Patent ID: 8305664
Filing Date: 2012-11-06
Classification: H04N

Abstract:
1. An image forming apparatus, comprising: a plurality of color image forming units each forming an image for correction for each different color on a different paper to output a correction chart; an operation unit for accepting an input of density correction instruction information corresponding to each of the plurality of color image forming units based on the correction chart, wherein the density correction instruction information includes a correction value for each of the plurality of color image forming units; a control unit for setting color of the image for correction according to the density correction instruction information input by the operation unit, generating the image for correction for the set color, and causing the image for correction to be formed on the paper by the color image forming unit in order to output the correction chart, and the control unit generates all images for correction for colors of images to be formed by the plurality of color image forming units respectively when all the correction values are zero; and a density unevenness correction unit for correcting density unevenness of each pixel in a main scanning direction for each of the plurality of color image forming units based on the density correction unevenness information input by the operation unit.