Abstract: An apparatus for enlarging and printing panoramic photographs includes a light source and a negative shuttle having upper and lower parallel plates for securing and enclosing entirely a negative placed therebetween. Interposed between the light source and the negative shuttle is a focusing device for concentrating light emanating from the light source. The three above-described elements are operative to project an image from a negative secured in the negative shuttle in a direction opposite the light source. A lens is supported in an adjustable lens support for magnifying and focusing the image projected from the negative shuttle. Photosensitive material is supported on a supply spool, the photosensitive material being passed to a take-up spool adapted to receive the photosensitive material. A photosensitive material is supported in substantially parallel relation to the negative shuttle and is exposed to the image projected through the lens.

Abstract: An imager apparatus for exposing a film with a plurality of recorded images separated by border areas includes an exposure site, a primary film path along which unexposed films are fed to the exposure site, a secondary film path along which exposed films are taken away from the exposure site, and a film driver at the exposure site. The film driver drives films between the primary and the secondary film paths. The film support for holding the film at the exposure site during exposure includes at least one rod on which the film rests. The rod contacts the film at only the border areas.

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: An apparatus for driving a scanning gate of a photographic film scanning apparatus utilizes a reversible m s , stepping motor, and a system driven by the motor for moving the gate in a pendulum-like manner. The means comprises a shaft, a gear sector fixedly connected on the shaft and a crank arm fixedly connected on the shaft so as to operatively engage the scanning gate, and a worm configured to be driven by the motor. A biasing device is arranged between the gear sector and a chassis of the scanning apparatus to maintain a positive engagement between the worm and the gear sector. Additional biasing devices are connected between the crank arm and the gate to provide for adjustment of the gate about two axes.

Abstract: Tractor drives of a high speed printer move a length of continuous-form paper longitudinally up from a box of fanfold stacked paper, through a print mechanism, across paper directing means, and downward to refold onto a fanfold stack. A misfold detector is positioned at the paper directing means to sense the jumble of paper caused by misfolding prior to jamming of paper movement through the tractor drive to prevent damage to the paper, complex restarting procedures, or data loss.

Abstract: The present invention provides an improved device for transporting photographic negatives mounted on carrying cards to the optical stage of a photographic printer. A storage bin houses a plurality of the carrying cards prior to being transported to the optical stage of the printer. A first vacuum member releasably engages one of the carrying cards and transports that carrying card to a predetermined intermediate location. A second vacuum member operates to transport the carrying card between the intermediate position and the optical stage of the photographic printer. A third vacuum member operates to transport the carrying card from the predetermined intermediate position to a discharge bin. A secondary carrying card transport assembly is adapted to transport at least one carrying card having a secondary photographic negative mounted thereon to the same predetermined location to simultaneously transport multiple negatives to the optical stage of the printer.

Abstract: A duplicating camera, especially, a diffusion transfer type duplicating camera including an exposure box in which a scanner for scanning across the surface of an original in the form of a slit is incorporated and a transfer box in which a sheet of photosensitive material is exposed to light so that a set of slit images from the exposure box can be formed on the photosensitive material, and in which the image recorded on the photosensitive material is transferred to an image receiving material. These exposure and transfer boxes are arranged in an adjustable manner so that the scan axis of the scanning unit can be aligned with the transfer axis of the photosensitive material. In the exposure stage, an exposure table on which the photosensitive material is transferred is positioned above conveyor rollers disposed on both sides of the exposure table, so that a nominal rise occurs in the photosensitive material traveling above the exposure table.

Abstract: A price printer for printing prices relative to photographic processing, which is suitable for a printer-processor for printing image recorded on photographic films onto photographic papers. The price printer is disposed in a position where each image printed on the photographic paper is detected. The number of defective prints selected by detection is input by an operator. The number of the defective prints is subtracted from the total number of prints which is automatically input from the printer-processor to calculate the number of prints to be delivered to a customer and compute a print price to be printed. Therefore, a proper statement of delivery can be made at a time and the efficiency of work can be improved. A photographic-film carrier capable of automatically detecting information about the length of a processed photographic film can be provided. The price printer can read the length information so as to determine the kind of the photographic film and automatically set and print a development price.

Abstract: This specification discloses a method of and an apparatus for manufacturing a disc medium which utilize the projection exposure technique of a stopper for lithography, rotate a circular photosensitive substrate which provides the disc medium at the same speed as a circular reticle having a pattern of information tracks while rotating the reticle, and irradiate the reticle with illuminating light of a slit-like shape or a sectoral shape extending in the diametrical direction of the circular reticle to thereby effect rotation scan exposure.

Abstract: In a photographic copying apparatus for processing exposed photographic film there are recorded in a measuring station, in addition to measurement data relating to the color composition of the negative, also splice events and perforation events and their occurrence on the film. The recorded data are fed to a calculating and evaluation unit and there stored in the form of a table (event table). The occurrence of splice events and perforation events on the film is recorded in one or more repositioning processing stations. Those data are stored in the calculating and evaluation unit in the form of a table (position table). In order to reposition the film in each processing station, the tables are correlated and any deviations established are taken into account when the film is repositioned. In order to detect the perforation and splice events, the measuring station (7) and the processing stations (8, 9) are equipped with perforation- and splice-detectors (72, 73 and 82, 83 and 92, 93, respectively).

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: An image frame detecting apparatus of the present invention is provided with a light emitting portion provided in one of the respective sides of a guide path for a carrying photographic film, and including a light emitting diode (LED) array having a plurality of LEDs disposed in the transverse direction of the photographic film, a light receiving portion provided in the other of the respective sides of the guide path for the photographic film, and receiving light emitted from the light emitting portion, and a detecting portion for detecting an image frame recorded on the photographic film depending upon the quantity of light received by the light receiving portion. The LEDs has a reduced fluctuation and a reduced range of temperature change so that transmission density of the photographic film can be accurately detected. An image frame and a base portion of the photographic film can be surely discriminated.

Abstract: Successive exposed photographic films are connected, either individually or in groups of two or more, to discrete sheet-like leaders which are transported along an elongated first path extending through the baths and the dryer of a developing unit. The leaders are separated from the respective webs downstream of the developing unit but upstream of a copying unit for developed films, and the separated leaders are directed into a second path to be gathered in a receptacle. The separation involves severing the leading end of each web close behind the respective leader, and the thus separated webs are caused to continue to advance along the first path through a magazine and thence into the copying unit.

Abstract: An image reader is capable of improving the quality of reading a transmission manuscript and of reducing a cost for a luminaire power source compared with the conventional image reader.

Abstract: A photographic copier includes a rod lens array held to a carrier and moved parallel to an original picture by a motor. Limit switches sense whether the array is in either stop position at both ends of the range of movement During movement, if the array is found to reach either stop position, then a control circuit stops the operation of the motor. When the rod lens array is started, if the limit switches sense that the rod lens array is not in either stop position, then the control circuit operates the motor to return the array to either stop position.

Abstract: A photosensitive material for managing condition according to the present invention is provided with a data recording portion on which condition managing data is recorded. Therefore, it becomes possible to readily make the photosensitive material and this condition managing data correspond. In addition, an apparatus for processing the photosensitive material includes a photometric unit for photometrically measuring the image of the photosensitive material, a read unit for reading data on the data recording portion and a managing unit for conducting a condition management with the photometric value and the read data. In consequence, the condition management becomes easy.

Abstract: An exposing apparatus for exposing the periphery portion of a substrate on which resist is uniformly applied while rotating the substrate by a rotating device around a substantially central portion of the substrate, comprising: an irradiating device capable of irradiating a light beam, which is not sensed by the resist, toward the periphery portion of the resist; a light receiving device disposed to confront the irradiating device, receiving the light beam and outputting a light receipt signal in accordance with the quantity of received light; a detection device for detecting the rotational angle of the resist and outputting an angular signal; a moving device for relatively moving the light beam irradiated and the substrate in a radial direction; and a control device, wherein the substrate is disposed between the irradiating device and the light receiving device so as to shield a portion of the light beam and a control device controls the moving device in accordance with the light receipt signal and the angul

Abstract: An electric stapler is disposed at the bottom of a tray on which printed sheets are stacked, and is movable along the bottom of the tray. Printed sheets are aligned on the tray along a reference line. The stapler moves along the bottom of the tray and stops at determined points to staple the aligned sheets. A control section is stored with data about the number and location of stapling points proper for each sheet size. The size of printed sheets to be stapled is detected, and the movement of the stapler is controlled so that the stapler can staple at proper points for the detected sheet size.

Abstract: An image forming apparatus having a document transporting mechanism which transports documents one by one from a document feed tray, to the exposure location on a platen and which prefeeds the next document to a position before the platen, and a control mechanism which in response to an instruction of stopping the image form operation controls the operation of the document transporting mechanism so as to transport a document prefed to the position before the platen, in a predetermined direction. When a trouble occurs in the main body of the image forming apparatus during the image forming operation and the stop instruction is issued, a document on the platen is immediately transported to a document discharge tray, and also a document which has been prefed to the position before the platen is transported to a predetermined position (onto the platen, the document discharge tray or the document feed tray).

Abstract: An automatic document conveying device comprising a paper-feeder for sequentially separating one document sheet from a stack of document sheets loaded on a document loading table and for sequentially transporting each document sheet to a standby position upstream of an image exposure section and for halting each document sheet at the standby position, the standby position being variably determined by the length of each document sheet. A conveyor conveys each document sheet from the standby position to an exposure position on the image exposure section on a glass surface of the document loading table, each document is discharged after it is scanned and exposed by the image exposure section. The image exposure section is controlled to scan and expose a first document sheet, and a second document sheet is halted at the standby position while the first document is being scanned and exposed.

Abstract: An instant photocopying apparatus that allows scanning of an optical means to be carried out plural times continuously by one copying starting operation in the instant photocopying apparatus for sequentially imaging and copying fine areas of an object on an instant photosensitive material by scanning the optical means in parallel to the object is provided.A scanning number setting means 57 is provided and a control circuit 48 is programmed so that it scans continuously by the number of times set by the scanning number setting means 57. An user set any scanning number by the scanning number setting means 57. Then when a start switch SW3 is pressed, the control circuit 48 lights up an illuminating means 24 and issues a command to a motor driving circuit 54 to scan continuously by the preset number of times from one end to the other end of a copying area.

Abstract: A microfilm camera comprises a camera head and a document support. The camera head includes a film transport mechanism for intermittently feeding a strip of microfilm past an exposure station at which an aperture plate is disposed. The aperture in the aperture plate is adjustable in one of at least two different sizes by means of a masking flap supported for movement between a first size position, in which a portion of the aperture is shielded, and a second size position in which the masking flap is clear from the aperture. When a document of a relatively small size is placed on the document support, the masking flap is in the first size position, but when a document of a relatively large size is placed on the document support, the masking flap is in the second size position.

Abstract: An exposure apparatus for selectively exposing the peripheral portion of a circular substrate such as wafer for integrated circuit manufacturing purposes. In this exposure apparatus, the spot of an exposure light beam from a projecting system is projected onto the peripheral portion of a resist-coated surface of a substantially circular substrate in such a manner that a part of the spot projects from the peripheral edge of the substrate. The portion of the spot projecting from the peripheral edge of the substrate is received by a detector arranged opposite to the projecting system through the intermediary of the substrate peripheral portion so that the position of the substrate peripheral edge in the projected spot is detected in accordance with the contour position of the received spot portion.

Abstract: An image reading apparatus is provided with a transparent plate horizontally disposed on which an image reading operation is performed, and a transporting device disposed above the transparent plate for transporting an original sheet to the transparent plate. The transporting device includes a pressure roller for pressing the original sheet onto an upper surface of the transparent plate at a pressure applying position and transporting the original sheet along the upper surface of the transparent plate. The image reading apparatus is also provided with a light source disposed below the transparent plate for illuminating through the transparent plate a portion of the transported original sheet. The illuminated portion of the original sheet is positioned on the upper surface of the transparent plate at an upstream side of the pressure applying position with respect to a transporting direction of the original sheet.

Abstract: An instant photocopying apparatus includes a case placed on a document and a base plate formed with a window through which the document is visible and which is pivotably mounted on the case. An opening portion is formed in an upper surface of the case in superimposed positional relationship with the window. An instant photosensitive material is provided which has a photosensitive surface and a printing surface for forming an inverted image of an image formed on the photosensitive surface as a visible image. A cassette accommodates the instant photosensitive material, and a cassette holder is provided on an upper surface of the case and into which the cassette is chargeable.

Abstract: A film supplying apparatus includes a holding member for holding the vicinity of leading end portions of strips of negative film placed therein in a superposed state with a longitudinal direction of the negative film set in a curved configuration, and a pressing device for pressing an innermost ones, as viewed in a curved state, of the strips of negative film against a feed roller via the holding member. Accordingly, as the feed roller is rotated in the negative film feeding direction, the strips of film starting with the innermost one, as viewed in the curved state, of the strips of negative film are consecutively fed to a printer. In this case, since a force acting in a direction in which the curved shape of the film is reduced is applied to the negative film being fed, no large friction occurs with respect to the remaining film.

Abstract: A mounting assembly for a film drive unit used with photographic film printers. A mount base having a central aperture is adapted to be secured proximate the optical stage of a photographic printer. A pair of substantially parallel rails are attached to the mount base and oriented so as to lie substantially in the plane of the mount base. A pair of carrier blocks having upwardly projecting cradle portions are mounted for sliding movement on respective rails. An outwardly projecting keeper shaft is secured to the mount base and has a pair of keeper pins adapted to extend away from the shaft. A brace member supports a film drive assembly proximate the central aperture and has a pair of pins positioned on opposite sides so as to engage the cradle portions of corresponding carrier blocks. At least one spring-biased retaining element is disposed in the cradle portion of each carrier block.

Abstract: A copying system has an automatic document feeder capable of feeding continuous original. This system has a device for inputting the number of sheets of the original to be copied, a counter for counting the number of copied sheets of the original, a comparator for comparing data outputted from the inputting device and the counter with each other, a body controller for controlling the copying operation of the copying system, and a feeder controller for outputting commands for feeding and discharging the sheets of the original to the automatic document feeder by the data from the comparator. The feeder controller outputs a copy processing signal to the body controller.

Abstract: A sheet transporting apparatus, for transporting a sheet from a sheet supplying device to a sheet supplied device, includes a transporting path, through which the sheet is transported, and a plurality of driving rollers disposed along the transporting path. The plurality of driving rollers are adapted to independently rotate so as to transport the sheet through the transporting path by sequentially rotating in a prescribed manner based on a position of the transported sheet. The sheet transporting apparatus also includes a coupling device for selectively coupling and decoupling the driving rollers to each other. The sheet transporting apparatus further includes a device, such as a knob, for rotating one of the driving rollers.

Abstract: A sheet resist apparatus disposed in a transporting path of a recording sheet transported from a sheet supplying unit to an image forming unit in an image forming apparatus, includes: a pair of first rollers disposed in the transporting path; a pair of second rollers disposed in the transporting path at a downstream of the first rollers; a first driving device for rotating the first rollers to transport the recording sheet toward the second rollers; and a second driving device for rotating the second rollers to transport the recording sheet, which is transported from the first rollers, toward the image forming unit in synchronization with a timing of image-formation of the image forming unit.

Abstract: The leader of a developed photographic film advanced from a cassette is transported to a curl quantity measuring unit. The curl quantity measuring unit measures, as the curl quantity, a height of the end of the film leader maintained free. In accordance with the obtained curl quantity, the temperature and heating time of a heating roller are controlled to straighten the curl. The developed photographic film with the curl straightened is transported to a print station at which an image within a frame to be printed is projected to a color paper while pushing the peripheral portion of the frame.

Abstract: When printing a frame of a film immediately after developing the film, a mini-lab photofinisher observes the frame that is positioned in a printing station of a mini-lab type printer-processor, so as to input exposure correction data as needed. While positioning the frame in the printing station, frame number bar codes recorded on the film are read to determine the number of the frame. The determined frame number is printed on the reverse of the print image made from that frame. After printing all the frames, a bill printer prints the frame numbers of the printed frames and the corresponding exposure correction data, along with the photofinishing price. When making extra prints, the necessary number of extra prints is written in the bill slip, so that the photofinisher may finish the extra prints with substantially the same quality as the original print by referring to the exposure correction data printed in the bill slip.

Abstract: The apparatus of the invention comprises a conventional photocopy machine having a stationary light receiving device and a moving copyboard in combination with a light fixture attachment. The light fixture comprises an elongated lamp and a support for holding the lamp above the copier and aligned with the stationary image receiving device. The support comprises a base which is positioned under the copier, a vertical leg attached to the base, and a horizontal arm pivotally connected to the vertical leg. The lamp is secured to the horizontal arm. The pivotal connection of the horizontal arm to the vertical leg permits the lamp to be pivoted to and from a position above the copyboard. The lamp when pivoted over the copyboard is aligned with the light receiving device of the copier. Thus, when a radiograph is placed on the copyboard, light emitted from the lamp passes through the radiograph and copyboard and is received by the image receiving device of the copier.

Abstract: An image reading apparatus has an automatic original transporting device, a scanning device for effecting exposure scanning of the original while moving relative to the original over a platen glass, and a control circuit for controlling the scanning device to cause it to effect exposure scanning while moving it in a direction opposite to the direction in which the original is being transported. An image forming apparatus which includes the above image reading apparatus is also provided.

Abstract: The improved slit scanning exposure apparatus has a variable slit assembly that is provided in proximity with the exposing zone and which is composed of two slit plates movable independently of each other in synchronism with the scannning speed. The apparatus may additionally have a color filter that can be inserted into the optical path of reflected light from the image on a document in the scanning direction. The apparatus is capable of preventing flare from being admitted through an exposure slit to a light-sensitive material on the exposure position when it is being exposed from light reflected from the document image. In addition, the apparatus enables more than one document image to be edited into a single image and permits the color filter to be inserted into the optical path of reflected light without causing unevenness in colors.

Abstract: An image recording apparatus has an exposing device in which the light from a light source is irradiated to an original text and a photosensitive, pressure-sensitive paper is exposed to the light from the text in correspondence to the image of the text. The image recording apparatus is designed so that the light source and the photosensitive, pressure-sensitive paper have a relative movement by means of a movement device, with the moving speed being varied by means of a moving speed control device. The duration of exposure of the photosensitive, pressure-sensitive paper by the exposing device is varied in response to the moving speed, whereby the level of exposure can be varied. Accordingly, this image recording apparatus, which is simple in structure, accomplishes a variable exposure level for the photosensitive, pressure-sensitive paper without the need of varying the light output of the light source and regardless of the type of the light source.

Abstract: With an exposure apparatus according to the present invention, it is possible to project an image of a mask in a any large number onto a band-shaped film sequentially in a longitudinal direction with high precisions in position, magnification and focus. Thus, the apparatus can be provided for fabrication of an FPC film of a high circuit density.

Abstract: A spool assembly for use in a printer assembly which allows substantially the entire web of photographic paper to be exposed in the printing process. The printer assembly includes a web, a printer operative to expose photographic images on portions of the web, and a drive means operative to systematically convey the web of photographic paper through the printer. Extender strips of non-photographic material are attached to the ends of the web of photographic paper to allow the end of the web proximate the respective extender strip to be positioned within the printer for exposure purposes. The spool assembly includes a spool formed of a plastic material and a retaining clip mounted thereon to engage the related extender strip. The spool is adapted to maintain the paper in a rolled configuration and are preferably constructed with a central portion of reduced diameter which contains a retaining clip.

Abstract: A photosensitive material detecting apparatus having a single or a plurality of optical sensor(s) disposed at a selected location on a transport path of a photosensitive material and (each) including a light emitter and a light receiver for optically detecting the photosensitive material. This apparatus includes a pulse generator provided for a drive motor associated with the transport path. The pulse generator generates a pulse signal synchronized with rotation of the drive motor. The light emitters emit pulsed light whose intervals between ON periods are controlled on the basis of the pulse signal, such that the pulsed light has short intervals when the photosensitive material is transported at high speed and long intervals when the photosensitive material is transported at low speed.

Abstract: An image forming apparatus for forming a visible image using an elongated photosensitive recording medium, comprising an exposing unit for exposing the photosensitive recording medium to light in an exposure process to form a latent image thereon, a pressure-developing unit for developing the latent image into a visible image in a developing process, a sheet feeding unit for feeding the photosensitive recording medium through the exposing unit over the pressure-developing unit along a sheet feed path, a sheet rewinding unit for rewinding the photosensitive recording medium after the developing process to feed the photosensitive recording medium to a predetermined position in the sheet feed path, thereby performing a sheet rewinding operation, and a sheet feed control unit for selecting one of at least two modes of first and second modes such as speedy and saving modes and controlling the sheet rewinding unit to carry out the sheet rewinding operation only when the second mode is selected.

Abstract: An image forming apparatus provided with a sensor for detecting a sheet transport problem. When a sheet transport problem occurs before a sheet reaches an image forming section, the sheet is returned to a sheet feeding section, and when a transport problem occurs at or after the image forming section, the sheet is forwarded to a sheet receiving section. When the problem sheet is either returned to the feeding section or forwarded to the receiving section, the apparatus is set to an operational condition. When the problem sheet can be neither returned to the feeding section nor forwarded to the receiving section, further operation of the apparatus is inhibited.

Abstract: An electrophotographic copier/duplicator having a 17".times.11" wide endless photoconductor includes single imaging apparatus for forming and processing a single 17".times.11" image at a time, within a 17".times.11 " image frame of its photoconductor, and dual imaging apparatus for simultaneously forming and processing two 8.5".times.11" images at a time, within a 17".times.11" image frame of such photoconductor.

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: A projection unit, which is mounted in a copying machine and used to project an image of a light permeable original onto a prescribed exposure point on a photosensitive material, comprising a light source for exposure in a box, an original holding means which holds the original in a prescribed position with respect to the light source and the photosensitive material and is disposed movably in the box so that the image of the original is scanned in a prescribed direction with respect to the photosensitive material, a driving means for moving the original holding means in the scanning direction, a transmission means provided between the original holding means and the driving means which is capable of moving between an engaged position in that the transmission means is coupled to the original holding means and driving means so as to transmit power of the driving means to the holding means and a disengaged position in that the transmission means is not coupled to the original holding means and the driving means,

Abstract: Disclosed is a collating device for collating the images on a photographic film with those printed on a printing paper from the photographic film while conveying the film and the printing paper. The collating device includes a reading device for reading a frame number for identifying the frame image on the film, and a printing device for printing the frame number which has been read by the reading device on the printing paper on which has been printed the image on the film which corresponds to that frame member. The frame numbers of the film are printed on the printing paper on which have been printed the images on the film. In consequence, the print images on the printing paper are easily made to correspond to the corresponding frame images on the film, and designation of the frames is facilitated.

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 system for copying large documents on a large document copier having a large document sheet feeder and a large copy sheet or web feeder with improved convenience and efficiency by inserting the leading edge of the large document into the document feeder from the front of the copier, automatically initially rapidly feeding the large document away from the front of the copier with the document feeder, pausing the feeding of the large document in a position wherein a trailing portion is retained in the document feeder but a substantial portion of the document is at the rear of the copier, so that the front of the large document copier is unobstructed, then inserting a copy sheet or web into the copier from the front thereof for copying, and in response to this and copier activation, first automatically rapidly feeding the large document back in a reverse direction with the large document feeder without copying, up to a position where a leading edge portion of the document is retained by the document feeder, an

Abstract: A rewind device for a photosensitive sheet in an image forming apparatus comprises a supply shaft reversing device which winds back the photosensitive sheet by rotating a supply shaft rotatively supporting a photosensitive sheet roll in the reverse direction to the drawing direction of the photosensitive sheet and a control device which measures a rotation amount of the photosensitive sheet roll in the drawing direction for the photosensitive sheet and that in the reverse direction. The control device is composed so that it may stop the winding back of the photosensitive sheet by the supply shaft reversing device in order to constantly wind back a fixed amount of the photosensitive sheet by comparing both of the rotation amounts.

Abstract: An image forming apparatus includes a document table on which a document is to be placed. The document table has first and second end portions opposed to each other. An exposure mechanism is arranged to be movable between the first and second end portions of the document table along therewith. The exposure mechanism projects light onto the document table to scan a document on the document table from the first end portion to the second end portion. A document placed on the document table is positioned by a positioning member so that one end of the document is aligned with the first end portion of the document table.

Abstract: A portable and highly compact copier for photographically copying a selected portion of an illuminated image. The copier includes a lighttight housing having an opening therein and having a support for temporarily maintaining photosensitive material at a focal plane within the copier housing. An array of image-transferring cylindrical microlenses, each microlens having an image end and an object end, is slidably mounted in the housing opening with the image ends adjacent the focal plane and with the object ends facing outwardly of the copier housing opening. An electrical drive motor is provided which is mechanically coupled to the microlens array. A self-retracting shade arrangement forms a slidable lighttight seal between the microlens array and structure forming the housing opening such that all of the light passing though the housing opening and to the copier housing focal plane must pass through the microlens array.