| 摘要 |
A polygon mirror scanner motor includes rotor frame (12) having rotor magnet (13) cylindrically arranged thereon, bearing sleeve (14) fastened to the center of rotor frame (12), fixed shaft (17) having one end fixed to base substrate (19), and the other end for rotatably supporting bearing sleeve (14), and polygon mirror (11) placed on rotor frame (12). Rotor frame (12) has at least three projections (12a) on its one surface, and polygon mirror (11) is placed on the flame in abutment with projections (12a).
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