| 摘要 |
PURPOSE:To reduce the discontinuous part of image formation, by writing an image twice with different light emitting elements when the light from a light emitting element array is converged on the surface of a photoreceptor to write the image and moving a light shielding member synchronously with elements. CONSTITUTION:An image forming device 3 has plural light emitting diode (LED) array chips parallel with the axial line of a drum-shaped photoreceptor 1, and in these chips, LEDs 111-154 are arranged at equal pitches on a virtual line B parallel with the axial line of the photoreceptor 1. LEDs 151, 152, 153, and 154 are provided in just middle positions between LEDs 111 and 112, LEDs 112 and 113, LEDs 113 and 114- adjacent to each other on the virtual line B, and lenses 121-164 are arranged in accordance with LEDs 111-154. A light shielding member 17 is moved back and forth while interlocking with the lens 121 or 164. The same image due to first LEDs 111-114 is written on the surface of the photoreceptor by second lenses 161-164. |
