| 摘要 |
PROBLEM TO BE SOLVED: To provide an erasing exposure device capable of making a boundary between an irradiation area equivalent to the margin of a recording medium and a non-irradiation area equivalent to an image forming area a straight line. SOLUTION: Plural LEDs 82 are arranged in a direction orthogonal to the rotating direction (direction shown by an arrow B) of a photoreceptor drum 32 so that they may face the photoreceptor drum 32. Besides, each opening 88 is partly formed in a light shielding wall 86 so that it may face each LED 82. The opening 88 is formed to a rectangular shape where two sides among four sides constituting the opening 88 are curved inwards. |
