IMAGE FORMING DEVICE AND IMAGE FORMING METHOD

摘要

PROBLEM TO BE SOLVED: To decrease detection errors so as to properly set a density control factor in a density control technique wherein a density of a toner image formed as a patch image is detected for performing density control based on the detected result.

SOLUTION: The density control factor is optimized based on a variation rate of the patch image densities against a varied density control factor. The detected results of the patch image densities are corrected based on information on an image carrier acquired before the formation of the patch images.

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