Electrophotography – Control of electrophotography process – Control of developing
Reexamination Certificate
2007-12-04
2007-12-04
Benson, Walter (Department: 2858)
Electrophotography
Control of electrophotography process
Control of developing
C399S270000
Reexamination Certificate
active
11014902
ABSTRACT:
An apparatus for and a method of controlling a high voltage in an image forming apparatus using the high voltage with a high alternating current voltage superimposed on a high direct current voltage. The apparatus includes: a high alternating current voltage output unit outputting the high alternating current voltage; a high direct current voltage output unit outputting the high direct current voltage; and a controlling unit controlling the high alternating current voltage output unit and the high direct current voltage output unit such that the high alternating current voltage is output before the high direct current voltage when the high voltage is required for printing.
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An Seung-deog
Kim Min-seon
Benson Walter
Staas & Halsey , LLP
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