| 摘要 |
PROBLEM TO BE SOLVED: To improve the cleaning workability of a reflecting means with a simple configuration. SOLUTION: This optical scanner has: a first long reflector 13 and a second long reflector 14 for returning luminous fluxes emitted from a first light source lamp 11 and a second light source lamp 12; and a returning long mirror 16 for leading reflected light from the long reflectors in a predetermined direction, and is provided with: a first frame 15 for supporting the first and second light source lamps 11 and 12 and the first and second long reflectors 13 and 14; and a second frame 17 provided detachably in the first frame 15 to support the returning long mirror 16. The second frame 17 for the first frame 15 is provided with a positioning means for positioning the returning long mirror 16 so as to lead the reflected light from the first and second long reflectors 13 and 14 in the predetermined direction. COPYRIGHT: (C)2007,JPO&INPIT
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