An image reading device includes a document tray, a linear conveyance path, a curved conveyance path, a document conveyance device, a scanning device, a length detecting device, an operation device, and a controller. A plurality of conveyance rollers are disposed at a predetermined first interval in the linear conveyance path. In the curved conveyance path, a plurality of conveyance rollers are disposed at a predetermined second interval longer than the first interval. When accepting through the operation device an instruction for conveying an original document through the curved conveyance path, the controller allows conveyance of the original document through the curved conveyance path when a length of the original document detected by the length detecting device is not shorter than the second interval or disallows conveyance of the original document through the curved conveyance path when the detected length of the original document is shorter than the second interval.

A control unit of an image reading apparatus acquires, at an upstream position in a medium transportation direction of an abnormality determination area set for a leading-edge area of a medium, a distance WL from a center position in a medium width direction intersecting with the medium transportation direction to one edge in the medium width direction and a distance WR from the center position to the other edge in the medium width direction, and compares a value R that is a ratio between the distance WL and the distance WR or a difference therebetween with a threshold R0 determined in advance.

The image processing apparatus adds a first image that includes a predetermined image feature, to a read image of the document based on a detection result in the detecting, and transmits a second image of the predetermined image size specified in the read instruction, to the information processing apparatus. The information processing apparatus obtains the read image of the document included in the second image transmitted in the transmitting. The image processing apparatus adds the first image such that in the second image the first image is provided on the outside of the read image of the document, based on at least one of a width and a height of the document detected in the detection. The information processing apparatus obtains the read image of the document based on the predetermined image feature.

Provided is a technique that enables efficient setting of poster printing and efficient processing of an image. To this end, a control apparatus of the present invention is a control apparatus that allows a printing apparatus to print multiple divided images, into which an input image is divided, on print media, including: a setting unit that sets the number of divisions of the input image based on user input; an obtaining unit that obtains a width of the print media; a determining unit that determines a scale factor of the input image based on at least the set number of divisions, the width of the print medium, and a width of the input image; and a display control unit that displays a preview screen of the input image and a processing instruction item for instructing processing of the input image together, in which in a case where processing of the input image is instructed by user operation through the processing instruction item, the display control unit displays a processed input image reflecting the processing based on the processing instruction, and the determining unit determines a scale factor of the processed input image based on a width of the processed input image.

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.

A non-transitory computer-readable storage medium storing computer-readable instructions for an information processing apparatus is provided. The computer-readable instructions cause the information processing apparatus to obtain a width of an image-formable area, having a first side and a second side, on a sheet and object image data composing an object image; define a first partial image and a second partial image in the object image; and generate composite image data composing an image, in which the first partial image and the second partial image are arrayed in an arrangement such that a third side of the first partial image and a fourth side of the second partial image align along the first direction.

A recording apparatus includes a recording head, a loading unit, a feeding unit, a cover, a detection unit, and a determination unit. The feeding unit feeds a recording medium loaded on the loading unit to a recording position where the recording head performs the recording. The cover moves between an opening state and a closing state. The determination unit determines a size of the loaded recording medium based on a result of a width detection operation. The recording head records an image per a determination result. If the cover closing is detected before the recording is performed, the determination unit performs the width detection operation to determine the recording medium size loaded on the loading unit. If the cover opening is detected and the recording apparatus receives a recording instruction, the determination unit performs the width detection operation to determine the recording medium size loaded on the loading unit.

An image reading apparatus includes: a reading unit, which is configured to read an original placed on an original table in a main scanning direction by irradiating the original with light; and a sub-scanning size detector, which is configured to detect presence or absence of the original on the original table by radiating invisible rays. When the platen cover forms an angle of equal to or smaller than a first angle with respect to the original table, the image reading apparatus determines a size of the original in a sub-scanning direction in accordance with a detection result acquired from the sub-scanning size detector. When the platen cover forms an angle equal to or smaller than a second angle, which is smaller than the first angle, with respect to the original table, the image reading apparatus determines a size of the original in the main scanning direction.

A multi-feed detection apparatus includes a conveyance roller, an ultrasonic sensor for generating an ultrasonic signal, an imaging device to image the medium being conveyed by the conveyance roller and sequentially generate a line image, and a processor to detect a width of the medium in each line image for each line image, detect a vertex count of a medium included in the sequentially generated line image based on the width of the media in the each line image, detect a length of the medium in a direction perpendicular to the medium width, estimate a shape of a medium based on the vertex count and the length of the medium, and detecting media multi-feed by comparing the ultrasonic signal with a predetermined threshold value, and change the predetermined threshold value or stop detection of the medium multi-feed, based on the estimated shape of the medium.

An image reading apparatus comprises a platen, a support, a reader, an open/close unit, a first obtainer, a mark, a positioning member, and a determiner. A position of the mark on a pressing surface of the cover, is provided at a position at which, in a case where a sheet of a maximum size among standard sizes that can entirely fit in a readable range of the reader is positioned with respect to the positioning member, at least a portion of the mark is not hidden by the sheet as viewed from the reader.