Abstract: A medium conveying apparatus includes a conveying roller to convey a rectangular medium, and a processor to generate an input image acquired by imaging the conveyed medium, detect an overlap of the conveyed medium, detect an object area from the input image, determine whether an outer shape of the object area is rectangular, determine whether a multi-feed of the medium has occurred based on whether the overlap of the medium has been detected and whether the outer shape of the object area is rectangular, and execute an abnormality processing when it is determined that the multi-feed of the medium has occurred.

Abstract: A medium conveying apparatus includes a plurality of feed rollers, each feed roller rotating independently at a respective speed to feed a medium, a first sensor located on a downstream side of the plurality of feed rollers in a medium conveying direction and also in a central part in a direction perpendicular to the medium conveying direction, to detect the medium, a second sensor and a third sensor located on both sides of the first sensor in the direction perpendicular to the medium conveying direction, to respectively detect the medium, and a processor to change the speed of one of the plurality of feed rollers at least until the first sensor detects the medium when any of the second sensor or the third sensor detects the medium and the first sensor does not detect the medium within a predetermined time.

Abstract: A medium conveying apparatus includes a conveyance roller to convey a medium, an imaging device to image the medium, a DC motor to drive the conveyance roller, a processor to detect that a front end of the medium reaches between the conveyance roller and the imaging device, set a current limit value of the DC motor to a first limit value until the front end of the medium reaches between the conveyance roller and the imaging device, and change the current limit value to a second limit value larger than the first limit value after the front end of the medium has reached between the conveyance roller and the imaging device, and drive the conveyance roller by rotating the DC motor based on the second limit value when the imaging device performs imaging.

Abstract: A medium conveying apparatus includes a pick roller feeding a medium, a separation roller placed on a downstream side of the pick roller in a conveying direction of a medium, an arrival detection sensor placed on a downstream side of the separation roller in the conveying direction and detecting arrival of a medium, a lift sensor detecting a lift of a medium between an upstream side of a roller nip of the pick roller and a downstream side of a roller nip of the separation roller, and a processor. The processor determines that a medium is a bound medium when a lift of a medium is detected by the lift sensor in a first predetermined period after detection of a front edge of a medium in a conveying direction by the arrival detection sensor, and executes abnormality processing when a medium is determined to be a bound medium.

Abstract: A document feeder includes a document placement member that has a placement surface, a sucker that has a suction surface on which a part of a document placed on the placement surface is sucked and sucks air from a space formed between the document placement member and the suction surface, a blower that blows air into the space, and a paper feeder that conveys the document in a conveyance direction along the placement surface, wherein the suction surface is inclined relative to the placement surface such that the space is narrower toward the upstream side in the conveyance direction.

Abstract: A medium conveying apparatus includes a main body, a placement board that is movably supported by the main body, an extension member that is movably supported by the placement board, a lever that is movably supported by the placement board, and a mechanism that moves the extension member to a contraction position when the lever is located at a protrusion position, and moves the extension member to an expansion position when the lever is located at a pushed position, wherein the lever is away from an abutting portion fixed to the main body when the placement board is located between a storage position and a midway position, and the lever comes into contact with the abutting portion and moves toward the pushed position when the placement board is located between a unfolding position and the midway position and when the placement board moves toward the unfolding position.

Abstract: 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.

Abstract: An information processing apparatus includes a processor to store a determination feature in a predetermined partial area in an image having a predetermined format and a position of the partial area in a state in which the predetermined format image is erect, and determine whether a feature corresponding to the determination feature is present at a position in an at least one input determination target image corresponding to the position of the partial area in the predetermined format image to thereby determine whether the determination target image is erect.

Abstract: A medium conveying apparatus includes an imaging unit provided to be movable in a direction perpendicular to a conveying surface for conveying a medium, to image the medium, a roller pair provided on an upstream side of the imaging unit in a medium conveying direction, the roller pair including a first roller provided to be movable in a direction perpendicular to the conveying surface, and a second roller facing the first roller, and a conveyance guide provided on a rotation shaft of the first roller, to move in conjunction with a movement of the first roller. The conveyance guide includes a guide surface extending at least from a downstream end portion of a nip portion of the roller pair to an upstream end portion of the imaging unit in the medium conveying direction and being flush with a lower surface of the imaging unit.

Abstract: A medium conveying apparatus includes a medium tray, a feed roller to feed media placed on the medium tray in order from the lower side, a brake roller located to face the feed roller, a torque limiter to control a load applied to the brake roller, and a changing member to change a limit value of a torque of the torque limiter according to a height of the media placed on the medium tray.

Abstract: A medium conveying apparatus includes a pair of conveyance rollers including a first roller and a second roller facing the first roller on an upward side of the first roller, to convey a medium between the first roller and the second roller, and a pair of guides including a lower guide located on an upstream side of the pair of conveyance rollers in a medium conveying direction and an upper guide facing the lower guide, to guide the medium to the pair of conveyance rollers. The upper guide is movably located upwardly according to a conveyance of the medium and the lower guide is movably located downwardly according to the conveyance of the medium so that a space between the pair of guides is changed according to the medium.

Abstract: An information processing apparatus includes a storage device to store, for a plurality of sample media, for each of a plurality of applications, setting information relating to imaging of a medium or an image processing, and image information relating to a sample image generated according to the setting information, a communication device, and a processor to receive an input image from an image reading apparatus via the communication device, extract a predetermined number of sample media in a descending order of a similarity between a corresponding sample image and the input image, from among the plurality of sample media, based on the image information, identify the setting information for each of the plurality of applications for each of the extracted predetermined number of sample media, and output the identified setting information for each of the plurality of applications.

Abstract: A medium conveying apparatus includes a conveying roller to convey a medium, an overlap detection sensor, a processor to detect an overlap portion in which it is determined that an overlap has occurred on the medium based on a detection output by the overlap detection sensor for the medium conveyed by the conveying roller, calculate an overlap length where the overlap portion is continuous based on a detection result of the overlap portion, determine whether a multi-feed has occurred based on the overlap length, and execute an abnormal processing for the multi-feed based on a determination result of the multi-feed. The processor determines that a first overlap portion and a second overlap portion are continuous when a distance between the first overlap portion and the second overlap portion is within a predetermined distance in calculating the overlap length.

Abstract: A medium conveying apparatus includes a conveying roller to convey a medium, and a processor to detect transmission information of an ultrasonic wave transmitted through the medium or thickness information of the medium at a plurality of positions in the conveyed medium, calculate a size of an area in which the transmission information or the thickness information is within a predetermined range in the conveyed medium, determine whether a multi-feed of the medium has occurred, by comparing a value based on the transmission information or the thickness information with a threshold, and execute an abnormality processing when it is determined that the multi-feed of the medium has occurred. The processor changes the threshold according to the size.

Abstract: Provided are an image processing apparatus, a control method, and a control program for more accurately removing the seal component from the input image including the seal. An image processing apparatus includes an acquisition module to acquire an input image, a detection module to detect a seal area corresponding to a seal in the input image, a calculation module to calculate a seal color ratio for each pixel in the seal area, a background information generating module to generate background information, a seal removal image generating module to generate a seal removal image acquired by removing a seal component from the input image, by synthesizing each pixel in the seal area and the background information corresponding to each pixel, based on the seal color ratio, and an output module to output the seal removal image or information generated using the seal removal image.

Abstract: In a scanner, a pulse generator generates a pulse signal, a transmissive optical sensor includes a light projector that projects pulsed light corresponding to the pulse signal and a light receiver disposed so as to face the light projector, a peak hold circuit holds a peak value of a voltage value indicating a light reception amount of the pulsed light in the light receiver, and a first current supply circuit increases a light projection amount of the pulsed light projected from the light projector by increasing a current supplied to the light projector when the peak value is smaller than a reference value and decreases the light projection amount of the pulsed light projected from the light projector by decreasing the current supplied to the light projector when the peak value is larger than the reference value.

Abstract: A medium conveying apparatus includes a first optical sensor located on an upper part of the housing and in a central part of the housing in a direction perpendicular to a medium conveying direction, a second optical sensor located on an upper part of the housing and on a side of the first optical sensor in the direction perpendicular to the medium conveying direction, and a processor to detect a folding of a medium based on the first signal or the second signal, and stop feeding of the medium by the feed roller in accordance with a detection result of the folding of the medium. The first light emitter emits first light toward a downstream side of the medium in the medium conveying direction, and the second light emitter emits second light toward an upstream side of the medium in the medium conveying direction.

Abstract: A medium conveying apparatus includes a suctioner that suctions a medium of a plurality of media to a feed belt, a driver that moves the feed belt to feed the medium, a first side blower that blows air at a first airflow rate to a first end face of the medium, a second side blower that blows air at a second airflow rate to a second end face of the medium, and a controller that controls the first side blower to blow air to the first end face at a third airflow rate that is greater than the first airflow rate and the second airflow rate when the medium has not been auctioned to a first portion of the feed belt close to the first end face and has been auctioned to a second portion of the feed belt close to the second end face.

Abstract: A medium conveying apparatus conveyable a passport includes a guide pair including a first guide, and a second guide located so as to sandwich a medium conveyance path together with the first guide, to regulate a vertical direction of the medium conveyance path, a light emitting element located on an outside of the medium conveyance path with one of the first guide or the second guide in between to detect the medium, a light receiving element located on an outside of the medium conveyance path with the first guide in between, to receive a light emitted by the light emitting element, and an opening provided in the first guide, to pass the light emitted from the light emitting element. A reflectivity in a periphery of the opening of the first guide is 55% or less.

Abstract: An image reading apparatus includes a first housing, a second housing, an imaging sensor, a reference member provided to be able to move between a first position facing the imaging sensor and a second position, a cam to make the reference member move, and an abutting member provided to make the cam move. The abutting member is located at a projecting position sticking out from the first housing, to make the cam move so that the reference member moves from the first position to the second position when the second housing is closed with respect to the first housing. The abutting member is provided so as to be able to retract when the second housing is opened and closed with respect to the first housing and abuts against the cam in the state located at the projecting position.