Abstract: In an optical printing system for printing an image on a recording sheet, adopted as the recording sheet is a sheet coated with microcapsules on one surface thereon. Each microcapsule envelopes a first component which changes color when reacts with a second component. The second component may be coated on the recording sheet or may be coated on a separate developing sheet. The microcapsule further envelopes a third component which varies the mechanical strength of microcapsule when light is projected thereto. An image is formed on the recording sheet by selectively exposing a light thereto in accordance with the image to be printed thereon, and the microcapsules on the recording sheet whose mechanical strength is low are then ruptured by rupturing means. Thereby, the visible image is developed. The exposing is carried out by repeating a predetermined-period exposure at a predetermined interval against the same portion of the recording sheet.

Abstract: An image recording apparatus having a first exposure unit for forming a latent image corresponding to an original image on a photosensitive pressure sensitive recording medium, and a second exposure unit for electrostatically forming a developer particle image. The developer particle image is transferred onto the photosensitive pressure sensitive recording medium, and the thus transferred developer particles are reacted with chromogenic material of the photosensitive recording medium at a pressure developing unit so that a visible image is provided on another sheet medium. A method for recording the image includes the steps of effecting a first exposure for forming the latent image, effecting a second exposure for forming the developer particle image, electrostatically transferring the developer particle image onto the recording medium, and pressure developing the image to provide a visible image on a separate plane paper.

Abstract: An image forming apparatus including an image forming device for image-wise exposing a photosensitive medium to form an image, and a reading device for reading information which is provided on the photosensitive medium and which is associated with image forming conditions in which the image forming is operated, and which is provided on said photosensitive medium. A control device is provided to control the image forming device according to the information read by said reading device.

Abstract: An image forming apparatus comprising an image data inputting device for inputting image forming data to the image forming apparatus, a control unit for adjusting operational conditions such as an amount of light of a light source, an insertion amount of color filters into a light path and so on in the image forming appartus for performing the copying processes on the basis of the image forming data and a mode switching unit for selecting one of a first mode for roughtly inputting the image forming data and a second mode for minutely inputting the image forming data.

Abstract: A recording system including an exposing device for image-wise exposing a pressure-sensitive photosensitive medium according to source image information, so as to form thereon latent images, and a developing device for applying a pressure to the image-wise exposed photosensitive medium so as to cause a chemical reaction with a developer material, to thereby develop the latent images into visible images on a recording medium. The recording system further includes a coating device for applying the developer material to the recording medium.

Abstract: A developer sheet having a high light resistivity comprises a layer having an electrophilic developer coated thereon, and a layer having transparent or semitransparent particles containing an ultraviolet-ray absorbent and a process for producing the developer sheet.

Abstract: A toner for forming a developer medium which is capable of reacting with a chromogenic material to produce a visible dye image, comprising developer particles and thermoplastic particles. Each developer particle includes a developer material capable of reacting with the chromogenic material. The thermoplastic resin particles has a smaller grain size than the developer particles. Each developer particle carries a multiplicity of the thermoplastic particles deposited on its surface.

Abstract: A method for preventing loosening of a bolt fastened to a metallic member coated with an anticorrosive paint film without removing the paint film. Anticorrosive painting is applied on a metallic member, and then the painted film is thinned by applying an urging pressure onto a bolt seat surface portion of the painted metallic member by means of a press rod. The bolt seat surface portion of the metallic member also may be flattened by applying an urging pressure on the bolt seat surface portion by means of a press rod or by machining the bolt seat surface portion before the anticorrosive painting is applied on the metallic member, and then the painted film is thinned by applying an urging pressure onto the above-mentioned bolt seat surface portion by means of a press rod.

Abstract: An image transfer system including a photosensitive medium having a layer of microcapsules formed on a substrate, an exposing device having a cathode ray tube for emitting a radiation for imagewise exposing the photosensitive medium, and a CRT control device for controlling the cathode ray tube. Each microcapsule includes a photosensitive resin whose strength is varied according to an amount of exposure thereof to the radiation, and contains a chromogenic material capable of chemically reacting with a developer material, to form a visible image. The CRT control device stores image signals representative of a picture frame, and applying the image signals to the cathode ray tube, to cause the tube to emit the radiation for forming a latent image of the picture frame on the photosensitive medium, so that the latent image is subsequently developed into a visible image.

Abstract: In an image recording apparatus, a desired recording sheet is automatically selected from a sheet feeding section that is provided with plural types of image recording sheets at least one of which is a photosensitive and pressure-sensitive recording sheet, based on encoded data that corresponds to the individual types of recording sheets. The selected recording sheet is fed through feeding means to an image recording section where an image recording operation is performed in accordance with the type of the selected sheet.

Abstract: In a heat-fixing method, a sheet is prepared whose one side is coated with a release-agent layer. The sheet is superimposed upon at least a recording side of a recording medium having carried thereon an unfixed image such that the coated release-agent layer is faced to the recording side. Alternatively, the sheet is folded double into two sections such that release-agent layer sections on the respective two sections of the folded sheet are faced each other, and then the recording medium is sandwiched between the two sections of the folded sheet. The recording medium as well as the sheet is heated. Subsequently, the sheet is peeled off the recording medium.

Abstract: An image transfer system wherein latent images formed on a photosensitive medium by exposure to a radiation according to image signals are developed into visible images, the photosensitive medium having a basic minimum amount of exposure to the radiation, which substantially defines a lower limit of a density-variable range in which a density of the visible images is varied according to an amount of exposure of the medium to the radiation. The present image transfer system includes a first device, a second device and a developing device. The first device is adapted to expose the medium a predetermined basic amount not larger than the basic minimum amount. The second device exposes local areas of the medium to a controlled intensity of the radiation represented by the image signals, and thereby cooperates with the first device to form the latent images on the photosensitive medium. The latent images are developed into the visible images by the developing device.

Abstract: A method and an apparatus of exposing a photosensitive medium for forming thereon a latent image which corresponds to an original image to be reproduced and which is developed into a visible image. The photosensitive medium has a basic minimum amount of exposure to a radiation, below which a density of the visible image remains constant and above which the density varies with an amount of exposure to the radiation. An entire recording surface of the photosensitive medium is evenly exposed to a first radiation by a predetermined first exposure amount determined by the basic minimum amount, and each label area of the recording surface is exposed to a second radiation by a second exposure amount which corresponds to a density in a corresponding local area of the original image, so that the first and second exposure amounts cooperate to form the latent image.

Abstract: Disclosed is a method of recording a picture onto a photosensitive and pressure-sensitive paper, which comprises the steps of: forming in advance a mask original form of a film having a light-transmitting portion and a non-light-transmitting portion corresponding to information of the picture; exposing the photosensitive and pressure-sensitive paper through the mask original form to thereby form a latent image on the photosensitive and pressure-sensitive paper; and pressure-fixing the photosensitive and pressure-sensitive paper carrying the latent image formed thereon.

Abstract: An image recording system including a photosensitive medium having a layer of microcapsules formed on a substrate, each of the microcapsules having a photosensitive resin which is curable upon exposure to a radiation, and a colorless chromogenic material or color former which is capable of chemically reacting with a developer material, to form a visible image. The system further includes an exposing device for forming a latent image on the photosensitive medium according to image signals, by exposure of the medium to the radiation. The latent image is developed into a visible image. A communication device is provided for translating facsimile signals into corresponding picture signals. The facsimile signals are received from a remote facsimile transmitter through a communication channel and represent an image of a subject copy.

Abstract: An optical control circuit is formed by a first transistor, a first resistive element connected between control electrode and first output electrode of the first transistor. The first output electrode forms an emitter or source of the transistor, a second resistive element is connected between the control electrode and second output electrode of the first transistor. The second output electrode forms a collector or drain of the transistor and an array of photovoltaic elements is connected in parallel to the second resistive element. A second transistor has a control electrode connected to the second output electrode of the first transistor. High speed operation of the second transistor can be assured, any noise voltage applied to the control electrode of the second transistor can be effectively bypassed, and the first transistor can be simultaneously formed in a substrate of the second transistor to be integralized therewith.

Abstract: A process and system for forming images on a recording sheet, according to source image information as provided on an original, wherein a pressure-sensitive photosensitive sheet is image-wise exposed to a radiation, to form thereon latent images corresponding to the source image information, and a pressure is applied to the image-wise exposed photosensitive sheet, to cause a chemical reaction and thereby develop the latent images into visible images on the recording sheet. The thus pressurized recording sheet is heated so that the chemical reaction is promoted to thereby increase a density of the visible images.

Abstract: An optical image transfer system for transferring images to a photosensitive medium, which has a light source for generating a radiation having a first wavelength, and a wavelength converter disposed in a light path between the light source and the photosensitive medium, for converting the first wavelength of the radiation generated by the light source, to a second wavelength which is shorter than the first wavelength and to which the photosensitive medium is sensitive. The wavelength converter may be used in a system wherein images are transferred to a color-imaging photosensitive medium.

Abstract: The improved photo-sensitive recording medium carrying the photo-curing microcapsules, capable of minimizing the variation of its "sensitivity" and therefore the image recording speed at the time when the optical image is exposed.A stable "sensitivity", which makes a duplicating operation stable in any environmental conditions, is obtained by fabricating the capsule walls of the photo-curing microcapsules with inorganic substances.

Abstract: Conventionally, heat treatment was necessary in the final stage of producing nodular cast iron products to give the nodular cast iron with desired mechanical properties. This was necessary because of the loss of graphitization capability of the molten metal when it is being formed into nodular cast iron during the process of spheroidization, and the heat treatment is therefore required to decompose cementite formation and thereby promote graphitization. The process of producing nodular cast iron according to the present invention can achieve the promotion of graphitization and the increase in the number of graphite nodules, which are both important for the production of high-quality thin-shell cast iron products, through the synergetic effect of processing the molten metal with a graphitization agent such as SiC or CaC.sub.2 and of adding a graphite atomization agent such as Bi.