| 摘要 |
A color alignment adjustment method and apparatus for adjusting the color alignment of a color image forming apparatus by using patterns formed on a middle transfer belt or a photosensitive body of the color image forming apparatus are provided. The color alignment adjustment apparatus includes a sensor which radiates light onto the patterns, detects the amount of light reflected from the patterns, and outputs a signal based on the detection result, a memory which stores pattern information regarding the patterns, a variation detection unit which detects a plurality of portions of the output signal of the sensor that match the pattern information stored in the memory and calculates variations in the locations of a plurality of colors that can be printed by the image forming apparatus based on the locations of the detected portions of the output signal of the sensor and a print location adjustment unit which adjusts the locations of the colors based on the calculated variations.
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