ENWW Image formation system 171
Image stabilization control
This controls the variation of the image density caused by an environmental change or
deterioration of the photosensitive drum, toner, etc.
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 5-54 Image stabilization control
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