Patent ID: 9654655
Date: 2017-05-16
CPC Classifications: G06K,H04N

Claim:
1. An image reading device comprising: an image scanning portion including an image sensor configured to receive reflection light of light irradiated on a document sheet, the image scanning portion configured to read an image of the document sheet by the image sensor; a page classification portion, operatively coupled to the image scanning portion and a processor of a computing device, configured to perform a page classification process of classifying a plurality of pieces of page image data obtained by the image scanning portion into data of a blank page that satisfies a predetermined blank sheet condition, and data of a non-blank page other than the data of the blank page; a primary file generation portion, operatively coupled to the processor of the computing device, configured to generate a primary image data file that includes: the data of the non-blank page; the data of the blank page; and page classification information, and store the primary image data file in a non-transitory computer-readable data storage portion; a preview output portion, operatively coupled to the processor of the computing device, configured to display, on a display portion, an image of the non-blank page and an image of the blank page in the primary image data file so as to separate the image of the non-blank page and the image of the blank page from each other; a page classification correction portion, operatively coupled to the processor of the computing device, configured to correct the page classification information in the primary image data file according to a predetermined correction operation; a file replacement portion, operatively coupled to the processor of the computing device, configured to replace the primary image data file stored in the data storage portion, with a secondary image data file that includes the data of the non-blank page and does not include the data of the blank page, when a predetermined determination condition is satisfied; a blank sheet condition changing portion, operatively coupled to the processor of the computing device, configured to change the blank sheet condition so as to tighten or alleviate the blank sheet condition, according to whether correction of the page classification information in the primary image data file is shift-to-non-blank-sheet for change from the blank page to the non-blank page, or shift-to-blank-sheet for change from the non-blank page to the blank page; and a correction history storage portion, operatively coupled to the processor of the computing device, configured to store, when the page classification information in the primary image data file is corrected, correction history information by which frequency of correction for each of the shift-to-non-blank-sheet and the shift-to-blank-sheet can be identified, wherein the blank sheet condition changing portion changes the blank sheet condition according to the correction history information.