Patent ID: 8610950
Filing Date: 2013-12-17
Classification: G06K,H04N

Abstract:
1. An image processing apparatus for causing a printing portion to print photoconductive image data, wherein the printing portion prints the photoconductive image data, based on color tone image data, on a sheet by forming the photoconductive image data in a main scanning direction of a photoconductor while rotating the photoconductor in a sub-scanning direction, comprising: a color tone image data storing medium for storing the color tone image data configured to include a plurality of color tone values of single color, wherein the plurality of color tone values are different from each other and are arranged in a sequential order; a printing procedure request portion configured to request printing of the color tone image data to the printing portion in a state where a patch row of a single color, represented by the plurality of color tone values of the color tone image data of the single color, is arranged in a direction almost parallel with the main scanning direction based on the color tone image data, wherein a distance corresponding to about half circumferential length of the photoconductor is provided in the sub-scanning direction between the neighboring patch rows; an image data obtaining portion configured to obtain scanned color tone data, showing scanned value of the patch row, from a scanning portion configured to optically scan the patch row printed on the sheet; and a parameter generating portion configured to generate a color tone correction parameter for correcting color tone value of the photoconductive image data by comparing the scanned color tone data and the color tone image data.