| 摘要 |
PROBLEM TO BE SOLVED: To attain both of high image quality in a color mode and high speed in a black and white mode, in an image reading apparatus provided with a mode switching means capable of switching the color mode and the black and white mode. SOLUTION: This image reading apparatus includes the mode switching means which switches the color mode of reading a document as a color image and the black and white mode of reading the document to be read as a black and white image, and is provided with a speed switching means which switches the reading speed of the document in accordance with a mode to be switched by the mode switching means.
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