Printing System Models - Control of Color Imaging Systems: Analysis and Design - page 595

L * v s. TMA L * v s. TMA

40 40

20 20

0 0

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45

TMA TMA

a * v s. TMA a * v s. TMA

20 40

0 20

-20 0

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45

TMA TMA

b * v s. TMA b * v s. TMA

0 0

-20 -10

-40 -20

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45

TMA TMA

(i) Cyan ( C ) (ii) Magenta ( M )

L * v s. TMA L * v s. TMA

36 40

34 20

32 0

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45

TMA

TMA

a * v s. TMA a * v s. TMA

4

5

0 2

-5 0

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45

TMA TMA

b * v s. TMA b * v s. TMA

50 0

0 -5

-50 -10

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45

TMA TMA

(b) (iii) Yellow ( Y ) (iv) Black ( K )

FIGURE 10.35 (continued) (b) L*, a*, and b* plotted as a function of TMA for different

patches.

C M Y K

V g V g V g V g

Charging Charging Charging Charging

V i V i V i V i

x
Gr ay level l

x
Gr ay level l

x x

Exposure Exposure Exposure Exposure G ray level l G ray level l

0-255 0-255 0-255 0-255

V h V l V h V l V h V l V h V l

V bias
T c

V bias V bias V bias

Development Development Development Development T c T c T c

D D D D

V a V a V a V a

Transfer Transfer Transfer Transfer

TMA TMA

Processing

TMA TMA

g

Fusing Color

L * a * b *

FIGURE 10.36 Block diagram representation of the complete model of the dot printer.