Image reading apparatus useable in a copy mode or a facsimile mode
 An image reading apparatus includes a stacking unit for stacking a plurality of originals, a separating unit for sequentially separating the original in the bottom portion among the originals on the stacking unit, a conveying unit for conveying the original which was sequentially separated by the separating unit along a conveying path, a first reading unit for reading the original surface which faces up when it is stacked onto the stacking unit when the original passes through the conveying path, a second reading unit for reading the original surface which faces down when it is stacked onto the stacking unit when the original passes through the conveying path, and a control unit for controlling the first and second reading units in accordance with a copy mode and a facsimile transmission mode, wherein the control unit allows the first reading unit to read the original in the copy mode and allows the second reading unit to read the original in the facsimile transmission mode. 
Canon Kabushiki Kaisha
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Masaaki Koji Masahiko
Saito Takahashi Yokota