| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology for efficiently restraining rise in temperature inside a housing. SOLUTION: An optical scanner includes: a rotary shaft 111 which rotates a rotary polyhedral mirror 22; a light-deflecting device 100 having bearing shafts 120a and 120b which support the rotary shaft 111; a housing 200 which accommodates the light-deflecting device 100 and on which exposure pores for exposing the bearing shafts 120a and 120b of the light-deflecting device 100 are formed; and a heat-radiating member 300 which is arranged between the housing 200 and a main frame 30, which supports the housing 200, and are held between the bearing shafts 120a, 120b and the main frame 30 so that the heat-radiating member may contact the main frame 30. COPYRIGHT: (C)2010,JPO&INPIT |
