Internal Process Controls - Control of Color Imaging Systems: Analysis and Design - page 531

Area of coverage

0.16

0.14

0.12

0.1

0.08

0.06

0.04

0.02

0 0

20 40 60 80 100 120 140 160 180 200

FIGURE 9.42 Area coverage disturbance shown with respect to TC update cycle.

5

Smith predictor
Target
State feedback

4.5

4

3.5

3

2.5 0

20 40 60 80 100

Print number

120 140 160 180 200

FIGURE 9.43 TC Response for a step input (3% - 4%) in the presence of time delay, actuator
limitation, and area coverage disturbance.

S OLUTION
The response to a step change in TC between 3% and 4% with area coverage
disturbance is shown in Figures 9.43 through 9.47 in the presence of time delay,
actuator saturation, area coverage disturbance, and noise. The PI controller