Patent ID: 7903297

Claim:
A document reading apparatus capable of conveying a document having a series of sheets along a conveyance path and reading each sheet of the series at a predetermined reading position on the conveyance path, the document reading apparatus comprising: a conveying unit configured to continuously convey the document along the conveyance path; a reading unit configured to obtain image data by reading a sheet of the series at the predetermined reading position; a storage unit configured to store the image data obtained by the reading unit; and a transfer unit configured to transfer the stored image data to a transfer destination, wherein the transfer unit transfers the image data to the transfer destination to satisfy a relationship X+Y≧Z>X, wherein X represents a reading time required for the reading unit to read said sheet of the series, Y represents an interval time between an end of reading said sheet of the series and a beginning of reading a next sheet of the series, and Z represents a transfer time required for the transfer unit to transfer the image data stored in the storage unit to the transfer destination.