IMAGE FORMING APPARATUS, POWER SUPPLY DEVICE, AND IMAGE FORMING METHOD
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United States of America Patent
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Issued Date -
Dec 29, 2016
app pub date -
Nov 17, 2015
filing date -
Jun 26, 2015
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Abstract
An image forming apparatus includes an image forming unit, a power supply switching unit, a switching unit, a switch detecting unit, and a controller. The image forming unit forms an image. The power supply switching unit switches the image forming unit between a power supplied state and a power shut-off state. The switching unit outputs a signal when operated by a user. The switch detecting unit detects the signal output by the switching unit, and transmits a power off signal to the power supply switching unit. The controller receives the signal output by the switching unit, and if normally operating, transmits a signal that invalidates the power off signal or a signal that prevents the transmission of the power off signal.
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