发明名称 IMAGE FORMING APPARATUS
摘要 PROBLEM TO BE SOLVED: To detect abnormality of a part for recognizing a design pattern. SOLUTION: Test pattern data having a predetermined design pattern is generated from an image reading unit 44, input in a design recognition unit 49, presence/absence of the design pattern in the image data per unit area in the test pattern data is recognized by the design pattern recognition unit 49, its recognition result is output to the image reading unit 44, the image reading unit 44 detects that there is the abnormality in the designpattern recognition unit when the recognition result is detection of the absence of the design pattern and detects that there is no abnormality in the design pattern recognition unit 49 when the recognition result is detection of the presence of the design pattern. COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2007074520(A) 申请公布日期 2007.03.22
申请号 JP20050260850 申请日期 2005.09.08
申请人 RICOH CO LTD 发明人 WAKAHARA SHINICHI
分类号 H04N1/00;G03G21/00;H04N1/40 主分类号 H04N1/00
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