Theory of Operation
V
er. 1.1 Apr. 2010
12. IMAGI
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G U
N
IT SECTIO
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(charge corona)
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COMPOSITION/
OPERA
TION
12.2 Operation
• The surface of the drum is deposited with charge through corona discharge from the
drum charge corona.
• The grid mesh interposed between the corona wire and the drum ensures that a uniform
charge is deposited across the entire surface of the drum.
• The corona unit has a comb electrode that discharges only toward the grid mesh. This
results in the amount of ozone produced being smaller than with the wire electrode.
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EC529AA
Comb electrode
Grid mesh
