Printing System Models - Control of Color Imaging Systems: Analysis and Design - page 559

40

30

20

10

0 0

200 400

V p (V)

600 800

FIGURE 10.4 Actual current vs. voltage response curve for the scorotron charging system
(V w ¼ 6000 V, V g ¼ 800 V, and V s ¼ 0).

1.5

1

0.5

0 -1

0 1 2 3 4

x (cm)

FIGURE 10.5 Current density with respect to photoconductor position.

where
e r is the PR (photoreceptor) relative permittivity
e 0 is the free air permittivity
d is the PR thickness

Equation 10.1a becomes

C d V p

I p
L j ( x ) ¼ S ( V g V p )

1
L j ( x )

d t ¼ J ( x ) ¼

( 10 : 2 )