| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image forming apparatus carrying out an accurate density compensation in image formation by reducing the difference between density of an image for density compensation and density of an actual image in image formation. <P>SOLUTION: In the image forming apparatus, when the peripheral length of a developer carrier is L and the ratio of circumferential speed of the developer carrier to the circumferential speed of a latent image carrier is N, the density compensation image is formed with its length in the proceeding direction to be not lower than L/N. The density compensation image is detected a plurality of times by a density detection means at staggered times while being moved the distance L/N against the density detection means by carrying of a transfer belt. The image density in image formation is compensated by the image compensation means based on the average value of the density acquired by the plurality of times of detection. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
