| 摘要 |
A color correction circuit is best adjusted to consistently obtain a stable, color printing by compensating for a change in the characteristic of a printer under the influence of ambient temperature and humidity. Before the printing of pictorial data, e.g., an image, (reference data produced by a reference data generator), is entered into a printer engine by which it is printed out on a sheet of a paper. This printed data is read in by a color sensor, which in turn produces an output detection signal. A feedback control circuit produces a control signal necessary for a color correction according to the output signal of the color sensor and then sends it to the color correction circuit. The color correction circuit is adjusted and corrects the colors of the pictorial data to be printed. The corrected data is printed out. Repeating this process for each color printing can prevent a variation in the printed colors due to the effect of ambient temperature.
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