Patent ID: 8488212

Claim:
An image reading apparatus comprising: a sheet feeding device; a sheet feeding section that controls transport of an original document performed by the sheet feeding device; a reading section that outputs image data by reading the original document; a carriage that is equipped with the reading section; a carriage control section that controls movement of the carriage; a buffer that temporarily stores the image data; and a monitoring section that monitors a volume of the image data stored in the buffer, wherein when the monitoring section determines that the volume of the image data is more than a predetermined first threshold value, the sheet feeding section decelerates and stops the transport of the original document, the carriage control section accelerates the carriage in a direction opposite to the transport of the original document during a deceleration period of the transport of the original document, and the reading section successively reads the original document before start of the deceleration period of the transport of the original document and during the deceleration period.