Optical sensor and image forming apparatus
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United States of America Patent
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Jun 4, 2013
Grant Date -
Mar 3, 2011
app pub date -
Aug 13, 2010
filing date -
Aug 27, 2009
priority date (Note) -
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Abstract
An optical sensor includes: a light-emitting unit; a light-receiving unit that receives light radiated from the light-emitting unit and reflected from a detection target and that outputs an output value in response to the light received; and a correcting unit that corrects the output value of the light-receiving unit when receiving the light reflected from the detection target based on the output value of the light-receiving unit obtained by irradiating a detection area of the optical sensor with light without any light reflective objects being present in the detection area.
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