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41388601TH Rev.2 18 /
(3) Exposure
The negatively charged surface of the OPC drum is radiated with light from the LED head.
The negative charge of the radiated portions of the drum surface attenuates in response to
the intensity of the light and a latent electrostatic image responsive to the potentials of the
surface is formed on the drum surface.
(2) Charging
Negative DC voltage is applied to the charging roller contacting the surface of the OPC drum.
Charging roller
OPC drum
Power
Unit
Power
Unit
LED head
Charging roller
OPC drum
LED head
OPC drum
Paper