Image forming apparatus for detecting misregistration amount and density
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United States of America Patent
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Mar 14, 2017
Grant Date -
Nov 14, 2013
app pub date -
Apr 23, 2013
filing date -
May 11, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
An image forming apparatus includes a control unit configured to detect a misregistration amount and densities of the toner images by detecting first and second detection patterns. The first detection pattern includes black and color portions, and the control unit is further configured to set a light-emitting amount of a detection unit, a threshold, or a sensitivity of a detection unit so that a received light amount of diffuse reflection light from the black portion is less than the threshold and a received light amount of diffuse reflection light from the color portion exceeds the threshold, and to set the light-emitting amount or the sensitivity so that the received light amount of the diffuse reflection light from the color portion is less than an upper limit of the detection unit.
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