An image forming apparatus includes a scanner configured to read an image of a document and generate image data of the image according to a reading mode, a storage device configured to store the image data and the reading mode used when reading the image of the document, and a processor. The processor generates a combined image that includes the image of the document and a reading direction image that indicates a reading direction of the scanner and has a shape indicating the reading mode, and store data of the combined image in the storage device. The processor determines a position of the reading direction image in the combined image and a size of the reading direction image in the combined image, based on a reading resolution of the scanner and a resolution of the image data stored in the storage device.

An image processing apparatus includes a selection unit, a determination unit, and a control unit to set candidates to be selected by the selection unit. If determination unit determines that there is not a set of a size and an orientation of a document of which the orientation cannot be correctly determined, the control unit sets, as selection unit selection candidates, candidates of sets of sizes and orientations of a plurality of documents. If the determination unit determines that there is a set of a size and an orientation of a document of which the orientation cannot be correctly determined, the control unit sets, as selection unit selection candidates, candidates obtained by excluding the set of the size and the orientation of the document of which the orientation cannot be correctly determined from the candidates of the sets of the sizes and the orientations of the plurality of documents.

An image forming apparatus includes an image forming device, a detector and a holding body. The image forming device is configured to perform an image formation to a sheet. The detector is configured to detect a position of a first image formed on a first surface of the sheet through the image formation of the image forming device. The holding body is configured to move while holding the sheet, by performing one of a rotation in a radial direction about a support shaft attached thereto in a direction perpendicular to an axial direction thereof and a lateral shift in a width direction of the sheet, operable to correct the position of the sheet based on a detection result obtained by the detector.

According to the technology of the present disclosure, in a case where multiple documents are placed on a document positioning plate, it is possible to display document images on a UI screen in such a manner that the user can easily check the correspondence relationship between the document images being displayed on the UI screen and the corresponding documents placed on the document positioning plate. An image processing apparatus according to the present disclosure includes a processor causing the image processing apparatus to perform: acquiring position information of each of a plurality of document image areas, and information of an analyzing result obtained by analysis of document image data corresponding to each of the plurality of document image areas; and controlling the information of the analyzing result corresponding to one of the plurality of document image areas to be displayed together with the scanned image data on a display apparatus.

An image processing apparatus includes a selection unit, a determination unit, and a control unit to set candidates to be selected by the selection unit. If determination unit determines that there is not a set of a size and an orientation of a document of which the orientation cannot be correctly determined, the control unit sets, as selection unit selection candidates, candidates of sets of sizes and orientations of a plurality of documents. If the determination unit determines that there is a set of a size and an orientation of a document of which the orientation cannot be correctly determined, the control unit sets, as selection unit selection candidates, candidates obtained by excluding the set of the size and the orientation of the document of which the orientation cannot be correctly determined from the candidates of the sets of the sizes and the orientations of the plurality of documents.

An image reading apparatus includes a reading unit that reads a document transported in a second scan direction, a detector unit that detect a position of an edge of the document in a first scan direction crossing the second scan direction, a setting unit that sets a search range of the edge of the document in the first scan direction, the search range including the position of the edge detected by the detector unit, and a search unit that, on image data that the reading unit has read from the document, searches for the position of the edge within the search range of the edge set by the setting unit.

An image reading device includes a first reading device, a second reading device, and circuitry. The first reading device reads an image of one surface of a document. The second reading device reads an image of other surface of the document. The circuitry detects a first skew angle of skew in the read image of the one surface, performs skew correction on the image of the one surface based on the first skew angle, and forms a second skew angle for the image of the other surface. The second skew angle corresponds to reverse of the first skew angle. The circuitry further performs the skew correction on the image of the other surface based on the second skew angle, and outputs at least one of the image of the one surface subjected to the skew correction and the image of the other surface subjected to the skew correction.

Conveyance modes include a registration mode accompanied with skew correction and a registrationless mode unaccompanied with skew correction. When a jam occurs, the controller interrupts a job, and invokes blank-feed processing starting from a state with all sheets re-set. On invoking blank-feed processing, the controller checks the conveyance mode and recognizes the number of jams. If the conveyance mode is the registration mode and in addition the number of jams has not reached a threshold number of jams, the controller invokes blank-feed processing in the registrationless mode.

A system and method for aligning documents for scanning includes a multifunction peripheral with a controller having a processor and associated memory. The controller issues instructions controlling operation of a scanner. A tangible document is placed on a surface of a scanner platen, and a sensor determines its location relative to the platen. An optimal position of the document relative to the platen is determined. The processor then generates a graphical rendering on an associated display indicative of a directed repositioning of the document on the platen in accordance with a determined optimal position of the document relative to the platen.

An image reading apparatus includes a reading unit configured to read an image of a document and generate image data, a filtering unit configured to perform filtering processing on the image data generated by the reading unit and generate image data, a binarization unit configured to perform binarization processing based on the image data generated by the filtering unit using a first threshold value to generate first binary image data, and perform binarization processing based on the image data generated by the filtering unit using a second threshold value to generate second binary image data, and a detection unit configured to detect an edge in the image data generated by the reading unit based on the first binary image data and the second binary image data generated by the binarization unit.