Abstract: A composite material has a plate shape and has a first surface and a second surface. The second surface is opposite to the first surface. The composite material includes a plurality of first layers and at least one second layer. The first layers and the second layer are alternately layered along a thickness direction of the composite material such that the first layers are located at the first surface and the second surface. Each of the first layers is a layer including copper. The second layer is a layer of a molybdenum powder compact impregnated with copper. A compressive residual stress of 50 MPa or less acts on each of the first layer located at the first surface and the first layer located at the second surface.

Abstract: An image reading apparatus includes: plural image pickup elements which are arranged unidirectionally, each image pickup element including plural photoelectric transducers that convert reflected light from an original document into pixel signals, and a forwarding unit that serially forwards pixel signals acquired by the photoelectric transducers; a dividing unit that divides outputs of the photoelectric transducers into plural processing paths so that pixel signals acquired by photoelectric transducers located on both sides of a boundary between adjacent image pickup elements are included in the same division unit; and an interpolation unit that executes pixel interpolation, using the pixel signals acquired by the photoelectric transducers located on both sides of the boundary among the pixel signals divided by the dividing unit.

Abstract: A duplex simultaneous reading apparatus having an image reading unit for simultaneously reading a first surface and a second surface of a document, the duplex simultaneous reading apparatus includes: a detection unit for detecting any specified pattern image from image data read by the image reading unit; and a selection unit for selectively inputting the read image data of the first surface of the document and the read image data of the second surface to the detection unit in block units, wherein the detection unit detects the specified pattern image in the first surface or the second surface of the document, from the block-unit image data inputted by the selection unit.

Abstract: An image reading apparatus includes: plural image pickup elements which are arranged unidirectionally, each image pickup element including plural photoelectric transducers that convert reflected light from an original document into pixel signals, and a forwarding unit that serially forwards pixel signals acquired by the photoelectric transducers; a dividing unit that divides outputs of the photoelectric transducers into plural processing paths so that pixel signals acquired by photoelectric transducers located on both sides of a boundary between adjacent image pickup elements are included in the same division unit; and an interpolation unit that executes pixel interpolation, using the pixel signals acquired by the photoelectric transducers located on both sides of the boundary among the pixel signals divided by the dividing unit.

Abstract: An image-forming apparatus includes a reading portion that reads an image of an original document, a detecting portion that detects a specific pattern image embedded in image data, a document size detecting portion that detects a size of the original document, and a controller that controls an output of the image data in accordance with the specific pattern image, and also controls not to output the image data if the size of the original document detected is smaller than a given size.

Abstract: An image-processing apparatus includes a scanning portion that scans a document in which information is embedded; an image-outputting portion that outputs an image of the document that has been scanned; a detecting portion that detects information from the image of the document that has been scanned; an abnormality determining portion that determines whether or not there is an abnormality in the image of the document that has been scanned; and a controller that controls outputting of the image from the image-outputting portion, on the basis of a detection result by the detecting portion and a determination result of the abnormality determining portion.

Abstract: A duplex simultaneous reading apparatus having an image reading unit for simultaneously reading a first surface and a second surface of a document, the duplex simultaneous reading apparatus includes: a detection unit for detecting any specified pattern image from image data read by the image reading unit; and a selection unit for selectively inputting the read image data of the first surface of the document and the read image data of the second surface to the detection unit in block units, wherein the detection unit detects the specified pattern image in the first surface or the second surface of the document, from the block-unit image data inputted by the selection unit.

Abstract: An image reader reads an image on a sheet document while feeding the sheet document by an automatic document feeder (ADF). A CCD sensor includes first pixel rows and a second pixel row. The first pixel rows read R, G, B color components of a document image while scanning the document in a main scanning direction. The second pixel row is disposed at a predetermined distance in a sub-scanning direction from the first pixel rows. The second pixel row reads one color component of the document image. The image reader uses the CCD sensor to detect noise component on image data read by the first pixel rows or the second pixel row based on each of image data read by the first and second pixel rows and to eliminate the detected noise component.

Abstract: CCD1 as an image reading part reads a copy at the upstream and downstream of reading positions, and image data B and A at each of the reading positions are obtained from an output delay circuit and a shading correction circuit, respectively. A streak detector 8 compares the image data A with B, and outputs black streak detecting data indicating that the image data A contains black streaky noises, when the image data is not coincident in succession as to a plurality of pixels arrayed in the sub-scanning direction. A streak eliminator normally outputs the image data A, but it outputs the image data B instead of the image data A with regard to the pixels from which the black streak detecting data containing the noise is outputted. The image data reading device of present invention being thus constructed, the device is able to accurately detect streaky noises by adhesion of thrashes to the reading unit, even if there are speed variations in the copy feeding.

Abstract: An image reader reads an image on a sheet document while feeding the sheet document by an automatic document feeder (ADF) A CCD sensor includes first pixel rows and a second pixel row. The first pixel rows read R, G, B color components of a document image while scanning the document in a main scanning direction. The second pixel row is disposed at a predetermined distance in a sub-scanning direction from the first pixel rows. The second pixel row reads one color component of the document image. The image reader uses the CCD sensor to detect noise component on image data read by the first pixel rows or the second pixel row based on each of image data read by the first and second pixel rows and to eliminate the detected noise component.

Abstract: A printer comprises a skew correction mechanism for a roll paper between a roll paper loading section and a recording section. The skew correction mechanism has a pair of first roller and second roller each having a guide surface for the roll paper, arranged in the transverse direction of the roll paper and eccentrically mounted on respective shafts. A skew of the roll paper is detected by a skew sensor, and the first and second rollers is rotated by a predetermined angle in the opposite directions to obtain different path lengths for the roll paper between both the guide surfaces of the rollers, thereby correcting the skew feed of the roll paper.