Image forming apparatus
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United States of America Patent
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Jan 30, 2018
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app pub date -
Dec 9, 2015
filing date -
Dec 25, 2014
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Abstract
An image forming apparatus comprises a plurality of image forming units that respectively form an image, and a plurality of voltage generation circuits that respectively generate voltages for driving the plurality of image forming units. Each of the plurality of voltage generation circuits comprises a voltage generation circuit having a transformer, and generates a voltage by a switching operation that is driven by changing an input voltage of primary side of the transformer, an oscillation circuit that generates a clock signal of a frequency that becomes a reference frequency of the switching operation and a setting unit that sets the frequency of the clock signal that the oscillation circuit generates. The setting units of the plurality of voltage generation circuits set the frequencies of the respective clock signals.
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