Charging The Drum - Mita DP-2800 Service Manual

5A2

Charging the drum

Figure below is a simplified diagram of the electrophotographics components. Charging the
drum is done by the main charger unit marked A in the diagram.
A
B
As the drum B rotates in a "clean (neutral)" state, its photoconductive layer is given a
uniform, positive (+) corona charge dispersed by the main charger wire A.
Due to high-voltage scorotron charging, the charging wire can get contaminated by
oxidization and therefore must be cleaned periodically from time to time using the method
explained in chapter 3. Cleaning the charging wire prevents print quality problems such as
black streaks caused by the oxide ac-cumulated around the charging wire.
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