| 摘要 |
PURPOSE:To provide the LED head which enables accurate focusing. CONSTITUTION:The LED head is equipped with a circuit board 2 where a light emitting element array 1 is mounted, a lens array 3 which converges the irradiating light from the light emitting elements 1, and a head cover 4 where the lens array 3 is fixed at a specific distance from the light emitting elements 1; and the circuit board 2 is extended lengthwise by a specific distance and a reference point 2-1 for determining the distance between a photosensitive drum 7 and the light emitting element array 1 is provided at the extension plate. |
