Abstract: A copier is equipped with an automatic paper transporting device such that documents which have been processed and removed from a document processing position can be discharged onto a receiving discharge tray in a specified sequence. The discharge sequence is stored as input data and a central processing unit makes reference to these data in controlling the motion of the documents, determining for each document whether it should go directly onto the discharge tray or should be temporarily held on another tray. Similar transporting devices can be used in connection with a copier such that documents can be fed in a specified order which may be different from the way they are stacked or that copy paper sheets processed in a certain sequence may be discharged in a different specified sequence.

Abstract: An automatic document feeder includes a reserved original feeding station including first stacking device for stacking originals, a first feeder for feeding one by one the originals stacked on the first stacking device, a first conveyor for conveying, without inversion in facing orientation, to a processing station the originals fed by the first feeder and a tray for receiving the original discharged from the processing station.

Abstract: The duplex copying machine according to the present invention is arranged to copy both faces of an original document onto both faces of copy papers in such manner that the front and the reverse surfaces of the original document are copied correspondingly onto those of the copy papers, without inconsistency of the copied surfaces, even when paper jamming is given rise to in the course of the operation under the verso copying mode.Further, the duplex copying machine according to the present invention has such function as to positively classify the copy papers subsequent to the jammed paper into respective proper bins.

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: An automatic document feeding device additionally provided with a function of feeding the original to the transparent platen at a first feed position thereof when the original is fed from the original feeding section to the original delivering section, and feeding the original to the transparent platen at a second feed position thereof adjacent to the first feed position above-mentioned, when the original is fed from the original reversing section to the original delivering section, thereby an electrophotographic copying apparatus can be additionally provided easily with a function of respectively copying the obverse and reverse sides of the original on the same copying paper at its right- and left-half portions so that the copied paper will be a double truck.

Abstract: Cut paper electrophotographic printers with continuous paper feed mechanisms including a pickup roll, a photosensitive drum, a charging unit, an optical unit, a host controller, a developing unit, a transfer unit and fixing rolls. Further included are first and second branch passages for providing alternate feeding paths to continuously feed cut paper sheets to the photosensitive drum.

Abstract: An electrostatic copying apparatus and an auxiliary unit detachably mounted on the electrostatic copying apparatus to diversify the mode of image formation. The electrostatic copying apparatus includes a paper conveying passage, a paper feed means for feeding paper to the paper conveying passage and a paper feed passage having its downstream end connected to the paper conveying passage, and a copied image is formed on one surface of paper while it is conveyed through the paper conveying passage after being introduced into the conveying passage from the paper feed means or the paper feed passage. The auxiliary unit includes a paper moving passage whose upstream end is to be selectively connected to the downstream end of the paper conveying passage of the copying apparatus and a paper stock means whose upstream end is connected to the downstream end of the paper moving passage and whose downstream end is connected to the upstream end of the paper feed passage of the copying apparatus.

Abstract: An improved composite copying apparatus which is so arranged that, with an image area once set being memorized, a trimming mode and a masking mode are exchanged with respect to the same image area in each of the copying processes for two times, while the two copying processes can be continuously effected by a two-surface continuous copying device and a circulation transport device, whereby setting of modes, inputting of data, and setting of original documents and paper sheets may be eliminated at the second copying process for simplification of the composite copying operation.

Abstract: A document conveying system suitable for use with a copying apparatus, printer, etc., including a document storage section located above a document illuminating section. Documents supported in a stack in the document storage section are fed one by one through a forward portion of the document storage section and have their direction of movement altered so as to move in an opposite direction. The direction of movement is altered again to move them the same direction as when fed from the document storage section, so that each document can be illuminatingly scanned in the document illuminating section. After being illuminatingly scanned, the documents are conveyed and have their direction of movement altered again, to be returned to the document storage section in a direction opposite the direction in which they were initially fed from the document storage section.

Abstract: A dual mode raster input scanner to scan either or both sides of a moving document advancing along a paper path through a scanning station in a first mode, and to scan one side of a stationary document on a scanning platen in a second mode. A scanning station, for scanning in a first mode, includes two scanning elements supported closely adjacent each other and on either side of the document path for scanning substantially simultaneously both sides of a document. A scanning platen supports a document for scanning in a second mode. One of the scanning elements is supported in a scanning position closely adjacent the other scanning element during said first mode and for scanning movement past said scanning platen in said second mode. A single sheet document input is also provided for the supply of single sheets or computer fanfold webs.

Abstract: The present invention relates to a copying machine capable of executing a duplex mode copying and composite mode copying. The copying machine has an intermediate tray for receiving and aligning the copied papers and for re-feeding them to an image formation station. The operation of the intermediate tray is controlled in accordance with the copy mode.

Abstract: An electrooptical scanner includes an optical system having mirrors for directing light from one side of a document through a lens to a charge coupled device and from the other side of the document through the same lens to a different charge coupled device. The scanner scans both sides at the same time using a straight paper path.

Abstract: An automatic original feeder for automatically feeding two sides of an original document to a reading position for image recording, and an image recording apparatus provided with such a feeder.

Abstract: The invention is a simple method for quickly defining page numbers for signature production, calculating a check value based on the total of page numbers, and displaying document identities and orientations on the platen for each signature to form a booklet. In particular, the operator enters the number of pages to appear in the booklet, the control calculates the number of pages in the finished book, the total number of signatures and a check value. The pagination of signatures is displayed for ease of operator orientation.

Abstract: A recirculating document feeder for presenting document sheets to a copier apparatus for reproducing multiple collated sets of information respectively contained on one face of such document sheets, or information respectively contained on both faces of such sheets, at a rate which makes maximum use of the full reproduction rate of the copier apparatus. In the recirculating document feeder, during the first circulation of a set of document sheets, after both sides of each sheet are exposed to reproduce information contained thereon, such sheets are returned to the hopper with their facial orientation reversed with respect to their initial facial orientation in the hopper. During all during subsequent circulations of such document sheets except the last circulation, after both sides of each sheet are exposed to reproduce information contained thereon, such sheets are returned to the hopper with the facial orientation reversed with respect to their initial facial orientation in the hopper.

Abstract: An automatic duplex copying machine with a circulating document handler is characterized in that a plurality of single-sided-image bearing documents are piled on the circulating handler and a document page having been copied on a front side on a copy paper is sheltered in a copier-paper discharge path of the circulating document handler. Upon the occurrence of a paper jamming during copying another document page to be copied on the rear side of the copy paper, another document is sheltered into a document reverse tray of the circulating handler. The document with the front side page sheltered in the paper discharge path is forwarded into a document table, again, to conduct a supplemental copy. After that, the document with the front side page is sheltered in the document discharge path and the document with the rear side page is forwarded into the document table, again.

Abstract: The invention relates to a method and apparatus for forming images on both sides or surfaces of sheets corresponding to images on two-side originals.In a method for two-side image formation for forming images on both sides of sheets from images formed on two-side originals, a first-side image formation cycle is continuously performed for a required number of sets of sheets, the first-side image formation cycle including sequential operations for forming images on the first sides of the originals on the first sides of the sheets and for storing the one-side copied sheets in an intermediate storing portion, and thereafter a second-side image formation cycle is performed by sequentially forming images of the second sides of the originals on the second sides of the corresponding sheets. The invention also relates to an apparatus adopting this method.

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 duplex copying method of making duplex copies from one-side originals, using an electrophotographic duplex copying machine provided with an ADF and an original detection means capable of detecting the presence or absence of original document in an original input tray of the ADF, and a means for detecting whether copying is performed on a front, odd-numbered side of a transfer sheet or a back, even-numbered side of a transfer sheet, and a sheet transportation change-over means for changing the transportation so as to discharge a one-side copy sheet, with the image side down, onto a copy sheet output tray, without transporting the copy sheet to the stations for forming images on the back side thereof, when it is detected that there is no original in the original input tray of the ADF during the detection of the front side copying in a one-side original - duplex copy mode.

Abstract: An image forming apparatus has a copying machine operable in a single side copy mode and a double side copy mode, a processor for commanding an interrupting copy operation in the double side copy mode, and a bin for storing, in a non-sort mode, the double-side copied papers fed from the copying machine in the interrupting copy operation.

Abstract: An automatic duplex copying type copying apparatus for automatically copying opposite copying faces of an original document onto opposite faces of a copy paper sheet, respectively, including first and second trays for sequentially accommodating first and second copy paper sheets, respectively, an original feeding device for feeding first and second original documents from an original feeding tray to an original platform, a transport device for transporting the first and second copy paper sheets to the first and second trays, respectively, an original returning device for returning the first and second original documents to the original feeding tray and a paper feeding device for feeding the first and second copy paper sheets from the first and second trays, respectively.

Abstract: An automatic duplex electrophotographic copying machine comprises a paper supply device, a photoreceptor, a copy enabling device, a copied paper expelling device, a single-side copied paper storing device, and a selector activated for selecting the copied paper expelling device or the single-side copied paper storing device. The single-side copied paper storing device is movable to receive the single-side copy paper and supply it to the paper supply device, so that the single-side copied copy paper is transported to the photoreceptor and the copy enabling device, to copy a new image onto the other or reverse side of the paper. The selector comprises a flapper flapped for the selection. The single-side copied paper storing device comprises a paper regulating device for regulating the exact position of the paper within the device to copy the image on the exact position of the reverse side of the paper.

Abstract: An original conveying-type image reading device includes first and second platens and first and second lamps for illuminating the platens. The first and second platens, as well as the first and second lamps, are disposed on opposite sides of an original conveying path so that the opposite sides of the original can be read as the original is transported through the device in one pass.

Abstract: A copier is described which is capable of simplex and duplex copying which includes a photoreceptor (11), first and second copy sheet trays (41 and 42) and a duplex buffer tray (43). A first sheet feeder (46) is associated with the first copy sheet tray (41) and a second sheet feeder (45) is commonly associated with the duplex buffer tray (43) and the second copy sheet tray (42). The trays (42, 43) are relatively movable for operatively associating them only one at a time with the second feeder (45). A control is provided for selecting sheet feeding from one of the copy sheet trays (41, 42) and further for controlling the trays such that during duplex copying copy sheets are fed only from the first copy sheet tray (41) and only the buffer tray (43) is operatively associated with the common sheet feeder (45).

Abstract: Reproduction apparatus for producing duplex collated copies from duplex and simplex original documents. A document feeding section circulates original document sheets a plurality of times to an exposure position. In a duplex mode of operation, the originals are inverted between alternative odd and even circulations such that even pages are presented for exposure on the first and every subsequent odd circulation and odd pages are presented for exposure on the second and every subsequent even circulation. In a simplex mode of operation, the pages are copied selectively, even pages on odd circulations, and the odd pages on even circulations. A duplexing section of the copier, including a first-in first-out intermediate hopper, operates in coordination with the feeding section to present and re-present copy supports to a position for receiving images on the appropriate first and second faces of the copy supports.

Abstract: A copying system for copying either duplex or simplex original document sets as pre-collated copy sets, utilizing a document handling system providing selective automatic recirculative pre-collation copying of either duplex or simplex document sheets, with selective automatic sheet inversion. Also described is an integral sheet stack normal force/jogger unit for continuous and simultaneous top loading and bottom feeding from either opposite or common directions from a stack of document or copy sheets.

Abstract: A servo-controlled recirculating automatic document feeder (RADF) includes a plurality of independently driven document transport devices. A picker mechanism separates documents in seriatim from a stack. An entry turnaround transport device buffers and delivers picked documents to a platen transport device for exposure. After exposure, the document is transported along a simplex or duplex path for duplex or simplex copying. The document is then buffered in an exit turnaround transport device and is subsequently returned to the stack. Each transport device is independently driven by a motor and a closed-loop servo. A common reference oscillator generates source signals for the servo-loops. A microcomputer operates on the source signals and generates reference signals for driving the transport devices.

Abstract: A both surface recording apparatus for a copying machine includes an image forming section for forming and recording an image on one surface of each sheet, which includes, on a paper transport passage to the image forming section, a turn-over guide portion for turning over and feeding-in each sheet after having been recorded on its one surface. A passage change-over section formed into a unit is attachable to and detachable from the apparatus, and is arranged to guide the sheet formed and recorded with the image at the image forming portion, through change-over either into a passage for discharging the sheet out of the apparatus or into a passage for returning the sheet to the turn-over guide portion.

Abstract: In a duplicating machine for duplicating images on both sides of copy sheets including a blanket cylinder and an impression cylinder, a mechanism for handling the sheets and re-feeding the sheets back to the impression cylinder for duplex copying. The blanket cylinder has first and second images transferable to the copy sheets. The impression cylinder forms a nip with the blanket cylinder for transferring the copy sheets through the nip. A first gripper on the impression cylinder releasably engages a lead end of a copy sheet and moves the sheet through the nip to transfer the first image on a first side of the sheet. A chain gripper releasably engages the lead end of the sheet transferred thereto by the first gripper and transports the sheet away from the impression cylinder. A swing gripper releasably engages a trail end of the sheet in timed relation with release of the sheet by the chain gripper and re-feeds the sheet back to the impression cylinder.

Abstract: Document exposure apparatus for a document copier is disclosed. Selectively, either the front or both sides of a document may be copied. Automatic transport apparatus first passes the document by a first optical scanning station from which signals representative of the front side of the document are obtained by a scanner. The document is then transported so as to engage a rotating drum. When only front side copying is desired, fingers of a solenoid actuated gate remove the document from the drum after a partial revolution is made and the document is passed to a receiving tray. When it is desired to copy both sides of a document, the gate is first lifted from the drum allowing the document to continue rotation with the drum so as to present the back side of the document, with the document traveling in the opposite direction, to a second scanning station to which the scanner has now moved, for copying the back side of the document.

Abstract: A double-side image forming apparatus has input unit for entering the number of desired image formation for forming images on both faces of a sheet-shaped image bearing member and a storage section for storing said image bearing member after image formation on a first face thereof. The apparatus is adapted, when the image formation on the first face of said image bearing members is interrupted before the completion of said desired number of image formations, to conduct in continuation the image formation on the second face of the image bearing members stored in said storage section.

Abstract: A document scanning system having a platen for scanning bulky documents and two separate exposing stations for front and reverse side scanning of automatically fed sheet-type original documents. The platen and the two exposing stations are arranged in a common plane for scanning by scanning elements carried on a linearly driven carriage. Image sensing is performed by CCD arrays mounted on the scanner carriage. Scanning at the two exposing stations is conducted with the scanner carriage stationary, while platen scanning proceeds with the scanner carriage moving linearly at a uniform speed.

Abstract: An automatic document handling system particularly suitable for raster input scanners which is capable of operating in either a simplex or duplex document handling mode. The document handling system has document input and output trays in operative relation with a reversible document transport roll which in turn cooperates with a pair of displaceable pinch bars to provide both a document feeding nip and means for selectively routing the document for either duplex and simplex processing. A document guide having an integral control gate effects inverting and recirculation of the document for duplex mode or in simplex mode return of the document to the document supply tray.

Abstract: A two-sided image recorder employs thermal printing heads and respective ink donor sheets contacting opposite sides of a recording paper as the paper makes a single pass through the recording paper passage.

Abstract: A microfilm camera employs a reciprocating lens to optically arrest motion of documents traveling in a high-speed stream for photographic exposure onto stationary, incrementally advanced photographic film. The reciprocation of the lens is controlled by a closed loop servo system. To enhance performance of the servo system, the lens is supported by a four-bar linkage comprising relatively stiff light-weight arms interconnected by crossed leaf spring hinges.

Abstract: A collation system is disclosed for use with a very high speed, fully automated reproduction system having a document handling apparatus, copy sheet processor, and a finishing station. In this arrangement, a sorter bin array is arranged to collate the copy sheets into copy sets corresponding to a multiple page document, the array being held stationary for the collection of some of the copy sheets and is moved past a sheet-receiving station for receiving at least one of the copy sheets.

Abstract: An electrostatic copying apparatus includes a main copying device for one-sided copying and an auxiliary copying device removably coupled with the main device for double-sided copying. The auxiliary device includes a director gate for selectively leading a recording paper, having been copied on one side and having been transferred from the main device through a paper exhaust opening thereof, to first and second auxiliary paper exhaust trays. The paper in the second auxiliary paper exhaust tray is again supplied to the main device through a paper supplying opening of the main copying device to enable the other side to be copied.

Abstract: A copying apparatus which automatically produces duplex copies in logical page sequence from simplex originals comprises transport paths for conveying originals to and from a copying position, imaging means for producing an image of an original onto a copy sheet, a first hopper to collect single-sided copy sheets, a second hopper to collect duplex copies and delivery means for delivering the duplex copies into the second hopper. The delivery means comprises a first delivery path and a second delivery path, and a detector in the transport path of the originals determines whether the number of originals to be copied is even or odd, thus causing the duplex copies to be delivered through the first or the second delivery path, depending on whether an even or an odd number of originals has been detected by the detector. The apparatus disclosed is also suited for programmed production of simplex copies from simplex originals, duplex copies from duplex originals, and simplex copies from duplex originals.

Abstract: A duplexing apparatus for printing data or information on both sides of a sheet of paper to be used with laser printers or paper copiers is disclosed. Sheets of paper are fed from a paper feeding station for presentation to an image transfer station. The image transfer station transfers toned images, present on a photosensitive member, to the sheet of paper. After the transfer, the paper is moved along a discharge path to a duplex device which is disposed in close proximity to the paper feeding station. The duplex device engages the sheet of paper leaving the transfer station and either discharges the paper if printing is done thereon to a discharge station or returns the sheet of paper to the paper feeding station for a second presentation to the transfer station for duplex printing. Coded pagination information is sensed and sent to a microcontroller which checks the data to confirm that the pages of data on each of the sheets are being printed in the proper order.

Abstract: An automatic pre-collation duplex copier in which original documents having either an odd or even number of pages may be recirculatively copied in reverse serial order yet provide properly collated output duplex copy sets. A simplex/duplex copying system is disclosed in which, when an odd number of document sheets are detected in a first, non-copying, circulation of the document sheets, the copying of the last and subsequent alternate document sheets is inhibited during the first copying circulation, whereas if an even number of document sheets are detected, the copying of the second and subsequent alternate document sheets is inhibited during this first copying circulation, and these different copying sequences are reversed for the last copying circulation. All document sheets are copied during the intermediate circulations. A compatible duplex/duplex copying system is also disclosed.

Abstract: An open face vacuum light table with an associated overhead high intensity light source is provided with a movable, preferrably pivotable, framer structure capable of overlying either of two table surface areas, at least one of which is provided with an apparatus, for example a vacuum grid, for drawing lithographic work pieces into close contact for light induced image recordation on film or other light sensitive receiver. The frame may carry a clear sheet of stripping base material that also serves as the vacuum completing face of the vacuum grid. The table is provided with stripping pin grooves about the perimeter of the entire table, an entire sub-area, partially around the table or a sub-area. Apparatus for maintaining one face of the pivoted frame in coplanar relationship with either of the table areas over which the frame is located may include an elevator mechanism associated with one or both table areas or an eccentric pivot between the frame and table.

Abstract: A system for feeding originals one by one from a stack of them to the illumination station of a copying machine and finally back to the top of the stack, so as to enable automatic production of sets of correctly sequenced copies of double-sided and/or single-sided originals, comprises a holder for stacking originals, means for removing the bottom original from the holder, a first transport path for transporting the original from the holder to the illumination station via its inlet side with the side of the original that faced downward in the holder in position for copying, means for transporting the original from the exit side of the illumination station into a reversing path and from the reversing path again via the inlet side to the illumination station, and means including at least part of the reversing path and a final transport path for returning the original from the exit side of the illumination station to the holder and placing it in its original orientation on top of the stack.

Abstract: Simplex to duplex copying, is simplified in particular, the requirements are to reverse order the documents for a first pass, place all the documents in a recirculating document handler, move half copies or one sided copies to an auxiliary feed tray, and finally reverse the order of the originals. In another feature, the blank sheets are automatically scheduled and not billed on a customer billing meter.

Abstract: A printing machine in which a sheet is moved into communication with a marking station to establish visible representations of indicia thereon. After establishing indicia on one side of the sheet, the sheet is inverted so that the same leading edge of the sheet moves into communication with the marking station. As the other side of the sheet moves into communication with the marking station, visible representations of indicia are established thereon.

Abstract: Copy production machine under program control selectively interleaving copy separation sheets between successive copy jobs. The copy separation sheets can be supplied from the same copy sheet supply source as the copies being produced or from an alternate supply source. The number of separation sheets supplied is a predetermined relationship between the number of copy receiving bins in an output receiving the copy separation sheets and the number of copies to be produced from a source. The effective capacity of a collator is extended by such interleaving using a programmable control that talies copies made versus copies selected greater than the capacity of a collator such that the collator job is automatically segmented.

Abstract: A system of pre-collation copying a set of duplex document sheets by inhibiting the operation of a document inverting path during successions of contiguous plural document copying circulations to copy only one side of the documents during each succession, and actuating the document inverter path only during single document circulations at the end of a succession, after the document set has been circulated a number of times in that succession equal to the quotient of a constant number divided by the number of document sheets in the document set. Opposite sides of the documents are copied in alternate successions, and all the copies made during every other succession of plural recirculations are temporarily stored in a buffer set of a pre-determined maximum desired copy sheet capacity. The constant number corresponds to this copy sheet capacity.

Abstract: A conveyor belt (14) conveys a document (19), (32) over a transparent glass platen (10) to a scanning position. An automatic document feed unit (22), (26) feeds documents (19) from a stack one by one between the lower run of the belt (14) and the platen (10) for conveyance over the platen (10). A manual feed unit (34) feeds documents (32) manually inserted thereinto one by one onto the upper run of the belt (14) from which the documents (32) are guided downwardly over an end of the belt (14) between the lower run of the belt (14) and the platen (10) for conveyance over the platen (10). The relative positions of the automatic and manual feed units (22), (26); (34) may be reversed. The documents (19), (32) are discharged by the belt (14) onto a tray (54) after scanning.

Abstract: An electrophotographic copier has an extended transport path, including a storage for duplex functions, for copying documents which may be reproduced, to a selectable number of copies, from a master. The master is positioned first at an imaging station, so that the desired number of image transfers to copies can be made. The master document transport system recirculates the imaged master, holding it at a storage station spaced apart from the image station, while a second master is positioned at the image station. The system need not be delayed by requiring that all of the copy documents reach an exit position before the second master is inserted. Moreover if a jam occurs in any of a number of modes of operation the system is able to recall one or two masters as needed to complete the run in most expeditious fashion.

Abstract: A copying machine including a first sheet original illuminating and conveying device for moving sheet originals and exposing the same to light, a second sheet original illuminating and conveying device for moving sheet originals disposed at a position which does not interfere with the first sheet original illuminating and conveying device and exposing the same to light, a device for controlling a sheet original so that one surface of the sheet original is exposed to light by the first sheet original illuminating and conveying device and so that the other surface of the sheet original is exposed to light by the second sheet original illuminating and conveying device, a main optical device for forming a first and a second optical path so as to enable one of the images of the sheet original conveyed by the first or the second sheet original illuminating and conveying device to be selectively exposed at an exposure position near a photosensitive medium, and a first movable mirror change-over device for selecting

Abstract: The auto document feeder is for use with duplex copying machines, and is capable of inverting duplex sheet originals, having images on both surfaces, automatically and feeding the originals to an exposure station automatically. The feeder comprises trays for stacking a plurality of sheet originals to be copied, sheet feeding devices for feeding the sheet originals individually from the trays to the exposure station, a platen belt mounted on the exposure station and operable to transport a sheet original across the exposure station and to maintain each sheet original in close contact with the exposure station during exposure of the sheet original, from either side of the exposure station, sheet inverting devices for inverting sheet originals received from the exposure station, and a sheet transport device for transporting inverted sheet originals to the exposure station for completing the duplex copy.