PRINT CALIBRATION PROCESSING APPARATUS, IMAGE FORMING APPARATUS, PRINT CALIBRATION PROCESSING METHOD, AND IMAGE FORMING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a print calibration processing apparatus capable of preventing image quality deterioration caused by lining of an image to be printed on a printing paper sheet.

SOLUTION: A print calibration processing apparatus has: a test image output section for outputting a plurality of patches with different densities for gradation property generation to an image forming section as a test image; a gradation property data generation section for generating gradation property data of a print side and a rear side by reading images on the print side and the rear side of a test chart obtained by printing the test image on a printing paper sheet through the image forming section; a gradation correction data creation section for determining a correction value of maximum gradations based on a gradation property on the print side and a gradation property on the rear side generated by the gradation property data generation section; a gradation correction data storage section for storing the gradation correction data created by the gradation correction data creation section; and a gradation correction section for gradation-correcting image data to be outputted to the image forming section in accordance with the gradation correction data stored in the gradation correction data storage section.

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