| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily clean a surface of a lens array of an exposing means by setting a distance between an image carrier and the exposing means with high accuracy. <P>SOLUTION: A print head 3 is configured such that a distance between the print head 3 and a photoreceptor 1 in an optical axis direction is adjusted by bringing a spacing member 306 for adjusting the distance between the print head 3 and the photoreceptor 1 in the optical axis direction into contact with a bearing holding member 103 of a photoreceptor unit. The photoreceptor unit having the photoreceptor 1 can be pulled out in a direction nearly parallel with a rotational driving shaft of the photoreceptor 1. At a contact position, a contact surface of the photoreceptor unit on which the spacing member 306 of the print head 3 abuts is an edge portion of the bearing holding member 103 and is situated on the print head 3 side closer to a light source substrate 301 than a front surface of the lens array 304 of the print head 3. <P>COPYRIGHT: (C)2012,JPO&INPIT |
