发明申请
- 专利标题： Image forming apparatus with specific document determining module and abnormality detection means
- 专利标题（中）： 具有特定文件确定模块和异常检测装置的图像形成装置
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申请号： US10640021申请日： 2003-08-14
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公开(公告)号： US20040046988A1公开(公告)日： 2004-03-11
- 发明人: Yutaka Hasegawa , Takeshi Ukai , Hideaki Yamagata , Kazuhisa Ohtsubo , Mamoru Maeda
- 优先权： JP8-284396 19961025; JP8-284397 19961025; JP8-289894 19961031; JP8-289895 19961031; JP8-294194 19961106
- 主分类号： H04N001/40
- IPC分类号： H04N001/40 ; G06K015/02 ; G06T007/00 ; G06F009/00 ; G06F003/12
摘要：
The present specific document determining apparatus according to the present invention comprises a microwave sensor for irradiating a microwave to and scanning a document, detecting a reflected portion of the irradiated microwave, outputting a first detection signal, again irradiating a microwave and scanning the document after the document is placed on a contact glass, detecting a reflected portion of the irradiated microwave, and outputting a second detection signal; a signal processing section for using the first detection signal as a reference signal and comparing a level of the reference signal to a level of the second detection signal to make determination as to whether metallic fiber is included in the document or not, and a controller for making determination as to whether the document is a specific one or not according to a result of determination by the signal processing section.
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