发明名称 COLOR PRINTER AND CONTROL METHOD THEREOF WITH PULSE WIDTH MODULATION FOR TONE CONTROL BASED ON TYPE OF DOCUMENT AND NUMBER OF COLORS PRINTED
摘要 A color printing apparatus having pulse-width modulation means which performs pulse-width modulation for tone control, and a control method thereof are provided. Based on determination of a printing mode of printing data supplied and determination of whether or not the printing data is to be processed as single-color data, a pulse-width modulation pattern to be used by the pulse-width modulation means is decided.
申请公布号 US2009021756(A1) 申请公布日期 2009.01.22
申请号 US20080234251 申请日期 2008.09.19
申请人 CANON KABUSHIKI KAISHA 发明人 MURAMATSU MIZUKI
分类号 B41J2/44;G06F15/00;G03G15/01;G03G21/00;G06K15/12;H04N1/23;H04N1/46 主分类号 B41J2/44
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