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Electrostatic corona effectiveness is measured at multiple points while simulating photoconductor potentials.
English (United States)
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Device and Method of Measuring Compound Corona Performance
Electrostatic corona effectiveness is measured at multiple points while
simulating photoconductor potentials.
Measuring the effectiveness of an electrostatic corona rapidly under control
of a test processor quickly identifies necessary adjustments or defective parts.
Segmenting conductive sensor plate portions on a stationary bare
photoconductor drum and placing the segments under each emission wire
permits plate biasing by a potential representing the photoconductor potential
which would normally occur at those points. By stepping or incrementing this
potential to different values, the resulting changes in effectiveness of the corona
are represented by changes in bare plate current. This makes possible a rapid
test of the total corona as it interacts with the photoconductor and may be
coupled with controls which give an operator adjustment or replacement
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