Ref. 2-21 Confidential
3.5.2 Print Process
(1) Charging
The flow of the ion charge is controlled by a constant voltage of the corona wire (850V) and
the grid is to ensure it is evenly distributed on the drum surface. In order for the laser to
create a latent image on the drum, the drum needs to be evenly charged. Ions are produced
by supplying high-voltage power to the corona wire.
Fig. Ref. 2-20
Memo :
The level of ozone expelled from the machine is less than 3.0 mg/h therefore not harmful to
the human body. Applicable safety standards have been complied with.
Corona wire
Ion
Grid
Exposure drum
