Lexmark X862de - Page 51

General information 1-27
7500-432, -632, and -832
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Charge
The Charge Roll places a uniform negative electrostatic charge on the surface of the drum. The drum surface is
made of a photoconductive material that holds an electrical charge as long as the drum remains in darkness.
Light striking the drum discharges the surface charge.
HVPS
(-VDC)
(-VDC)
Ground
Conductive Tube
Photoconductive
Surface
0V
-VDC value
DRUM
Drum Surface
Voltage
Drum Surface
Image
Ground
Charge roll