| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image forming apparatus, having a plurality of exposing members which allows positioned relations among the mutually exposing members to be determined accurately. <P>SOLUTION: The image forming apparatus includes a plurality of photosensitive drums 53 arranged; a plurality of LED units 40 opposed to the photosensitive drums 53, respectively, each of the LED units 40, including a plurality of light emitting parts arranged to expose the photosensitive drums 53; and the body frame 15 (side frame 15A) which is provided at both sides of the LED units 40, in the main direction where the light-emitting parts are arranged. Each of the LED units 40 includes: a guide roller 44 which abuts against the photosensitive drum 53 to define a distance between the LED unit and the photosensitive drum 53; a main-direction positioning surface 45D which abuts against the body frame 15 in the main direction to position the LED unit in the main direction; and a sub direction positioning surface 45E which abuts against the body frame 15 in a sub direction perpendicular to the main direction and positions the LED unit in the sub direction. <P>COPYRIGHT: (C)2009,JPO&INPIT |
