Oki OKIPAGE 8p Maintenance Manual page 27

(3) Charging
Charging is performed by applying DC voltage to the charge roller that is in contact with the
surface of the OPC drum.
(4) Exposure
Light emitted from the LED head irradiates the negatively charged surface of the OPC drum.
The surface potential of the irradiated surface attenuates to form the electrostatic latent
image corresponding to the image signal.
High-
voltage
power
supply
High-
voltage
power
supply
LED head
Charge roller
OPC drum
Charge roller
OPC drum
Paper
2 - 15
LED head
Image drum