Image forming apparatus and image forming method with reduced color material usage
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United States of America Patent
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Dec 30, 2014
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app pub date -
Oct 25, 2012
filing date -
Nov 2, 2011
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Abstract
This invention provides an apparatus and method capable of strictly keeping to a preset toner consumption amount and maintaining an image quality the user wants. A target toner save value used in toner save processing is set. In accordance with the set target toner save value, toner save processing is performed for data of the first page of image data formed from a plurality of pages. A toner save amount before and after toner save processing is calculated, and the difference value between the calculated toner save amount and the set target toner save value is calculated. Target toner save values for data of Nth and subsequent pages (N is an integer of 2 or more) of the image data formed from a plurality of pages are decided based on the calculated difference value of the target toner save value.
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