There is provided a document processing device for processing document data, and the document processing device includes a hardware processor that: acquires document data including a plurality of pieces of page data; specifies, from the document data, a common object existing at a corresponding position over a predetermined number of pieces or more of page data; and removes, when a common object is specified, the specified common object from each of the plurality of pieces of page data.

An image forming apparatus includes a reading device and a controller. The reading device reads an image of a source document, and generates image data. The controller receives an input of the image data generated by the reading device. Further, the controller decides that the source document is a chargeable item, when image information indicating that the source document is the chargeable item, for which charging a usage fee corresponding to the source document to a predetermined third party is permitted, is included in the image data.

An image reading device includes an image reading unit and a control unit. The image reading unit reads the image information of the reading target as target image information. The control unit controls the image reading unit. The control unit detects whether or not the image information of the streak not included in the reading target is included in the target image information each time the target image information is read by the image reading unit, and performs the process related to suppression of streak occurrence based on the number of times of streak appearance in which the image information of the streak is included in the target image information.

An image forming apparatus includes a document conveyance unit, an image reading unit, and a control unit that performs an area identification process for identifying, from among a plurality of specific areas in document image data, a specific area including an image corresponding to a page number. The control unit extracts, as reference image data, image data in the specific area identified in the area identification process from the reference document, extracts, as comparative image data, image data in the specific area identified in the area identification process from among a plurality of specific areas in the document image data of a comparative document having a reading order later than the reference document by an extraction interval number, and outputs a confirmation page including combined image data in which the reference image data and the comparative image data overlap. The extraction interval number is a prescribed integer multiple of 10.

An image forming apparatus according to the present disclosure includes an image forming unit configured to form an image based on an image forming condition; a reading unit configured to read a test image on a sheet; a controller configured to: control the image forming unit to form the test image; obtain read data related to the test image output from the reading unit is formed; and update the image forming condition based on the read data. The controller operates in a first mode and a second mode, the first mode is a mode in which, the controller controls the image forming unit to form the image for the second sheet after the image forming condition is updated based on the reading data related to the test image.

An image forming apparatus extracts a pagination image from original document image data of each of a plurality of original documents, specifies a last-digit image corresponding to the ones place of a pagination, arrays a plurality of pagination images in a reading order of original documents beginning with an original document earliest read to form a matrix with n rows and ten columns, sets a row including ten different last-digit images as a reference row, sets a row after the reference row as a first check row, determines, in order from a first column, whether a pagination image of the first check row is a first subject pagination image differing in last-digit image from a pagination image in the identical column of the reference row, and, if determining that some pagination image or another is the first subject pagination image, determines that multi feed has occurred.

In an image processing system, an image reading apparatus determines whether an error occurs on a read image that is an image read by an image sensor, and generates and transmits data including the read image and error information that is information indicating presence or absence of occurrence of the error, and an image processing apparatus receives the data and performs, on the read image, image processing corresponding to the presence or absence of occurrence of the error, based on the error information.

According to one embodiment, there is provided an image reading device including a conveyance unit, a reading unit, and a control unit. The conveyance unit is configured to convey a sheet to a reading surface. The reading unit is configured to read a predetermined pattern image formed on the sheet conveyed by the conveyance unit for each of a plurality of reading candidate positions on the reading surface which are different from each other in a conveyance direction of the sheet. The control unit is configured to cause a reading position of the reading unit to be moved in the conveyance direction on the reading surface by causing the reading unit to be moved based on reading magnification of each of the pattern images read for each of the reading candidate positions.

An information processing apparatus includes an acquirer and an updater. The acquirer acquires a template document image obtained as a result of reading a template document. The updater updates, based on the template document image, processing procedure information indicating a procedure of processing including an extracting step and another step to processing procedure information indicating a procedure of processing including the extracting step and a step whose content is updated. The processing is processing to be executed based on a completed document image obtained as a result of reading a completed document generated by filling characters into the template document. The extracting step is a step of extracting a region including a character image from the completed document image.

An electronic device and a document processing system both with cost saving function are disclosed. The electronic device performs a blank page counting process on a received first document file data containing blank pages, in order to generate cost information of non-blank pages and display it for reference. With the above electronic device, it is able to save the cost of outputting blank pages and avoid waste of paper to achieve the purpose of cost saving. The document processing system includes the above electronic device, which is connected to the document processing system via a network.