An image reading apparatus includes: a conveyance unit configured to convey the original; an image reading unit configured to read an image of the original conveyed by the conveyance unit by using a reading sensor to generate image data which represents a reading result; at least one processor configured to: detect a streak image in an image represented by the image data based on the image data; determine a content area in the image represented by the image data, the content area being an area where content is printed, and perform correction processing for removing the streak image by correcting the image data; wherein the at least one processor is configured to be operable in a first reading mode in which the correction processing is performed to image data corresponding to the streak image in an area outside the content area.

An image forming apparatus includes: an image forming unit configured to form an image onto a sheet; a conveyance roller configured to convey the sheet through a conveyance path, the conveyance path including a curved path being bent; a sensor configured to read the image formed on the sheet conveyed through the conveyance path by the conveyance roller, the sensor being configured to read the image formed on the sheet when a part of the sheet is conveyed through the curved path; and a controller configured to obtain information related to a type of the sheet, and to control, based on the information, a conveying speed of the sheet conveyed by the conveyance roller when the sensor reads the image.

An image forming apparatus includes a recording medium accommodation portion that accommodates a recording medium, a storage portion that stores information about the recording medium that is accommodated in the recording medium accommodation portion and previously printed, a sensing portion that senses opening and closing of the recording medium accommodation portion, a comparison portion that compares currently set setting information about the recording medium with the information about the recording medium stored in the storage portion on a condition that the sensing portion senses that the recording medium accommodation portion is not open between previous printing and current printing, and an output portion that outputs a comparison result of the comparison portion.

An image forming apparatus includes: a first hardware processor that receives setting of a type of a recording medium by a user; a detector that detects a type determination parameter for a recording medium including a recording medium for which setting of a type has been received by the first hardware processor; a second hardware processor that determines a type of a recording medium based on a detection result of the detector; an image former that forms an image on the recording medium; and a third hardware processor that transmits, to an external device, at least two pieces of information of information regarding the type received, information regarding the type determined by the second hardware processor, or information regarding matching or mismatching of the type received and the type determined with respect to the recording medium for which setting of a type has been received by the first hardware processor.

According to one embodiment, an image forming apparatus includes a conveying roller to convey sheets of different types along a conveyance path, a first sensor to detect a sheet being conveyed at a first position, a second sensor to detect the sheet being conveyed at a second position that is at a fixed distance downstream of the first position, a registration roller pair that is downstream of the second sensor, and a control unit. The control unit calculates a transit time for the sheet between the first position and the second position according detection results from the first and second sensors, and then sets a conveying distance for the sheet after the second position to be used for aligning the sheet against the registration roller pair based on the calculated transit time of the sheet.

An image inspection apparatus includes a processor configured to acquire printing data that is data as a base of an image to be printed, acquire read data that is data obtained by reading the image printed on a paper sheet, perform correction of a blur caused by floating of the paper sheet occurring in the reading of the image, on the read data, and inspect the image by comparing the printing data with the read data after the correction.

A reading device, an image forming apparatus, and a method of correction. The reading device includes a scanner configured to read an image in a first wavelength range and an image in a second wavelength range from light reflected by a surface of a recording medium, a detector configured to detect a change from a reference position in a reading-depth direction when the surface of the recording medium is read by the scanner, based on an amount of characteristic read from the image in the second wavelength range, and a corrector configured to correct the image in the first wavelength range based on the change detected by the detector. The image forming apparatus includes the reading device, and an image forming device configured to form an image corrected by the corrector of the reading device on a recording medium. The method includes reading the image in the first wavelength.

An information processing apparatus includes a sensor that detects a property of a specific sheet, and a processor configured to output information about a sheet that satisfies a set condition regarding a relationship with the property detected by the sensor. The sensor includes at least an infrared sensor that detects the property by emitting an infrared ray to a sheet or an electric sensor that detects the property on the basis of an electrical resistance.

A medium conveying apparatus includes a conveying roller to convey a medium, an imaging device to generate an input image acquired by imaging the conveyed medium, and a processor to extract edge pixels from the input image, detect a degree of roundness at a corner of the medium in the input image based on the edge pixels, determine whether the conveyed medium is an ID card based on the degree of roundness, and control the conveying roller based on a result of the determination or outputs the result of the determination.

An image formation apparatus includes: an image former that forms an image on a recording medium delivered along a predetermined delivery path and outputs the recording medium; a first hardware processor that judges whether or not the recording medium is an envelope; a second hardware processor that acquires a basis weight of the recording medium; a third hardware processor that determines control for when an image is formed on the recording medium on the basis of a judgment result from the first hardware processor and a basis weight acquired by the second hardware processor; and a fourth hardware processor that controls operation of the image former on the basis of a determination result from the third hardware processor.