Patent ID: 6710792
Filing Date: 2004-03-23
Classification: B41J,G02B

Abstract:
A multibeam scanning device, comprising:a photosensitive medium moving unit moving a photosensitive medium in a predetermined moving direction, an auxiliary scanning direction being defined as a direction opposite to the predetermined moving direction; a light beam unit that emits a plurality of light beams; a beam deflecting unit deflecting the plurality of light beams, which are modulated according to image signals, to simultaneously scan the plurality of light beams on a corresponding plurality of scanning lines that extend along a predetermined main scanning direction on the photosensitive medium, while the photosensitive medium moves in the predetermined moving direction, thereby exposing a corresponding image on the photosensitive medium, the main scanning direction being substantially orthogonal to the moving direction, the plurality of scanning lines being arranged adjacent to one another in the auxiliary scanning direction; a movement velocity detector detecting the movement velocity of the photosensitive medium along the predetermined moving direction; and a light intensity control unit controlling the light beam unit to adjust the intensity of a part of the plurality of light beams based on the detected moving velocity of the photosensitive medium.