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.

An image processing apparatus includes a size acquisition unit and a decision unit. The size acquisition unit acquires first size information indicating a first sheet size of a first sheet surface read by an image reading unit. The decision unit decides second image information indicating a second image size of a second image to be stored of a second sheet surface different from the first sheet surface based on first image information indicating a first image size of a first image to be stored based on the first size information.

An object of the present disclosure is to enable a user to easily set a line width adjustment value in a case where line widths are matched between different printing apparatuses. One embodiment of the present invention is an information processing apparatus that performs processing for putting a width of a line in an output in a case where printing is performed by a first printing apparatus based on print data including a line close to a width of a line in an output in a case where printing is performed by a second printing apparatus based on the print data and has: a first acquisition unit configured to acquire first information relating to an output in a case where printed matter including a plurality of line width detection images is printed by the second printing apparatus.

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.

Based on a light-reception result of a light-receiving unit capable of receiving light on a document table and outputting the light-reception result, the end of a document placed on a document table is determined. In accordance with the condition of external light on the document table, the light-receiving unit is controlled so as to change a method of outputting the light-reception result from the light-receiving unit.

A light sensing apparatus includes a sheet passage, a first sensing assembly and a first background sheet. The sheet passage has a scan window. The first sensing assembly disposed on a first side of the scan window outputs first scan light to the scan window. The first background sheet disposed on a second side of the scan window has a first reflective surface reflecting the first scan light, passing through the scan window, back to the first sensing assembly through the scan window. The first reflective surface of the first background sheet and the scan window are disposed in a non-parallel manner. Therefore, a light sensing method is also provided to achieve the effects of brightness calibration and boundary detection of the first sensing assembly.

An image reading apparatus comprising: an original reading unit configured to read an image of each of multiple originals placed on an original table in batch by a batch-scan; a cropping unit configured to crop an image of each original from an entire image which is read by the batch-scan; an image output unit configured to output a cropped image of each original; and a control unit configured to control the original reading unit, the cropping unit, and the image output unit, wherein the control unit makes the original reading unit read the image by a batch-scan in which an image density of an edge of each original is supposed to be higher than an image density of a reading-area outside of the original, and an area to be cropped is determined on the basis of a difference in the image density between the edge and the reading-area outside of the original.

A clipping processor is configured to estimate a background pixel value which is a read value of a background board and to clip an image of an original document from a read image based on the background pixel value which is estimated, the read value changing due to an increase in distance between a sensor and the background board caused by the original document, the read image being a result of reading an area including the original document and the background board.

An image reading apparatus comprising: an original reading unit configured to read an image of each of multiple originals placed on an original table in batch by a batch-scan; a cropping unit configured to crop an image of each original from an entire image which is read by the batch-scan; an image output unit configured to output a cropped image of each original; and a control unit configured to control the original reading unit, the cropping unit, and the image output unit, wherein the control unit makes the original reading unit read the image by a batch-scan in which an image density of an edge of each original is supposed to be lower than an image density of a reading-area outside of the original, and an area to be cropped is determined on the basis of a difference in the image density between the edge and the reading-area outside of the original.

An image reading device includes: a platen on which a document is placed; a platen cover openable and closable with respect to the platen; a cover-open sensor which detects a fact that the open/close angle of the platen cover has passed a predetermined angle from a close state; a CCD line sensor including charge coupled devices (CCD) arranged for recording a variation in distribution for a fixed period of time of incident light when detecting passing of the platen cover; a variation amount calculator which calculates a variation amount of incident light at each distribution point on the basis of a variation in distribution recorded by the CCD line sensor; and a variation amount determination unit which determines whether or not a variation amount calculated by the variation amount calculator exceeds a predetermined threshold.