Abstract: A magneto-optical recording medium includes a readout layer has in-plane magnetization at room temperature and in which a transition occurs from in-plane magnetization to perpendicular magnetization when temperature thereof is raised, and a recording layer for recording thereon information. The composition of the readout layer varies in a direction perpendicular to the surface thereof, and in the readout layer, the Co density on the light incident side is higher than the Co density on the interface between the readout layer and the recording layer. Therefore, the Curie temperature on the reproducing light incident side of the readout layer is high and the the polar Kerr rotation angle in reproducing increases, thereby achieving improvements in a reproducing signal quality.

Abstract: An apparatus and a method for writing and reading digital information on a magnetic memory are disclosed. In the apparatus, no mechanical contact between the memory and a magnetic detection means is made because the magnetic state of a respective domain is detected by detecting change of the whole magnetic fluxes induced by entire domains formed on the memory. The writing and reading operation are carried out by scanning the domain with beam irradiation in order to destruct superconductivity or ferromagnetic characteristics of the domain resulting in trapping or releasing of magnetic fluxes. The change in magnetic flux is detected by the detection means.

Abstract: A recording/reproducing apparatus using optical magnetic tape, comprises an objective lens for focusing the light generated from a light source, and an acousto optic scanner and an ultrasonic wave generator for vertically or horizontally displacing the focal point of the objective lens in order to scan a light beam onto the optical magnetic tape transferred along the outer periphery of a rotating drum. According to the disclosed principles, recording/reproducing at high speeds is possible, and a high data-transmission speed is obtained with a low rotating speed of the rotating drum, so that the instrument is stabile, small, and simple in construction.

Abstract: An image reproducing apparatus for reproducing an image recorded on successive frames of a film having a storage medium which information for each frame is readable from and writable on, the reproducing apparatus includes a pick-up device for picking up the image from the film; a read and write device for reading and writing frame information from and on the storage medium in a specified relative movement to the film; a drive device for rendering the specified relative movement and such special relative movement as fast transporting, rewinding; a directing device for directing the special relative movement; and a controller for keeping the drive device from rendering the special relative movement when the information reading and writing is performed.

Abstract: A magneto-optical recording and readout method involves making a tape-type magneto-optical recording medium run in front of at least a single pole of a permanent magnet or an electromagnet at a position forwards of an optical head relative to the running direction of the recording medium, without contacting the magnet so as to cross at a substantial right angle to magnetic force lines, thereby initializing the recording medium or erasing information therein. The tape-type magneto-optical recording medium has at least a magneto-optical recording layer on one side of a base film having a thickness of not more than 50 .mu.m. Recording of information is effected by irradiating beams to the recording medium under application of an external magnetic field of not more than 24 kA/m.

Abstract: An amorphous alloy containing uranium and a member selected from the group of N, P, As, Sb, Bi, S, Se, Te, Po and mixtures thereof; and use thereof for storage medium, light modulator or optical isolator.

Abstract: A magneto-optical recording medium having a layered structure consisting of a first dielectric layer, magnetic recording layer, second dielectric layer and reflecting layer successively formed on a transparent substrate plate can be imparted with improved performance relative to the recording sensitivity and the C/N ratio when the recording layer and the second dielectric layer each have such a thickness that the angle .delta. given by the equation .delta.=tan.sup.-1 (.epsilon./.theta.k), in which .epsilon. is the Kerr ellipticity of the regenerative light and .theta.k is the Kerr rotation angle, does not exceed 10.degree., the thickness of the recording layer being in the range from 8 nm to 13.5 nm and the thickness of the second dielectric layer satisfying the relationship given by the inequality0.06.ltoreq.nd/.lambda..ltoreq.0.14,in which d is the thickness of the second dielectric layer, .lambda.

Abstract: This invention relates to a multi-layer magneto-optic recording medium having an information recording layer and an initializing layer that can be overwritten by light modulation, and in which adjacent layers, including auxiliary layers provided for more efficient transfer from the initializing layer to the recording layer, are coupled by an exchange force. This structure enables high-density, high-speed recording of audio information, visual information, and computer data.

Abstract: A motion picture film is provided on which a digital sound track for audio data is formed along the film running direction. Data tracks are disposed in the digital sound track along a direction normal to the film running direction and extend in the film running direction. A data pattern having a block of audio data is recorded in the data tracks, along with tracking patterns representing each data track. Each of the tracking patterns is recorded at one side of the data track along the film running direction with an offset in the film running direction of one half the width of a data track from the center of that data track.

Abstract: A method and apparatus for recording onto or playing back from a magneto optical disk eight channels of digital audio data. Eight channels of serial audio data, for example in a AES/EBU format is converted to parallel data and provided to one or more buffers via a DMA controller. After buffering, the data may be recorded onto a MO disk via an SCSI.

Abstract: A retrieval apparatus for retrieving information in a data storage medium. The retrieval apparatus includes a decision function for deciding the longest character train corresponding to an inputted character train which exists on the storage medium and a correction function for converting the inputted retrieval character train into the longest character train existing on the storage medium. In the case that the item corresponding to the inputted retrieval character train does not exist within the storage medium, the decision function detects the maximum effective portion of the retrieval character train and the correction function changes the retrieval character train to the longest character train in response to a correction instruction by the operator.

Abstract: The information processor uses a portable memory formed on a transparent substrate which is able to be overwritten by laser power modulation system. The memory includes a disk type recording medium rotatably incorporated within a thin case, and carries out write/read/erase by means of a first magnetic field application device, a second magnetic field application device, and an optical head radiating light through the case which has at least a transparent light-incident portion. The case includes therein a rotation means for rotating the recording medium within the case, thereby enabling even further reduction in size of the information processor.

Abstract: A magneto-optical recording medium comprising, on a substrate, at least a first magnetic layer made of a rare earth amorphous alloy and a second magnetic layer made of a rare earth amorphous alloy having a relatively smaller coercivity Hc.sub.2 than that of the first magnetic layer, wherein the following relationship is satisfied at an operation temperature:Hw.sub.1 -Hexc.sub.1 >Hc.sub.2 -Hexc.sub.2where Hw.sub.1 represents the magnetic domain wall coercivity of the first magnetic layer, Hexc.sub.1 represents the magnitude of the exchange magnetic field exerted on the first magnetic field and Hexc.sub.2 represents the magnitude of the exchange magnetic field exerted on the second magnetic layer is used, to obtain a magneto-optical recording medium with no increase in the noises by overwriting, and without reduction of C/N ratio after repeating recording for a number of cycles, a recording method and overwriting method using the media and a magneto-optical recording device.

Abstract: A portfolio photo compact disc visual/audio display system for displaying images and any associated audio stored on a photo compact disc. The system includes first and second photo compact disc players for playing the photo compact disc and a control device. Each photo compact disc player has an output representative of one image and any associated audio stored on the photo compact disc. The control device has a display output and an internal switch coupled to the outputs of the first and second photo compact disc players and to the display output. The control device is able to control the switch to selectively change the display output between the images and any associated audio from the outputs of the first and second photo compact disc players without a noticeable transitional delay.

Abstract: An information storage medium having both a read-only optical storage portion and a magnetic storage portion that can be written and read is provided. There is also disclosed a drive unit for use with this information storage medium. To control the optical head of this drive unit, a system controller and a CLV servomechanism are provided and form a control portion. When information is written or read to or from the magnetic storage portion, this control portion commands a disk-rotating mechanism to control the magnetic head of the drive unit based on information read from the optical storage portion of the medium. The magnetic storage portion can have either a single track or plural tracks. Interference between the optical head and the magnetic head can be avoided. The drive unit can adapt itself to the information storage medium having the optical storage portion of a large storage capacity and the magnetic storage portion that can be easily rewritten.

Abstract: This invention provides a magnetic recording medium wherein visible patterns can be written, in which a heat sensitive layer is formed on a magnetic recording layer and a metallic thin layer is formed on said heat sensitive layer. The metallic thin layer of said magnetic recording medium can by roughed by using a material containing minute particles to form a roughed heat sensitive layer on the magnetic recording layer and then depositing the metallic thin layer on said heat sensitive layer. In using said magnetic recording medium, information corresponding to at least a part of the information recorded in the magnetic recording layer can be written as visible patterns.

Abstract: A magnetooptical disk has two axially space-apart translucent recording layers. Each translucent recording layer is axially closer to an outer surface of the disk than to the other recording layer. This geometry enables closely axially disposing a magnetic field biasing means to each of the recording layers from opposite axial sides of the disk, respectively. Laser beams are axially introduced into the disk to pass through one of the translucent recording layers in a defocussed state to reach a second recording layer in a focussed state. In this manner, recording in the second layer is effected by a modulated magnetic bias field using a constant intensity laser beam. Two sets of laser beams and magnetic biasing means are provided for recording on both data in both of the recording layers.

Abstract: An optical disk having two transparent and a refelection film. The reflection film is made of a non-linear optical material in which reflectance increases according to intensity of incident light thereto. The reflection film has a multiple reflectance.

Abstract: In a reproducing system, a reproducing start position of recording information is set in a first reproducing device reproducible in a second reproducing device. The reproducing start position set in the first reproducing device is stored in a detachable external storage medium. The external storage medium is detached from the first reproducing device, attached to a second reproducing device, and the reproducing start position stored in the external storage medium is read into the second reproducing device. Thus the reproducing start position set by the first reproducing device will be reproduced in the second reproducing device to control a location of selection, such as musical numbers.

Abstract: A diskette comprising a jacket, a liner material disposed within said jacket, a flat circular media having a magnetic coating on both sides disposed within said liner material, a hub attached at the center of said media, a plurality of optical positioning tracks on at least one of said sides of said media, and a media type code optically embossed on at least one of said sides of said media. The media type code contains information about the physical properties of the particular diskette that will allow a disk drive unit to auto-configure itself to allow optimum data communication and performance.

Abstract: An apparatus for recording and reproducing data on and from an optical memory has regions for recording data by light only. Code data and image data are processed from a memory within the apparatus. A first retrieval data is added to the code data and a second retrieval data is added to the image data, and the first retrieval data and code data and the second retrieval data and image data are recorded onto an optical memory. Either the first or second retrieval data is designated and depending upon the designation, either the code data corresponding to the first retrieval data or the image data corresponding to the second retrieval data is processed from the optical memory.

Abstract: An information recording apparatus has first and second openings arranged near a field coil and flow guides beside the openings, so that an air current generated by a rotation of the medium is circulated through a space between a field coil and the information recording medium, as well as a space formed on an upper portion of said field coil. In the apparatus, an optical pick up is locked with respect to reckless stoppers with a space. Also, a field holder is arranged to be separated from a cassette case holder, but when the cassette case holder is moved in a horizontal direction and then in a perpendicular direction to be mounted on a turn table, the field holder is made to face the information recording medium. This arrangement prevents overheating and improves durability.

Abstract: A disk system comprising an upper and lower head gimbal assembly, a coarse positioning servo system that includes a stepper motor for 135 TPI operation and a voice coil motor type servo for 1251 TPI operation that is driven by a optical servo system which locates optical track positioning information previously recorded on 3.5 inch microfloppies. The optical system focuses a spot of infrared light on the microfloppy which is channeled back to a detector. Each head gimbal includes a ceramic slider with two air bearing surfaces. A very high density magnetic core is positioned in one air bearing surface and high density magnetic core is located in the other air bearing surface. Both upper and lower sliders are such that the floppy disk media is pinched between them. The gaps of the magnetic cores are positioned within the leading edge half of their respective air bearing surfaces and take advantage of the tendency of the sliders to plow into the floppy disk media.

Abstract: There is disclosed an improved optically readable disk having an optically readable portion arranged on said disk so as to be readable by an optical reading unit and a magnetically readable and writable portion arranged on said disk so as to be both readable and writable by a magnetic read/write unit. The magnetically readable and writable portion of the disk preferably includes data or information recorded thereon defining a desired playback parameter and/or sequence for the data or information optically recorded on the optically readable portion of the disk. Also disclosed is an improved optical disk playback apparatus comprising a drive unit for rotatably driving an optical disk, an optical reading unit operatively arranged for reading data optically recorded on said disk as said disk is rotated and a magnetic read/write unit operatively arranged for both magnetically reading data from and magnetically writing data to a magnetically readable and writable portion of said disk as said disk is rotated.

Abstract: On a record surface of an optical disk whereon basic information is recorded in a first mode of using surface irregularities, such as pits and lands, a layer of an information recording medium is formed for record and reproduction of additional information in a second mode which is different from the first mode. The information recording medium may be either a magneto-optical recording medium or a write-once recording medium. When the surface irregularities are formed along a record track with a first density, the additional information is preferably recorded in the layer of the write-once recording medium by using a second density different from the first density as the second mode along an additional track which is on the record track.

Abstract: A beam of light used to etch servo tracks on a magnetic disk is steered with an acousto-optical device to maintain the beam in concentrical patterns while mechanically moving the optics which generate the beam of light continuously radially of the disk.

Abstract: The present invention is a photo compact disk (CD) 10 combined with a disk reading system or player 62 in which the disk 10 has a user markable surface on the opposite side of the disk 10 from the picture information storage surface or layer. The user markable side includes a first space 12 for indicating the contents of the photo CD. A second area 14 is provided for indicating how the photos stored on the CD should be displayed. The second area 14 is divided into tracks 18-24 and each track is divided into photograph frame regions 21. Each picture stored on the compact disk has one four quadrant user markable region 21 where the quadrants indicate whether the picture should be skipped, turned clockwise or counterclockwise 90 degrees or turned 180 degrees before display. The printing which outlines the areas and provides photograph numbers is LED light transparent. The photo CD player 62 includes an LED scanner 64 for scanning the second area as the CD rotates.

Abstract: When recording n pieces of music on a magnetic record carrier (3), two groups of pieces of music are formed. A first group of g.sub.1 pieces of music is recorded on the A-side of the record carrier and a second group of g.sub.2 (=n-g.sub.1) pieces of music is recorded on the B-side. The groups are selected such that the total time duration of each of the two groups T.sub.tot (g.sub.1), T.sub.tot (g.sub.2) is nearest to half the total time duration of all the n pieces of music (T.sub.tot /2).

Abstract: An optical disk is provided with a pre-recorded ROM zone and at least one of the write-once zone and an erasable-writable zone. Two types of information are pre-recorded in the ROM zone, including first information for controlling reading from and writing to the non-ROM zone or zones, and second information for use in data information production. Information is recorded and read as localized differences in reflectivity on the disk. A laser used for reading and writing is operated at a first, lower power level for reading and at a second, higher power level for writing. Data information is created using second information read from the ROM zone, and is written to and reproduced from the non-ROM zone or zones.

Abstract: Process for memorizing the references of recordings carried on a medium. The process is active in play mode in a device provided with means for recognizing a medium and automatically carries out the following steps for each recording carried on said medium: monitoring the continuity of reproduction, automatically memorizing the reference of said recording if it is played in its entirety or if a predetermined proportion of it is played.

Abstract: An electric charge recording/reproducing apparatus for focusing an electromagnetic radiation ray containing a recording object information signal onto a photoconductive layer member (PCL) in an electric charge image recording medium (D) comprising a laminate of at least an electric charge retention layer, member (CHL), photoconductive layer member (PCL) and a first electrode (E) using an objective lens (318) which is driven and displaced in an optical axis direction by an actuator (ACT) of an automatic focusing system; and to integratedly connect and fix a moving electrode (Em) onto the objective lens (318), the moving electrode (Em) being intended to generate an electric field for positioning the electric charge image recording medium (D) in the electric field of a predetermined electric field intensity, towards the electrode in, the electric charge image recording medium (D).

Abstract: Apparatus for reading out information magneto-optically recorded in a magnetic layer comprises a single, polarization-preserving optical guide (e.g., an optical fiber or two-dimensional waveguide) for transmitting plane-polarized read-out radiation to the recording layer, as well as for transmitting such radiation, upon being reflected by the recording layer, toward a photodetector. Either the TE or TM axis of the optical guide is initially aligned with the plane of polarization of the readout source. A polarization rotator, such as a Faraday rotator, is positioned between the output end of the optical guide and the recording medium. The Faraday rotator serves to rotate the plane of polarization of the readout radiation by a total of 45 degrees, whereby the optical guide transmits reflected light in both TE and TM modes equally. A pair of photodiodes cooperate with a polarizing beam splitter to differentially detect the Kerr rotation angles (.+-..THETA..sub.

Abstract: A device is for specifying and calculating a reproduction time of an optical disk player such that the reproduction time is specified and calculated to coincide with a recording length of one side of a magnetic tape. The optical disk player reproduces audio information stored on an optical disk in the form of a plurality of recorded audio segments. The magnetic tape is used to record at least one of the plurality of recorded audio segments reproduced by the optical disk player.

Abstract: An information recording and erasing method and apparatus of an optical memory medium including a substrate, a guard film, and an intermediate layer portion so disposed between said substrate and said guard film as to include at least a recording material layer having a phase changing with temperature and include at least one good conductor layer, comprising the steps of supplying magnetic flux varying relatively to said good conductor layer to generate eddy currents within said good conductor layer, and heating said recording material layer with heat generated in said good conductor due to the eddy current loss to effect information recording and erasing with respect to said recording material layer.

Abstract: A video transcript retriever includes a control unit, a control interface, a tape unit and a display unit. The control unit includes a control computer having a software package consisting of control software, text software and edit software. The control software has the capacity to permit simultaneous operation of both the test software, which is capable of storing and searching voluminous documents, and the edit software, which has the capacity to operate the tape unit with precision. The text software is capable of performing a search function that at any time can provide the exact location of a specific passage within the searched document in terms of page and line. The edit software has the capacity to provide at any time the timecode number pre-recorded on the videotape that corresponds to a specific passage.

Abstract: An image/audio information recording/reproduction apparatus has a first recording device for receiving a first electrical signal representing image information and recording the image information on a dynamic recording medium of a given type, a static recording medium of a given type for storing a second electrical signal digitally representing audio information accompanying the image information, and a second recording device which is electrically connected to the static recording medium. The second recording device determines a memory address in the static recording medium of audio information accompanying the image information in a manner corresponding to a recording position of the image information on the dynamic recording medium, and records the audio information in the static recording medium in accordance with the determined memory address. The static recording medium includes a non-volatile semiconductor memory, such as an electrically erasable programmable read only memory.

Abstract: An optical disk includes a substrate disk and an additional recording layer formed on a surface of the substrate disk. A series of pits and lands is formed on the surface of the substrate disk for recording basic information which includes address and data information along a basic recording track. The additional recording layer is for voluntarily and additionally recording additional information along an additional recording track positioned over the basic recording track. The basic and additional information can be reproduced by a basic information reproducing circuit and additional information recording and reproducing circuit, respectively. The additional information recording and reproducing circuit also records an additional information along the additional recording track so that the additional information is recorded over portions where the data information of the basic information is recorded.

Abstract: In the present invention, there is provided an optical disk medium wherein a ROM region having data already recorded therein and capable of only optically reproducing (reading) the data as well as a RAM region capable of optically recording and reading out therein and therefrom are interlacedly located in such a positional relationship that enables the substantially continuous and high-speed accessing operation to the read-only ROM and rewritable RAM data, and some of stationary data to be stored suitably in the ROM region are stored in positional relationship closer to some of additional data to be stored suitably in the RAM region which are especially closely related to the some of the stationary data.

Abstract: A compact disc (CD) or CD-ROM disc having at least one surface region containing a field of digitally encoded, reproducible data, outside of a central region of the disc is provided with a second non-volatile read/write memory IC chip or memory device, e.g., an E.sup.2 -PROM, embedded in the central region adjacent to the data field. Input/output (I/O) terminal is also embedded in the central region and provides for communication with and access to the second nonvolatile memory IC chip device. The terminal has one surface exposed adjacent to the data field for external access by a CD or CD-ROM access player or playback apparatus. The terminal has a series contact engagement means through which access is made by complementary terminal means provided in the player whereby the movement of the disc is terminated and information may be read into or read out of the second nonvolatile memory IC chip device.

Abstract: An apparatus for generating a magnetic field varying in response to an information signal, which comprises a base plate made of electrical insulating material, a magnetic core mounted on one of opposite surfaces of the base plate, the magnetic core having a central leg portion extending through a hole formed in the base plate so as to cause its end face to appear on the other of the opposite surfaces of the base plate, a coil member wound on the central leg portion of the magnetic core to be supplied with a current varying in response to the information signal, and a capacitance detecting electrode formed with a thin conductive layer mounted on the other of the opposite surfaces of the base plate to be opposite to a recording medium having a conductive layer, the capacitance detecting electrode being provided with a cutout for restraining eddy current loss caused in the capacitance detecting electrode.

Abstract: A control circuit for use in a magneto-optic data recording system is disclosed. The control circuitry includes proportional-integral-derivative (PID) circuitry for controlling the rotation position of a permanent magnet. Acceleration circuity is used in controlling the rotational movement of the permanent magnet. The outputs from the PID circuitry and the acceleration circuitry are selectively applied to drive circuity using a switch. The drive circuity supplies current to actuators for moving or controlling the position of the permanent magnet.

Abstract: An over write capable magnetooptical recording medium comprises a substrate and magnetic layers including first and second layers each having a perpendicular magnetic anisotropy. In the medium, a product of a saturated magnetic moment and a coercivity of the first layer is larger than that of the second layer, and non-magnetic element is doped in the first layer.

Abstract: Storage capacity of a magnetic recording medium is increased by providing a nonconductive layer over a magnetic layer on which magnetic data is writable in a series of recording tracks, and applying a pattern of electrostatic charges to the nonconductive layer above at least one of the recording tracks to write track-position-denoting servo information in overlying relation to magnetic data. The pattern may be applied by electrostatic charges selectively of negative or positive polarity that are imprinted while the medium is in a mold or advanced over an electro-photographic charge transfer drum, for thereby preprinting the pattern as a step in fabrication of the medium.

Abstract: An information read/write storage system for reading and writing data to and from a flexible magneto-optic media is shown to include a magnetic recording member, having a recording head positioned proximate the media, for recording information onto the media at a recording point, the recording point being defined as the area of the media wherein information is being recorded at any given time and an optical read/write assembly for providing focused light onto the media during reading and writing, for receiving reflected light from the media to read the information and for continuously providing focused light onto the media for heating the recording point while the magnetic recording member is recording.

Abstract: A synchronizing circuit for a dubbing apparatus which is capable of a dubbing a signal played back from a playback unit to a recording unit in accordance with the operation of a dubbing command key. The synchronizing circuit essentially includes a circuit for checking the recording unit to determine if the recording unit has been brought into a stable recording condition and for producing a synchronous recording request signal, a device for driving the playback unit in response to the synchronous recording request signal, a circuit for checking the playback unit to determine if the playback unit is ready to playback and for producing a synchronous recording start signal, and a device for driving the recording unit into a recording mode in response to the synchronous recording start signal.

Abstract: An apparatus for recording an input signal on a magneto-optical recording medium. The apparatus includes an optical head for applying a light beam to the medium, a circuit for delaying the input signal by a time for preventing a bit recorded on the medium from shifting relative to the input signal, a magnetic head for applying a magnetic field modulated in conformity with the delayed signal to that portion of the medium to which the light beam is applied, and a motor for moving the medium relative to the light beam.

Abstract: A magneto-optic recording medium records data in a single, direct-overwrite step. The medium includes a magneto-optical storage layer and a magnetic biasing layer disposed in selected heat conductive relationship with the storage layer. The first magnetic field is generated externally of the storage layer at a first energy level of a laser to set the magnetic orientation of domains at the storage layer. At a second energy level of the laser, which is higher than the first energy level, the magnetic biasing layer provides a second magnetic field greater than the first magnetic field for setting the magnetic orientation of domains in the storage layer.

Abstract: This invention provides a magneto-optical recording medium comprised of a substrate, a base layer of zinc oxide or indium oxide sputtered onto the substrate and a multilayer recording film sputtered onto the base layer of zinc oxide or indium oxide, wherein the base layer or zinc oxide or indium oxide is from about 200 A to about 4500 A (about 20 nm to about 450 nm) thick, preferably from about 200 A to about 2000 A (about 20 nm to about 200 nm) thick, the multilayer recording film is a platinum/cobalt or a palladium/cobalt multilayer film consisting of alternating layers of platinum and cobalt or palladium and cobalt, and the substrate is transparent to the radiation used to record and read.

Abstract: The magnetic recording medium comprises a substrate, a recording coating of a ferromagnetic metal and an aromatic organic polymer having a weight-average molecular weight of 1,000 to 5,000,000. The magnetic recording medium is produced by a plating method or a vaporization method so as to form co-deposition of the metal and the polymer. The magnetic recording medium produced is improved in resistance to corrosion.

Abstract: An apparatus for manufacturing an optical memory device, which comprises supplying rolls for continuously supplying a sheet-like substrate, a masking endless belt having a plurality of windows of size corresponding to the optical memory device, rolls for moving the sheet-like substrate and the masking endless belt in the same direction and at the same speed, a recording portion forming device for forming recording portions on the substrate through the masking endless belt, a guide truck providing device for providing along the substrate guide trucks for guiding a light beam, and a cutting device for cutting the substrate to a predetermined size.