Patent ID: 6825865
Filing Date: 2004-11-30
Classification: B41J

Abstract:
A print head comprising:an illuminator for emitting light in a line extending in a primary scanning direction; a liquid crystal shutter for selecting whether or not light traveling from the illuminator is allowed to pass; a light emitting portion for emitting light traveling from the liquid crystal shutter toward a photosensitive recording medium; a frame having a predetermined thickness and elongated in the primary scanning direction for supporting the illuminator and the liquid crystal shutter, the illuminator being stacked on the liquid crystal shutter to provide a stack unit; and a lens array including a plurality of lenses having lens axes, the lens array being held between the stack unit and the frame with the lenses aligned in the primary scanning direction and with the lens axes extending in a secondary scanning direction perpendicular to the primary scanning direction; wherein light is emitted from the stack unit for traveling thicknesswise of the frame, the light entering the lens array after its traveling direction is changed by 90 degrees or substantially 90 degrees, the light changing its traveling direction by 90 degrees or substantially 90 degrees after the light is emitted from the lens array.