Abstract: A step-and-scan exposure method in which a mask has a plurality of patterns and the number of patterns to be transferred to each shot area of a photosensitive substrate varies. The scanning and stepping movements are controlled in accordance with the number of patterns transferred, and dimensions of a pattern illumination area are varied in accordance with the patterns to be transferred. Transfer of a pattern to a shot area is omitted when an image of the pattern on the shot area would extend beyond the photosensitive substrate. Elimination of exposure scanning movements for patterns that are not to be transferred permits rapid movements of the mask and the substrate to scanning start positions.

Abstract: Disclosed are a photographic method which including optically dividing the picture plane of a great-size original into two areas and photographing said areas with a specified combination of a lens having a narrow angle of view with two or three pairs of mirrors to form the images of the original on the same plane, and a photosensitive material printing apparatus utilizing the above photographing method.

Abstract: A document processing system for performing multiple document processing tasks while the documents travel in a straight line document path is provided. The document processing system may include a transport system for transporting the documents in a straight line path, a sensing system for sensing the presence of the document, an optical system for projecting the image of the document, a camera module for receiving the projected image and storing it onto film, a film marking system for placing blips on the film adjacent the document image, a film numbering system for placing alphanumeric characters on the film adjacent the document image, an endorsing system for placing a printed endorsement on one side of the document, an electro-optical scanning system for scanning the image of the document processing the signal into a bit mapped image or for use with external communications devices, scanning for bar code symbology, and imprinting characters on the documents.

Abstract: A photographic printer for printing negative images on a negative film onto photographic paper. The printing direction can be changed over between "lateral" and "longitudinal" without changing the feed direction of the negative film. A reflecting mirror is inclined by 45.degree. with respect to the optical axis of the light emitted from a light source to the negative film and is supported to be rotatable about the optical axis. A driving unit is provided to rotate the reflecting mirror by 90.degree. about the optical axis between a reference position and a second position. Exposure stages are provided on the optical axes of the light beams reflected by the reflecting mirror when the mirror is in its reference position and second position, respectively. The photographic paper is guided through the exposure stages. According to the position of the mirror, negative images are printed on the paper at one of the two exposure stages.

Abstract: A flow camera equipped with a microprocessor based control system accepts large original documents in continuous, moving fashion and photographs them through a specifically shaped slotted aperture positioned between the original document and an objective lens. The originals are illuminated during exposure simultaneously from the front and the back, recording congruent images from two-sided material such as engineering drawings on translucent media having positionally related information on both sides. The light from the underneath side, opposite the lens, not only reveals and exposes the image on the second side but it enhances the quality and sharpness of the primary image on the side toward the lens. Avoidance of image loss is accomplished by using in the optical system a single mirror which deflects the optical path substantially less than 90.degree..

Abstract: A variable magnification copier apparatus includes an optical system which incorporates two pairs of moving mirror assemblies which are moved to maintain object and image conjugate requirements following magnification changes. Also included is a constant focal length lens movable between two segments of a folded optical path. The optical system provides a magnification range of between 0.45X and 2.0X, while positioning the optical elements in a compact design. The lens does not move along the optical path, but rather remains fixed in position along one path segment so long as magnification values are selected within a certain range. When the magnification value is selected outside the predetermined range, the lens moves to an adjacent segment of the optical path and remains in a second, fixed position so long as further magnification values are selected within a second range. When a range is selected outside the second range, the lens is moved back to the first position.

Abstract: A rotary camera for photographing a plurality of original documents on microfilm and for recording information relating to the photographed original documents together with data concerning the conditions for photographing additional necessary data. The rotary camera has an exposure roller on which images of the original documents are focused to be photographed and unidimensionally arranged light emitting elements opposed to the exposure roller. The light emitting elements are selectively energized so that the microfilm is exposed to the data-writing lights forming any desired images of the data in the form of letters, numerals or marks while moving in contact with the exposure roller. The data to be recorded is designated and is put into the control system through a keyboard. A jam-mark may be recorded on the microfilm as the data in response to an output from a jamming detector.

Abstract: A reproduction magnification of an image to be reproduced is inputted through a inputting device. A projection optical system is adjusted according to the reproduction magnification, and then projects image light reflected from an original in the form of a slit onto a photosensitive material sheet. As projecting the slit image light, the original and the photosensitive material sheet are synchronously fed each other.

Abstract: A method and apparatus for printing arbitrarily large circuit patterns using small field optics. The use of small field imaging optics allows the use of high NA lens designs capable of printing smaller geometries than otherwise would be possible. The field size in a first axis is extended by scanning an object and image past the lens; the field size in a second axis is extended by stitching the scans together in an overlapped fashion. This overlapped printing technique averages many random and systematic errors and allows the placement of field adjacencies within die boundaries. The effective field size of such a system is limited only by reticle size and stage mechanics. The apparatus further includes error correction loops for enhancing stage synchronization accuracy and for reducing field adjacency errors.

Abstract: When an input reproduction scale m is equal to a value mla which lies in a reproduction scale section ml, rated moving speeds Ula and U2a corresponding to the reproduction scale m and a resonance point avoidance coefficient kl (=1) are read in, and practical moving speeds Vla (=kl.times.Ula=Ula) and V2a (=k1.times.U2a=U2a) of a holder 2 and a cylindrical drum 10 are determined with the above data. On the other hand, when the input reproduction scale m is equal to a value m2b which lies in another reproduction scale section m2, rated moving speeds Ulb and U2b corresponding to the reproduction scale m and a resonance point avoidance coefficient k2 (.noteq.1) are read in, and practical moving speeds Vlb (=k2.times.Ulb.noteq.U1b) and V2b (=k2.times.U2b.noteq.U2b) are determined with the above data.

Abstract: A recording apparatus for recording images of an object on a plurality of recording media records the object images on the recording media at different reduction factors. It also records an object image independently on each of the recording media.

Abstract: A mirror driving method, and device, for a photographic printer having a mirror diagonally movable into and out of a printing light path between a photographic film and a printing lens. The mirror is moved into the printing light path for reflecting light toward a photometric system of the photographic printer during light measurement before printing. During printing, the mirror is removed from the printing light path and is stopped at a rest position. When moving from the rest position into the printing light path, the mirror is controlled to move first at a high speed and then at a low speed. When the printer operation is interrupted for a period or terminated, the mirror is locked at a lock position which is removed from the printing light path.

Abstract: A copying apparatus is provided with a first scanning unit for scanning a first document to expose a photosensitive material and a second scanning unit for scanning a second document to expose the photosensitive material, and, at a position where the optical path of the scanning light of the first scanning unit and the optical path of the scanning light of the second scanning apparatus align with each other, a zoom lens is disposed to modify magnification. Consequently, a lens used exclusively for a high magnification becomes unnecessary.

Abstract: A control mechanism for an optical system wherein a scanning operation by an optical system is controlled by the amount and the direction of an electric current supplied to an optical system drive motor; and wherein a current limiter value modifying means for changing a current limiter value which stipulates a maximum current value for the optical system drive motor is provided which sets a smaller current limiter value during control of a return scan by the optical system than the current limiter value set during control of a forward scan by the optical system.

Abstract: A reader printer is disclosed which incorporates therein a scanning plane mirror for projecting an image in the form of a slit on a sensitive material. The sensitive material is shifted proportionately to the rotation of the scanning mirror so that the position at which the image is projected on the sensitive material will coincide with the scanning position of the sensitive material. As a result, the otherwise possible phenomenon of defocusing is precluded and the image is faithfully reproduced on a recording paper. The mechanism for rotating the scanning mirror and the mechanism for shifting the sensitive material are divided to allow production of a reader printer of a small size.

Abstract: An image forming apparatus employs a control means for controlling a driving means such that the current supplied to the driving means is varied between the interval from the end of the acceleration of a scanning means in the advancing direction to the start of the returning of the scanning means and the interval from the start of the returning of the scanning means to the end of the acceleration of the scanning means in the advancing direction. Due to the employment of this control means, a large torque is produced by a moving means for the scanning means during the interval from the start of the returning of the scanning means to the end of the acceleration of the scanning means in the advancing direction. Accordingly, vibrations are suppressed at the end of the returning movement of the scanning means.

Abstract: The disclosure relates to a card transporting device for use in a reader printer or the like. The card transporting device is capable of first transporting for transporting to a projecting position in the reader printer one after another a plurality of aperture cards accommodated in an accommodating portion of the card transporting device, second transporting for transporting one aperture card inserted into the card transport device through an insertion portion thereof, discharging the projected aperture card to either first or second discharge portions provided in the card transporting device, and third transporting for transporting to the projecting position the aperture card discharged in the first and second discharge portions.

Abstract: A copying machine which projects a light image from different documents placed at different places onto the same exposure section in the photosensitive material along the respective different optical axes, thereby facilitating the changeover of the documents with the initially set optical axes being kept.

Abstract: An image recording apparatus for recording an image on a photosensitive recording medium employs an elongated continuous form photosensitive recording medium capable of receiving a latent image of an output image to be formed, and a cut sheet type of a developer recording medium which produces an output image upon reaction with the latent image on the photosensitive recording medium.

Abstract: A copying apparatus comprising, an automatic document feeder (ADF) having a plurality of document feed units and a sorter for sorting copies to perform multijobs, in which the jobs held in respective document feed units are set in order of priority such that the urgent job is processed preferentially, and the desired job completion time is set so as to control the job to be completed till then even for the job having an inferior priority, thereby waste of waiting time can be saved remarkably at copying, and in the sorter, the job having an inferior priority is contained adjacent the final bin which is not used frequently corresponding to the necessary number of bins to facilitate smooth utilization of the sorter.

Abstract: An image forming apparatus has a copying device and automatic original document feeding device.The copying device includes a scanning position where an original document is scanned. The automatic original document feeding device automatically feeds a document to the scanning position. The feeding operation begins before the copying operation with respect to the previous document ends and the next document is fed to the scanning position with an interval distance therebetween after the copying operation with respect to the previous document.

Abstract: A writing system is usable in apparatus in which mirrors in a "V" configuration, split mirrors, a combining mirror and a camera mirror project images of opposite sides of a document in an imaging region to a microfilm in side-by-side relation. The writing system includes mirrors which project alpha or numeric character images from an LED display to the combining mirror to be projected to an otherwise unused portion of the microfilm. A compact folded path is provided having the same focal distance as that provided by the document image projecting mirrors.

Abstract: When preliminary scanning is started, a reference signal is generated from a reference position sensor and a moving amount of the scanner is measured by counting. Change in intensity of the reflected light from a platen is detected by a first sensor according to movement of the scanner. When the detected intensity attains reference intensity, the moving amount of the scanner is stored. When the detected intensity attains again the reference intensity after it has been lower than the reference intensity, the stored moving amount of the scanner is updated. The time in which the detected intensity attains the reference intensity is measured and when it attains a predetermined time, absence of the original is determined and the scanner stops and returns. The size of the original is determined based on the moving amount of the scanner stored at that time.

Abstract: A copying apparatus comprising a feeding unit which can be operated in a single manual feeding mode that a sheet of copying paper set manually is fed out and in a multiple manual feeding mode that a plurality of copying paper set manually is successively fed out sheet by sheet and a refeeding unit for feeding copying paper on each sheet of which an image is formed once to an image transfer portion again. The refeeding unit is controlled, when the single manual feeding mode is selected, to perform the refeeding operation each time an image has been formed on a sheet of copying paper fed from the feeding unit, and when the multiple manual feeding mode is selected, it is controlled to perform the refeeding operation after the completion of the successive feeding and image forming operation toward all the sheets set manually.

Abstract: The present invention relates to a copying machine so composed that copying paper can be continuously fed from the stock section regardless of the movemental timing of the resist section, which has been so improved that the paper feeding speed or the paper feeding interval of the copying paper can be controlled in response to the relative scanning time of the optical system for a document.

Abstract: An image forming apparatus includes a movable optical system for reading an original image, a motor for driving the optical system, a motor driving circuit, an encoder which outputs signals responsive to velocities of the motor, a control circut which controls the motor driving circuit such that the optical system starts from a home position and turns at a predetermined point to return again to the home position, and applies braking to the motor when the optical system is stopped at the home position, and a microcomputer for deciding timing to apply braking in response to an output of the encoder. By deciding brake timing in response to the output of the encoder, the optical system can be stopped accurately at the home position even when a moving load is abnormally increased due to stains on component members forming a running path for the optical system, or due to replacement of the optical system.

Abstract: A scanning-member-stop positioning device for the image forming apparatus, wherein a document in contact with a document glass plate is exposed due to the movement of a scanning member consisting of an optical section or a document glass plate, will execute a precise braking control in which a suitable degree of the brake power determined by the actual run to stop the scanning member just at the home position. Accordingly the present invention should be characterized about what the brake power, started at the timing of the passage over the fixed position against the scanning member running back toward the home position in the fixed velocity, is changed the degree, and about what the suitable degree of the brake power is determined by operation corresponding to the moving distances given as a result of the change.

Abstract: A master disk is positioned such that a radial portion thereof is within a restricted field having good imagery of an optical projection system. A second blank disk is positioned such that the image location extends along a radial portion thereof. As the two disks are rotated synchronously a pattern in an annular area is formed on the blank disk replicating the master. Good imagery of the pattern is obtained with a simple system having an image field less than the size of the object being reproduced.

Abstract: A camera includes a holder (1) for holding an original, an optical system (10) for optically scanning the original to form an image thereof, a mechanism (6) for moving the optical system and the holder with respect to each other, and a cylindrical drum (8) for conveying sensitized material (21) in synchronization with the mechanism (6) to record the image of the original on the sensitized material (21) in a continuous slitwise manner. The sensitized material (21) is conveyed while held by static electricity or vacuum attraction. The camera is capable of variable magnification.

Abstract: A compact mechanical linkage apparatus is disclosed to drive an optical scanning device underneath and parallel to a stationary transparent platen of a reproduction machine. The scanning device includes a carriage having an optical lens assembly. The carriage is adapted to move relative to the machine frame and on guide means for guiding the carriage along a path of travel parallel to the platen whereby successive incremental regions of the document or other object on the platen are scanned and the incremental light image formed by the scanning means are directed to the image receiving member. The carriage is driven along its scanning length by a multiple link mechanism having an input link adapted for full revolution at a constant speed and a one of its links slidably connected to the carriage for imparting thereto a straight line motion at constant speed.

Abstract: An image formation apparatus is operable in two different modes. The selection of a mode is made automatically, depending on the size of the document to be scanned. If the document is bulky like a book and is placed on a document table by opening an automatic document feeder or if it is or sheet-like but long and cannot be wrapped around a document winding cylinder, the optical system is moved to scan the document. If the document is sheet-like and sufficiently short, it is wrapped around the cylinder and is scanned by a stationary optical system while the cylinder is rotated.

Abstract: A reader-printer has a first mirror rotatable to a first position in which it is capable of forming a reader optical path for projecting an image light onto a screen and a second position in which it is capable of forming a printer optical path for projecting the image light onto a photosensitive surface, a second mirror disposed in the reader optical path for disposed in the reader optical path for directing the light from the first mirror to the screen, a third mirror disposed in the printer optical path for directing the light from the first mirror to the photosensitive surface, a driving device for rotating the first mirror to the first position and the second position, and a detecting device disposed outside the reader optical path and the printer optical path for receiving the reflected light from the first mirror during the rotation of the first mirror and detecting the image density.

Abstract: A scanning exposure device comprises a projection lens, a photosensitive member disposed beneath the projection lens, two movable mirrors disposed with their reflecting surfaces facing upward and having asymmetrical inclinations relative to each other, and a stationary mirror disposed with its reflecting surface facing downward to form an optical path together with the movable mirrors. The two movable mirrors are driven for scanning movements so as to expose a picture image from the projection lens on the photosensitive member through a slit. Thus, an optical path is established in which the light beam projected from the projection lens located at a higher position is guided toward the photosensitive member located at a lower position.

Abstract: An exposure device effects a slit exposure to a photosensitive sheet material moving over an exposure station, and includes two pairs of conveyor rollers disposed on opposite sides of the exposure station. The two pairs of conveyor rollers first convey a photosensitive sheet material forward, passing over the exposure station until one of the two pairs of conveyor rollers holds the trailing end of the photosensitive sheet flat therebetween. Prior to making an exposure, the two pairs of conveyor rollers are rotated in a reverse direction to move the photosensitive sheet back. After the trailing end of the photosensitive sheet is grabbed by the other of the two pairs of conveyor rollers, a shutter is actuated to effect an exposure to the photosensitive sheet with a slit line exposure light while the photosensitive sheet is being moved back, trailing end first.

Abstract: An electrophotographic copying machine includes a document mount portion, a document-winding drum, and a selection element. A book-like document can be copied when it is mounted on the document mount portion or a sheet-like copy document can be copied by being wound around the document drum by operation of the selection element. The document mount portion and the document drum are positioned within the range of movement of a common light scanning source so that the copy document provided on either the mount portion or the drum is optically scanned with the common light scanning source.

Abstract: A table start position selecting mechanism for an electrophotographic copying machine of the type with a movable table comprises a unistructural lamp unit with a lamp and a primary mirror for initially reflecting light from a document on the table. A table start position detection switch is attached to a supporting plate which is independent of the lamp unit and adjustable with respect thereto in the direction of motion of the table. A positioning device such as a pin is affixed to the lamp unit at the center of its optical axis such that the switch-supporting plate can be easily and accurately positioned with respect to the lamp unit in the direction of motion of the table.

Abstract: An image forming apparatus having a feed section being positioned at the front of the apparatus, a sheet discharging section being positioned above the feed section and a work table being attached to the front of the apparatus in a position above the sheet discharging section. The work table has a rotatable portion which is positioned above the feed section, and which is formed with an opening for taking out the sheet discharged from the discharging section. A support member is provided between the discharging section and the opening for supporting image-transferered sheets. When the rotatable portion is opened upwardly, the work table does not hinder the sheet supplementing work of the operator for the feed section.

Abstract: A flash exposure, full frame electrostatographic printing system is disclosed as having a document support drum and an optical arrangement for scanning a document for exposing the same to a moving photoreceptor belt. The optical arrangements for flash exposure and scanning have most of their respective parts in common. A mirror is incorporated into the optical arrangement for scanning and is movable into and out of the optical path thereof.

Abstract: In a reader-printer having a first optical device for directing a light from a projection lens to a screen and a second optical device for directing the light to a photosensitive medium, the first optical device includes a first mirror for reflecting the light from the projection lens, and the second optical device includes a second mirror movable toward and away from the reflection optical path of the first mirror and movable across the reflection optical path, and third mirror disposed outside the optical path of the first optical device and reflecting the light reflected by the second mirror toward the first mirror. The light reflected by the third mirror is again reflected by the first mirror and thereafter directed to a photosensitive surface.

Abstract: In an optical projection system in which the mismatching of multiple images and local variation in magnification on an image plane is compensated for, there are provided a compound eye system consisting of plural real image systems which project images of plural portions on an object plane onto the image plane, and deflecting members for deflecting luminous fluxes from the plural portions on the object plane.

Abstract: Disclosed is a projection device for projecting an image of an original on an object plane to an image plane for use in copying machines, facsimiles, image readers and the like. The projection device comprises a roof mirror and an optical member including a plurality of lens elements linearly aligned in the longitudinal direction of the slit. Each of the lens elements has a refractive surface and a reflective surface in facing relation with each other. At least one of said surfaces is toric in order to form an erecting real image in the longitudinal direction of the slit and an inverted real image in the lateral direction thereof.

Abstract: A slit-scanning type image exposing system for slit-exposing an original image to a photosensitive member which is being moved in a predetermined direction at constant speed, includes a lens and a light source which are moved in a first direction during exposure mode and in a second direction opposite to the first direction during returning mode. In one form of the present invention, an exposure control unit is provided in the region where the light path from the original image to the photosensitive member through the lens is virtually fixed in space. In another form, a shutter member is provided movably between the advanced position where the light path is blocked and the retracted position located away from the light path.

Abstract: An optical unit holding device for copying machines having a pair of stationary slide members attached to one end of a support frame proper which holds an optical unit reciprocating for document exposure, and another pair of slide members which is turnably attached to the other end of the support frame proper, thereby holding the support frame proper on a slider at four points by a manner that each pair of the slide members is supported on the slider, and further a driving wire is connected respectively to each end of the support frame proper.

Abstract: A copying machine having an optical system movable by a motor in a feed direction with a predetermined feed speed and in a return direction for returning the optical system to a predetermined home position. The optical system is returned with a first speed higher than the feed speed. A countercurrent braking of the motor is performed to decelerate the motor near its home position and the speed of the motor after this braking process is decelerated to such a speed that the optical system can be stopped correctly at the home position.

Abstract: A copying apparatus including an original scanning device such that relative positions of a leading edge of a copy paper sheet and a front end of an image to be copied are controlled in accordance with a time interval between a point of time at the start of scanning of the original scanning device and a point of time at the start of transport of the copy paper sheet. The copying apparatus further includes a device for reciprocating, in a mode for starting scanning of the original scanning device after the start of transport of the copy paper sheet, the original scanning device through a short distance at a low speed prior to the start of copying of the image onto the copy paper sheet so as to determine a start position of scanning of the original scanning device.

Abstract: An exposure apparatus for use in the manufacture of semiconductor devices, for transferring an integrated circuit pattern of a reticle onto a semiconductor wafer by use of a projection lens optical system. A portion of the pattern of the reticle is irradiated with a light beam, and the light beam is scanningly deflected so that the whole of the pattern of the reticle is scanned with the light beam, whereby the pattern of the reticle is transferred onto the wafer. For compensation of a curvature of field of the projection lens optical system, the wafer is displaced in the direction of an optical axis of the projection lens optical system in accordance with the position of scan, on the reticle, whereby a high resolving power is assured over the entire surface of the reticle pattern. This allows enlargement of the pattern area of the reticle.

Abstract: This invention relates to an electrophotographic copying machine of a type having a table which moves along a given direction and a source unit of a unitized structure which includes a lamp and a mirror for initially reflecting the reflected light from a document to be copied such that the position of the source unit can be adjusted at the time of its assembly. The copying machine according to the present invention includes a detector for detecting the starting position of the slidably movable table and this detector is attached to a plate of which the position is adjustable along the direction of motion of the table independently of the source unit whereby the problems associated with fluctuations in the start-up distance traveled by the table before acquiring a steady speed can be eliminated.

Abstract: The disclosure is directed to an image formation apparatus for producing both mirror images and normal images. The apparatus comprises an image inverting prism positionable selectively in an optical path of an image transmission device or outside thereof. The prism is so shaped as to give the same optical path length when positioned in the optical path and when positioned otherwise.

Abstract: A scanning system is provided for sequentially scanning both sides of a duplex document and projecting images onto a light sensitive linear array. In a first configuration, the platen and scan/illumination stations are fixed and the document is moved across the platen in a scan and reverse scan direction. The scan/illumination stations are sequentially energized and images of both sides of the document are directed along separate optical paths until they are redirected by a movable mirror assembly into a common lens. In a second configuration, both sides of a duplex document are sequentially scanned by movable scan/illumination stations and directed into a common lens which sequentially projects the document images onto the linear array.

Abstract: A chain drive arrangement is disclosed for movably driving an exposure carriage of a photocopying machine. The chain drive includes an endless chain running over two spaced apart chain gears. A carrying pin is arranged on the chain which engages into a connecting link slot transversely to the travel direction of the chain. The connecting link slot is arranged at a carrying lever of the exposure carriage. In order to accommodate movement of the exposure carriage to an intermediate or neutral position so it can be removed independently of the position in which the driving mechanism is stopped, a readily manually detachable connection is provided between the carrying pin and the carrying lever. A leaf spring hingedly connects the carrying lever to the exposure carriage and biases the lever to a connection with the carrying pin.