# US 2002/0005888 A1 · Method for recording and reproducing information, apparatus therefor and recording medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2002/0005888 A1 - Document ID: US20020005888A1 - Status: Published application - Kind: A1 - Application number: 08/812,559 - Filed: 1997-03-07 - Published: 2002-01-17 - Earliest claimed: 1988-05-17 - Assignees: Dai Nippon Printing Co., Ltd. - Inventors: HIROYUKI OBATA; TAKASHI AONO; HIROSHI MOHRI; MASATO KOIKE; HIDEAKI AMANO; NORIKAZU SAITO; MAKOTO MATSUO; MINORU UTSUMI; CHIHAYA OGUSU; SHUNSUKE MUKASA; YOSHIAKI KUDO - Web page: https://patentgrep.com/patent/US20020005888A1 ## CPC - G06K 19/06046: {Constructional details} - G03G 5/02: Charge-receiving layers (G03G5/153 takes precedence) - G03G 15/04045: {for exposing image information provided otherwise than by directly projecting the original image onto the photoconductive recording material, e.g. digital copiers (G03G15/041, G03G15/043 take precedence)} - G03G 15/05: for imagewise charging, e.g. photoconductive control screen or optically activated charging means - G03G 15/18: of a charge pattern - G03G 15/221: {Machines other than electrographic copiers, e.g. electrophotographic cameras, electrostatic typewriters} - G03G 15/344: {by selectively transferring the powder to the recording medium, e.g. by using a LED array} - G03G 15/754: {relating to band, e.g. tensioning (G03G15/757 takes precedence)} - G03G 15/758: {relating to plate or sheet} - G03G 21/06: Eliminating residual charges from a reusable imaging member - G06K 15/12: by photographic printing {, e.g. by laser printers} - G06K 19/08: using markings of different kinds {or more than one marking of the same kind} in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means - G06K 19/10: at least one kind of marking being used for authentication, e.g. of credit or identity cards (verification of coded identity or credit cards in mechanisms actuated by them G07F7/12) - G09F 3/0292: {tamper indicating labels} - G11B 7/00: Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation {by modifying optical properties or the physical structure}, reproducing using an optical beam at lower power {by sensing optical properties}; Record carriers therefor (G11B11/00, G11B13/00 take precedence) - G11B 7/0045: Recording (G11B7/006, G11B7/0065 take precedence) - G11B 7/128: Modulators (G11B7/1245 takes precedence) - G11B 7/24: Record carriers characterised by shape, structure or physical properties, or by the selection of the material (characterised by the arrangement of information on the carrier G11B7/007) - G11B 9/00: Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor (G11B11/00 takes precedence {driving or moving of heads G11B21/02}) - G11B 9/08: using electrostatic charge injection; Record carriers therefor - G11B 11/00: Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor {(driving or moving of heads G11B3/02, G11B5/48, G11B7/08, G11B21/02)} - G11B 11/08: using recording by electric charge or by variation of electric resistance or capacitance {(G11B11/002, G11B11/10 take precedence)} - G11B 25/04: using flat record carriers, e.g. disc, card - H04N 1/028: for picture information pick-up - H04N 1/48: Picture signal generators (for halftone screening H04N1/52) - G03G 2217/0016: where the toner is conveyed over the electrode array to get a charging and then being moved - G11B 7/004: Recording, reproducing or erasing methods; Read, write or erase circuits therefor {(magneto-optical systems G11B11/105)} - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS - G11B: INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract In the information recording an reproducing method and apparatus according to the present invention, a piece of picture image information is recorded as an analog quantity or a digital quantity an information carrying medium in a planar manner at a high density, charge potential is read for outputting electric signals to correspond to the recorded picture image information and then the outputted signals are printed out by means of various display unit or output device, with high quality and high resolution as well as ease processing of the information. The information carrying medium provides a long period of storage of information and enables stored picture image information to be repeatedly reproduced with a picture quality according to need. Particularly, it is, according to the present invention, possible to read and output local potential of an information carrying medium with predetermined scanning density at a desired time, and so pictures of high quality may be output as a silver salt photograph is taken and reproduced by optically scanning the film. Thus, the present invention may be applied to a wide field including photographing, copying and printing. ## Claims ### Claim 1 An information recording and reproducing method comprising the steps of (a) preparing an information carrying medium including a photosensitive member, having a photoconductive layer, and an insulation layer arranged to face the photosensitive member; (b) storing a piece of input information in the information carrying medium ; and (c) reproducing the piece of the input information, stored in the step (d), in an electrical, optical or thermal manner. ### Claim 2 (depends on 1) An information recording and reproducing method as recited in claim 1, wherein the piece of input information is a piece of electrical information, optical information, thermal information or wave information. ### Claim 3 (depends on 1) An information recording and reproducing method as recited in claim 1, wherein the piece of the input information is a piece of aural information or picture image information. ### Claim 4 (depends on 1) An information recording and reproducing method as recited in claim 1, wherein the piece of the input information is stored as surface charges or inner charges. ### Claim 5 (depends on 1) An information recording and reproducing method as recited in claim 1, wherein the piece of the input information is stored as a concentration of a component of the information carrying medium or irregularity of a surface of the information carrying medium. ### Claim 6 (depends on 1) An information recording and reproducing method as recited in claim 1, wherein the piece of information reproduced is output by one of thermal dye transfer means, melting transfer means, ink jet means, microcapsule means, silver salt means, toner developing means and heat sensitive means. ### Claim 7 (depends on 1) An information recording and reproducing method as recited in claim 1, wherein the piece of information reproduced is displayed by one of a CRT, a liquid crystal display, an electrochromic display, a projector, a light emitting diode display, electroluminescence display, and a plasma display. ### Claim 8 (depends on 1) An information recording and reproducing method as recited in claim 1, wherein: the photosensitive member comprises a photoconductive layer with an electrode; the information carrying medium comprises an insulation layer with an electrode; during application of voltage across the electrodes, an image exposure is performed from one of the photosensitive member and the information carrying medium for storing the image as a piece of the image information. ### Claim 9 (depends on 8) An information recording and reproducing method as recited in claim 8, wherein the photosensitive member and the information carrying medium are placed in contact or in non-contact with each other. ### Claim 10 An information recording and reproducing method, wherein an information carrying medium is provided with an unexposed portion and/or a luminous portion. ### Claim 11 (depends on 10) An information recording and reproducing method as recited in claim 10, wherein potential of an image exposed portion is compensated by using potential of the unexposed portion and/or potential of the luminous portion as a reference potential. ### Claim 12 (depends on 10) An information recording and reproducing method as recited in claim 10, wherein the unexposed portion is formed by arranging a light shield portion on one surface of a backing member of the photosensitive member. ### Claim 13 (depends on 10) An information recording and reproducing method as recited in claim 10, wherein the unexposed portion is formed. by making part of an electrode of the photosensitive member opaque. ### Claim 14 (depends on 10) An information recording and reproducing method as recited in claim 10, wherein the unexposed portion is formed by providing a nonphotosensitive portion to the photosensitive member. ### Claim 15 (depends on 10) An information recording and reproducing method as recited in claim 10, wherein the photosensitive member comprises a portion serving as an electrode on one surface thereof to form the luminous portion. ### Claim 16 (depends on 10) An information recording and reproducing method as recited in claim 10, wherein the luminous portion is formed by illuminating a portion of the photosensitive member. ### Claim 17 (depends on 1) An information recording and reproducing method as recited in claim 1, wherein the reproducing of the piece of the information is carried out by reading potential of charges. ### Claim 18 (depends on 17) An information recording and reproducing method as recited in claim 17, wherein the reading of the charge potential comprises the steps of: arranging a detecting electrode to face the information carrying medium; and detecting the charge potential according to charges induced on the detecting electrode. ### Claim 19 (depends on 17) An information recording and reproducing method as recited in claim 17, further comprising a guard electrode arranged around the detecting electrode. ### Claim 20 (depends on 17) An information recording and reproducing method as recited in claim 17, further comprising an insulating layer formed one surface of each of the detecting electrode and the guard electrode. ### Claim 21 (depends on 17) An information recording and reproducing method as recited in claim 17, wherein the detecting electrode comprises an elongated rod-shaped electrode, and wherein a distribution of the potential is determined by scanning one surface of the information carrying medium according to CT method. ### Claim 22 (depends on 17) An information recording and reproducing method as recited in claim 17, wherein the detecting electrode is scanned in contact or in non-contact with the information carrying medium to take out charges, stored in the medium, in a potential value or a current value. ### Claim 23 (depends on 17) An information recording and reproducing method as recited in claim 17, wherein the reading of the charge potential is performed by toner developing the information carrying medium, exposing the developed medium to rays of light to produce reflected rays of light, and photoelectrically converting the reflected rays. ### Claim 24 An information recording and reproducing apparatus comprising: electrostatic potential measuring means for reading an electrostatic potential of an information carrying medium having an electrostatic latent image recorded; control means for controlling scan drive of the information carrying medium and/or the electrostatic potential measuring means, whereby the electrostatic latent image is developed by driving the information carrying medium and/or the electrostatic potential measuring means. ### Claim 25 (depends on 24) An information recording and reproducing apparatus as recited in claim 24, further comprising: an A/D converter for converting a measured analog signal to a digital signal; control means for receiving and image processing the digital signal and for controlling the information carrying medium and/or the electrostatic potential measuring means for drive to scan; and display means for displaying a picture image according to electrostatic latent image data given from the control means, whereby the electrostatic latent image is developed by driving the information carrying medium and/or electrostatic potential measuring means. ### Claim 26 (depends on 24) An information recording and reproducing apparatus as recited in claim 24, wherein the reading of the charge potential is performed by arranging a detecting electrode to face the information carrying medium to thereby detect potential due to charges induced on the detecting electrode. ### Claim 27 (depends on 24) An information recording and reproducing apparatus as recited in claim 24, further comprising a guard electrode arranged around the detecting electrode. ### Claim 28 (depends on 24) An information recording and reproducing apparatus as recited in claim 24, further comprising an insulating layer formed one surface of each of the detecting electrode and the guard electrode. ### Claim 29 (depends on 24) An information recording and reproducing apparatus as recited in claim 24, wherein the electrostatic potential measuring means comprises one of a current collecting detector, an electron beam type detector and a CT scan type detector. ### Claim 30 (depends on 24) An information recording and reproducing apparatus as recited in claim 24, wherein the reading of the charge potential is performed by toner developing the information carrying medium, exposing the developed medium to rays of light to produce reflected rays of light, and photoelectrically converting the reflected rays. ### Claim 31 An information recording and reproducing apparatus comprising a photosensitive member, including a photoconductive layer, and an information carrying medium having an insulation layer arranged to face the photosensitive member, whereby a piece of input information is stored in the information carrying medium. ### Claim 32 (depends on 31) An information recording and reproducing apparatus as recited in claim 31, wherein the photosensitive member has the photoconductive layer provided with an electrode on a front face thereof, wherein the information carrying medium has the insulating layer provided with an electrode on a front face thereof, and wherein the photosensitive member and the information carrying medium are arranged along an optical axis. ### Claim 33 (depends on 31, 32) An information recording and reproducing apparatus as recited in claim 31 or 32, wherein the photosensitive member and the information carrying medium are placed in contact or in non-contact with each other. ### Claim 34 (depends on 31, 32) An information recording and reproducing apparatus as recited in claim 31 or 32, further comprising switching means for entering and interrupting the piece of the input information, and wherein the piece of the input information is entered through the switching means. ### Claim 35 (depends on 34) An information recording and reproducing apparatus as recited in claim 34, wherein the switching means comprises a switch for applying and removing voltage across the electrodes. ### Claim 36 (depends on 34, 35) An information recording and reproducing apparatus as recited in claim 34 or 35, further comprising an optical system arranged in front of the photosensitive member so that an electrostatic latent image is formed through the optical system on the information carrying medium to correspond to an incident optical image. ### Claim 37 (depends on 36) An information recording and reproducing apparatus as recited in claim 36, wherein the optical system is a color filter. ### Claim 38 (depends on 36) An information recording and reproducing apparatus as recited in claim 36, the optical system comprises a columnar lens. ### Claim 39 (depends on 31, 32) An information recording and reproducing apparatus as recited in claim 31 or 32, further comprising an image converter arranged in front of the photosensitive member. ### Claim 40 (depends on 31, 32) An information recording and reproducing apparatus as recited in claim 31 or 32, wherein the information carrying medium is in the shape of a rectangular plate, a disc or a film. ### Claim 41 (depends on 34, 35) An information recording and reproducing apparatus as recited in claim 34 or 35, wherein the information carrying mediums is adapted to be continuously fed, and wherein the feed of the information carrying medium is interlocked in timing with actuation of the switching means. ### Claim 42 (depends on 31, 32) An information recording and reproducing apparatus as recited in claim 31 or 32, wherein the photosensitive member is sensitive to X-ray. ### Claim 43 (depends on 31, 32) An information recording and reproducing apparatus as recited in claim 31 or 32, wherein a substrate used for the electrode of one of the photosensitive member and the information carrying medium is transparent to a visible light, and wherein an incident optical image is imposed on the one. ### Claim 44 An information recording and reproducing apparatus comprising: a photosensitive member; an information carrying medium having recording portions and arranged to face the photosensitive member with a predetermined gap; and a cassette for incorporating the information carrying medium and the photosensitive member thereinto, the cassette having a window opening, each recording portion is adapted to be sequentially movable to the window opening. ### Claim 45 (depends on 44) An information recording and reproducing apparatus as recited in claim 44, wherein the information carrying medium comprises a film having frames, and wherein the frames of the film is sequentially fed in contact with one surface of a spacing member arranged to face the photosensitive member. ### Claim 46 (depends on 44) An information recording and reproducing apparatus as recited in claim 44, wherein the information carrying medium comprises a film having frames adapted to be fed sequentially under pressure of a spacer provided to the photosensitive member. ### Claim 47 (depends on 44) An information recording and reproducing apparatus as recited in claim 44, wherein the information carrying. medium has a disc shape and is adapted to rotate within the cassette. ### Claim 48 (depends on 44) An information recording and reproducing apparatus as recited in claim 44, wherein a bar code is indicted on part of one surface of the cassette for showing information storing conditions according to a material of the photosensitive member. ### Claim 49 (depends on 44) An information recording and reproducing apparatus as recited in claim 44, wherein the cassette has an integrated circuit memory mounted thereto. ### Claim 50 (depends on 31, 32) An information recording and reproducing apparatus as recited in claim 31 or 32, wherein the piece of the input information comprises rays of information light optically modulated with a piece of aural information. ### Claim 51 (depends on 31, 32) An information recording and reproducing apparatus as recited in claim 31 or 32, wherein the piece of input information comprises a piece of information light, optically modulated with a piece of aural information, and rays of picture image light. ### Claim 52 (depends on 50) An information recording and reproducing apparatus as recited in claim 50, wherein the piece of the information light comprises a beam of laser light optically modulated with a piece of aural information. ### Claim 53 (depends on 52) An information recording and reproducing apparatus as recited in claim 52, Wherein the modulation of the laser beam with the piece of aural information pulse code modulated. ### Claim 54 (depends on 31) An information recording and reproducing apparatus as recited in claim 31 or.32, wherein the piece of the aural information is stored in a circulating memory having a predetermined capacity, and wherein the laser beam is optically modulated by a read output of the circular memory, whereby the piece of the aural information is recorded for a predetermined time before and after exposure of recording of a piece of picture image information. ### Claim 55 An information recording and reproducing method in which there are provided: a photosensitive member having a photoconductive layer provided with an electrode on a front face thereof; an information carrying medium having an insulation layer provided with an electrode on a rear face thereof, the information carrying medium facing the photosensitive member, and the photosensitive member and the information carrying medium being arranged along an optical axis; and a switch for applying and removing voltage across the electrodes, an electrostatic latent image, corresponding to an incident optical image, being formed on the information carrying medium by actuating the switch, and wherein the photoconductive layer is made of a low resistance photoconductive material which is adapted to generate as carriers charges of the same polarity as the electrode of the photosensitive member. ### Claim 56 An information recording and reproducing method comprising the steps of : performing exposure of light under application of voltage for storing electrostatic latent image on an information carrying medium, the medium facing a photosensitive member, and wherein a dielectric member is interposed between the photosensitive member and the information carrying medium. ### Claim 57 (depends on 56) An information recording and reproducing method as recited in claim 56, wherein the dielectric member is a gas, liquid or solid. ### Claim 58 (depends on 56) An information recording and reproducing method as recited in claim 56, comprising the step of sealing the photosensitive member and the information carrying medium within a receptacle filled with a dielectric member including a gas or a liquid for exposure under application of voltage. ### Claim 59 An information recording and reproducing method comprising the steps of: arranging a photosensitive member and an information carrying medium to face to each other; forming an electrostatic latent image on the information carrying medium thus arranged by exposure of light under application of voltage thereby to store information; and erasing the electrostatic latent image by exposure of light under application of a reverse voltage. ### Claim 60 (depends on 59) An information recording and reproducing method as recited in claim 59, wherein a pattern of the light exposure under the reverse voltage is the same as a pattern of the light exposure for forming the electrostatic latent image. ### Claim 61 (depends on 59) An information recording and reproducing method as recited in claim 59, wherein a pattern of the light exposure under the reverse voltage is reverse to a pattern of the light exposure for forming the electrostatic latent image. ### Claim 62 An information recording and reproducing method, in which a photosensitive member and an information carrying medium are arranged to face to each other and an electrostatic latent image is formed on the information carrying medium by exposure of light under application of voltage across the photosensitive member and the information carrying medium, wherein uniform exposure of light is carried out by applying of voltage of homopolarity or heteropolarity for erasing the electrostatic latent image. ### Claim 63 An information recording and reproducing method in which a photosensitive member and an information carrying medium are arranged to face to each other and an electrostatic latent image is formed on the information carrying medium by exposure of light under application of voltage across the photosensitive member and the information carrying medium, wherein the electrostatic latent image is erased by application of voltage. ### Claim 64 An information recording and reproducing method in which a photosensitive member and an information carrying medium are arranged to face to each other and an electrostatic latent image is formed on the information carrying medium by exposure of light under application of voltage across the photosensitive member and the information carrying medium, wherein an electrode of the photosensitive member is arranged to face the information carrying medium, and wherein the electrostatic latent image is erased by application of voltage between the electrode and an electrode of the information carrying medium. ### Claim 65 An information recording and reproducing method, in which a photosensitive member and an information carrying medium are arranged to face to each other and an electrostatic latent image is formed on the information carrying medium by exposure of light under application of voltage across the photosensitive member and the information carrying medium, wherein uniform charging is carried out by corona discharging for erasing the electrostatic latent image. ### Claim 66 An information recording and reproducing method, in which a photosensitive member and an information carrying medium are arranged to face to each other and an electrostatic latent image is formed on the information carrying medium by exposure of light under application of voltage across the photosensitive member and the information carrying medium, wherein the information carrying medium is heated for erasing the electrostatic latent image. ### Claim 67 (depends on 66) An information recording and reproducing method as recited in claim 66, wherein the heating of the information carrying medium is performed by infrared radiation, resistance heating, microwave heating and heating with a thermal head. ### Claim 68 An information recording and reproducing method, in which a photosensitive member and an information carrying medium are arranged to face to each other and an electrostatic latent image is formed on the information carrying medium by exposure of light under application of voltage across the photosensitive member and the information carrying medium, wherein ultraviolet radiation is imposed on the information carrying medium for erasing the electrostatic latent image. ### Claim 69 (depends on 68) An information recording and reproducing method as recited in claim 68, wherein the ultraviolet radiation has the same pattern of an image as the exposure of light under the voltage application. ### Claim 70 (depends on 68) An information recording and reproducing method as recited in claim 68, wherein the information carrying medium is exposed to uniform ultraviolet radiation. ### Claim 71 An information recording and reproducing method, wherein in which a photosensitive member and an information carrying medium are arranged to face to each other and an electrostatic latent image is formed on the information carrying medium by exposure of light under application of voltage across the photosensitive member and the information carrying medium, wherein the photoconductive member is brought into contact with one face of the information carrying medium whereby the electrostatic latent image is erased by scanning on the one face of the information carrying medium. ### Claim 72 An information recording and reproducing method, in which a photosensitive member and an information carrying medium are arranged to face to each other and an electrostatic latent image is formed on the information carrying medium by exposure of light under application of voltage across the photosensitive member and the information carrying medium, wherein steam is sprayed to one face of the information carrying medium for erasing the electrostatic latent image. ### Claim 73 An information recording and reproducing apparatus using an information carrying medium in which picture image data read from an original are stored, the stored picture image data is read for picture image processing in a computer to produce data with a picture image processed, the data with the picture image processed are stored and then stored date are read for output to a recording medium, the improvement in which the computer includes the information carrying medium as an outer memory thereof for storing the picture image data. ### Claim 74 (depends on 73) An information recording and reproducing apparatus as recited in claim 73 wherein an electrostatic latent image is formed in the information carrying medium by D/A converting the output of the computer to analog signals, modulating a beam of laser with the converted analog signals and imposing the laser beam modulated on the photosensitive member. ### Claim 75 (depends on 74) An information recording and reproducing apparatus as recited in claim 74, wherein the photosensitive member is strip-shaped, the modulated laser beam is scanned by a rotary polygonal mirror to be imposed on the photosensitive member, and the the information carrying medium is adapted to move. ### Claim 76 (depends on 73) An information recording and reproducing apparatus as recited in claim 73, wherein reading of the stored data is carried out by reading electrostatic potential of the information carrying medium. ### Claim 77 (depends on 73) An information recording and reproducing apparatus as recited in claim 73, wherein the picture image processed data are adapted to be printed out directly from the computer. ### Claim 78 An information recording and reproducing apparatus in which rays of information light from an original, placed in position, are read by means of an input scanner, the improvement wherein an electrostatic latent image is formed on an information carrying medium by imposing rays of the information light, and wherein a piece of information of an original is read by reading potential of the electrostatic latent image formed. ### Claim 79 (depends on 78) An information recording and reproducing apparatus as recited in claim 78, wherein the reading of the electrostatic latent image is carried out by scanning over the information carrying medium of a planar shape by a potential reading head. ### Claim 80 (depends on 78) An information recording and reproducing apparatus as recited in claim 78, wherein the electrostatic latent image on the information carrying medium is an image of an enlarged original or an image of a reduced original. ### Claim 81 (depends on 78) An information recording and reproducing apparatus as recited in claim 78, wherein imposing of rays of the information light on the photosensitive member is carried out through a color filter. ### Claim 82 An information recording and reproducing apparatus comprising: read means for reading data of an electrostatic latent image in an information carrying medium in which a piece of information of a printing original is recorded as the electrostatic latent image by exposure of light under application of voltage; signal processing means for processing the electrostatic latent image data read; display means for displaying an image according to the electrostatic latent image data; and recording means for recording the electrostatic latent image data, signal processed, in the information carrying medium, and wherein the information carrying medium is adapted to use as an original for printing. ### Claim 83 An information recording and reproducing apparatus, further comprising input unit for inputting a piece of instruction information, including an enlargement ratio and/or trimming position to the signal processing means, and wherein the information carrying medium is adapted to record the piece of the inputted instruction information together with the piece of the printing original information. ### Claim 84 An information recording and reproducing apparatus comprising: electrostatic latent image reading means for reading electrostatic latent image in an information carrying medium to provide read signals; signal processing means for signal processing the read signals, the signal processing including a color correction operation; display means for displaying a color image according to the processed read signals; setting up means for setting up a scanner; and exposure means for exposing an photoreproduction process film to rays of light, whereby the electrostatic latent image is read for color display. ### Claim 85 (depends on 84) An information recording and reproducing apparatus as recited in claim 84 in which the electrostatic latent image contains a piece of picture image information having color original data color sepated. ### Claim 86 (depends on 84) An information recording and reproducing apparatus as recited in claim 84, wherein the electrostatic latent image includes picture image information and instruction information, the picture image information and the instruction information being obtained by color separation of a color original. ### Claim 87 (depends on 84) An information recording and reproducing apparatus as recited in claim 84, further comprising a printer for producing a color hard copy. ### Claim 88 An information recording and reproducing method comprising the steps of: arranging an original in contact or non-contact with an information carrying medium to face to each other, the original having a pattern, including a conductive portion and an insulating portion, formed thereon, the information carrying medium having an insulation layer formed on an electrode substrate; and applying d.c. voltage between the conductive portion of the original and the electrode of the information carrying medium for forming an electrostatic latent image on the information carrying medium to correspond to the pattern of the original. ### Claim 89 An information recording and reproducing method comprising the steps of: arranging a cylindrical original to face a cylindrical electrode, the cylindrical original having a pattern,, including a conductive portion and an insulating portion, formed thereon; continuously supplying an insulative film between the original and the cylindrical electrode and in contact or non-contact with the cylindrical electrode; applying d.c. voltage between the conductive portion of the original and the facing cylindrical electrode for forming an electrostatic latent image on the insulative film to correspond to the pattern of the original; and toner developing the electrostatic latent image to form a toner image on the insulative film. ### Claim 90 (depends on 89) An information recording and reproducing method as recited in claim 89, further comprising the steps of transferring the toner image on the insulative film is transferred and then fixed to a transfer paper. ### Claim 91 (depends on 88, 89, 90) An information recording and reproducing method as recited in claim 88, 89 or 90, wherein the original comprises an electrode substrate having insulative pattern thereon. ### Claim 92 (depends on 88, 89, 90) An information recording and reproducing method as recited in claim 88, 89 or 90, wherein the original has the conductive portion passes through the insulative portion, and wherein the original has one surface, faced to the information carrying medium, the insulative portion and the conductive portion being flush with each other on the one surface of the original. ### Claim 93 (depends on 92) An information recording and reproducing method as recited in claim 92, wherein the conductive portion, passing through the insulative portion, is changed in resistance according to position thereof. ### Claim 94 (depends on 88, 89, 90) An information recording and reproducing method as recited in claim 88, 89 or 90, wherein the original has a recessed portion in one surface of the conductive portion, the recessed portion defining a recess pattern. ### Claim 95 (depends on 94) An information recording and reproducing method as recited in claim 94, wherein the insulative portion comprises an insulative material, and wherein the insulative material is filled in the recess portion. ### Claim 96 (depends on 88, 89, 90) An information recording and reproducing method as recited in claim 88, 89 and 90, wherein the original uses a photosensitive member which exhibits persistent conductivity by exposure of rays of light in the medium of which electrode substrate has a photoconductive insulating layer formed thereon. ### Claim 97 (depends on 96) An information recording and reproducing method as recited in claim 96, wherein a spectral sensitizer is added to the photoconductive insulative layer medium which exhibits sustaining conductivity. ### Claim 98 (depends on 97) An information recording and reproducing method as recited in claim 97, wherein the exposure of light is carried out by a light source having a constant brightness or a light source having a continuously variable brightness. ### Claim 99 An information recording and reproducing method, in which an electrostatic latent image is formed on an information carrying medium by exposing a photosensitive member to rays of light while voltage is applied between the photosensitive member and the information carrying medium, the improvement wherein the information carrying medium is in the shape of a drum, and wherein the photosensitive member is strip-shaped,wherebythe exposure is carried out by using rays of scanning light or slitted light. ### Claim 100 An information recording and reproducing method in which an electrostatic latent image is formed on an information carrying medium by exposing a photosensitive member to rays of light while voltage is applied between the photosensitive member and the information carrying medium, the improvement wherein the information carrying medium comprises a sheet of a continuous paper or a roll of a film, and wherein the photosensitive member is strip-shaped,whereby the exposure is carried out by using rays of scanning light or slitted light. ### Claim 101 An information recording and reproducing method in which an electrostatic latent image is formed on an information carrying medium by exposing a photosensitive member to rays of light while voltage is applied between the photosensitive member and the information carrying medium, the improvement wherein the information carrying medium comprises a sheet of a continuous paper or a roll of a film, wherein the photosensitive member is planar for performing planar exposure of rays of light, and wherein the information carrying medium is intermittently fed. ### Claim 102 An information recording and reproducing apparatus wherein there are provided a light source for illuminating a plane of an original to obtain rays of information light, a photosensitive member on which rays of information light are imposed, an information carrying medium arranged to face the photosensitive member, and a developer for toner developing the information carrying medium, wherein an electrostatic latent image is formed in the information carrying medium by the exposure while voltage is applied between the photosensitive member and the information carrying medium, and wherein the electrostatic latent image is toner developed. ### Claim 103 (depends on 102) An information recording and reproducing apparatus as recited in claim 102, wherein the information carrying medium is planar and is subjected to fixing after subjected to developing. ### Claim 104 (depends on 102) An information recording and reproducing apparatus as recited in claim 102, wherein the information carrying medium is in the shape of a drum, and wherein the developed toner picture image is fixed after it is transferred to a paper and a film. ### Claim 105 (depends on 104) An information recording and reproducing apparatus as recited in claim 104, wherein the light source is a slit light source, and wherein the photosensitive member is strip-shaped and parallel to an axis of the drum. ### Claim 106 (depends on 104) An information recording and reproducing apparatus as recited in claim 104, wherein the electrostatic latent image of the information carrying medium is erased by an eraser. ### Claim 107 (depends on 102) An information recording and reproducing apparatus as recited in claim 102, wherein the information carrying medium comprises a continuous paper or a continuous film, and wherein the toner development is carried out by a magnetic brush formed by a rotary magnet. ### Claim 108 An information recording and reproducing method wherein there are provided a photosensitive member, having a photoconductive layer formed with an electrode at a front face thereof, and an information carrying medium having an insulation layer provided at a rear face thereof with an electrode, and wherein: the information carrying medium is arranged to face the photosensitive member, image exposure is carried out from the photosensitive member or the information carrying medium while voltage is applied across the electrodes, then the information carrying medium is separated from the photosensitive member, and the separated information carrying medium is subjected to toner development for forming a toner picture images. ### Claim 109 (depends on 108) An information recording and reproducing method as recited in claim 108, wherein the photosensitive member and the information carrying medium are arranged in contact or in separation to each other. ### Claim 110 (depends on 108) An information recording and reproducing method as recited in claim 108, a color filter is arranged in front of the photosensitive member. ### Claim 111 (depends on 108) An information recording and reproducing method as recited in claim 108, wherein the information carrying medium has a rectangular shape, a disc shape or a film. ### Claim 112 (depends on 108) An information recording and reproducing method as recited in claim 108, wherein a substrate of one of both the photosensitive member and the information carrying medium allows light of visible area to penetrate therethrough, the one being exposed to an incident optical image. ### Claim 113 A card recording medium wherein the information carrying medium has a card shape, and wherein data are stored as an electrostatic latent image. ### Claim 114 (depends on 113) A card recording medium as recited in claim 113, wherein a region of electric charges stored includes a high electric charge density region, charges in the high electric charge density region is usable as an energy source. ### Claim 115 (depends on 113, 114) A card recording medium as recited in claims 113 or 114, wherein a hologram image is recorded as the electrostatic latent image in part thereof. ### Claim 116 (depends on 113, 114) A card like recording medium as recited in claims 113 or 114, wherein a specified pattern of electrostatic latent image is recorded in part thereof. ### Claim 117 (depends on 113, 114) A card recording medium as recited in claim 113 or 114, further comprising an electrostatic label attached thereto, the label recording a hologram image or a specified electrostatic latent image in part thereof. ### Claim 118 (depends on 113, 114) A card recording medium as recited in claim 113 or 114, comprising an electrostatic label recording a hologram image or a specified electrostatic latent image pattern in part thereof. ### Claim 119 (depends on 113, 142) A card recording medium as recited in claim 113 or 142, further comprising an integrated circuit incorporated therein for providing a function of an integrated circuit card or a smart card. ### Claim 120 (depends on 113, 114) A card recording medium as recited in claim 113 or 114, further comprising a magnetic recording region formed in part thereof for providing a function of a magnetic card. ### Claim 121 (depends on 113, 114) A card recording medium as recited in claim 113 or 114, wherein the card like information carrying medium has a hollow portion, and further comprising a floppy disc memory rotatably set in the hollow portion, ### Claim 122 (depends on 113, 114) A card recording medium as recited in claim 113 or 114, wherein the information carrying medium comprises in part thereof an optical information recording region including a high reflectance portion and a low reflectance portion for providing a function of an optical card. ### Claim 123 (depends on 113, 114) A card recording medium as recited in claim 113 or 114, wherein the information carrying medium comprises an optical information recording region including a read only memory, a read and write memory or a read, write and erasable memory. ### Claim 124 An information recording and reproducing apparatus comprising irradiating means for applying rays of information light and a photosensitive member including a photoconductive layer, wherein an electrostatic recording card is arranged to face the photosensitive member for storing data as an electrostatic latent image in the electrostatic record card. ### Claim 125 A label recording medium for preventing forging, comprising an information carying medium. adapted to record in part thereof a holgram image or a specified electrostatic latent image. ### Claim 126 (depends on 125) A label recording medium for preventing forging as recited in the claim 125 wherein the medium comprises a rear face, and further comprising a adhesive layer provided on the rear face thereof.