Patent ID: 9749487
Date: 2017-08-29
CPC Classifications: H04N

Claim:
1. A document reading device comprising: a document table that has a smaller size than a spread document and on which the spread document is placed in an open state on a page-by-page basis; a document table cover openable and closable relative to the document table; a reading section configured to read images of respective pages of the spread document one at a time on the page-by-page basis each time the spread document is placed in the open state on the document table; a storage device configured to store therein read images read by the reading section; a processor configured to sequentially detect whether or not orientations of the read images each are a first direction or a second direction opposite to the first direction, store the detected orientations of the read images to the storage device, and determine whether or not an orientation of a currently read image read by the reading section matches with an orientation of a previously read image read by the reading section among the orientations of the read images stored in the storage device; a notification section configured to notify an error upon the processor determining that the orientation of the currently read image matches with that of the previously read image; and an input device that receives an input operation by a user, wherein when the orientation of the currently read image is the first direction, the processor determines whether or not the orientation of the currently read image matches with that of the previously read image through determination as to whether or not the orientation of the currently read image is the second direction, when the orientation of the currently read image is the second direction, the processor determines whether or not the orientation of the currently read image matches with that of the previously read image through determination as to whether or not the orientation of the currently read image is the first direction, the storage device further stores orders of the read images read by the reading section in a sequence of the read images, and when the input device receives an input operation for order interchange of the currently read image from the user in a situation in which the processor determines that the orientation of the currently read image matches with that of the previously read image, the processor interchanges an order of the currently read image with that of a subsequently read image read by the reading section and stores the interchanged orders to the storage device.