| 摘要 |
PROBLEM TO BE SOLVED: To provide an exposure device that is included in an image forming apparatus such as a copier, a printer, and a facsimile, includes a plurality of light sources linearly arranged for exposing an exposure object such as an image carrier to light, and that can adjust an exposure feasible width while keeping costs low and preventing or inhibiting image disturbance, and to provide an image forming apparatus having the exposure device. SOLUTION: Each of a plurality of pixels is formed with a group of a plurality of spots or a single spot. The barycentric position of each pixel is determined by the distribution of the spots or the position of the single spot. While the number of pixels on the exposure object is maintained in a first direction corresponding to the array direction of the light sources, an exposure feasible width on an exposure object can be adjusted in the first direction by setting the barycentric position at least in the first direction out of the first direction and a second direction that is the moving direction of the exposure object. COPYRIGHT: (C)2011,JPO&INPIT |
