Abstract: A double-sided printing apparatus includes: a first printing control unit which receives printing data including page-number information per slip so as to print a slip on the obverse of a sheet by selecting printing data for printing on the obverse; and a second printing control unit which receives size information of the slip to be printed on the obverse as well as printing data for printing on the reverse of the sheet. The second printing control reads a mark printed on the obverse by using a mark reading sensor at a timing according to the size information, and compares page-number information obtained by reading the mark with that included in the printing data for printing on the reverse, so as to print, on the reverse of one page of the sheet, a slip having the page-number following that of the slip printed on the obverse of the same page.

Abstract: An information processing apparatus for forming print data to be print-processed by a printer is constructed by: designation receiving means for receiving designation of a duplex printing, discriminating means for discriminating the number of pages in the case where data to be printed has been arranged on a recording paper, and command adding means for receiving the designation of the duplex printing by the designation receiving means and, in the case where it is determined by the discriminating means that the number of pages of the recording paper on which the data to be printed has been arranged is equal to an odd number, adding a command to urge a forced paper ejection in the printer lest a blank page of the last page is logically counted in the printer. A print data forming method and a print control program for realizing such an apparatus and a memory medium which stores such a program are provided.

Abstract: An image formation method and image formation apparatus capable of forming images on both sides of a recording medium even if a first image formation unit or a second image formation unit does not have the required functions. Detection is conducted to determine whether or not the first image formation unit and second image formation unit have the required functions. If, as a result of this detection, it is determined that one of the image formation units does not have the required functions, the method of forming an image on both faces of the paper is switched to the method for forming an image using only the image formation unit having the required functions.

Abstract: An image forming apparatus includes: a recording-media supplying tray for storing a recording medium; a print section for printing an image on the recording medium; a storing section for storing an adjustment value for a printing of the image in the print section related to a type of the recording medium or the recording-media supplying tray for each of two sides of the recording medium; and a control section for controlling the print section so that the printing of the image is adjusted for each of the two sides depending on the adjustment value for each of the two sides, which is stored in the storing section.

Abstract: An electrophotographic photoreceptor is disclosed. The charge transport material comprising a mixture of stereoisomers as a charge transport material and glass transition point Tgb of the binder resin of the charge transport layer and glass transition point Tgl of the charge transport layer satisfy 100° C.<Tgl1<Tgb(both Tgb and Tgl in ° C.). An image forming method employing the photoreceptor is also disclosed.

Abstract: An image reading apparatus for reading indicia on the front and back surfaces of a document using two image sensors includes a document detection sensor to detect the document, a first image sensor for reading an image on one surface of the document, a second image sensor for reading an image on the other surface of the document, and a controller. The controller starts to read the image data from the first and second image sensors when prescribed amounts of time have passed after the document detection sensor detects the leading edge of the document, and stops the reading of the image data from the image sensors. The structure provides a lightweight and compact apparatus while reducing image noise caused by the mutual interferences of the light sources in reading the image data.

Abstract: At the detection of an occurrence of a sheet feeder jam, in a case where media in the course of being printed on one face exist, printing this one face is continued, and this medium is inserted into the duplex printing unit. After this, relief of the sheet feeder jam is requested, and change in the duplex printing unit is monitored. In the case where there is no change in the duplex printing unit, after the printing process is re-started, re-use of the medium is allowed.

Abstract: An ADF (Automatic Document Feeder) of the present invention includes a path for conveying a document from a scanning position, reversing the document to switch it back, and again reversing the document to thereby convey it toward a receipt tray positioned below a feed tray. Another path conveys the document away from the scanning position, reverses the document, and then conveys it to the receipt tray. Two path selectors selectively steer the document to either one of the above two paths. In both of a one-side mode and a both-side mode, the document is driven out of the ADF to the same receipt tray. The ADF promotes rapid conveyance and facilitates the removal of a jamming document.

Abstract: In an image forming apparatus having a double side printing function, paper on which printing has been completed is prevented from being caught between paper ejection rollers.

Abstract: A sheet transport apparatus that re-transports a sheet having an image formed by an image forming portion on a first surface of the sheet, to the image forming portion in order to form an image on a second surface of the sheet on a side opposite to the first surface, the sheet transport apparatus including: a re-transport path through which the sheet is re-transported to the image forming portion again; a cooling unit for blowing air into the re-transport path in order to cool the sheet passing through the re-transport path; and an electrical substrate, in which the air having been blown to the sheet from the cooling unit to cool the sheet is prevented from striking the electrical substrate.

Abstract: A paper conveyance guiding apparatus of a duplex printer has an entrance passage disposed at one side of a printing unit to form a predetermined image on a paper and guide the paper to enter into the printing unit, a discharge and reverse passage formed to connect an outlet of the printing unit to an outside of a printer body and guide discharging of the paper and reversing of the paper to an inlet of the printing unit, an intermediate passage formed to connect the discharge and reverse passage to the entrance passage and guide the reversed paper to reenter into the printing unit through the entrance passage, and a reversible rotation roller disposed at a branching point of the discharge and reverse passage and the intermediate passage and discharge the paper coming out from the outlet of the printing unit by rotating forwardly and push the paper to the intermediate passage by rotating backwardly.

Abstract: In the case of using a plurality of printing means, even if a feeding speed of each printing means of the plurality of printing means is varied, a print of superior quality is always provided. The electronic print-board apparatus comprises a printing device for supplying a paper sheet P by a feeding roller to a printing section that is formed by a printing head and a platen roller and a control system. The control system pauses or reduces a speed of the feeding roller according to detection of a leading end of the paper sheet P by a paper detecting sensor so that the paper sheet P reaches the printing section coincidentally when an optical reading device starts scanning an image on a surface of a screen as it is revolved.

Abstract: An original document image scanning and printing device includes a scanning unit that scans an image of an original document, a printing unit that prints out the image, an image processing unit that rotates the image and a control unit that controls rotating and scanning the image in preference to rotating and printing the image when it is necessary to rotate the image scanned by the scanning unit.

Abstract: A printer device has first and second print media paths to carry paper from a sheet pickup mechanism to the printer device and then to a sheet exit opening. A third print media path carries the sheet from the sheet exit opening back to the printer device for duplex printing. A sheet diverter has first and second operating positions for allowing the sheet to pass in the first flow direction and for diverting the sheet in a second flow direction toward the printer device. A sheet pickup mechanism has a first operating position for the mechanism to pick up the sheet from a sheet dispensing tray and a second operating position in which the mechanism is part of a duplex printing path when the sheet travels in the second flow direction toward the printer device.

Abstract: A sheet re-feeding path (32) is disposed substantially horizontally at a location below a fixing unit (14) and an image forming unit. At a location below the sheet re-feeding path (32), sheet decks (3, 4) are disposed horizontally along a sheet conveying direction in the sheet re-feeding path (32). Also, a drawing path (37) for switchbacking the sheet is disposed substantially horizontally between the sheet re-feeding path (32) and the sheet decks (3, 4). A sheet feeding path (7) for feeding the sheet from the sheet deck (3) disposed at an upstream side crosses the drawing path (37) to join to the sheet re-feeding path (32). Accordingly, a space, which is occupied by component parts or devices related to the conveyance of the sheet, can be made compact, whereby sheet capacity can be increased.

Abstract: A skew-correcting media delivery system and method for driving media along a media path. A driver urges the media in a first direction and an opposite second direction along the media path. A substantially flat surface, which is aligned substantially perpendicular to the second direction, extends into the media path such that the trailing edge of the media operably engages the substantially flat surface when the media is urged in the second direction thereby aligning the media in the media path.

Abstract: For performing double-side printing, an image forming apparatus forms an image on one side of a sheet and then reverses the sheet if the sheet has not been reversed, forms an image on the other side of the sheet and then reverses the sheet if the sheet has been reversed once, and performs idle conveyance in which an image is not formed on a sheet and then discharges the sheet if the sheet has been reversed twice. According to the image forming apparatus and a method of forming an image by this apparatus, procedures of image formation by a user can be prevented from becoming troublesome and the sheets can be discharged in order of the originals.

Abstract: A CF printing system includes at least three CF printing devices; a plurality of print-related devices to effect duplex printing; the printing and print-related devices being selectably operable in accordance with a defined print line segment; and a print line manager for defining and managing the defined print line segments. The defined print line segments include a first duplex print line segment defining a first duplex print path in which two CF printing devices have been configured for duplex operation and a second duplex print line segment defining a second duplex print path in which one of the two CF printing devices and a third CF printing device have been configured for duplex operation. In the event of a failure of the first duplex print line segment, duplex operation may be continued by selecting the second duplex print line segment and re-threading paper according to the second duplex print path.

Abstract: An image forming apparatus reverses a sheet, on one side of which an image has been formed in an image forming section, transports the sheet back to the image forming section, and forms an image on the other side of the sheet, the apparatus has an inlet feed path for transporting a sheet, on one side of which an image has been formed; a switchback path for withdrawing the sheet transported from the inlet feed path; a plurality of reverse feed paths branching from the switchback path at plural positions, each of the reverse feed paths transporting a sheet while reversing the sheet; and a re-feed path for transporting the reversed sheet from any of the reverse feed paths back to the image forming section.

Abstract: An image forming apparatus includes a guide unit for guiding sheets fed by a sheet feed unit to an image forming unit, a discharge guide unit for discharging the sheets onto which images are formed, by the image forming unit, a re-transportation guide unit for branching the sheets from the discharge guide unit and guiding them through the image forming apparatus again, and a plurality of sheet sensors disposed in the re-transportation guide unit at intervals in a sheet transportation direction for determining positions at which the sheets are placed in a standby state, wherein the number of sheets, which are placed in the standby state is selected based on sheet size information so that more sheets are placed in the standby state when a sheet size is short than when it is long. Accordingly, the throughput of short sheets can be increased when images are recorded on both sides thereof.

Abstract: Disclosed is a method, system, and program for generating a blank side of a page in a print job. Bitmap data is received for at least one side of at least one page of a print job. The bitmap data for the at least one side is sent to a printer engine to control the printer to print the print job over a data path. For a blank side in one page in the print job, a command is issued to resend bitmap data for one side previously sent to the printer engine. A further command is issued to disable the data path to cause the transmission of white data to the printer engine. This disabling of the data path prevents the resent bitmap data from reaching the printer engine, which, in turn, causes the printer to produce the blank side in response to receiving the white data.

Abstract: A multifunction terminal is suitable for performing the functions of printing, scanning, copying, fax transmission and reception and/or sorting of documents. It comprises feeding stations (12, 14) for the sheets and the originals, a feeding path (18) with a printer (51) and a data reader (55), and a reception assembly (20) mounted pivotingly on a frame (10) and comprising reception holders (64, 65) and intermediate storing trays (62, 63). The sheets and the originals are fed by feeding members (77) into the storing trays, are retained there and displaced before being fed back into the feeding path where they are turned over for processing, printing, reading of their second face. Accordingly a multifunction terminal is obtained, which is simple to build, compact and reliable, providing a large number of duplex processing functions, all at a very moderate cost price.

Abstract: The switchback device has two switchback portions for inverting the conveying path of paper-like materials and a detour conveying path. The switchback portions receive paper-like materials in the nip between the switchback rollers and the pinch rollers, clamp the paper-like materials, decelerate, stop, and accelerate them in the opposite direction in a clamping state, thereby switch back the paper-like materials. The stopping time of paper-like materials in the switchback portions is changed according to the length of the paper-like materials in the conveying direction.

Abstract: A double side scanner module which consists of a U-shaped inversion device and two image information reading devices is provided for reading images on the two sides of an original in a single pass. The U-shaped inversion device has two ends for providing a paper feeding path and a paper output path respectively. The two ends are at the same side for the convenience of operation. At both of the two ends, there is a glass window. Beneath each of the glass windows, there is an image information reading device. When an original is fed into the paper feeding end and conveyed through the first glass window, the first image information reading device starts to read the image on the first side of the original. When the original is conveyed through the U-shaped inversion device, the scanned side will be inverted to the other side.

Abstract: A printing device includes a first printer and a second printer which continuously print one or plural pieces of printing data onto a printing medium. In the printing device, the second printer includes a reading sensor, the first printer first prints the one or plural pieces of printing data onto the printing medium by forming a mark indicating a page of the printing medium or each of the plural pieces of the printing data, the reading sensor in the second printer subsequently reads the mark and matches printing surfaces of the printing medium to be printed by the first and second printers, and the second printer thereafter prints the printing data onto the printing medium.

Abstract: In an image forming apparatus which uses a hollow space between an image reading section provided in an upper part of the apparatus and an image forming section provided in a lower part of the apparatus as a paper output space, the hollow space is used also as a space for temporarily holding a sheet of paper during a switchback operation. This arrangement helps prevent physical contact between the paper and the body of an operator or other objects and makes it easier to deal with a paper jam which is likely to occur during the switchback operation.

Abstract: A double-sided printing device for paper handling is proposed by the invention to allow users to print on both sides of a sheet of paper. The double-sided printing device employs the interaction between the switches, the obstructing unit and the turning unit to allow a sheet of paper to enter the turning unit and be turned over so that its back side will be directed to the printing unit.

Abstract: A thermal printer includes a thermal printing head in an image forming section, which prints an image on one of first and second surfaces of a recording sheet oriented downwards. Feeder rollers feed the recording sheet to the image forming section after the recording sheet is set in a sheet supply slot. The printer includes at least one first memory for storing first image data of an image for being printed on the first surface, and second image data of an image for being printed on the second surface. The first or second image data are read from the first memory, and input to the image forming section. A second memory stores information of discrimination bar code adapted for designating the second image data associated with the first image data according to common assignment to the recording sheet. The information of the discrimination bar code is read from the second memory at a time of printing with the first image data to the first surface, and is printed on the first surface by the image forming section.

Abstract: A double-side automatic feeding apparatus comprises a paper feeder, a paper outlet opposite to the paper feeder, a scanning region having a document traveling path bridging the paper feeder and the paper outlet, a plurality of rollers being arranged in the scanning region to convey a document to be scanned from the paper feeder to the paper outlet, and a paper flipping unit arranged in the document traveling path. The paper flipping unit can be selectively switched position thereof and used to flip the document during the document traveling path. By the invention, the document can be scanned on both sides thereof without cumbersome reverse movement. The document can be automatically aligned by the weight per se and the operations of paper placement and removal can be simplified.

Abstract: An image forming apparatus of the present invention includes a conveyance path extending from a sheet tray to an image forming section. A switchback path with a reversing device is connected to the intermediate portion of the conveyance path for switching back a sheet thereon. The switchback path reduces an interval between consecutive sheets being conveyed in the apparatus for thereby enhancing the productivity of image formation. In addition, the switchback path switches back a sheet being conveyed via a refeed path and the above conveyance path in a duplex print mode, thereby obviating the need of an exclusive switchback path for the duplex print mode. The apparatus is reduced in thickness despite the presence of the switchback path.

Abstract: A printer or copier and method for its operation includes two printing units in the paper path. The paper path is formed into two adjoining loops or rings and shunts are provided at intersections to selectively redirect the paper to permit single sided or double sided printing, printing in different colors or re-supplying the paper to a printing unit for a second pass. Papers can be turned over by selective control of the shunts and the conveying directions in the paper paths. Spacing of the sheets if controlled and pre-printed sheets may be selectively brought in to the paper flow.

Abstract: A double-sided printing device for paper handling is proposed by the invention to allow users to print on both sides of a sheet of paper. The double-sided printing device employs the interaction between the switches, the obstructing unit and the turning unit to allow a sheet of paper to enter the turning unit and be turned over so that its back side will be directed to the printing unit.

Abstract: In high speed reproduction apparatus in which closely spaced printed sheets are sequentially fed downstream in a sheet path at a process velocity, a dual inverter system of two independent but cooperative sheet inverters is sheet control gated to receive alternate sheets from the sheet path for inversion in the alternate independent sheet inverters. These dual alternate sheet inverters may advantageously operate at substantially the same sheet velocity as the connecting sheet path, instead of the much higher speed and acceleration/deceleration typical of conventional single inverter systems. This enables less critical higher speed cut sheet handling and thus more reliable faster printing. Yet collated sequential sheet order is maintained. This dual inverter system may be an integral part of a duplex path to provide inversion of sheets for duplex printing of their other sides.

Abstract: Images are formed in the S-D and D-D modes and sheets of recording paper after image formation are arranged in accordance with the order of pages. A document of an odd-numbered page placed on a paper feeding tray in a document transport part is fed to an image reading part and an image is read and stored into a RAM. Subsequently, a document of an even-numbered page is fed and an image is read. A sheet of recording paper housed in a paper feeding cassette is transported to an image forming part and the image is formed on one of the surfaces of the sheet of recording paper. Further, the sheet of recording paper is transported to a path, turned upside down, and transported again to the image forming part. The image stored in the RAM is read out and formed on the other surface of the sheet of recording paper. Finally, the sheet of recording paper is transported with the other surface facing downward and ejected to an output tray.

Abstract: The disclosed embodiments are directed to a method and apparatus for duplex imaging in a tandem print engine system. The features of the disclosed embodiments include imaging a first side of a sheet in a first marking module in the system, inverting the sheet, and imaging a second side of the sheet in a second marking module in the system one pitch after N revolutions of a photoreceptor following the first side imaging.

Abstract: A job ordering system for an image-forming machine that transfers an image onto a sheet at essentially the same time in which an inserter places an inserted sheet into a sheet output path. The image-forming machine has image-forming equipment, a sheet output path, and an inserter. The image-forming equipment transfers an image onto a sheet and provides the sheet to the sheet output path. The inserter places an inserted sheet onto the sheet output path at essentially the same time as the image-forming equipment transfers the image onto the sheet. One or more images may be transferred onto a plurality of sheets according to a sheet sequence for an image-forming job. One or more inserted sheets may be placed on the sheet output path at one or more inserted sheet positions.

Abstract: An image forming apparatus capable of duplex printing includes a door panel and a cover panel being connected for relative turning and facing each other for forming the printing paper circulation path so that one-side printed paper can re-enter an image forming engine for duplex printing; a printing paper transferring member being formed in a facing side of the door panel and the cover panel for transferring a printing paper to one direction; and an image forming apparatus capable of duplex printing constructed for more effective dealing with a jammed paper generated in a circulation path, wherein a modular duplex printing unit can be removable and attachable as needed, is formed and the duplex printing unit includes a power transmission device for transferring power generated in a driving unit of a main body.

Abstract: The disclosed embodiments are directed to duplex imaging in a tandem print engine system. The features of the disclosed embodiments include imaging a first side of a sheet in a first marking module in the system, inverting the sheet, and imaging a second side of the sheet in a second marking module in the system one pitch after N revolutions of a photoreceptor following the first side imaging.

Abstract: In high speed reproduction apparatus in which closely spaced printed sheets are sequentially fed downstream in a sheet path at a process velocity, a dual inverter system of two independent but cooperative sheet inverters is sheet control gated to receive alternate sheets from the sheet path for inversion in the alternate independent sheet inverters. These dual alternate sheet inverters may advantageously operate at substantially the same sheet velocity as the connecting sheet path, instead of the much higher speed and acceleration/deceleration typical of conventional single inverter systems. This enables less critical higher speed cut sheet handling and thus more reliable faster printing. Yet collated sequential sheet order is maintained. This dual inverter system may be an integral part of a duplex path to provide inversion of sheets for duplex printing of their other sides.

Abstract: A sheet supply device is formed of a sheet supply stacker, a supply path for guiding a sheet stacked on the sheet supply stacker, a sheet process portion situated in the supply path, and a switch-back path positioned on a downstream side of the sheet process portion. The switch-back path guides the sheet which has passed through the sheet process portion again to the supply path by switching back the sheet. The sheet having passed through the sheet process portion is ejected onto a sheet ejecting stacker. After a first supply of the sheet to the sheet process portion is made, the sheet is reversed by the switch-back path to make a second supply to the sheet process portion; the sheet having been subjected to the second supply is again reversed by the switch-back path to make a third supply to the sheet process portion, and then ejected onto the sheet ejecting stacker. A first supply of a next sheet to the sheet process portion is made between the second and third supplies of the preceding sheet.

Abstract: A printing apparatus has a desk-top printer housing having a paper input port, a paper output port and a data input port. A digital processor is disposed in the housing and is operatively connected to the data input port. The processor is programmed to detect odd pages and even pages in an electronically encoded document arriving via the data input port and to separate odd pages of the document from even pages thereof. A paper moving engine including rollers is disposed in the housing for moving a paper sheet through the printer housing from the paper input port to the paper output port along a predetermined path. A first laser printing assembly is disposed in the housing along one side of the path for printing an odd-numbered page of the document along one side of the paper sheet. A second laser printing assembly is disposed in the housing along an opposite side of the path for printing an even-numbered page of the document along an opposite side of the paper sheet.

Abstract: A printing assembly comprises a first printer for printing documents encoded in computer generated signals and a second printer for printing documents encoded in computer generated signals, the documents including alphanumeric characters, charts and graphics. The printers are disposed one above the other and are connected in tandem to one another via a multiple-page continuous web of paper extending along a U- or C-shaped path from a paper output port of the first printer to a paper feed port of the second printer. A computer for generating a signal encoding a multiple page document is coupled via connection componentry to the printers for transmitting odd pages in encoded form to one of the printers and even pages to the other printer.

Abstract: A duplexing module that is attachable to a printer that has a simplex media-handling system. The duplexing module is used in conjunction with the simplex system to carry out the print media handling (flipping) that is required for duplex printing. The module includes a single drive roller and an entry guide. The printer feed roller moves the printed media sheet along the entry guide to the drive roller of the duplexing module. The duplexing module includes an exit guide that extends between the drive roller and the feed roller. The print media (having one side printed) moves with the rotated drive roller until it reaches the exit guide. The printed side of the print media is thus directed against the feed roller of the printer so that the opposite side of the media is presented for printing.

Abstract: Duplex printing apparatus for printing on two sides of a sheet, the apparatus including: an expression roller on which the sheet is held during printing; a imager which prints an image on a first side of the sheet while it is being held on the impression roller; and a sheet inverter which removes the sheet from the impression roller, inverts the sheet and returns it to the impression roller for printing on a second side of the sheet by imager, wherein the sheet it to held on said impression roller referenced to a first edge thereof during the printing of the first side thereof and is also held on the impression roller referenced to said first edge during printing of the second side thereof.

Abstract: An image forming apparatus operable in a duplex image transfer mode of the present invention stores image data to be transferred and transfers the image data to a recording medium at an image forming section. In the duplex image transfer mode, a reversing section reverses a paper sheet or similar recording medium passed the image forming section and again delivers it to the image forming section. When image data does not have to be transferred to the rear side of the last paper sheet, the last paper sheet carrying an image on its front side is driven out of the apparatus from the halfway point of a reversal path via an outlet path without the intermediary of the image forming section. The apparatus successfully reduces the conveying time.

Abstract: A reverse feeding apparatus for switching back and feeding a sheet, includes at least one feeding roller positioned for feeding a sheet in a first direction from an upstream path to a downstream path; a reverse feeding roller located at the downstream path and positioned for feeding a sheet in a second direction that is different from the first direction; at least one branch nail movably mounted adjacent the feeding roller; at least one guiding nail movably mounted adjacent the feeding roller, wherein a tip of the branch nail and a tip of the guiding nail are positionable to overlap the feeding roller when the sheet is not being fed in the first direction by the feeding roller, a branch nail pressing device which presses the branch nail to the position overlapping the feeding roller to increase friction between a sheet being fed in the first direction and the feeding roller; and a guiding nail pressing device which presses the guiding nail to the position overlapping the feeding roller to permit a front end o

Abstract: An exposure apparatus comprises mask support portions, which support photo masks each having an exposure pattern thereon for movement between an exposure position in which the masks are in contact with a to-be-exposed object and a separate position in which the masks are kept off the object. Exposure light sources are used to expose the to-be-exposed object through the photo masks that are located in the exposure position. A clean air supplier runs clean air from a first supply portion into regions between the to-be-exposed object and the photo masks to prevent penetration of foreign substances when the photo masks are moved to the separate position. When the photo masks are moved to the exposure position, the supplier feeds clean air from a second supply portion onto the respective outer surfaces of the photo masks, thereby cooling the photo masks.

Abstract: A triplex printing system has three electrographic printer devices which enables both-sided, exactly registered printing of a paper web. For this purpose, the front side is printed in a first printer, the backside is printed in a second printer and the backside is printed again superimposed in a third printer. As a result of the arrangement of two printer chains having six printers, the structuring of a variable printing system adjustable dependent on function having a plurality of printer lanes is possible.

Abstract: A method and apparatus for duplex copying providing enhanced time to first copy is disclosed. The apparatus includes a scanner, a printer having a duplexer, and an information pipeline configured to process a data stream representing the image of page sides of the original document to be printed onto a single page of the copy product. The copier includes a processor , a computer readable memory, and a print element. The processor is configured to deliver the first two page sides of the original document to the printer for printing prior to the scanning of all subsequent pages of the original document.

Abstract: In a printer with a print engine having simplex and duplex sheet printing functions, and simplex and duplex sheet feeding paths, and at least one sheet output path, a plural function module is mounted on top of the print engine. This plural function module provides a document handling unit for feeding original documents to be imaged, and also provides a reversible sheet feeding path operatively communicating with the duplex sheet feeding path of the print engine to provide a space savings printed sheet reversing chute which is outside of the print engine for the duplex printing function. This reversible sheet feeding path in the module is alternately operable unidirectionally to provide an arcuate, inverting, sheet output path to a sheet output stacking tray which may be located on top of the plural function module.