Patent ID: 6118464
Filing Date: 2000-09-12
Classification: G02B,H04N

Abstract:
A beam scanning apparatus for an electrophotographic color printer comprising:at least two beam deflectors for deflecting and scanning respective incident beams, each of said at least two beam deflectors having a deflection disk consisting of at least two sectors and a driving source for rotating said deflection disk, said deflection disk having a pattern formed thereon for diffracting and scanning the respective incident beams;a plurality of light sources, arranged between said beam deflectors and a photoreceptor, for emitting light to said respective deflection disks;beam path changing means for changing respective proceeding paths of the beams deflected by said respective beam deflectors to proceed toward the photoreceptor; andbeam correcting means, arranged between said respective beam deflectors and the photoreceptor, for correcting the respective beams having their paths changed by said beam path changing means.