Abstract: A sheet feeder includes a sheet placement unit to place a sheet, and an indicator indicating a predetermined position at which the sheet is to be set on the sheet placement unit. The indicator is movable between a first position at which the indicator is adjacent to or in contact with the sheet on the sheet placement unit and a second position farther than the first position from the sheet placement unit.

Abstract: A stator core includes a tooth portion having a first core and a second core that is connected to a radially inner side of the first core. In at least one slot between the tooth portions adjacent to each other in the circumferential direction, the first core includes a first umbrella portion at a radially inner end portion, the first umbrella portion being located on both sides in the circumferential direction of the slot and protruding in the circumferential direction, and the second core includes a second umbrella portion at a radially inner end portion, the second umbrella portion being located on both sides in the circumferential direction of the slot and protruding in the circumferential direction.

Abstract: An image reading device includes an illuminator, an imager, a background portion, and an image processor. The illuminator irradiates a subject with visible light and invisible light. The imager receives the visible light and the invisible light reflected by the subject to capture a visible image and an invisible image. The background portion is disposed in an image capturing range of the imager. The background portion has a reflectance at a specific wavelength of the visible light equal to or higher than a lower limit of visible light reflectance, and a reflectance at a specific wavelength of the invisible light equal to or lower than an upper limit of invisible light reflectance. The image processor detects a feature of one of the subject and the background portion from at least one of the visible image and the invisible image.

Abstract: An image forming apparatus, a system, and a method. The image forming apparatus includes an image forming engine to form an image on a recording medium, interrupts an image formation by the image forming engine in response to a malfunction, detects a recording medium on which the image formation is interrupted, and notifies an external device of a detection result of the recording medium.

Abstract: An image reading device includes: a visible light source to emit visible light to an object; an invisible light source to emit invisible light to the object; a first imaging element to receive light reflected from the object to capture a visible image; a second imaging element to receive light reflected from the object to capture an invisible image; and circuitry to remove a visible component included in the invisible image captured by the second imaging element using the visible image captured by the first imaging element.

Abstract: An image processing device includes a first sensor having a sensitivity of a visible wavelength range, to read visible image data of an object, a second sensor having a sensitivity of an invisible wavelength range to read invisible image data of the object, and circuitry that performs a color correction to correct a color of at least one of saturation or brightness to the visible image data based on the invisible image data at a same position with a position of the visible image data to generate image data.

Abstract: An image reading apparatus includes a first light source, a second light source, a visible imaging sensor, an invisible imaging sensor, and a reduction unit. The first light source irradiates an object with visible light. The second light source irradiates the object with invisible light. The visible imaging sensor reads a visible image of the object. The invisible imaging sensor reads an invisible image of the object. The reduction unit reduces a visible wavelength component of light received by the invisible imaging sensor.

Abstract: An image processing apparatus includes circuitry to receive visible image data obtained by reading of a subject with a sensor having sensitivity to visible light in a visible wavelength range and invisible image data obtained by reading of the subject with a sensor having sensitivity to invisible light in an invisible wavelength range. The circuitry generates image data for displaying, in a designated color, a portion of the visible image data corresponding to a designated region of the invisible image data. The designated region has an absorption rate equal to or higher than a predetermined absorption rate.

Abstract: An image forming apparatus, a system, and a method. The image forming apparatus includes an image forming engine to form an image on a recording medium, interrupts an image formation by the image forming engine in response to a malfunction, detects a recording medium on which the image formation is interrupted, and notifies an external device of a detection result of the recording medium.

Abstract: An information processing apparatus includes circuitry. The circuitry transmits document data in response to a request signal transmitted from an information processing terminal and requesting output of the document data. Based on an information signal transmitted from the information processing terminal and indicating information that is not described in a document indicated by the document data, the circuitry generates latent-image data as a latent image including the information signal and the document data. The circuitry outputs the latent-image data and the document data.

Abstract: A stator core includes teeth located in a circumferential direction and slots between the teeth and penetrating in an axial direction, and a wedge located radially inward of the slots. The stator core includes a groove portion at an end of each of the teeth in a circumferential direction. A portion of the wedge is located in the groove portion.

Abstract: An image processing apparatus includes circuitry to receive visible image data obtained by reading of a subject with a sensor having sensitivity to visible light in a visible wavelength range and invisible image data obtained by reading of the subject with a sensor having sensitivity to invisible light in an invisible wavelength range. The circuitry generates image data for displaying, in a designated color, a portion of the visible image data corresponding to a designated region of the invisible image data. The designated region has an absorption rate equal to or higher than a predetermined absorption rate.

Abstract: An image reading apparatus includes a first light source, a second light source, a visible imaging sensor, an invisible imaging sensor, and a reduction unit. The first light source irradiates an object with visible light. The second light source irradiates the object with invisible light. The visible imaging sensor reads a visible image of the object. The invisible imaging sensor reads an invisible image of the object. The reduction unit reduces a visible wavelength component of light received by the invisible imaging sensor.

Abstract: A reading device includes a light source, an image sensor, a background board, and an image processing circuitry. The light source irradiates visible light and invisible light to a subject. The image sensor receives the visible light and the invisible light, each of which is reflected from the subject, to capture a visible image and an invisible image. The background board is provided in an image capturing range of the image sensor. The background board is a background portion. The image processing circuitry detects a feature amount of the subject and the background portion from at least one of the visible image and the invisible image.

Abstract: A reading device includes a first light source, a second light source, a first reading unit, a second reading unit, a comparison unit, and a correction unit. The first source irradiates an object to be read, with first light having a first transmittance to the object. The second source irradiates the object with second light having a second transmittance to the object. The first reading unit reads the first light from the object to output first image data. The second reading unit reads the second light from the object to output second image data. The comparison unit compares a data difference between the first and second image data. In a case where the data difference is equal to or larger than a threshold, the correction unit corrects data of an image area having the data difference equal to or larger than the threshold in the first or second image data.

Abstract: A reading device includes a visible light source to irradiate a subject with light having a visible wavelength; an invisible light source to irradiate the subject with light having an invisible wavelength; first and second image sensors to receive reflected light from the subject being irradiated with the light having the visible wavelength and the light having the invisible wavelength, and circuitry. The first image sensor generates visible image data containing a first invisible component, and the second image sensor generates invisible image data of a second invisible component. The circuitry removes the first invisible component contained in the visible image data using the invisible image data. The circuitry multiplies the invisible image data with the correction coefficient that absorbs an individual variation in removal of the first invisible component, and the correction coefficient is generated based on the visible image data and the invisible image.

Abstract: A reading device includes a first light source configured to emit light, a second light source configured to emit light in a wavelength of light different from a wavelength of light of the first light source, circuitry configured to instruct the first light source and the second light source to turn on and turn off, a first light-intensity adjuster configured to adjust light intensity of the first light source based on a first light intensity value, a second light-intensity adjuster configured to adjust light intensity of the second light source based on a second light intensity value, a first image sensor configured to receive the light that is emitted from the first light source and is reflected by an object, and a second image sensor configured to receive the light that is emitted from the first light source and the second light source and is reflected by the object.

Abstract: A reading device includes a first light source configured to emit light, a second light source configured to emit light in a wavelength of light different from a wavelength of light of the first light source, circuitry configured to instruct the first light source and the second light source to turn on and turn off, a first light-intensity adjuster configured to adjust light intensity of the first light source based on a first light intensity value, a second light-intensity adjuster configured to adjust light intensity of the second light source based on a second light intensity value, a first image sensor configured to receive the light that is emitted from the first light source and is reflected by an object, and a second image sensor configured to receive the light that is emitted from the first light source and the second light source and is reflected by the object.

Abstract: An image processing apparatus includes a light source, an image sensor, and an invisible component remover. The light source emits visible component light and invisible component light to a target object. The image sensor receives reflected light from the target object to detect a visible invisible mixture image including an invisible component and a visible component and an invisible image including an invisible component. The invisible component remover, based on the visible invisible mixture image and the invisible image which have been detected, removes the invisible component from the visible invisible mixture image to generate a visible image. The invisible component remover includes a removal calculator performing a removal calculation process of an invisible component with respect to the visible invisible mixture image, and a noise reducer performing a noise reduction process on at least one of images to be input to and output from the removal calculator.

Abstract: A reading device includes a first light source, a second light source, a first reading unit, a second reading unit, a comparison unit, and a correction unit. The first source irradiates an object to be read, with first light having a first transmittance to the object. The second source irradiates the object with second light having a second transmittance to the object. The first reading unit reads the first light from the object to output first image data. The second reading unit reads the second light from the object to output second image data. The comparison unit compares a data difference between the first and second image data. In a case where the data difference is equal to or larger than a threshold, the correction unit corrects data of an image area having the data difference equal to or larger than the threshold in the first or second image data.