The paper is further advanced in synchronization to the print data.
(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.