An image reading apparatus includes a conveying unit to convey a document, first and second reading units, a reception unit, a selection unit, and a setting unit. The first reading unit generates image data form a document first side and the second reading unit generates image data from a second side in parallel with the first reading unit reading. The reception unit receives settings regarding a size, an orientation, and a document opening direction of the document. The selection unit selects either a first reading method causing the first and second reading units to read per the set size, and a second reading method causing the first reading unit to read the first side per the set size and causing the second reading unit to read an entire second side. The setting unit sets image data corresponding to the document second side reading by the second reading method.

Even from a plurality of small documents, their front-side and back-side images to be formed on a recording paper sheet, with alignment and coincidence of the front-side and back-side images of each document between the front and back sides of the recording paper sheet. In an image forming apparatus, an image processing section detects a front-side image of an original document from a scan area read in a first scan by an image reading section, detects a back-side image of the original document from a scan area read in a second scan, and moves or rotates the front-side image and the back-side image of the original document in terms of a whole image of the scan area so that the front-side image and the back-side image of the original document are brought into alignment and coincidence between a front side and a back side of a recording paper sheet.

An image reading apparatus includes a reading unit and a controller. The reading unit reads a first image on a first surface of a sheet and a second image on a second surface of the sheet and generates first and second image data, respectively. The controller determines, based on the first and second image data, whether the first image is at a first edge of the first surface and the second image is at a second edge of the second surface of the sheet. The controller combines the first and second image data into combined image data corresponding to the first and second images if both the first image is at the first edge and the second image is at the second edge. The controller processes the combined image data such that a combined image corresponding to the combined image data has a predetermined size.

An image reading apparatus includes a reading unit and a controller. The reading unit reads a first image on a first surface of a sheet and a second image on a second surface of the sheet and generates first and second image data, respectively. The controller determines, based on the first and second image data, whether the first image is at a first edge of the first surface and the second image is at a second edge of the second surface of the sheet. The controller combines the first and second image data into combined image data corresponding to the first and second images if both the first image is at the first edge and the second image is at the second edge. The controller processes the combined image data such that a combined image corresponding to the combined image data has a predetermined size.

An image processing device includes a processor configured to: obtain image information obtained by reading a sheet that is folded with an intention that a folding line is formed at a position apart from a sheet center position in a specific direction by a predetermined distance, using an image reading device in a state in which a short folded piece of the sheet faces a sensor surface; obtain positions of two edges that are opposite to each other across a folding back of the sheet in the image information; and detect a deviation amount of the folding line based on the positions of the two edges and the predetermined distance.

An image reading apparatus includes a first image reading unit, a second image reading unit provided on a side opposite from the first image reading unit with respect to a sheet feeding passage, a first guiding member, a second guiding member, a first unit holding the first image reading unit and the second guiding member, and a second unit holding the second image reading unit and the first guiding member. One of the first unit and the second unit is movable relative to the other unit so as to open the sheet feeding passage.

A cloud-based document scanning system includes a cloud computing platform having a cloud computing application and a cloud storage system. The system further includes a scanning device communicatively coupled over a network to the cloud computing platform, the scanning device configured to: accept a set of documents; generate a set of digital image files corresponding to the set of documents; store the set of digital image files; and upload the set of digital image files directly to the cloud storage system. Upon receiving a request from the scanning device, the cloud computing application is configured to: access the set of digital image files; apply image processing operations to the set of digital image files in accordance with a plurality of image processing parameters, generate a portable document format document based on the processed image files, and send the portable document format document to a user-selected destination.

According to aspects illustrated herein, methods and systems for retaining duplex scanning information in a scanned output file, is disclosed. The method includes receiving a document for scanning, having multiple pages, wherein each page has a first side such as a front side and a second side such as a back side. Then, a check for selection of a duplex scanning feature by a user, is performed. Upon scanning, an image data representing an image of the document is generated. The image data and the duplex scanning feature selected by the user is processed to generate a scanned output file. The duplex scanning information is generated, while generating the scanned output file. The duplex scanning information is retained in the scanned output file, for later retrieval and use. The duplex scanning information helps identify the first side and the second side in the scanned output file.

An image reader includes a document reading unit, and a control unit that functions as an individual image cutting section, character string detection section, mismatch detection section, judgment section, and correction section. The individual image cutting section cuts out individual images from image data obtained through reading by the document reading unit. The character string detection section detects character strings present on the individual images. The mismatch detection section detects, for the character strings detected by the character string detection section, a mismatching portion by making comparison between the individual images with considering character strings having contents identical or similar to each other as same information. The judgment section judges for the mismatching portions whether a ratio of majority characters reaches a predefined ratio. Upon judging that the ratio of the majority characters has reached the predefined ratio, the correction section replaces a minority character with the majority character.

A reading apparatus includes a transport unit, a multi-feed detection unit, a reading unit, and a controller. When a multi-feed of the document is detected by the multi-feed detection unit, the controller multi-feeds causes the transport unit to discharge, downstream of the transport path, a multi-fed document for which the multi-feed is detected and then temporarily stops the transport, stores multi-fed page information indicating a page number of the multi-fed document, restarts the transport after the temporary stop, and after the reading unit reads a remaining document whose page succeeds a page of the multi-fed document, performs a re-reading process including the transporting and the reading of the multi-fed document, respectively, and inserts, based on the multi-fed page information, second read data acquired by the reading in the re-reading process into first read data acquired by the reading completed before the re-reading process.