An image processing apparatus including: a first housing; and a second housing, the second housing including: a base part; a supporting part; an image reader; and a detector, the first housing including: an image forming unit and a cover, wherein: the cover has a 1st region disposed on a lower position of the detector and a 2nd region disposed on an upper position of a moving range of a recording head; the 1st region has a recessed part recessed downward, an inner bottom surface of the recessed part being disposed at a position lower that an upper edge position of the 2nd region; the base part has a housing part; and a lower edge of the detector is lower than the upper edge position of the 2nd region.

An information processing apparatus includes a light emitting unit and a light receiving unit for receiving light output from the light emitting unit, and includes a detection unit for outputting a light reception signal indicating that the light receiving unit has received light from the light emitting unit, a driving signal output unit for outputting a driving signal to the detection unit so that the light emitting unit intermittently outputs light, a detection signal output unit for outputting, based on the output driving signal and the output light reception signal, a detection signal indicating whether an object exists between the light emitting unit and the light receiving unit, and a control unit including an interrupt port to which the output detection signal is input and for returning from a power saving state in response to the detection signal being input to the interrupt port in the power saving state.

Provided are an image processing apparatus, a control method, and a control program to accurately determine whether or not a deflection of a fed medium has occurred, and to suitably control a feeding of the medium. A medium conveying apparatus includes a feed module to feed a medium, a motion detection module to detect a first change amount in a feeding direction of the medium placed on a medium tray and a second change amount in a direction perpendicular to a placing surface of the medium tray during feeding of the medium, a determination module to determine that a deflection of the medium has occurred when the first change amount is less than a first threshold value and the second change amount is equal to or more than a second threshold value, and a control module to stop feeding the medium according to the determination result.

An image forming apparatus includes a controller that causes an image reading device to suspend reading a source document, when a decider decides that a shortage value of a source image is equal to or larger than a first threshold, causes a display device to display a message that the first threshold is changed to a predetermined second threshold larger than the first threshold, stores the source image, or causes the image forming device to form the source image, when a reading resuming instruction, to resume reading the source document at least including the source document the reading of which has been suspended, is received by an operation device, and when the decider decides that the shortage value of the source image is smaller than the second threshold, and causes, when there is a next source document, the image reading device to read the next source document.

A conveyance control device controls conveyance of a plurality of sheets including an image-formed sheet. The conveyance control device includes an obtaining unit configured to obtain display image data indicating a display image of each of the plurality of sheets; a region-specifying unit configured to specify common color regions having a common display color on the plurality of sheets based on the display image data; and a multiple feed detector configured to detect multiple feed of the sheets based on a light-receiving amount of light irradiated onto the common color regions; wherein the display image data indicating a display image of the image-formed sheet includes predetermined image data indicating a predetermined image to be previously formed and sheet image data indicating a sheet image displayed in a sheet color of the sheet.

Methods and apparatus pertaining to scanning or copying documents are provided. Sheet media are individually transported away from an input location. Optical scanning of the sheet media is initiated in accordance with detecting the passage of leading edges of the sheet media. Electronic signals resulting from the scanning are automatically analyzed to detect trailing edges of overlapping sheet media. A user notification is issued if a multiple sheet pick event is detected. A user can resume scanning or copying of a multiple sheet document at the location where the multiple sheet pick occurred.

An image reading apparatus includes: three or more light sources configured to each emit light; a light receiving unit including a common light receiving surface configured to detect each light emitted; and an image generation unit configured to cause the three or more light sources to be switched over in a predetermined order and emit the corresponding light, and generate an image read from a document, wherein at least one of the three or more light sources includes a white light source and an optical filter, and the optical filter is configured such that a half-value width of a wavelength with respect to a maximum intensity of a spectral characteristic of the emitted light after transmission is wider than a half-value width of a wavelength with respect to a maximum intensity of the spectral characteristic of the light emitted from at least one of the other light sources.

On the basis of first read image data obtained by reading a first face, a controller calculates a first sub scanning size, which is a size of the first face in a sub scanning direction. On the basis of second read image data obtained by reading a second face, the controller calculates a second sub scanning size, which is a size of the second face in the sub scanning direction. The controller determines the larger of the first sub-scanning size and the second sub-scanning direction size to a definitive sub scanning size, which is the size of the document in the sub scanning direction set on the document stage.

A medium conveying apparatus includes a conveyance roller to convey a medium, an imaging sensor to sequentially generate a line image acquired by imaging the medium conveyed by the conveyance roller, a processor to detect an inclination of the conveyed medium based on at least two first pixels in the line image, determine whether a part of the conveyed medium has passed through a position corresponding to a second pixel located outside the first pixels based on the line image, and stop conveyance of the medium by the conveyance roller when the detected inclination is equal to or greater than a threshold value and the processor determines that a part of the medium has passed through the position corresponding to the second pixel.

A position detection device includes a background member, a reader, and processing circuitry. The background member has a higher absorption characteristic in an invisible wavelength region than in a visible wavelength region. The reader opposite the background member irradiates a recording medium having a mark and the background member with light of a visible wavelength to output a visible image or with light of an invisible wavelength to output an invisible image. The processing circuitry is configured to: detect an end position of the recording medium and a position of the mark on the recording medium from a read image output from the reader; and select the visible or invisible image as the read image used for position detection, according to an absorption characteristic of a color material forming the mark read by the reader and an absorption characteristic of the recording medium in the invisible wavelength region.