Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ryota Kato0
Date of Patent
January 2, 2007
0Patent Application Number
099275200
Date Filed
August 13, 2001
0Patent Primary Examiner
Patent abstract
In a laser beam scanner according to the invention, L2/L1>L4/L3 is satisfied, where L2/L1 is the lateral magnification in the sub-scanning direction in an optical path from a polygon mirror to a photosensitive drum, and L4/L3 is the lateral magnification in the sub-scanning direction in an optical path from the polygon mirror to a beam detector. Accordingly, the light-receiving width of the beam detector can be reduced as compared with a conventional laser beam scanner where L2/L1=L4/L3.
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