【目的】 ＡＤＦを有する読取装置において、圧板をシ ンプルかつ軽量に構成し、操作性および安全性を向上さ せる。
【構成】 ブック原稿を押さえる圧板２とシート原稿を 分離可能な分離部３を分割して配置する。この圧板２の 上面にはリブ１５を有し、シート原稿セット用のテーブ ルとして用いる。また、密着センサ１のブックモード時 の移動範囲（位置１ｂ〜１ｃ）とシートモード時の固定 位置１ａとの中間に、白基準として用いる部材４を設け る。
PURPOSE: To provide a reader provided with an ADF including a light-weight pressing plate part with improved operability by separately arranging a sheet original separation means and a pressing plate for pressing a book original.
CONSTITUTION: This reader is constituted of a movably constituted contact sensor 1, the pressing plate 2 for pressing the original, a separation part 3 for separating the plural sheets of the original one by one, a member 4 to be a white reference, a recording part 5, a control part 6 for performing the control of the entire reader such as the setting of a book mode and a sheet mode and the control of the recording part 5, etc., a power source part 7, a press roller, a base 17 and a cover 18, etc. By such constitution, in the case of reading the book original, the pressing plate 2 is pushed up, the book original is set at a prescribed position (set on the original size mark of the member 4) on a contact glass 16, the pressing plate 2 is pushed down, the original is fixed and then, the contact sensor 1 is moved between the positions 1h-1c, the lower surface of the member 4 as the white reference is used and read is performed in the recording part 5.