发明名称 An image reading apparatus.
摘要 <p>There is disclosed an image reading apparatus for photoelectrically reading an image used for facsimile apparatus, digital copying machines, etc. The image reading apparatus includes a reading unit for reading an image on an original at a reading position, a reference member provided at the reading position, a memory unit for storing reference data obtained by reading the reference member with the reading unit, a discriminating unit for discriminating whether or not the original exists at the reading position and a control unit for causing the memory unit to store the reference data. &lt;IMAGE&gt;</p>
申请公布号 EP0451845(A2) 申请公布日期 1991.10.16
申请号 EP19910105791 申请日期 1991.04.11
申请人 CANON KABUSHIKI KAISHA 发明人 ISHIKAWA, YUJI, C/O CANON KABUSHIKI KAISHA
分类号 H04N1/00;H04N1/401 主分类号 H04N1/00
代理机构 代理人
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