A control unit of an image reading apparatus determines, based on results of detection of an original document by a plurality of second detecting units, whether the original document will pass a position at which the original document is to be detected by a first detecting unit that is located downstream of the second detecting units and upstream of a reading unit. When it is determined that the original document will not pass a position at which the original document is to be detected by the first detecting unit, the control unit determines a timing for reading the original document by using the reading unit, relative to a time point at which the original document is detected by the second detecting units. The control unit causes the reading unit to read the original document at the determined reading timing.

An image reading apparatus includes an original tray, a conveyer, a reading unit, an acquisition unit, one or more processors, an acquisition unit, a setting unit, and a corrector. The acquisition unit is configured to acquire information relating to a length of the original to be read by the reading unit in a main scanning direction orthogonal to the conveying direction, and the setting unit is configured to set an ineffective region based on the information acquired by the acquisition unit, wherein the ineffective region is a region in the main scanning direction of the pixel data which is not to be used for determination of an inclination amount corresponding to an inclination angle, with respect to the main scanning direction, of a side at a leading edge of the original in the conveying direction.

A reading method guidance apparatus includes a receiving unit, an acquisition unit, and a guidance unit. The receiving unit receives a document size that is a size of a document as a reading target. The acquisition unit acquires an image of at least a partial area in the document. The guidance unit provides an operator with guidance about a reading procedure when the document is read by a first reading apparatus in plural batches, using a feature amount obtained from the acquired image, the received document size, and a readable size that is a size of an area readable by the first reading apparatus.

A medium transport apparatus includes a feeding section configured to nip a medium and feed the medium in a transport direction, a sensor disposed to face a side of the medium being transported in the transport direction, the sensor being configured to detect motion of the medium, and a control unit configured to stop the transport of the medium based on a detection value received from the sensor, in which during a period including a time at which a leading edge of the medium is nipped by the feeding section, the control unit continues transporting the medium irrespective of the detection value from the sensor.

An image inspection apparatus includes: an image reader that performs processing of reading conveyed paper as an image for a correct answer image and an image to be inspected; an information acquirer that acquires setting information at a time of forming an image of paper conveyed to the image reader; a storage that saves, as a correct answer image, an image read by the image reader as an image for a correct answer image, and saves the setting information; and a hardware processor that performs inspection by comparing an image to be inspected read by the image reader to a correct answer image stored in the storage.

A medium transport apparatus includes: a feed unit feeds a medium to a transport direction; a first detection unit disposed upstream of the feed unit, and detects movement of the fed medium; a second detection unit disposed downstream of the first detection unit and detects an inclination of the medium; and a control unit detects the inclination of the medium based on a signal of the second detection unit and stop transfer of the medium when the inclination exceeds a threshold value, and the plurality of the threshold values have a relationship such that when a medium length in the transport direction is a second length being shorter than a first length, a relatively higher value is produced than in a case in which the medium length is the first length, and the control unit selects a threshold value based on a detection value of the first detection unit.

A reading apparatus includes: a reading unit reading a document; a determination unit determining whether or not inclination correction of a document image is performed based on a shape of a circumscription image which is a circumscribed rectangle of the document image read from the document; and an output unit outputting an image according to a determination result.

A display processor of a controller extracts data such as images and characters from display data stored in a storage based on setting information stored in the storage, and displays a document orientation instructing pane and a 90-degree rotation operation icon in a document image operating pane on a display device. The display processor also displays a print preview image based on the document image data. When a rotation operation is performed through the 90-degree rotation operation icon, the document image data is also subjected to the same rotation process.

A document size detecting apparatus includes a first acquisition unit, a second acquisition unit, and a detector. The first acquisition unit acquires a first image that is an image of an entire document as a reading target. The second acquisition unit acquires a second image that is an image of a part of the document read by a first reading apparatus. The detector detects a size of the document using a result of a matching process between the first image and the second image and a read size that is a size of the second image read by the first reading apparatus.

An image forming system includes a mobile terminal apparatus and an image forming apparatus. The mobile terminal apparatus displays a captured image of an operation panel of the image forming apparatus and transmits, in response to a user operation on the captured image, captured image data indicating the captured image and operation position data indicating a position of the user operation to the image forming apparatus. Based on the captured image data and the operation position data received from the mobile terminal apparatus, the image forming apparatus identifies an indirectly operated part of the operation panel, and executes an action corresponding to the identified part.