Image forming apparatus
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United States of America Patent
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Feb 17, 2015
Grant Date -
Apr 18, 2013
app pub date -
Sep 5, 2012
filing date -
Oct 14, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides an image forming apparatus that forms a test pattern for controlling the amount of color material, suppresses increase of the color material amount, and prevents image defects such as spattering, poor fixation due to granularity, or the like. To accomplish this, the image forming apparatus forms a test pattern on printing material using color material of a plurality of colors, reads the formed test pattern, and controls the color material amount of each color by changing an image forming condition in accordance with a result of the reading. Note that the image forming apparatus forms a mixed pattern image using color material of a plurality of chromatic colors, and controls the amount of color material of a single color based on the mixed pattern image.
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Cited Art Landscape
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