发明名称 Selective enhancement of black
摘要 A printing technique wherein pixel locations that are requested to be marked with only black are identified, black is applied to the identified pixel locations, and non-black color is applied to those identified pixel locations that (A) have an associated black half-tone threshold level that is darker than a predetermined non-white threshold level, and (B) correspond to on-pixels of a reference pattern of non-black color pixels having an on-pixel population of at least 20 percent and a toner transfer efficiency of less than about 20 percent.
申请公布号 US2004081497(A1) 申请公布日期 2004.04.29
申请号 US20020280223 申请日期 2002.10.25
申请人 XEROX CORPORATION 发明人 KROON STEPHEN M.
分类号 B41J2/525;G03G13/01;G03G15/01;G06T5/00;H04N1/29;H04N1/405;H04N1/52;(IPC1-7):B41J9/44 主分类号 B41J2/525
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