| 摘要 |
When a control part is restarted, an average of a stored standard operation quantity and a stored operation quantity immediately before a stop of the control part is calculated. The average operation quantity (for instance, laser power) is applied to an image output part, and a resulting control quantity (for instance, a development density) is measured. A control rule retrieval unit calculates adaptabilities of respective control rules with respect to the measured control quantity, thereby synthesizing an application control rule. A new operation quantity is determined based on the application control rule and an error of the measured control quantity from a target value.
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