| http://www.w3.org/ns/prov#value | - The line-image forming optical system of the optical scanning device in the fourth embodiment described with reference to FIGS. 9A and 9B is a line-image forming optical system of an optical scanning device through which a beam from the light source 101 is transformed into a beam in a predetermined style (parallel beam) by the coupling optical system 102, this beam is caused to form a line image l
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