An information processing device performs processing on document image data. The document image data includes first image data of a plurality of images and second image data. The first image data undergoes character recognition processing. The second image data does not undergo character recognition processing. The information processing device includes a detecting section, an extracting section, and a processing section. The detecting section detects the first image data from the document image data. The extracting section extracts the first image data from the document image data. The processing section generates composite image data by compositing the images of the first image data and performs character recognition on the composite image data.

An image forming apparatus includes: a signal output unit configured to output a signal in response to a user operation; a reading unit configured to read a document and generate image data having a first resolution or a second resolution lower than the first resolution; a recording unit configured to form an image on a recording medium; and a controller configured to control the reading unit and the recording unit and execute: (a) primary preparation operation start processing of, when a signal is output, controlling the reading unit so as to start a first preparation operation or a second preparation operation; (b) determination processing of determining; (c) secondary preparation operation start processing and/or reading processing; (d) decision processing of deciding the continuous number of recording copies; and (e) recording processing of causing the recording unit to form the image on the recording medium.

A multifunction peripheral capable of preventing discontinuation of a simultaneous double-sided reading process, caused by congestion of an image bus. An image transfer clock is controlled for transferring image data of a document sheet from a reading unit for reading both sides of the document sheet, to an image processing unit for performing image processing on data acquired via an image bus. When transfer of image data of one side of the document sheet is singly executed, a frequency of the image transfer clock is set to a predetermined frequency, and when transfer of image data of the other side of the document sheet, which is executed in succession to the transfer of image data of the one side, is to be executed in parallel with the image processing, the frequency is switched from the predetermined frequency to a lower frequency than the same.

An image processing apparatus includes a light source, an image sensor, and an invisible component remover. The light source emits visible component light and invisible component light to a target object. The image sensor receives reflected light from the target object to detect a visible invisible mixture image including an invisible component and a visible component and an invisible image including an invisible component. The invisible component remover, based on the visible invisible mixture image and the invisible image which have been detected, removes the invisible component from the visible invisible mixture image to generate a visible image. The invisible component remover includes a removal calculator performing a removal calculation process of an invisible component with respect to the visible invisible mixture image, and a noise reducer performing a noise reduction process on at least one of images to be input to and output from the removal calculator.

A method of controlling an image forming apparatus having an image reading unit capable of conveying and reading a plurality of documents of different sizes includes determining whether an automatic magnification function is set in a case where an instruction to read a plurality of documents of different sizes is given, and performing control such that, in a case where the determining determines that the automatic magnification function is not set, a first document reading mode in which the plurality of documents is conveyed at a constant conveyance speed and is read is set to the image reading unit, and, in a case where the determining determines that the automatic magnification function is set, a second document reading mode in which the plurality of documents is conveyed at a different conveyance speed for each document and is read is set to the image reading unit.

An image reading apparatus includes a transport unit which transports a document, and reading units which read an image of the document which is transported. It is assumed that an operation of reading an image when specific setting information is not input to a control device of the image reading apparatus is set to a first reading mode, and an operation of reading an image when specific setting information is input to the control device is set to a second reading mode. In this case, in the second reading mode, image data of an image with a resolution which is equal to that in the first reading mode is generated, while causing the reading units to read an image from a document which is transported by the transport device at a lower speed than that in the first reading mode.

An image reading apparatus includes a main body including a posture switching unit configured to switch the main body between a plurality of holding postures, a mode switching unit configured to switch between a plurality of modes corresponding to respective types of the document, display unit configured to display a first screen indicating a first combination of the holding posture and the mode, where the first combination is permitted, and a second screen indicating a second combination of the holding posture and the mode, where the second combination is prohibited, and a controller. The controller displays the first screen on the display unit when a state is switched to a state of the first combination, and displays the second screen on the display unit after a Predetermined time elapses since a state was switched to a state of the second combination.

An image forming system includes an image forming apparatus and a mobile terminal. The mobile terminal communicates with the image forming apparatus through a communication network. Mode information is inputted to the image forming apparatus from an external device. The mode information indicates one mode among a quiet mode in which an image is formed at a predetermined formation speed, a normal mode in which the image is formed at a faster formation speed than the quiet mode, and an urgent mode in which an image forming process in the quiet mode or the normal mode is interrupted to form the image. The quiet mode is sellable on the mobile terminal. The image forming apparatus forms the image in the urgent mode when the mode information inputted from the external device indicates the urgent mode and setting information indicating the quiet mode is acquired from the mobile terminal.

An information processing device performs processing on document image data including first image data to undergo character recognition processing and second image data not to undergo character recognition processing. The information processing device includes a detecting section which detects the first image data, an extracting section which extracts the first image data, and a processing section. The processing section includes a counting section which counts first images, a determining section which determines whether the number of the first images exceeds a threshold, a first performing section which performs first processing when the threshold is exceeded, and a second performing section which performs second processing when the threshold is not exceeded. Through the first processing, the second image is masked with a background color of the document image and character recognition is then performed on the document image. Through the second processing, character recognition is performed on the first images.

In accordance with an embodiment, an image reading apparatus sets a scan speed corresponding to an operating speed input by the operation panel. The image reading apparatus executes a scan job at the set scan speed. In addition, the image reading apparatus updates a scan counter in accordance with the number of pages of an image read at the set scan speed.