Sheet feed device and image forming apparatus
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United States of America Patent
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Oct 21, 2014
Grant Date -
Oct 3, 2013
app pub date -
Mar 7, 2013
filing date -
Mar 29, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A sheet feed device includes a second detection unit which detects a state of a detection switch unit whose state is switched due to the change of state of the sheet feed device; a signal conversion unit which converts a detection signal obtained in accordance with a state of the detection switch unit into a serial signal; a communication line which connects a first detection unit of an image forming device to the second detection unit; and a signal line configured to connect the first detection unit to the signal conversion unit. When the sheet feed device is in a first state, the first detection unit receives information indicating the state detected by the second detection unit via the communication line, and thereby detects the change of state of the sheet feed device.
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