Image forming apparatus and pattern reading apparatus
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United States of America Patent
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Oct 2, 2018
Grant Date -
Aug 16, 2018
app pub date -
Apr 12, 2018
filing date -
Sep 6, 2016
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Abstract
An image forming apparatus comprises a sensor which emits light with a spot diameter serving as a predetermined size to a pattern for position detection formed on a transfer medium conveyed by a conveyance section, and outputs a read signal corresponding to reflected light of the emitted light; a processing circuit which generates a differential signal obtained by differentiating the read signal output by the sensor, and outputs a signal obtained through an exclusive OR of the read signal and the differential signal obtained by differentiating the read signal; and a control section configured to specify a position at which a image forming section forms a image on the basis of the signal output by the processing circuit.
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