An image reading apparatus includes a conveyance unit and a reading unit. Based on read image data from the reading unit, a tilt amount of an edge of a document on a leading edge side in a conveyance direction in which the document is conveyed is decided. If the decided tilt amount exceeds a first threshold where a setting that performs document digitalization with respect to the image data, notification is given of information indicating that reading of the document for the document digitalization has failed. If the decided tilt amount is smaller than the first threshold, skew correction is executed for correcting the tilt amount based on the decided tilt amount with respect to the image data, and the document digitalization is executed with respect to the image data for which the skew correction has been executed.

An image reading apparatus includes a medium mounting portion configured to mount a medium; a feeding means configured to feed a medium from the medium mounting portion; at least one edge guide each configured to regulate a corresponding one of at least one medium width direction edge of the medium having been mounted on the medium mounting portion; a reading means configured to read the medium and disposed on a further downstream side than the at least one edge guide in the medium feeding direction; and at least one medium detection means configured to detect the medium and disposed on a further downstream side than the at least one edge guide in the medium feeding direction and further outside in the medium width direction than at least one edge regulation position for the edge regulation by the at least one edge guide.

An image reading apparatus includes a feed roller configured to feed a document, a transport roller disposed downstream of the feed roller and configured to transport the document downstream; a transport motor being a drive source of the transport roller; a reading unit disposed downstream of the transport roller and configured to read the document; and a control unit configured to control the reading unit and the transport motor, wherein the control unit is configured to obtain information on a document type and an inclination detection reference value for an inclination of image data set in accordance with the document type and obtained from the reading unit, and when the inclination of the image data exceeds the inclination detection reference value in accordance with the document type, the control unit stops the transport motor.

Provided are a medium conveyance apparatus, control method, and control program is to enable more precisely detecting an end part in a main scan direction of a medium from an image. A medium conveyance apparatus includes a conveying module to convey a medium, an imaging device to capture an image of the conveyed medium, a storage device to store a low reliability region inside an input image of a medium captured by the imaging device based on a positional relationship between an imaging position of the imaging device and arrangement position of the conveying module, an edge pixel detection module to detect edge pixels from the input image, an end part detection module to detect an end part in a main scan direction of the medium based on edge pixels detected from a region not including the low reliability region inside the input image, and an output control module to output information relating to the detected end part.

The image reading apparatus includes a separation roller, an imaging device to generate an input image, a conveyance roller to convey the medium separated by the separation roller to the imaging device, a first medium sensor located between the separation roller and the conveyance roller, a second medium sensor located between the conveyance roller and the imaging device, a processor to start imaging by the imaging device in response to detection of the medium by the first medium sensor and generate a cutout image from the input image in response to detection of the medium by the second medium sensor, and an output device to output the cutout image. The processor generates the cutout image based on a position imaged by a predetermined amount before a position imaged at a timing when the second medium sensor detects the medium, in the input image.

An image scanning device according to aspects of the present disclosures includes a transparent plate member on which an original document can be placed, a line sensor configured to receive a light emitted from a light source and reflected by the original document, and output an electrical signal according to the reflected light, a holding member configured to cover an upper surface of the plate member, and a controller. The controller is configured to obtain a first electrical signal corresponding to a first reflected light when the light source emits light having a first light amount, obtain a second electrical signal corresponding to a second reflected light when the light source emits light having a second light amount, and determine a particular scanning mode for scanning the original document placed on the plate member based on an image difference value calculated from the first and second electrical signals.

An image processing apparatus includes a motor, a sheet feeding roller, a separation roller, a conveyance roller, a first clutch set provided in a transmission path of a driving force transmitted from the motor to the sheet feeding roller, and a second clutch set provided in a transmission path of a driving force transmitted from the motor to the separation roller. The first clutch set includes a first one-way clutch and a first two-way clutch, and the second clutch set includes a second one-way clutch and a second two-way clutch. A maximum value of a first play angle set between a first transmission portion and a first transmitted portion in the first two-way clutch is larger than a maximum value of a second play angle set between a second transmission portion and a second transmitted portion in the second two-way clutch.

An image reading apparatus acquires first control data regarding generation of first rectangular image data that includes a whole of a document area corresponding to a document within a reading area of read image data. The image reading apparatus acquires second control data regarding generation of second rectangular image data that does not include a background area not corresponding to the document within the reading area of the read image data and includes at least a part of the document area.

An example print medium supplying apparatus includes a print medium transporting device to pick up a print medium loaded in a loading portion and transport the picked-up print medium, a print medium alignment portion to align a leading end of the transported print medium, a first sensor to sense the print medium that passes through a feed roller of the print medium transporting device, and a processor to, based on a measured value with respect to the print medium sensed by the first sensor and a multi-feeding determination reference value corresponding to a sheet of the print medium, detect multi-feeding of the print medium and process the detected multi-feeding by controlling the print medium transporting device and the print medium alignment portion.

A feeding device includes: a feeder that feeds a first medium disposed on a top of plural media loaded; a detector that detects at least one of a curved state and an inclination of the first medium and following media including a second medium disposed immediately below the first medium; and a modifier that modifies a condition related to a feeding operation of the feeder based on the at least one of the curved state and the inclination detected by the detector.