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 method and apparatus is disclosed for generating duplex copies from simplex originals. A plurality of originals are sequentially fed through the copying area of an electrophotographic copying machine during a first pass with a predetermined number of copies being electrophotographically made only with respect to each original appearing at an even number in the sequence as fed to the copying area and with the copies being made on one side of separate sheets of copy paper withdrawn from a storage receptacle. After collection of the sheets of copy paper from the copying area, these sheets are replaced in the storage receptacle and the plurality of originals again sequentially fed through the copying area of the copying machine during a second pass.

Abstract: Copy production machine selectively interleaves copy separation sheets between successive copy jobs, subjobs, or job portions. The copy separation sheets can be from the same copy sheet supply source or from an alternate source. The supplied copy separation sheets need not be operated upon by the copy production machines, i.e., receive an image. Such sheets may be preimaged if so desired. When copy sheet supply means has different size copy sheets, the separation mode may be inhibited. The number of separation sheets supplied depends on the number of copy receiving bins in an output means and the number of copies produced from a single image. The effective capacity of a collator is extended by the use of separation sheets.

Abstract: Images of a microfilm on which images of the pages of a book are recorded are alternately and successively formed on an electrophotographic member for printing the obverse surface of a web and on another electrophotographic member for printing the reverse surface of the web. Then, these images formed are transferred and fixed onto the obverse and reverse surface of the web, thereby to complete printings of the respective pages of the book. Finally, the web with the printed images is folded at an interval of one page and the folded web is cut and bound. A consecutive copying and bookbinding apparatus comprises an electrophotocopying apparatus disposed on an image projection path of a microfilm projector provided with projection path changing mirror. Another electrophotocopying apparatus is disposed on a projection path normal to the aforesaid projection path. Rollers are provided to continuously feed the web past these electrophotocopying apparatuses.

Abstract: Apparatus for selectively, typically repetitively, moving a fixed message document to and from a photographing position on a document camera system. Logic control means on a fixed messsage carrier apparatus coact with system-operating means and transport means of the camera system to control the to and from movement. Any selected fixed message document can be handled. It is removably stored between flexible belts and cylindrical means that are in peripheral contact, and is unwound therefrom to the photographing position, and vice versa.

Abstract: First and second original documents are copied on the opposite sides of a copy sheet in superposition in such a manner that the centers of the two copied images on the opposite sides of the copy sheet are coincident with each other. The two copied images are offset from the center of the copy sheet, leaving a blank area at one edge of the copy sheet for binding a number of copy sheets together in book form. The present copying machine is further provided with two sheet cassettes containing copy sheets of different sizes, means for selecting the desired copy sheet size and intermediate sheet holder means for temporarily holding the selected copy sheet between the copy operations of the first and second original documents.

Abstract: A copy reproduction machine having an automatic document handler adapted for top feeding or botton feeding documents from the document supply tray. An inverter is also provided so that, depending on the machine operating mode selected, i.e. simplex (one sided) document to simplex copy, simplex document to duplex (two sided) copy, duplex document to simplex copy and duplex document to duplex copy; the documents are returned to the stacking tray in the proper page order.

Abstract: A reproduction machine for making either single sided or duplex copies, and incorporating automatic document handler and sorter for handling original documents being copied and copies made. To enable copy quality to be checked, either when the machine is stopped or in the midst of a copy run, a sample copy is provided for. Where the sample copy is selected during a copy run, an accommodation in copy billing rate is made.

Abstract: Document sheets are fed to a platen of a copier from two feeding apparatus, one of which is a recirculating feeder adapted to sequentially feed a plurality of document sheets of one document to the platen for copying information on one or both sides of each sheet. The sheets are circulated in a manner that results in the production of collated sets of copies. The platen also can receive one or more sheets of another document fed from a document positioner. The positioner can be used to feed a document that is too large to be accommodated by the recirculating feeder, or it can feed a document that may not be reliably handled by the recirculating feeder (such as a document made by assembling pieces of copy onto a backing sheet), or the positioner can feed documents comprising a single sheet. Also, the positioner can be used for making document masters that are then copied using the recirculating feeder.

Abstract: An apparatus for producing duplex copies. First and second unfixed images are transferred to opposite sides of a copy sheet before fixing of either image to the copy sheet. The first and second unfixed images may be electroscopic images sequentially formed on a photoconductor by electrophotographic techniques. The first unfixed electroscopic image is transferred from the photoconductor to a first side of a copy sheet, the sheet is inverted while the first image thereon remains unfixed, the second unfixed electroscopic image is transferred to the second side of the copy sheet, the copy sheet with the first and second unfixed images thereon is then transported to a fixing station.

Abstract: Reproduction apparatus for producing simplex or duplex copies. A plurality of individual reusable photoconductive members are provided in a supply and are sequentially transported around a path back to the supply. Positioned along the path are charge, expose, development, transfer and cleaning stations. In the simplex mode, first toner images are sequentially formed on photoconductive members transported around the path and sequentially transferred at the transfer station to first sides of copy sheets brought into transferable relationship with the photoconductive members. In the duplex mode, first and second toner images are formed on first and second photoconductive members respectively transported around the path and the toner images are transferred at the transfer station to opposite sides of a copy sheet brought into transferable relationship with the first and second photoconductive members.

Abstract: Apparatus for producing duplex or simplex collated copies from duplex and simplex originals comprising a copier having a duplexing section with two transfer stations separated by a copy-sheet inverter. A document feeding section circulates and recirculates original sheets, one-after-another, for producing sets of copies in page-sequential order. The document feeder is provided with a single hopper for receiving and maintaining the originals in their usual page sequence or order so that no preparation (i.e., special arrangement) of an original is necessary prior or subsequent to copying for making collated copies. The duplexing section requires only a single fuser that is positioned so that the copy sheets pass through both transfer stations before entering the fuser, thus permitting transfer of images under similar conditions in both transfer stations.

Abstract: A convenience copier is provided with the capability for producing duplex, collated copies in page-sequential order, or an approximation thereof. The copier includes a processing section for establishing visible representations of the original, feeding sections for presenting the original sheets and copy sheets to the processing section on a one-original-sheet one-copy-sheet basis, and inverting means for presenting both faces of the original sheets to the processing section for copying and both faces of the copy sheets to the processing section for receiving the visible representations. The original sheets are circulated to the processing section in a manner suitable for producing collated copies and inverted with each circulation in a manner suitable for producing the copies in page sequential order.

Abstract: A duplex reproduction system which produces duplex copy sets in collated separated stacks from a stack of precollated documents includes a document feeding apparatus which feeds a stack of documents individually onto the platen of a copy processor for producing copies of each document. The copy sheets are transported to a receiving tray in a sorting apparatus which does not sort the copy sheets when producing the first side of the duplex copies. As an improvement, the copies are cleaned on the back (non-image) sides thereof to remove unfused toner. The documents are reloaded into the document feeding apparatus for feeding the documents with the second side onto the platen of the processor. On the simplex or first pass a circuit disables the sorting function of the sorting apparatus. The copy sheets are removed from a single receiving tray of the sorter for a second or duplex run.

Abstract: Copying apparatus for copying both sides of a record which is placed for copying between two transparent sheets mounted in the front focal plane of a lens system of the apparatus, the sheets are pivotal about a hinge axis adjacent one side of the sheets, the sheets being rotatable through at least 90.degree. about the hinge axis which is in or to one side of an optical axis of the lens system. To copy the reverse of the record the sheets are turned through 90.degree. and in one embodiment where the hinge axis is in the optical axis a masking means having two apertures one on one side and the other on the other side of the optical axis shifts to record the reverse; in another embodiment where the hinge axis is to one side of the optical axis the hinge axis is shifted from the one side to the other of the optical axis. The sheets can be rotated about an axis in or parallel to the optical axis so that the sheets may be turned about a top or side of the record for "normal" or "tumble" turnings.

Abstract: A convenience copier having duplex capabilities includes a collating feeder that inverts the document automatically for copying both sides thereof. The copier includes a processing section for establishing visible representations of the document, feeding sections for presenting document and copy sheets to the processing section on a one-document-sheet one-copy-sheet basis, and inverting means for presenting both sides of the document sheets for copying and both sides of the copy sheets for receiving the visible representations. The document feeding section circulates and recirculates the document sheets from a supply to an exposure position and back to the supply, and inverts the document sheets during such circulation and recirculation in a manner suitable for making collated copies without disturbing the sequence of the document.

Abstract: An improved copy system includes a document feeding apparatus which is effective to move a document to an imaging station. An image on one side of the document is then projected on an electrostatically charged sheet to form a first master. The document is then transferred to an inverting mechanism which is effective to turn the document over and return it to the imaging station. A second master is then formed. The masters are sequentially transferred to a duplicating section which includes a printing unit. The printing unit utilizes the masters to print on one side of a sheet of material as it passes through a printing nip. During a printing operation, blank sheets are sequentially fed from a supply pile through the printing nip and the first master is utilized to print images on first or front sides of the sheets. The sheets which have been printed on only one side are then sequentially deposited in a hopper.

Abstract: In an electrostatographic duplex copying system wherein a first image is transferable from an image support surface to one side of a copy sheet by electrical transfer fields, and the copy is then removed from the image support surface, and the first image thermally fused, and the copy sheets are then subsequently returned to the image support surface for the transfer of a different image to the other side of the sheets, duplex switching means are provided for changing the level of the net applied transfer fields for the second side transfer to compensate for changes in the characteristics of the copy sheet from the first side transfer and fusing, preferably by switching the D.C. bias level of a D.C. biased A.C. transfer detacking corona generator.

Abstract: A document handling system for making multiple precollated copy sheet sets from a set of individual document sheets. The documents are recirculated between a pair of web scrolls and repeatedly imaged on an exposed intermediate web segment extending between the two scrolls. One web scroll is inside wound and above the plane of the intermediate segment, and a second scroll is outside wound and below the plane of the intermediate segment so as to provide unobstructed document loading and unloading access. The documents are retained before and on the second scroll by means of a second web unwound from a third scroll and commonly wound on the second scroll. The third scroll is movable from adjacent the document imaging area to another position in which the two webs separate on the second scroll. The second web does not pass through the document imaging area.

Abstract: A recorder, as for photographing original documents on microfiche, the documents selectively having information on one or both sides, which information is to be successively recorded at high speed. After initial transport by a feed belt, a first vacuum-retaining belt having document-present actuated controls moves the document to a photographing position. Thereafter this belt is reversed in direction and the document is taken from the first belt to a second vacuum-retaining belt by pneumatic force. Adhering to the second belt, the document is rotated 180.degree., side for side, and discharged again to the first belt. A second forward motion of the first belt returns the document to the photographing station, second side up. Further forward motion discharges the document. The images upon the fiche have the same orientation for both sides of the document for easy reading. Typically, one-sided documents are turned over, but are not photographed on the second (blank) side.

Abstract: A programmable controller is used to control the operation of a xerographic reproducing machine adapted to run in a simplex or duplex mode whereby copies are made on either or both sides of web material fed in a single pass and then cut into individual copy sheets.A control program, comprised of a set of program instructions, enables the controller to generate control signals for actuation of the process devices of the reproducing machine in a timed manner for production of copies as directed by the operator. In response to instructions by the operator concerning copy length, copy numbers, etc., the control program permits the calculation of requisite timing information for control of the machine operating components. The control program permits the operation of the reproducing machine to be responsive to the machine status in control of the machine operating components.

Abstract: A document moving apparatus having belt and pneumatic elements under electronic logic control to translate a document to a desired position, reverse translate it to a second position, turn it over, end-for-end, by motion at right angles to the direction of the prior translation while the document is adjacent to the second position, and thereafter to again translate the document to the desired position, inverted.

Abstract: A programmable controller is used to control the operation of a xerographic reproducing machine adapted to run in a simplex or duplex mode whereby copies are made on either or both sides of web material fed in a single pass and then cut into individual copy sheets. A master program for operating the machine components to produce copies in accordance with the copy run instructions inputted by the machine user is provided. The master program includes a subroutine to place the user's copy run instructions in preselected order irrespective of the order in which the copy run instructions are received, such order being correlated with the order in which the originals are presented for copying. In a second subroutine the controller periodically performs housekeeping chores checking the operational status of the machine.

Abstract: A recorder, as for photographing original documents on microfiche, the documents selectively having information on one or both sides, which information is to be successively recorded at high speed. After initial transport by a feed belt, a first vacuum-retaining belt having document-present actuated controls moves the document to a photographing position. Thereafter this belt is reversed in direction and the document is taken from the first belt to a second vacuum-retaining belt by pneumatic force. Adhering to the second belt, the document is rotated 180.degree., side for side, and discharged again to the first belt. A second forward motion of the first belt returns the document to the photographing station, second side up. Further forward motion discharges the document. The images upon the fiche have the same orientation for both sides of the document for easy reading. Typically, one-sided documents are turned over, but are not photographed on the second (blank) side.

Abstract: In an automatic mail processing apparatus, the mail is fed one by one by a feeding mechanism to a transport path having a stamp detecting station and a canceling station. At the former station, each piece of the mail is scanned by a pair of detectors which determine the presence or absence of a stamp at the lower end portion of both surfaces of the piece of mail. In the absence of a stamp at the particular portion, the piece of mail is switched to another transport path where it is reversed for subsequent rescanning. When the reversed piece of the mail is fed back to the transport path, the operation of the feeding mechanism is temporarily stopped to prevent the reversed piece of the mail from meeting with subsequent pieces of the mail to be fed by the mechanism.

Abstract: Apparatus for forming electrostatographic reproductions back-to-back on suitable support surfaces including first and second photoconductive imaging surfaces and means to provide a developed image on each photoconductive surface and provide simultaneous transfer of the developed images from the photoconductive surfaces onto both of the support surfaces.