Abstract: An image reading apparatus equipped with an image reading apparatus unit (B) provided a platen (33) and reading means (31) that reads an original, a document feeder (A) provided conveyance paths (P1), (P2), and (P3) leading from a sheet supply tray (1) to a discharge tray (34) via the platen (33) on a top surface of the image reading apparatus unit (B), a hinge device (12) that openably connects the document feeder (A) to a top surface of the image reading apparatus unit (B), wherein an image reading unit (50) is equipped in the document feeder (A), and the image reading unit (50) is integrally connected to a support member fastened to the hinge device (12). This configuration prevents mispositioning or misalignment of a reading line of the image reading unit (50) caused by repeated opening and closing of the document feeder (A).

Abstract: An image reading apparatus equipped with an image reading apparatus unit (B) provided a platen (33) and reading means (31) that reads an original, a document feeder (A) provided conveyance paths (P1), (P2), and (P3) leading from a sheet supply tray (1) to a discharge tray (34) via the platen (33) on a top surface of the image reading apparatus unit (B), a hinge device (12) that openably connects the document feeder (A) to a top surface of the image reading apparatus unit (B), wherein an image reading unit (50) is equipped in the document feeder (A), and the image reading unit (50) is integrally connected to a support member fastened to the hinge device (12). This configuration prevents mispositioning or misalignment of a reading line of the image reading unit (50) caused by repeated opening and closing of the document feeder (A).