Patent ID: 6677971
Filing Date: 2004-01-13
Classification: B41J

Abstract:
A recording apparatus comprising:a recording medium fixing member for fixing a recording medium; a recording medium fixing member moving device for moving the recording medium fixing member by setting a moving direction of the recording medium as a main scanning direction; a light source for emitting a light beam that is expanded one-dimensionally toward the recording medium fixing member; and an optical shutter device positioned between the light source and the recording medium fixing member and constructed by aligning at least one-dimensionally a number of optical shutters that control passing and reflection of the light beam, whereby recording of the recording medium is carried out by the light beam that is passed through the optical shutters; wherein pixel shapes formed by respective optical shutters are set to almost rectangles and also &thgr;1&lE;&thgr;2 is satisfied, where &thgr;1 is an angle between a line D connecting an upper right portion A of an n-th pixel and a lower left portion B of an n+1-th pixel and a line E connecting the lower left portion B of the n+1-th pixel and an upper left portion C of the n+1-th pixel, and &thgr;2 is an angle between a one-dimensional alignment direction of the optical shutters that are inclined along the main scanning direction and a sub-scanning direction.