Patent ID: 9060086
Filing Date: 2015-06-16
Classification: H04N

Abstract:
1. A document reading apparatus comprising: a document conveyance unit configured to convey a document; a reading unit configured to read the document conveyed by the document conveyance unit; a sheet storage unit configured to store a sheet; a first determination unit configured to determine a size of the document based on a size of the sheet stored in the sheet storage unit; a control unit configured to cause the document conveyance unit to convey the document and then cause the reading unit to read the document based on the size determined by the first determination unit; a second determination unit configured to determine a size of the document which is being conveyed by the document conveyance unit; and a third determination unit configured to determine whether the size determined by the first determination unit matches the size determined by the second determination unit, wherein, in a case where the third determination unit determines that the size determined by the first determination unit does not match the size determined by the second determination unit, the control unit causes the document conveyance unit to convey the document again and then causes the reading unit to read the document again based on the size determined by the second determination unit.