6 to be integrated with the rotary sleeve 3. The rotor 5 of a motor rotating the rotary polygon mirror 1 is connected to the rotary sleeve 3 by calking a calking part 4a provided on the flange 4. A relief part 4b is provided adjacent to the calking part 4a, and the deformation of the bearing surface of the rotary sleeve 3 by calking is avoided. |
