An image forming apparatus (100) extracts from first image data (11) second image data (12), which is image data of a document, and accepts operation for selecting either a first preview image (71) corresponding to the first image data (11) or a second preview image (72) corresponding to the second image data (12). The image forming apparatus (100) outputs, when the first preview image (71) is selected, the first image data (11) and, when the second preview image (72) is selected, the second image data (12).

A control unit is capable of selectively executing a first mode and a second mode, the first mode being a mode in which a plurality of sheets having different sizes including a non-standard size are fed by the feeding unit, and the second mode being a mode in which a plurality of sheets having different sizes including only standard sizes are fed by the feeding unit. If the detection unit detects a sheet in a state where the supporting portion is located at the second position and the first mode is selected, the control unit waits for an instruction to start sheet feeding without causing the lifting unit to lift the supporting portion to the first position, and causes the lifting unit to lift the supporting portion to the first position in response to the instruction to start sheet feeding.

An object of the present disclosure is to present a document placement position more simply. A program for causing a computer of an information processing apparatus that causes an image processing apparatus to perform document scan processing to function as: a creation unit configured to create, based on first information relating to a document table of the image processing apparatus, second information indicating a position of a scan origin on the document table, and third information indicating a document size designated by a user, a GUI screen including information for guiding a position at which the document is placed on the document table; and a display control unit configured to cause a display unit to display the created GUI screen.

A size determination method for a document processing device is provided. The document processing device includes an automatic document feeding module. The automatic document feeding module includes a support tray, an entrance and a detecting module. The detecting module includes a front-row detector and plural rear-row detectors. The size determination method includes following steps. Firstly, a document with plural originals is placed on the support tray and inserted into the entrance. Then, a selected original of the document is transported. When the selected original is detected by the front-row detector, the plural rear-row detectors are powered on. The selected original is continuously transported, and the plural rear-row detectors are operated in a detection mode. Then, a size of the selected original is determined according to detection results of the plural rear-row detectors and a transfer time of the selected original.

A document reading apparatus has a first scanning unit that can scan in a document conveyance direction and determines a document reading position, and a guide plate provided in a position that sandwiches the document being conveyed with the first scanning unit. On a facing surface of the guide plate relative to the first scanning unit, a first color section to which a white sheet is attached and a second color section having a sheet metal color (e.g. gray) of the guide plate are formed in the document conveyance direction. The document reading position corresponds to a position facing the second color section when a document is read in a crop mode.

An information processing apparatus includes a memory storing instructions and a processor to execute the instructions to perform operations. Four sides of a document included in captured image data are detected. Lengths of the detected four sides of the document are calculated. The operations further include determining which of a plurality of predefined paper sizes corresponds to the document based on the calculated lengths of the four sides. The determined corresponding paper size is set as a document size of the document.

In a sheet conveyance apparatus a control unit controls lifting and lowering of a sheet supporting portion by a lifting unit and executes a mixed feeding in one of a plurality of modes including a first mode and a second mode. The mixed feeding is an operation in which a plurality of sheets having different lengths in a width direction orthogonal to a feed direction of a sheet feeding unit are fed by the feeding unit, wherein in the first mode, the control unit causes the lifting unit to move the supporting portion from the second position to the first position based on an instruction to start sheet feeding, and in the second mode, the control unit causes the lifting unit to move the supporting portion from the second position to the first position based on a detection of a sheet by the detection unit.

An automatic detection method for a paper size is disclosed. a plurality of mark points is set on a paperweight along a paperweight direction that is different from a feeding direction. The disclosure senses a plurality of row images combining into a scan image during a paper passing between the paperweight and an image sensor, determines an edge length of the paper based on a range of the mark points covered by the paper, and determines a paper size based on the edge length. The disclosure can effectively detect the paper size without any additional sensors.

Systems and methods are provided for processing and extracting content from an image captured using a mobile device. In one embodiment, an image is captured by a mobile device and corrected to improve the quality of the image. The corrected image is then further processed by adjusting the image, identifying the format and layout of the document, binarizing the image and extracting the content using optical character recognition (OCR). Multiple methods of image adjusting may be implemented to accurately assess features of the document, and a secondary layout identification process may be performed to ensure that the content being extracted is properly classified.

The multifunction peripheral of the present invention includes an ADF document crop function. According to this ADF document crop function, front side image shaping processing for cutting out a front side document image corresponding to the image on the front side of a document, from a front side read image of the document and for correcting the tilt of the front side document image is performed. Then, on the basis of shaping information in the front side image shaping processing, back side image shaping processing for cutting out a back side document image from a back side read image of the document and for correcting the tilt of the back side document image is performed.