Abstract: A wiring device between a movable member and an immovable member includes an elongated wiring having one of its ends fixed to the movable member and the other of its ends fixed to the immovable member. The wiring has an intermediate generally C-shaped portion and two end portions extending from the C-shaped portion, the C-shaped portion progressively changing its position as one of the end portions elongates and the other end portion shortens as the movable member moves relative to the immovable member. An elongate support has one of its ends fixed to the movable member and the other of its ends fixed to the immovable member, the support having an intermediate generally C-shaped part and two ends parts extending from the C-shaped part, the C-shaped part progressively changing its position as one of the end parts elongates and the other end part shortens as the movable part moves relative to the immovable part. One of the end portions of the wire is generally horizontally disposed.

Abstract: An automatic original sheet feeder for automatically feeding an original sheet to the central portion of a platen of an image reading apparatus is disclosed, in which the orignal sheet on an original sheet tray is supplied to the platen by a feeding device. The length of the original sheet is detected by a control unit. The required distance for the original sheet to be fed is calculated depending upon the distance from a predetermined position and the central portion of the platen and the length of the original sheet. The feeding device sends the original sheet to the platen by the calculated distance, and the central portion of the original sheet is made to coincide with the central portion of the platen.

Abstract: An image recording apparatus selects one of a plurality of recording sheets and conveys it to an image recording unit and image recording is effected on the selected recording sheet, having first recording sheet detecting means for detecting the presence of the recording sheets at a first predetermined position on the conveyance path of the recording sheets upstream of the recording unit, second recording sheet detecting means for detecting the presence of the recording sheets at a second predetermined position on the conveyance path of the recording sheets downstream of the recording unit, and control means for conveying only one recording sheet to the recording unit and conveying the leading end edge of the other recording sheet to a recording standby position upstream of the recording unit in conformity with the result of detection by the first and second detecting means.

Abstract: A fixed aperture, compact camera for photographically copying a selected portion of an illuminated image is provided with an exposure control system that includes a scanning, graded-index microlens array and a pair of superposed light polarizing elements interposed between the selected illuminated image portion and the microlens array with a light transmission axis of one light polarizing element being rotatable with respect to a light transmission axis of the other light polarizing element. In operation a camera operator manually sets the angle between these two transmission axes prior to exposure, in accordance with his subjective determination of image-illumination intensity and therefor the light intensity of the image portion available for transmission to a camera focal plane, during exposure.

Abstract: A sheet finisher with a binder includes sheet stacker for stacking sheets discharged after images are formed thereon, a binder for binding the sheets stacked on the sheet stacker, a counter for counting a number of sheets accommodated in the sheet stacker, manual selector for starting binding operation of the binder, and a controller for discriminating whether or not the number counted by the counter is within a predetermined range, and for permitting operation of the binder by actuation of the manual selector, when the number is within the predetermined range.

Abstract: A copying system with a large document feeder for making large copy sheet (or web) media copies by moving the document past an optical scanning slit at a preset speed proportional to the speed of the imaging surface, and transferring the image onto a selected large copy media, with an easily correctable image size. The disclosed system provides for accurately controlling and adjusting the size of the copy image relative to the document image, by controlled adjustment of the magnification or reduction without requiring anamorphic or other lens changes.

Abstract: A copying apparatus operable with an original having an image-bearing surface on which images to be reproduced are supported. A radiation reflected by the image bearing surface is focused on a photosensitive paper, by a self-focusing lens array, so that latent images corresponding to the images on the image-bearing surface are formed on the photosensitive paper. The latent images are developed into visible images by a developing device such as a device adapted to apply a pressure to the photosensitive paper. The photosensitive paper may be a self-activated type having a photosensitive material and a developer material which chemically react with each other in the developing process. Alternatively, a separate developer paper having a developer material is superposed on a photosensitive paper having only a photosensitive material.

Abstract: Hand held compact apparatus, e.g. a camera, for photographically copying a portion of an illuminated image includes a member that enables a camera operator to accurately frame and/or preview a portion of the image prior to its exposure, a portion that becomes blocked from view when the camera is placed in its exposure position. In operation a camera operator places the framing and/or previewing member in direct contact with a selected portion of a backlighted film transparency, prior to its exposure. When framing and/or previewing is complete, the operator rotates the pivotally attached camera into its image copying or exposure position. An opening through the framing and/or previewing member and an opening in the camera housing through which the image must pass for image copying purposes become mechanically aligned with one another when the camera is rotated into its exposure position, thereby enabling an accurately framed photograph of the selected transparency portion to result.

Abstract: A recording medium comprises a recording layer formed on a substrate. The recording layer comprises a solid solution of a guest compound in a matrix polymer. The guest compound, such as a para-di-substituted benzene derivative, has a substantial second order micro-nonlinear optical constant .beta. but shows substantially no nonlinear optical effect in its crystalline form. The matrix polymer is preferably a polyoxyalkylene. A part of the recording layer is caused to have a nonlinear optical effect when it is supplied with a combination of an external field such as an electric or magnetic field and heating followed by cooling for solidification, and is caused to lose its nonlinear optical effect when it is subjected to heating followed by cooling for solidification in the absence of such an external field.

Abstract: A method of controlling transport of a photoreceptive sheet, including the steps of: feeding the photoreceptive sheet from a roll of the photoreceptive sheet to an exposure position subjecting the photoreceptive sheet to image forming exposure and transporting the exposed photoreceptive sheet to a buffer region; transporting the photoreceptive sheet disposed at the buffer region to an image forming position; and feeding the photoreceptive sheet disposed between the exposure position to the image forming position and the image forming position.

Abstract: A method of specifying each of the frame numbers of image frames of an elongated photographic film when the film is fed to be positioned in a printing position at which the film is to be subjected to printing. Position specifying areas are set at even intervals in the longitudinal direction of the film in such a manner as to include in the areas frame numbers. The frame number within one of the position specifying areas is specified as the frame number of one of the image frames if the center of the one image frame is present in the one position specifying area. Non-specifying areas which are in the vicinity of the boundaries of the position specifying areas but which do not belong to any of the frame numbers are also set. If the center of one of the image frames is present in one of the non-specifying areas, the number of this image is specified by referring to the frame numbers of the image frames ahead of and behind that one image frame.

Abstract: A high speed aperture card printer and method include a rotatable glass cylinder temporarily to transport aperture cards fed one directly after the other onto the cylinder. The aperture cards are tightly held against the cylinder by parallel endless belts positioned on either side of the microfilm carried by the aperture card so as to leave one surface of the microfilm uncovered. The printer includes an optics system passing light radially outwardly through the rotating glass cylinder and the microfilm transported thereby optically to scan images on the microfilm for printing copies thereof on plain paper.

Abstract: A multiple-exposure apparatus in a graphic arts copying machine of a slit-exposure type includes an original holding member mounted for horizontal reciprocating motion. An optical exposure system exposes an optical image of a slitwise segment of the original onto a photosensitive material. A moving device reciprocates the holding member and conveys the photosensitive material relative to the optical system. The moving device is adapted to synchronize the advance of the original holding member and the conveyance of the photosensitive material. A data setting device is provided for setting predetermined data concerning a predetermined multiple-exposure layout mode of the original onto the photosensitive material. A control unit controls the operation of the optical exposure system by enabling and disabling the exposure by the optical system and also synchronizes the moving device in an associated relationship as a function of the predetermined set data.

Abstract: A servo controlled film drive for an automatic microfilm camera wherein the rotation of the metering roller of the film drive is electroncially synchronized to the rotation of the drive rollers of the document transport. The film drive is powered by a DC motor, while the document transport is powered by an AC motor (main drive motor). The variable speed film drive is computer programmable and uses phase-locked loop control circuits and optical incremental shaft encoders to maintain precise synchronization between the metering roller and the drive rollers at a predetermined ratio. The angular motion of the metering roller relative to the angular motion of the drive rollers is directly proportional to the linear velocity of the film relative to the linear velocity of the document in the transport. This relationship is directly proportional to the reduction ratio of the microfilm camera.

Abstract: An image recording apparatus has a jamming detecting and displaying device in which jamming detecting means detect the jamming of an image recording material in the apparatus, and jamming displaying means displays the position of the jamming and tells a procedure of eliminating the jamming which is provided by control means, so that the jamming can be readily eliminated.

Abstract: A copying machine including a light exposure device having a stationary light source for illuminating an original to be copied and adapted to form an electrostatic latent image on a photo-sensitive member through exposure by said light exposure device. A copying machine provided with a first insertion port and a transfer means adapted to feed an original to be copied from the first insertion port to the discharge position through the light exposure position so as to transfer an original to be copied, a second insertion port for inserting an original to be copied from the direction different from the first insertion port and a second transfer means adapted to reverse the feeding direction and the surface of the original to be copied from said second insertion port and feed the same to the exposure position.

Abstract: A method and apparatus for identifying negatives in photographic laboratories, characterized in that in the finishing station (1), after a tab (5) has been applied to the continuous strip of negatives (7) but before inserting the tabbed strip cut into portions into its envelope, order identification data are printed on the tab in synchronism with the cutting operation.

Abstract: An image forming apparatus for forming an image of an original using an optical image of the original has: a first assembly; a second assembly cooperable with the first assembly the second assembly being movable relative to the first assembly; between a closed position wherein the apparatus is operable and an open position wherein the apparatus is opened; a reciprocable original supporting member for supporting an original; an optical system, in the second assembly, for forming the image of the original supported on the original supporting member; a second guiding member, on the second assembly, for guiding and positioning the original supporting member adjacent one of the sides of the original support member, wherein the original supporting member is movable to be disengaged from the second guiding member, the second guiding member being contactable with the original supporting member to correctly position the original supporting member with respect to the second assembly when it is engaged with the original

Abstract: An image forming apparatus includes sheet accommodating cassette for accommodating sheets, a device for forming images on the sheets, a first sheet conveying passage for conveying the sheet to the image forming device from the sheet accommodating cassette, a conveyor for accommodating a bundle of sheets having been subjected to an image forming operation by the image forming means at first sides thereof in a form in which leading edges of the sheets are gradually deviated in a sheet advancement direction, and for conveying the bundle as a whole, a feeder, disposed downstream of the conveyor with respect to the sheet advancement direction, for feeding one by one the sheets of the bundle from the sheet closest to the feeder, a second sheet conveying passage merging into the first passage for refeeding to the image forming device the sheets fed by the feeder, and a confining device for confining the sheets of the bundle other than the sheet being fed by the feeder.

Abstract: A copying apparatus operable with an original having an image-bearing surface on which images to be reproduced are supported. A radiation reflected by the image bearing surface is focused on a photosensitive paper, by a self-focusing lens array, so that latent images corresponding to the images on the image-bearing surface are formed on the photosensitive paper. The latent images are developed into visible images by a developing device such as a device adapted to apply a pressure to the photosensitive paper. The photosensitive paper may be a self-activated type having a photosensitive material and a developer material which chemically react with each other in the developing process. Alternatively, a separate developer paper having a developer material is superposed on a photosensitive paper having only a photosensitive material.

Abstract: An image forming apparatus having first body portion and a second body portion that swings into and out from the first body portion and a rack and pinion drive arrangement mounted on the first body portion for driving a carriage over an optical system on the second body portion when it is swung into the first body portion. The rack and pinion are disengaged when the carriage is moved away from the optical system to allow the second body portion to swing out from first body portion; and the rack and pinion have a flexible flange or specially shaped teeth to provide proper positioning of the pinion for smooth reengagement.

Abstract: A sheet refeeding apparatus for use in combination with a multipurpose image forming system capable of multistage copying operation. The sheet refeeding apparatus has a secondary sheet conveying mechanism forming a secondary sheet conveying path extending from the sheet discharge section to the sheet feed section of the image forming system, and includes variable speed driving means for regulating the operating speed of the secondary sheet conveying mechanism, memory means storing a plurality of control data for controlling the variable speed driving means, and selecting means for selecting control data for controlling the variable speed driving means so that the secondary sheet conveying means operates synchronously with the sheet conveying mechanism of the image forming system among those stored in the memory means.

Abstract: A microfilm aperture and handling machine has punched card reading and punching means, single means capable of both scanning and plotting microfilm images, a photographic developer station for developing plotted images, and control means enabling selective operation to read existing data carried by a card or to create data on a previously blank card. The machine integrates functions normally found only in separate machines. The single scanner/plotter means scans a microfilm image from the central axis of a cylindrical platen. The developer station injects chemicals into a chamber of which the microfilm emulsion area forms one wall by peripheral clamping.

Abstract: A document imaging system incorporates a mechanism for adjusting the speed ratio between the document scanning system and the photoreceptor. A timing belt is connected between an adjustable tapered portion of a drive pulley mounted on the photoreceptor drive shaft and the document scanning system. The portion of the tapered surface on which the belt is frictionally is axially adjustable resulting in a change in the effective diameter of the belt and a change in the scanning speed.

Abstract: When originals with their image to be scanned are placed in an original-feeding tray, this placement is sensed by an original placing sensor. In accordance with this result of sensing, a CPU controls drivers to automatically separate the originals placed in the tray. In the meantime, several predetermined input settings can be made. Therefore, when an image scan start instruction is provided, the CPU, without thereafter separating the originals, permits the originals to be immediately sent and scanned.

Abstract: A scanning arrangement for supporting a device for scanning movement across a field, having a carriage supported for scanning movement through two parallel and co-planar U-shaped channels, each channel having upper and lower bearing surfaces, and an open side facing the opposite channel. The carriage is supported on a tri-roll bearing, including a rigid driver roll drivingly coupled to the axle member and in driving engagement with one of the bearing surfaces, and two rigid idler rollers, each in driven engagement with the driver roll and the other bearing surface, and maintained in non-contacting relationship, while provided with a spring force biasing the idler rolls toward one another.

Abstract: A document presser plate and an automatic document feeder are disposed on a document support table which places a document to be copied thereon. A common driver gear is disposed in a copying machine mechanism for selectively reciprocally moving the document support table and actuating the automatic document feeder. A document on the document support table and a document in the automatic document feeder are exposed to light via a single exposure optical system in the copying machine mechanism.

Abstract: A photographic printing apparatus comprising a carrier section for positioning the image frame of an original negative film strip to print said image frame, a transporter for transporting said original negative film strip, an optical detector for obtaining image information of the image frame at the carrier section, a cutter for cutting the original negative film strip into several pieces each of which has a predetermined number of frames, means for inserting each of the several pieces into a negative carrier sleeve, and a controller for controlling the transporter, the cutter and the inserting means in accordance with the image formation detected by the image information detector at the printing section. Thereby, a plurality of original negative film strips can be continuously and automatically printed without connecting and separating the original negative film strip. Furthermore, each of the serveral pieces can be continuously and automatically inserted into the negative carrier sleeves.

Abstract: A photographic print set and method for producing the same. The set comprises a web-like print sheet having a row of picture images. The picture images are printed with equal spaces therebetween on a web-like printing paper from a roll of negative film. The print sheet has perforated lines extending lengthwise of the spaces, which allow the print sheet not only to be alternately oppositely folded thereon so as to provide a coherent folded print set but also to be cut or torn apart therealong so as to provide a set of separate prints.

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: In a copier with a moving platen document imaging system, wherein the platen is a part of a moving platen unit reciprocally driven relative to the stationary body of the copier, with a document on, and moving with, the platen being imaged by the copier in an imaging movement of the moving platen unit, the improvement including an automatic document feeder for automatically feeding documents on to and off of the platen solely utilizing the reciprocal movement of the moving platen unit, including a document feeding system mounted to the moving platen unit for reciprocal movement therewith but rotatable relative to the platen for movement of documents relative to the platen, and a motion converting system for mechanically converting the reciprocal motion of the moving plate unit in at least one direction of movement thereof into appropriate intermittent rotation of the document feeding system for intermittently rotatably driving the document feeding system at a document feeding velocity substantially different f

Abstract: An image reading apparatus for reading an image of an original and converting it into an electrical signal, and particularly for reading the image by primary-scanning and secondary-scanning the image by a one-dimensional image sensor. This apparatus has one or two one-dimensional image sensors and is constructed such that the image reading state (for reading by the image sensors) differs when the image is placed in a vertically facing posture at an illuminating position compared to when the image is placed in a horizontally facing posture at the illuminating position, and can properly read the image and reproduce the same when the image is placed in any of these postures.

Abstract: This specification discloses an automatic original feeding device for automatically feeding an original to an optical processing station in an image forming apparatus body. The automatic original feeding device is characterized by original feeding means having a guide for guiding the original to the optical processing station, conveying means for conveying the original guided by the guide to the optical processing station, and drive transmitting means for driving the conveying means by movement of the original carriage of the image forming apparatus, and change-over means for selectively restraining the original feeding means with respect to the image forming apparatus body or the original carriage. The specification also discloses an image forming apparatus provided with such automatic original feeding device.

Abstract: In a photo printer, a web of photosensitive material is transported in proportion to a magnification ratio to a focusing plane movable along an optical axis, the web is exposed to a photo image, and the exposed web is then fed out. The printer includes a first magazine to load the web of the photosensitive material in a rolled form and to feed the web over a desired length, moving roller means for transporting the web along a path curved downwardly in a U-shape, exposure frame means composed in combination of a press pan and a mask frame and movable along the optical axis, nipping roller means provided in a pair on each of the front and rear sides of the exposure frame means and cooperated to transport the web along the focusing plane, exhaust feeding means for feeding out the exposed web, and a second magazine for receiving the exposed web from the exhaust feeding means.

Abstract: A draft-transfer format for an electronic photocopying machine that reciprocates a draft-setter holding a draft sheet at a designated position and projects a picture of the draft document onto a photosensitive member. A conveying mechanism is installed above the draft-setter which conveys the inserted draft sheet to the predetermined position on the draft-setter. A drive force transmission mechanism is provided for transmitting a drive force to the conveying mechanism. A first drive mechanism is provided inside the photocopying machine which transmits the drive force to the drive force transmission mechanism during copying and a second drive mechanism is provided for transmitting the drive force to the drive force transmission mechanism during the return movement of the draft-setter after completing the draft-scanning operation.

Abstract: For use in photographic package printing, selected negatives are cut from the film rolls and mounted in individual paper negative carriers, imprinted with bar-coded order details. A novel reader-feeder reads the bar-coded order on each of the carrier and stores the order in the memory of its microprocessor. When photoprinting of a prior order has been completed, the reader-feeder withdraws the prior negative carrier, feeds the newly-read negative carrier to the package printer, and inputs its stored order to a conventional printer-controller, which directs the photoprinter in the same manner as if an operator was key-inputting the order into the printer-controller.The paper negative carriers are supplied in manifold form, for computerized imprinting. These consist of die-cut front sheets having an adhesive backing on a waxed manifold web. Aligned rectangular cut-outs, the larger of which is in the web, provide an adherent mounting frame when the cut-out portions are removed.

Abstract: A photographic printer of the type wherein a web of photographic material is advanced to and from an exposure station and wherein individual exposure areas of the photographic material are selectively marked by a thermal marking system. The thermal marking system of the present invention includes a thermally activated marking tape and a thermal print head which selectively applies thermal energy to portions of the tape. A frictional engagement between the photographic material and tape results in a movement of the tape with the photographic media when the media is driven through the printer. In a preferred embodiment, the friction between the tape and media is selectively established by intermittently establishing an intimate contact between them.

Abstract: A slit exposure projection device having a projection optical system and/or an aperture stop designed such that the pupil of the projection optical system in the longitudinal direction of the slit is large relative to the pupil in the lateral direction of the slit.

Abstract: A method for sorting slide films stored in a magazine. One slide film has a mount made of a rigid material such as thick paper, and an exposed film or a picture image is mounted on the mount. In a sequence of operations to take out a film slide from a magazine storing a plurality of slides, transport the same for a predetermined treatment and transport again to another place for storing the same in a different magazine or a bucket, a dummy slide which can be easily discerned is inserted for every group of slides sorted according to an arbitrary classification, for example by clients or by subjects, to thereby facilitate a sorting operation.

Abstract: An original transfer apparatus used in an image-forming apparatus for forming an image in accordance with image information from an original set on an original table, whereby the original is transferred to the original table, is provided with a housing which is removably attached to the image-forming apparatus. The housing contains therein a transfer mechanism for swallowing and transferring the original to the original table. A drive source for driving the transfer mechanism is integrally provided in the housing. Since the drive source is contained in the housing, the original transfer apparatus can be mounted on the image-forming apparatus with ease.

Abstract: A feed member is selectively driven and brought into contact with an image forming medium so as to feed the image forming medium stored in a storage section in a direction toward an image forming section. A drive mechanism selectively applies a force to the feed member so that the feed member is brought into contact with the medium so as to feed the medium. A controlling means supplies a first control signal to the drive mechanism in response to a medium feed instruction signal. The medium can be sufficiently fed in accordance with the first control signal. The controlling means also supplies a second control signal to the drive mechanism in response to an error processing instruction signal when an error occurs. The feed member is separated from the medium in accordance with the second control signal.

Abstract: The invention disclosed relates to a copying machine to which an automatic document feeder is attachable. A control apparatus therefor according to the present invention operates in the following control modes: When a document is placed on a document support table at the time a print key is depressed, a copying cycle is started without operating an automatic document feeder. When there is no document on the document support table and a document is set in the ADF, the ADF is operated to start a copying cycle in an ADF mode. When no document is placed on the document support table and no document is set in the ADF, no copying cycle is commenced.

Abstract: A plurality of optical systems are disposed on a rotating plate in order to cope with a change in magnification during a printing operation. The optical systems are successively moved to a printing light axis by means of the rotation of the rotating plate. In order to ensure the movement of the optical systems, light receivers are separately disposed inside and outside the rotational locus of the optical systems. Thus, it is possible to carry out an operation for changing the optical systems without any interference.

Abstract: A photographic printing apparatus is capable of effecting printing on photographic paper from various types of negative film including a negative film of continuous length by replacing a negative film carrier with another. When the negative film carrier is at its printing position, a light receiver opposes the printing light axis, and only an optical system is moved vertically to cope with a change in magnification during a printing operation. At the time of retraction of the negative film carrier, the light receiver is raised together with the optical system, thereby facilitating the replacement of the negative film carrier.

Abstract: An automatic original handling apparatus provided with an original supporting mechanism for supporting an original thereon and a mechanism for determining image forming conditions for said original and adapted for performing an image forming operation on said original according to thus determined image forming conditions, said apparatus featured in being capable of interrupting the image forming operation on said original and performing an image forming operation on an another original.

Abstract: The microfilm camera is designated for filming punch cards. It is comprised of a camera box containing the exposing and processing facilities, said box being vertically adjustable with respect to the table for receiving the originals arranged beneath said box, and of punch card conveying elements and at least one lateral card-discharging slot and a punch card collected disposed following said slot.A punch card reversing facility is arranged upstream of the collector in order to deliver the punch cards to the collector not only in the correct sequence, but also with their inscribed surfaces facing down. Camera boxes with ejection of the punch cards at both sides are provided with a transverse conveyor conveying the punch cards alternately from the one and other side to a central collector, said punch cards arriving in said central collector with their sides reversed.

Abstract: A side printing apparatus for providing on a continuously moving film latent images of characters, numerals, symbols and the like which are later photographically developed. The light image forming arrangement is deenergized so as to prevent the provision of such light images at least during the movement of the film in a reverse direction for preventing double exposure of the film. The deenergization of the light image forming arrangement is caused by a direction discriminator for discriminating the movement of the film in the forward and reverse directions in conformity with two series of pulse signals with a phase difference of 90.degree. therebetween from a rotary encoder rotating in synchronism with the movement of the film.

Abstract: An exposure table (20) included in an apparatus for handling sheets for microfilming or other similar recording is provided with slots (28) open through the table surface (27) facing the camera (14). Sheet drivers (22) run in these slots for feeding a sheet stepwise to the exposure table, said drivers being fastened to conveyor belts (21) running in channels (26) below the table surface (27). The conveyor belts have preferably a feed direction that forms a small angle (v.sub.1) with a guide ledge (23) along one table edge extending in the conveyor direction. Moreover, the exposure table is preferably provided with means (29, 30) for sucking by vacuum each sheet firm on the exposure table surface.

Abstract: This specification discloses a reading apparatus having a staggeredly arranged compound-eye optical system for divisionally forming the image of an original with respect to individual ones of a plurality of image pick-up elements juxtaposed in the primary scanning direction of the original. The compound-eye optical system comprises a plurality of lens blocks arranged in a row corresponding to said primary scanning direction, each of the lens blocks being formed with a plurality of staggeredly arranged effective plastic lens portions and a protective portion provided around and formed integrally with the effective lens portions. The boundary surface of adjacent ones of the lens blocks is inclined with respect to a plane perpendicular to the arrangement direction of the blocks so that the distance between the effective plastic lens portions and the boundary surface is greater.

Abstract: In an automatic document handling system for recirculating a set of document sheets seriatim in a page order to and from the imaging station of a copier for making precollated copy sheet sets, wherein the document handling system has a control system and two document trays, the improvement for higher speed document recirculation for copying on a copier having a high copying rate comprising: an automatic document sheet separating system controlled by said control means for automatically, during the first circulation of the set of document sheets, separating the set of document sheets into two half-sets of alternate page document sheets, odd and even, and restacking the half-sets respectively in the two document trays, and an automatic alternate document sheet cooperative feeding system actuated automatically by the control means on the second and subsequent copying circulations of the document set to feed document sheets alternately and overlapping in time from the two document sheet half-sets in the two docum