Patent ID: 6618071
Filing Date: 2003-09-09
Classification: B41J

Abstract:
An exposure device comprising:a plurality of light emitting sections which emit laser beams on the basis of respective image signals; a deflecting/scanning section which deflects the plurality of laser beams emitted from the corresponding light emitting sections and scans an image carrier with the exposure beams to form latent images on the image carrier on the basis of respective image signals; a pre-deflection optical system which allows the laser beams emitted from the plurality of light emitting sections to be combined and the combined beams to be conducted to the deflecting/scanning section; and a single common optical member provided at a position downstream of the pre-deflection optical system along an optical path of the laser beams but upstream of the deflecting/scanning section to allow the combined beams to be passed and a cross-sectional configuration of the combined beams to be shaped, wherein the single common optical member allows the cross-sectional configuration of the combined beams to be shaped in a main scanning direction only in which the scanning of the deflecting/scanning section is performed.