| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve the quality of an image by eliminating the adverse effect of an unevenness in the luminous intensity of a light emitting element, in a device for forming an image using plural light emitting elements. SOLUTION: An image processing device 30 loads in the memory the multivalued data di of an image signal 40 from an external source, then reads a weight factor based on the data relative to the previously measured luminescent intensity of each of LEDs of an LED array, and multiplies the multivalued data di by the weight factor of each of the corresponding LEDs to perform the binary processing of data relative to the calculation result by an error dispersion method. Further, the two-valued signal obtained by this binary processing is connected to an LED driver 20, and the light emitted by each of the LEDs of the LED array is switched ON/OFF to form a latent image on a latent image carrier moving in an orthogonal direction with the LED array 10. In addition, the latent image is developed by a publicly known electrophotographic recording method, and then is transferred to a recording paper. Finally, the paper is thermally fixed and discharged.</p> |
