Abstract: In an image forming apparatus for forming a color image by superposing component color images, a control device obtains position data representing a forming position of each of plural registration mark images for the component color images with respect to a positional reference value arbitrarily determined, divides the position data into each of a unit reference range representing a range in which one mark image is formed, converts the position data divided for each unit reference range into those based on respective reference values representing the front edge of the unit reference ranges, extracts the position data representing ranges common to the mutually overlapping ranges each of which is represented by a couple of position data corresponding to the rising and falling edges of a passage timing pulse as read position data of the mark image of the component color, and calculates the amounts of positional deviations of the component color images from one another on the basis of the position data extracted.

Abstract: In an image forming apparatus for forming a color image by superposing component color images, a control device obtains position data representing a forming position of each of plural registration mark images for the component color images with respect to a positional reference value arbitrarily determined, divides the position data into each of a unit reference range representing a range in which one mark image is formed, converts the position data divided for each unit reference range into those based on respective reference values representing the front edge of the unit reference ranges, extracts the position data representing ranges common to the mutually overlapping ranges each of which is representing by a couple of position data corresponding to the rising and falling edges of a passage timing pulse as read position data of the mark image of the component color, and calculates the amounts of positional deviations of the component color images from one another on the basis of the position data extracted

Abstract: In an image forming apparatus for forming a color image by superposing component color images, a control device obtains position data representing a forming position of each of plural registration mark images for the component color images with respect to a positional reference value arbitrarily determined, divides the position data into each of a unit reference range representing a range in which one mark image is formed, converts the position data divided for each unit reference range into those based on respective reference values representing the front edge of the unit reference ranges, extracts the position data representing ranges common to the mutually overlapping ranges each of which is represented by a couple of position data corresponding to the rising and falling edges of a passage timing pulse as read position data of the mark image of the component color, and calculates the amounts of positional deviations of the component color images from one another on the basis of the position data extracted.

Abstract: A method for soldering a semiconductor optical device including a resin-made optical lens to an object by a reflow soldering process using a lead-free solder, and a semiconductor optical device for use in the method.

Abstract: A method for soldering a semiconductor optical device including a resin-made optical lens to an object by a reflow soldering process using a lead-free solder, and a semiconductor optical device for use in the method. A semiconductor optical device including a silicone resin-made optical lens as the resin-made optical lens is used.

Abstract: An image forming apparatus, comprising: an image trailing edge position determination device which determines an image data trailing edge position in a full bleed printing mode, an image data generating device which generates image data in which a position determined by the image trailing edge position determination device is an image data trailing edge, wherein a toner image is formed and outputted on the recording medium based on the image data generated by the image data generating device, in the full bleed printing mode.

Abstract: An image forming apparatus, comprising: a control device which controls forming of a marginal area at least on one of sides of a recording medium in a full bleed printing mode, in which a toner image is formed and outputted based on an image data whose size is greater than that of a recording medium used for image forming through electricphotographing process on an entire area of the recording medium.

Abstract: A method for soldering a semiconductor optical device including a resin-made optical lens to an object by a reflow soldering process using a lead-free solder, and a semiconductor optical device for use in the method.

Abstract: An image forming apparatus includes: a recording-media supplying tray for storing a recording medium; a print section for printing an image on the recording medium; a storing section for storing an adjustment value for a printing of the image in the print section related to a type of the recording medium or the recording-media supplying tray for each of two sides of the recording medium; and a control section for controlling the print section so that the printing of the image is adjusted for each of the two sides depending on the adjustment value for each of the two sides, which is stored in the storing section.

Abstract: In an image forming apparatus for forming a color image by superposing component color images, a control device obtains position data representing a forming position of each of plural registration mark images for the component color images with respect to a positional reference value arbitrarily determined, divides the position data into each of a unit reference range representing a range in which one mark image is formed, converts the position data divided for each unit reference range into those based on respective reference values representing the front edge of the unit reference ranges, extracts the position data representing ranges common to the mutually overlapping ranges each of which is representing by a couple of position data corresponding to the rising and falling edges of a passage timing pulse as read position data of the mark image of the component color, and calculates the amounts of positional deviations of the component color images from one another on the basis of the position data extracted

Abstract: In an image forming apparatus for forming a color image by superposing component color images, a control device obtains position data representing a forming position of each of plural registration mark images for the component color images with respect to a positional reference value arbitrarily determined, divides the position data into each of a unit reference range representing a range in which one mark image is formed, converts the position data divided for each unit reference range into those based on respective reference values representing the front edge of the unit reference ranges, extracts the position data representing ranges common to the mutually overlapping ranges each of which is represented by a couple of position data corresponding to the rising and falling edges of a passage timing pulse as read position data of the mark image of the component color, and calculates the amounts of positional deviations of the component color images from one another on the basis of the position data extracted.

Abstract: In an image forming apparatus for forming a color image by superposing component color images, a control device obtains position data representing a forming position of each of plural registration mark images for the component color images with respect to a positional reference value arbitrarily determined, divides the position data into each of a unit reference range representing a range in which one mark image is formed, converts the position data divided for each unit reference range into those based on respective reference values representing the front edge of the unit reference ranges, extracts the position data representing ranges common to the mutually overlapping ranges each of which is represented by a couple of position data corresponding to the rising and falling edges of a passage timing pulse as read position data of the mark image of the component color, and calculates the amounts of positional deviations of the component color images from one another on the basis of the position data extracted.

Abstract: An image forming apparatus includes: a recording-media supplying tray for storing a recording medium; a print section for printing an image on the recording medium; a storing section for storing an adjustment value for a printing of the image in the print section related to a type of the recording medium or the recording-media supplying tray for each of two sides of the recording medium; and a control section for controlling the print section so that the printing of the image is adjusted for each of the two sides depending on the adjustment value for each of the two sides, which is stored in the storing section.

Abstract: In an image forming apparatus for forming a color image by superposing component color images, a control device obtains position data representing a forming position of each of plural registration mark images for the component color images with respect to a positional reference value arbitrarily determined, divides the position data into each of a unit reference range representing a range in which one mark image is formed, converts the position data divided for each unit reference range into those based on respective reference values representing the front edge of the unit reference ranges, extracts the position data representing ranges common to the mutually overlapping ranges each of which is represented by a couple of position data corresponding to the rising and falling edges of a passage timing pulse as read position data of the mark image of the component color, and calculates the amounts of positional deviations of the component color images from one another on the basis of the position data extracted.

Abstract: A cathode ray tube including a color selecting, electrode having a plurality of metal tapes; a rectangular frame for holding the color selecting electrode under tension; a plate spring having one end fixed to the frame and the other end having an engaging hole; and a panel having a pin for engaging the engaging hole of the plate spring, the panel being held to the frame by the plate spring; wherein a resonance frequency of the plate spring is different from a resonance frequency of the metal tapes. Since the resonance frequency of the plate spring is different from the resonance frequency of the metal tapes, possible resonance of the metal tapes with a large amplitude by the vibrations of the plate spring due to external vibrations applied to the cathode ray tube can be prevented. Therefore, even though the color selecting electrode has a fine pitch with a large screen and a high definition, the cathode ray tube has vibration resistance to prevent color deviation or the like due to the vibrations.

Abstract: An image forming system, including: an image forming machine, provided with a rewritable storage for storing a first program, for operating based on the first program so as to conduct image forming on a recording medium; the file administrative system, provided with an administrative storage for storing the second program which is an upgraded version of the first program; and a network for connecting the image forming machine with the file administrative system. The image forming machine includes: a setting controller for setting a first area, where contents of the storage is rewritable, and a second area where contents of the storage is not rewritable; an accessing controller for accessing a file administrative system with a program in the second area to obtain a second program; and rewriting controller for rewriting the first program stored in the first area to the second program.

Abstract: A resistance element which is formed on a substrate by resistors and which divides and supplies high voltage to an electron gun of a cathode ray tube, wherein part or all of the substrate is covered by a high resistance conductive material layer as a topmost layer, and a cathode ray tube having the same.

Abstract: An electron gun without deviation of diameter between grids, having a good object point diameter shape, and having a high cut-off voltage, which is cheap and has high performance, and a cathode ray tube provided with the same. The electron gun is provided with a spacer of a columnar shape which has surfaces facing each other on its two end surfaces, a beam aperture penetrating the spacer between the end surfaces, and conductive films provided on the two end surfaces, in which at least the circumferential wall of the beam aperture is constituted by a high resistance conductive material, the conductive films being used to constitute the grids and the beam aperture being constituted as an aperture for an electron beam.

Abstract: A color-selecting apparatus of a color display device which can effectively suppress vibration generated in a color-selecting electrode system, wherein one side of a supporting plate spring is fixed to a frame via a holder, and the other side of the supporting plate spring is fixed to the frame. The supporting plate spring is constituted by laminating flat plate springs, and the flat plate springs relatively move by deformation accompanying the vibration from the outside. The vibrational energy is consumed by the frictional energy generated between them.

Abstract: A minute-particle iron oxide red pigment slurry is formed by adding sodium silicate to a minute-particle iron oxide red pigment slurry, and used to form a red filter formed between a phosphor layer of a color cathode ray tube and a panel thereof. Therefore, even if the red filter is brought in contact with a black matrix under the condition of a process of manufacturing the color cathode ray tube at high temperature, the red filter does not discolor the black matrix.