Patent ID: 7760215
Filing Date: 2010-07-20
Classification: B41J

Abstract:
1. A line head, comprising: a substrate which is transmissive and includes a first surface and a second surface facing the first surface; a plurality of light emitting elements which are arranged on the first surface of the substrate and emit light beams; a wiring which is arranged on the first surface of the substrate and is connected with the plurality of light emitting elements; a lens array that includes a plurality of imaging lenses which are arranged at a side of the second surface of the substrate, face the light emitting elements, and focus the light beams emitted from the facing light emitting elements to form spots; an optical sensor which detects the light beams emitted from the light emitting elements and is arranged on the second surface of the substrate; and a reflection film which is arranged between the first surface of the substrate and the wiring arranged in an area of the first surface extending from the light emitting elements toward the optical sensor.