Patent ID: 8780415

Claim:
An image reading apparatus configured to read an image of a manuscript, the apparatus comprising: a main body; a contact glass provided at an upper surface of the main body to set the manuscript thereon; an image sensor provided on a side opposite to a surface of the contact glass on which the manuscript is set, the image sensor extending in a first direction and having a reading surface which faces the contact glass to read the image from the manuscript on the contact glass; a rail member extending inside the main body in a second direction perpendicular to the first direction; a carriage which is supported by the rail member to be slidable along the second direction and contains the image sensor in a sensor container having a recess open to a contact glass side, the carriage being supported to be swingable about the rail member at a central portion thereof in the first direction, and having a taper end portion which is formed in an end portion thereof in the first direction to be smaller in height toward an end side and an opening penetrating a bottom surface of the sensor container such that an end portion of the image sensor may project downward below the bottom surface of the carriage on a side of the taper end portion; a biased portion which is provided adjacent to the reading surface of the image sensor in the second direction on the side of the taper end portion; and a biasing member provided between the biased portion and the carriage to bias the image sensor toward the contact glass via the biased portion.