Abstract: A method and apparatus improving the use of a book edge copier, in which for book edge copying, a control selection is provided so that for every other copy made, the copying process is altered to invert the copy to produce a set of copies with the same top to bottom alignment.

Abstract: A book copying machine comprises a housing covered with a movable exposure glass at the top and having set therein a microprocessor, a copying camera system, a carbon powder feeding and image setting device, a paper turn-over device and a return delivery device. The movable exposure glass comprises a transverse wedge portion in the middle which can be driven to displace by a driving device so as to fit the surface curvature of the fold of a book. Through the control of the microprocessor to coordinate the parts of the machine, page editing is simply achieved by piling up the duplicated sheets of paper which are folded up respectively.

Abstract: A copying machine with an ADF has a "two-in-one mode" which is a function to copy images of two sheets of a document set side by side on the platen on a surface of a copy paper with a single scanning process. As document sheets are stored on the document tray facing down, the last page of the document is copied first and the first page of the document is copied last. In the case that odd numbers of document sheets are copied, a blank page interrupts between page 1 and page 2 when the copied papers are bound into a book. This invention provides a copying machine by which a user can select the position of the copied image of the first page or the last sheet of a document on a copy paper.

Abstract: Full pages of books may be photocopied without damage to the book bindings by placing the open book on a wedge of fiber optics perpendicularly aligned to the copier platen to optically couple the photocopier to the book pages.

Abstract: A photocopier for books has a casing on whose top surface is mounted a platten. The platten is set back from the front of the casing, and it extends to a downwardly inclined support surface adapted to support the half of an opened book whose other half is to be copied. In a modification of the copier a step or recess is formed between the platten and the support surface, to enable the sloping part of the book adjacent to its spine to extend or splay outwards, thereby avoiding damage to the spine.

Abstract: An imaging system which uses a right-to-left scanning operation is enabled by first detecting by an optical sensor the right hand edge of a document to be copied, the left edge of the document being registered at the left edge of the platen. The scanning operation is initiated at the detected right hand edge and proceeds to the left. The end of scan coincides with the left registration edge. Book copying is enabled by adding a sloping left edge to the platen placing the book to be copied over the edge corner. The optical system is rotated for a book copy mode so that light penetrating the binding area is transmitted along the optical path. This arrangement allows required pre-scan excursion to take place in the space to the right of the start of scan position, thus avoiding interference with the sloping book edge.

Abstract: The invention provides an image forming apparatus capable of performing an ordinary copy mode, whereby the entire surface of a document is scanned by an image reader to copy the entire surface on a copy sheet, and a serial page copy mode, whereby first and second half portions of the document are separately scanned to copy each half portion on a separate copy sheet. In the apparatus, copy sheets of different sizes are fed from a plurality of cassettes each storing a copy sheet of a predetermined size or a manual feed tray. There is provided a memory for memorizing a serial copy sheet size to be fed from the manual feed tray. When the serial page copy mode is selected in the manual feed mode, the image reader is controlled to separately scan the first and second half portions of the document on the basis of the serial copy sheet size.

Abstract: When a book copy mode is selected, a scanning system is set to a size corresponding to divided original areas. If an automatic paper selection function is being set, a size of paper used for copy is determined based on an input copying magnification and the thus set size for the scanning ssystem. Existence of paper of the determined size in a paper feed cassette is examined and if the paper exists, copy operation is performed. If it does not exist, a display of the paper size is caused to blink. In the book copying mode, the area size of one page of the book is manually designated by the operator, and this area designation parameter is used to set the projection magnification of the optical scanning system. On the other hand, if an automatic magnification selection function is being set, the copying magnification is determined based on an input paper size and the thus set size for the scanning system. Then, copy operation is performed by using the determined copying magnification.

Abstract: A mechanism for opening and closing an automatic document feeder comprising a body-side support portion having a post removably insertable into a mount cavity in the body of an apparatus, a feeder-side support portion biased upward by a coiled spring, a pivot pivotally movably supporting the feeder-side support portion on the body-side support portion, positioning means for determining the distance between the pivot and the body, and adjusting means for varying the distance determined by the positioning means.

Abstract: A book copying mode of operation is presented which utilizes a height detector device associated with the scan mechanism to obtain a series of output signals representing changes in the distance between the scan mirror and the book pages being copied. As the book page is characteristically tend to be lifted away from the platen towards the central spine area, a distance designated as .DELTA.z is formed between the platen and the book page. A profile of this changing distance .DELTA.z is captured and electronically stored in computer memory. A controller then processes the stored signal to provide compensating signals for the errors in the projected image resulting from the changing .DELTA.z. Thus, the angular misalignment of the object image plane is corrected by causing the scan mirror to pivot during scan so as to maintain the proper orientation vis-a-vis sloping book pages. Also, the change in object conjugate caused by the increase in .DELTA.

Abstract: An image recording apparatus capable of recording images of two opened pages of a book-type original on the front and back sides either of one record paper or of different record papers upon receipt of a single instruction. Image data representing a first page of two opened pages of the book-type original read by a first reading unit is supplied to a recording unit, and representing image data of a second page of the original reading by a second read unit can also be stored in a memory. The recording unit record images based on the first image data and third image data which was read and stored in the memory in a previous cycle.

Abstract: An automatic page-turning device for turning pages of a book or the like as placed in an opened condition to expose a first page to be turned at one side of a spine and a second page in a stack of turned pages at the opposite side of the spine, comprises a carrier drum having a perforated peripheral wall and being bodily movable from a first position opposing an outer edge portion of the first page of the opened book to a second position in which the carrier drum opposes an outer edge portion of the second page, a suction device by which a vacuum is applied to the interior of the carrier in its first position for causing adherence of the first page thereto and the transport of the first page with the carrier drum toward the second position, with the first page being isolated from the effect of the vacuum at a position of the carrier drum intermediate its first and second positions for releasing the first page from the carrier drum and permitting the reception of such released first page by a page guiding memb

Abstract: An original-holding cover for use in association with an image formation device comprising an upper unit and a lower unit, the upper unit being rotatably mounted on the lower unit so as to be opened and closed, which comprises a base part rotatably connected to an original platen of the upper unit and an original-holding part which is rotatably connected to the base part. When a thick original is duplicated, the entire surface of the original can be uniformly pressed irrespective of the thickness of the original with the original holding part held in a horizontal position by rotating both the base part and the original-holding part. Furthermore, the base part is removable from the original platen and there is provided a stopper means for preventing disconnection of the base part from the original platen due to the impact of opening the upper unit when dealing with a jam or other trouble.

Abstract: A copying apparatus capable of divisional copy mode for sheets in which two sheet documents are respectively positioned along two reference edges on a document platen and copy operations for each of documents are conducted on the basis of each of reference edges in response to one copy start instruction.

Abstract: An electrophotographic copying apparatus comprises an image forming unit for forming an image of an original to be copied, and a developing device for transferring the image onto copy paper, the image forming unit including a scorotron charger for representing only outlines of the original image. When the original is copied with a cover being not placed thereon, a shadow would be usually formed in an area corresponding to the portion not covered; however, the scorotron charger forms an outline image of this shadow and accordingly no shadow is formed in the area corresponding to the portion not covered.

Abstract: An image formation apparatus is operable in two different modes. The selection of a mode is made automatically, depending on the size of the document to be scanned. If the document is bulky like a book and is placed on a document table by opening an automatic document feeder or if it is or sheet-like but long and cannot be wrapped around a document winding cylinder, the optical system is moved to scan the document. If the document is sheet-like and sufficiently short, it is wrapped around the cylinder and is scanned by a stationary optical system while the cylinder is rotated.

Abstract: Electrostatographic apparatus for providing bound sheet sets suitable for folding. The sides of the sheet sets are staggered so that, upon folding, the edges become accurately aligned. Staggering is accomplished by progressively cutting the sheets shorter as they are to be positioned in the stack, and aligning the stacked sheets in a trapezoidal shape before stapling the sheets together. Aligning is accomplished by an inclined surface which makes an acute angle of approximately 32.degree. with the flat surface of the sheets. Movement of the images on the sheet is also provided to keep the outside borders on the various sheets equal.

Abstract: A hinge structure by which an upper unit of a housing can open and close with respect to its lower unit around its edge includes two elastic bars twisting around each other. The elastic forces of these bars are set according to the shearing stress applied to them. Contact pieces may be provided to vary their elastic forces when the units are assembled together. Screws may be further provided to vary the twisting angles of the bars to adjust their elastic forces.

Abstract: The invention relates to a recirculating feeding apparatus for moving an original from a tray through an exposure position to the tray. The apparatus comprises a transparent member movable through the exposure position, a recirculating path, a driving assembly, and a retracting assembly for retracting a portion of the recirculating path from the transparent member. In the recirculating path, a sheet original is fed from a tray to the exposure position of the transparent member and to the tray. For a thick original, the driving assembly moves the transparent member across the exposure position.

Abstract: An automatic image-density control system for photo-copying the page-to-page content of an open book, in which optimum values (of exposure or development bias) needed for precisely copying the page-to-page content are initially established by performing either continuous pre-scanning of both pages of an open book or pre-scanning of the second page after completing photo-copying of the first page, and then, based on the optimum values thus established in conjunction with the first page content, photo-copying operation for the first page content is executed, and then, based on the optimum values established for the second-page content, photo-copying operation is sequentially executed for the second-page content.

Abstract: A specific cassette selection apparatus for use with a copying machine having a plurality of removable paper feeding cassettes. The apparatus includes an identification device, a specific copying mode selection device, and a paper feeding cassette selection device. The cassette selection device responds to paper-size identification signals from the identification device and a copying mode selection signal from the mode selection device to select a cassette for use in a selected copying mode. When either a two-sided copying mode or a continuous copying mode is selected, the paper feeding cassette selection device selects a specific paper feeding cassette containing copying paper of only a specific paper size associated with the two-sided copying and/or the continuous copying modes.

Abstract: An electrophotographic copying machine having an editorial function includes an original table formed on the top surface of a main unit, and an original is placed thereon while facing upward. A shaft is installed in the vicinity of one end of the top surface of the main unit, and this shaft supports rotatably an optical system for scanning the original so as to be able to contact with or part from the original table. A transparent tablet is placed between the original and the optical system, and this table works in cooperation with a write pen. After placing the original, an operator puts the tablet thereon and operates the pen to specify the position of the original intended to be edited. Responsively, the positional data thereof is outputted from the tablet. In a trimming mode or a masking mode, LEDs constituting a partial eraser are lighted in response to the positional data, and an electrostatic latent image on a photosensitive drum is modified.

Abstract: A copying machine capable of operating in the divisional copying mode in which first and second documents, such as the successive pages of an open book, placed on the contact glass are copied on different recording medium surfaces, respectively. The copying machine is provided with copying condition setting means capable of individually setting different copying conditions, such as copied image density, for the first and second documents, respectively. The first document and the second document are scanned under the copying condition set for the first document and under the copying condition set for the second document, respectively, and the first and second documents are copied on different recording medium surfaces, respectively.

Abstract: An image forming apparatus is disclosed that provides dual-page copies of a document that are free of offset. The apparatus includes a fixed scale that provides a scanning start position for the first page of the document, and a movable scale that provides a scanning end position for the second page of the document. The document is placed on a document table with a first edge of the document positioned with respect to the fixed scale. An operator controls the positioning of the movable scale to indicate the second edge of the document. The copy operation is controlled based on a prescribed range for the pages of the document that is defined by the position of the fixed and movable scales.

Abstract: An electrophotographic printing machine in which two original documents are supported on the platen of an exposure station. Both original documents are flash illuminated to record an electrostatic latent image on a photoconductive surface. One-half of the electrostatic latent image is erased. In this way, one of the original documents is reproduced on a copy sheet. During the next successive machine cycle, a second electrostatic latent image corresponding to both original documents is recorded on the photoconductive member. The other half of the electrostatic latent image is erased and a copy formed corresponding to the other original document.

Abstract: In a scanning type copying machine of the present invention, a scanner scans divided regions of a document prior to real copy operation when a dividing copy mode is selected by a book copy mode selection key. Density control data in the respective divided regions are stored in memory and an exposure lamp is controlled by a MPU so that a copy of an appropriate density can be formed according to the stored density control data. Thus, without being unfavorably influenced by a difference of the densities in the divided regions of the document, copies of appropriate densities can always be obtained.

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: An arrangement for transporting a book facedown onto an and off of a copier includes a platen transport and a belt transport positioned on opposite sides of a vacuum plenum that is used to peel the bottommost page from a book to turn the same as the book is moved back and forth between the transport platen and belt member. As the book moves the vacuum plenum a by predetermined amount, it contacts a roller and is supported on the roller as it is transported onto and off of the platen by the platen transport. The roller reduces the friction between the pages of the book and the platen.

Abstract: An original reading apparatus capable of scanning separately a first area and a second area of an original to be reproduced, includes an original supporting table for supporting thereon an original having the first area and the second area; a scanner for optically scanning the original placed on the original supporting table, wherein the first area and the second area is in series in a direction of a scan of the scanner; driver for driving the scanner selectively in a first mode wherein the scanner first scans the first area of the original and automatically and sequentially scans the second area of the original and in a second mode wherein the scanner first scans the second area of the original and automatically and sequentially scans the first area of the original; and a selector for selecting one from the first mode and the second mode.

Abstract: An image recording apparatus includes a rotatable transfer member and a plurality of latent image bearing members which are in rolling press-contact with the transfer member at different positions. Around the latent image bearing members, are provided latent image forming devices and devices for developing the latent image. The developed images formed on the respective latent image bearing members are transferred by pressure onto a recording material or onto the transfer member at the respective nips formed between the transfer member and one of the latent image bearing members. With this apparatus, duplex image recording, overprint or superimposing recording, and/or high speed recording can be accomplished.

Abstract: A copier for duplex copying in which blank sheets are fed from a copy sheet tray (41) to a photoreceptor (11) to receive a first image on one side and the simplex copy sheets so formed are conveyed to a duplex buffer tray (43) from which they are refed to the photoreceptor to receive a second image on the other side. The buffer tray (43) is arranged so that the simplex sheets are inserted into it lead edge first in the same direction (right-to-left) in the drawing in which they leave the photoreceptor and are refed trail edge first along a folded path between the buffer tray and the photoreceptor so that the sheets are inverted once between the buffer tray and the photoreceptor. As illustrated the buffer tray (43) is arranged beneath the photoreceptor and the copy tray (41) is arranged beneath the buffer tray (43). A double folded path (55) for returning simplex sheets to the buffer tray is provided between the photoreceptor and the buffer tray.

Abstract: An arrangement for turning pages of a facedown booklet for use with a copier. A rotating vacuum roll located between two platens peel pages from the book as the book is moved back and forth between the two platens. As the book moves over the vacuum roll, an air knife fluffs the pages and the page adjacent the vacuum roll is captured by the vacuum roll. As the book spine passes through the region between the platens, the vacuum roll reverses and with assistance from the air knife presses the captured pages against the other half of the book.

Abstract: A copying apparatus wherein a document consisting of a first half side and a second half side can be scanned by a scanning member independently corresponding to the area of the first and second half sides. These copies are formed on the both sides of a copy paper or on two different copy papers selectively.

Abstract: A photocopying device which is to be attached to a conventional photocopying machine, gives to the machine the capability of copying from bound books. The device has a V-shaped book rest for supporting a book in an open condition and a scanning head with a light source. The device can be mounted on a photocopying machine so that light from the scanning head is reflected from a page of the book back to the drum of the photocopying machine, along the same route as is taken by light travelling to the drum during conventional operation, without the device.

Abstract: A device to translationally pass a document having multiple sheets on a copier comprises an adapter element for placement on the portion of the copier housing the picture taking assembly, the adapter comprising a longitudinal plate and a transverse portion extending transversely from the longitudinal plate. The transverse portion has a longitudinal cross-section of substantially triangular outline for forming a planar surface with the portion of the copier housing the picture taking assembly. A longitudinal slide bar is positioned above and extends the length of the longitudinal plate and the transverse portion. A transparent plate bears the document to be carried and includes on one edge thereof means for slideably engaging the slide bar, whereby the bottom of the transparent plate can engage the lower drive apparatus of the copier and be driven thereby over the picture-taking assembly.

Abstract: A document carrier, typically for supporting a book to be copied in a document copier by location of an opened page against an inclined window in a scanner housing, which carrier comprises a pair of separate plates (26, 28) supported in a trough-like configuration by arms (27, 29) which connect the backs of the plates to a movable platform (30), springs (31, 33) being provided, preferably to act between the platform and the supporting arms, to urge the plates into their said trough-like configuration (FIG. 2).

Abstract: A document scanner includes a wedge-shaped scanner housing (16, 18), vertically movable on a main housing (10) to locate an inclined scanned window against a document resting on a trough-like document support (14) beneath the scanner housing. The scanner housing is manually movable up and down for location against and removal from a document to be copied, and counterbalancing means are provided within the main housing to facilitate such vertical housing movement.

Abstract: An electrophotographic copying machine comprises an upper body, a lower body, a torsion bar for lifting the first body upward, and a spacer for controlling the stressing force of the torsion bar. The spacer, preferably, a wedge is forced between a crank and a crank stopper of the torsion bar. A thumbscrew is further provided for controlling to force the spacer between the crank and the crank stopper.

Abstract: A spread document copying method for a copier having a variable magnification copying function is disclosed. In order to adequately copy right and left faces of a spread document even when magnifications other than a 1 magnification is selected, one of the two faces is imaged starting at a position associated with a value which is provided by dividing the length of copy sheets by the selected magnification.

Abstract: The present invention relates to an original holding plate hinging mechanism for a copying machine, a printing machine or the like. When a thick solid original, such as a book, needs to be covered with an original holding plate, the pivotal point of the original holding plate is raised so that the original holding plate is placed practically horizontally on the thick solid original when closed. The original holding plate hinging mechanism comprises a supporting member attached rotatably to a member of the copying machine, an original holding plate joined at the rear end thereof to the free end of the supporting member so as to turn relatively to the supporting member, and a resilient means interlocked with both a member of the copying machine and the supporting member to control the torque for turning the supporting member.

Abstract: A document copier for producing photocopies from a book or equivalent bound volume, wherein a scanner housing (16) has a wedge-shaped surface with a window (18) in one face, and is mounted above a V-shaped book support (20) with provision for vertical relative movement therebetween so that a page of an open book on the book support can be located against the window. The scanner within the housing is movable to relay strip images via an optical system including reflector devices and a lens onto a photo-sensitive surface moved in synchrony with the scanner, the optical path length being kept constant (FIG. 1).

Abstract: A document scanner for scanning a page of a book which includes:1. a movable housing having at least one flat face containing a window through which light from a document to be copied can pass.2. a scanner within the housing adapted to scan an image of the document to generate an electrical video signal corresponding to the information carried by the document,3. means for supporting a book face upwards so that the book can be moved into contact with the window,4. a pivoting joint between the housing and a support therefor to permit rotation of the housing into at least one other position in which the window is unobstructed and light from a remote document can be directed therethrough to form the image to be scanned.

Abstract: An original conveying apparatus includes a follower roller unit which is moved to its deployed position to define an extension of an original conveying path over the upper surface of the copying machine when a book carrier is used in order to convey an original having substantial thickness. A follower roller holding member is disposed within the unit and moves in interlocked relationship with the movement of the unit to its deployed position so as to maintain the follower roller in its position projecting above an original guide surface when the unit is moved to its deployed position.

Abstract: A character reader is provided in the form of a plate having a light source and a photoconductive layer on either side of the light source. The photoconductive layers may be provided with optical plates and transparent covers, if desired. In use, the device may simultaneously read data from two sheets or pages of a book, for example. Also, the photoconductive layer may be formed on only one side of the light source in a configuration where there are provided two light sources and photoconductive layers which are hinged together so that they may be folded to confront one another with an original therebetween.

Abstract: An original-holding mechanism for an original-support device is disclosed which includes a flexible holding member for covering an original document placed on a transparent plate and a rigid supporting member located outwardly of the original-holding member. One end edge portion of the original-holding member is mounted adjacent to one end edge of the transparent plate. The base portion of the supporting member is mounted for pivotal movement about an axis extending along said one edge of the transparent plate as a center. The free end edge portion of the original-holding member is connected to the free end portion of the supporting member for movement over a predetermined range in a direction perpendicular to said axis.

Abstract: The utility of a document exposing system for a copying machine that has a separate exposure platen for bulky documents with a cover containing a transport mechanism, is improved by providing for the platen cover to swing up and away from the platen by being pivoted on a horizontal hinge axis that is remote the rear edge of the platen and by providing for the single sheet document feeder to pivot away from the side of the platen by turning about a vertical axis located behind the back edge of the platen. Thus, an open, unobstructed volume over and at the side of the platen is provided whereby pages of extremely large bound volumes may be copied.

Abstract: A hinge link connecting a cover to an office copier machine is completely enclosed by the cover when the cover is swung down in a closed position on the copier machine. One edge of the hinge link is connected to the top of the copier machine by a first pivotal joint and an opposed edge of the hinge link is connected to the cover by a second pivotal joint. The two pivotal joints permit the cover to be swung open around the first pivotal joint and enable the cover to be disposed substantially parallel to the copier top to accommodate articles of varying thickness placed between a platen on the top of the copier and the cover. The hinge link may be planar or it may be angular. In the latter case, the short leg of the angle is substantially the height of the cover with the other leg having a length greater than the short leg to permit the hinge link to be totally enclosed within the chamber of the cover and to enable the cover to be disposed spaced from the copier top.

Abstract: In a copying apparatus having an original-supporting surface capable of supporting thereon a thick original and a sheet-original exposure and transport portion, the original-supporting surface and the exposure surface of the sheet-original exposure and transport portion are formed separately and independently of each other or formed integrally with each other. The apparatus further includes an optical system for directing the image of an original to a photosensitive medium, and various copying process means. When an original on the original-supporting surface is to be copied, the optical system scans the original while moving along the original-supporting surface. When a sheet original is to be copied, the optical system is fixed to correspond to the exposure surface spaced apart from the original-supporting surface and the sheet original is passed through the sheet-original transport portion for scanning.

Abstract: A conveyor unit for a book carrier includes a book carrier on which an original having substantial thickness such as a book is placed, and conveys it to an exposure station in order to form an electrostatic latent image of the original in a copying machine. A driven member in the form of a rack is formed on the book carrier, and is driven by a drive member in the form of a pinion which is provided on the part of the copying machine. Elements are provided to maintain such drive relationship. In this manner, a book carrier is positively and reliably conveyed.

Abstract: An electrophotographic apparatus for printing or forming at least one copy of a manuscript comprising a manuscript feed mechanism including upper and lower side feed mechanisms arranged above and below a rectilinear manuscript feed path including a slit light exposure portion at which a manuscript image is projected onto a photosensitive drum, said upper side feed mechanism being movable with respect to said slit light exposure portion to define thin and thick manuscript feed paths, respectively. A thick manuscript feed mechanism is provided in the lower side feed mechanism for feeding a thick manuscript carriage made of transparent plate. The apparatus further comprises a first movable edge guide for positioning an edge of a sheet manuscript and a second fixedly arranged guide for positioning the edge of the thick manuscript carriage. The first guide is preferably positioned inwardly with respect to the second guide viewed in a widthwise direction of the manuscript.