| 摘要 |
There is provided a multi-beam laser scanning device able to efficiently suppress and prevent density fluctuation and achieve higher image quality. The multi-beam laser scanning device comprises a light emitting source generating a plurality of laser beams, a rotating deflector that has a plurality of deflecting surfaces. On a scanning surface, an interval between a scanning line X generated by deflection of a first deflecting surface of the deflector and a scanning line Y generated by deflection of a second deflecting surface of the deflector and adjacent to the scanning ling X satisfies at least one of the following two equations: DeltaP'<0.8.Ps DeltaP'<0.6.Ws where DeltaP' represents the difference between a maximum interval and a minimum interval between the scanning line X and the scanning line Y, Ps represents an object value of two neighboring scanning lines, and Ws represents the size of a light spot in the sub-scan direction.
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