Patent ID: 6559880
Filing Date: 2003-05-06
Classification: B41J,G03F

Abstract:
A scan-exposure device for irradiating a recording medium disposed on a cylindrical support, the scan exposure device comprising:(a) a light source stage having opposite end portions in a sub-scanning direction, which is a direction substantially parallel to the axial direction of the support, and a plurality of light sources operable for producing light beams arrayed in a line thereon for irradiating a recording medium disposed on the support; (b) a pair of bases, with one base supporting the stage in a vicinity of one end portion of the stage, and the other base supporting the stage in a vicinity of the other end portion, each of the bases being coupled to the stage via a positioning mechanism, each positioning mechanism moving the corresponding end of the stage toward or away from the support in a direction substantially perpendicular to the sub-scanning direction independent of the other positioning mechanism; and (c) guide rails supporting the pair of bases by way of sliders attached to the bases, such that pair of the bases are movable, relative to one another, in the sub-scanning direction.