Patent ID: 8593683
Filing Date: 2013-11-26
Classification: H04N

Abstract:
1. An apparatus comprising: a conveyance unit configured to convey a document; a first detection unit configured to detect a first deviation amount of the document by measuring a leading edge of the document conveyed by the conveyance unit; a first correction unit configured to correct deviation of the document by rotating the document conveyed by the conveyance unit, if the first deviation amount is larger than a first predetermined value; an input unit configured, after the first correction unit corrects deviation of the document, to read the document and to input image data of the document; a second detection unit configured to detect a second deviation amount of the document by measuring a trailing edge of the document conveyed by the conveyance unit; and a second correction unit configured to correct deviation of the document by executing image processing for the image data of the document input by the input unit, if the second deviation amount is larger than a second predetermined value which is smaller than the first predetermined value.