Patent ID: 6191805
Filing Date: 2001-02-20
Classification: B41J

Abstract:
An optical printer head comprising:a first luminous element including a first plurality of luminous dots for a first color which have a first predetermined dimension in a sub-scanning direction and a second predetermined dimension in a main scanning direction wherein said first and second predetermined dimension are equal so that the first plurality of luminous dots are squared shaped said first plurality of luminous dots being spaced from each other in the main scanning direction; anda second luminous element including a second plurality of luminous dots for a second color which have a third predetermined dimension in the sub-scanning direction and a fourth predetermined dimension in the main scanning direction, wherein said third predetermined dimension is greater than the fourth predetermined dimension so that said second plurality of luminous dots are elongated in the sub-scanning direction, said second plurality of luminous dots being spaced from each other in the main scanning direction; anda reduction optical system for carrying out irradiation of light emitted from said second plurality of luminous dots of said second luminous element while reducing a dimension of the light in the sub-scanning direction.