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There are three kinds of controls executed as necessary.
● Environmental change control: The environmental condition sensor (PS15) controls the
bias according to the environmental conditions.
● Image density control (D-max): The color misregistration sensor (PS12) calibrates the
bias value when the image density is at max.
● Image halftone control (D-half): The color misregistration sensor (PS12) calibrates the
halftone data in the formatter.
Figure 5-55.
Image stabilization control
Environmental change control
This control calibrates each bias value to obtain the best image according to the
environmental changes.
178 Chapter 5 Theory of operation ENWW