| 摘要 |
<p>A control apparatus (404, 406, 410) for controlling an image forming apparatus (100) specifies a colour measurement area in image data, obtains a measured colour of the colour measurement area of a multi-colour toner image of the image data, constructs an algorithm for control parameter correction, and determines a correction value of a control parameter of the image forming apparatus (100) so as to make the difference between the measured colour and an expected colour to be smaller.
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