Image reader, and method and computer-readable medium therefor
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United States of America Patent
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Nov 22, 2016
Grant Date -
Aug 13, 2015
app pub date -
Feb 12, 2015
filing date -
Feb 13, 2014
priority date (Note) -
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Abstract
An image reader including a controller configured to acquire white reference data based on a signal output from a sensor that has received reflected light from a white reference member, by controlling a light source to emit light of a first quantity onto the white reference member, acquire black reference data based on a signal output from the sensor that has received reflected light from the white reference member, by controlling the light source to emit light of a second quantity lower than the first quantity onto the white reference member, acquire image data of a document sheet based on a signal output from the sensor that has received reflected light from the document sheet, by controlling the light source to emit light of the first quantity onto the document sheet, and correct the acquired image data with the acquired white reference data and the acquired black reference data.
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