Abstract: A moving document copier machine with a hinged cover of a recirculating semiautomatic document feed device for pivoting away from the top surface of the machine to expose the document feed path and enable the copying of a book or like object. A spine or rail means is provided along one edge of the document feed path to receive the center break of an opened book. Roll means interior to the document feed path support that portion of the book to be copied as it moves across the viewing station while other rollers, exterior to the document feed path, support that portion of the book not to be copied. A gate is provided to register the book.

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: A copying machine includes a shutter mechanism comprising a light shield member which intercepts the incidence of extraneous light onto a photosensitive drum through an exposure window, and a detecting member which is operated by a cover which forms a conveyor unit for a sheet-shaped original or by a book carrier on which a thick original is placed. A movement of the light shield member into or out of an exposure light path is controlled by the operation of the detecting member.

Abstract: A document hold-down cover for a copy machine comprises a lifting means, a hinge means, a deck plate of said copy machine, a hold-down-cover, the lifting means is arranged between said deck plate and said hold-down cover, said hinge means is attached between said lifting means and said hold-down cover. According to the invention, when copying thick material which is put on the contacting glass for copying the closed-hold-down cover comes into parallel with the material on the glass since the lifting means is lifted by leverage. When the material is taken off the glass cover, the lifting means comes down or returns back to the first position by gravity. The hold-down cover can be opened and closed in both the first position and the lifting position.

Abstract: In an electrophotographic apparatus, a plurality of original sheets are copied onto a plurality of copy sheets in an order permitting assembly of multiple-sheet booklets. The originals are presented to an automatic document feeder by an operator in one order which repeatedly presents the originals to the copier for reproduction in another order. The copies are reduced in size and placed adjacent each other onto both sides of sheets of copy paper in a sequence facilitating booklet assembly. Initially the originals are loaded into the automatic document feeder with the lowest numbered original page presented to the copier first. Odd-numbered originals are copied onto successive halves of copy sheets. When half of the originals have been copied, the copies are reloaded into the copier to permit copying of odd-numbered originals onto halves of the backs of the same copies.

Abstract: A balanced photoconductor usage control system for an electrophotographic copier/printer machine having a photoconductor containing thereon two page images areas, is employed to solve the problem of excessively high background level due to toner filming. More specifically, the control system includes memory means for retaining a location of a last page image area which was last used to produce a page, and control means jointly responsive to a presence of a full page condition in a page buffer, and to the memory means to effect production of a next page on an alternate page image area.

Abstract: Disclosed is a xerographic copying apparatus 10, by means of which a variety of copying modes may be realized. So, the apparatus enables the simultaneous production of double sided copies from double sided originals, of double sided copies from two single sided originals, and of single sided copies from double sided originals. The apparatus is so designed that the relative order of the originals as well as of the copies is maintained and that no reversing of the originals is necessary after exposure. The apparatus is so designed that collated sets of copies are obtained, although it may also be set to make multiple copies of one original.

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: In successively copying a plurality of continuous pages of a book original by means of a copying apparatus adapted to print images of the pages on opposite surfaces of each copy sheet, a printing operation is controlled in such a manner that a series of processes including, illumination of the pages, charging and exposing of a photosensitive drum, developing, fixing and transfer printing of visible images, and ejection of printed copy sheets is automatically performed, if the book original is opened at desired pages and placed on an original placing glass plate of the copying apparatus in a normal condition in which the top of the book original is remote from the operator.

Abstract: Photo Graphic-Plane is a system that will facilitate the photographic process. It is a pneumatic device designed to support books and volumes at a level plane with minimum curvature of the surface while being microfilmed or photo-copied. This objective is accomplished thru air displacement from one collapsible and inflatable container under one cover of the volume thru a by-pass tube and control valve into another collapsible and inflatable container under the other cover of the volume. The result is an automatic leveling effect as pages are turned, causing an inverse shift of weight which in turn causes air displacement and the leveling process. A transparent cover is provided for the surface being photographed to enhance the leveling of the volume while reducing the surface curvature to near zero.

Abstract: Methods of and apparatus for photographing pages of a book, which is stitched and bound so as to form a seam separating adjacent sequential pages, enable one to photograph the book on a strip of film with the pages sequentially ordered and oriented in the same direction. Essentially, the apparatus for practicing the method includes a camera which is mounted on a housing that has a hollow member with an aperture or opening that fits over a single page of the book. The camera is mounted for rotation relative to the housing so that after one page is photographed, the camera may be rotated 180.degree. to maintain the orientation of the film strip in the same direction as the first page when the housing and book are rotated relative to one another through 180.degree. to register a subsequent page with the housing. Rotation of the housing and book relative to one another may be accomplished by holding the housing still and rotating the book 180.degree. or by holding the book still and rotating the housing 180.

Abstract: Self-positioning apparatus for a platen covering device is provided for a copier of the type which includes a platen, instrumentalities for flash illuminating a document placed by an operator on the platen, and a platen covering device such as a document feeder or a flat, opaque sheet of material or the like. The apparatus includes a linkage assembly for movably supporting the platen covering device; a manually releasable latch for holding the covering device at a predetermined position for holding respective documents of minimal thickness in contact with the platen; and resilient means including at least one torsion bar for urging the covering device away from said predetermined position, when said latch is released, for holding respective documents of greater thickness in contact with said platen.

Abstract: A device for uniformly aligning each of a series of microform cards with a projected test pattern, including means for moving a card relative to said test pattern, and means for perforating the card while aligned.

Abstract: Paged material stored on microform cards is reproduced with uniform page print margins on hard copy using an office microprint copier. Each card in a series is aligned with a test pattern and then perforated while aligned. The perforated cards are placed in turn on a microfiche holder for the copier having raised pins to fit the perforations. The microformed paged material is then reproduced by the copier in blown-up size in a desired sequence.

Abstract: A cover device for pressing originals having different thicknesses with equal force against a glass exposure plate of photocopying apparatus comprises a bordering frame swingable between closed and open positions and, inside the frame, a platelike covering member which rests upon supporting elements of the frame when the frame is in open position, presses down upon an original on the exposure plate yet is displaced according to the thickness of the original as the frame is moved to closed position, and is guided from displaced positions to rest again upon said supporting elements as the frame is moved from closed to open position.

Abstract: Disclosed is a movable copy board for photographic reproduction apparatus, comprising a movable document supporting frame member, a transparent plate member mounted in the frame for the accommodation of originals, an adjustable auxiliary support element being arranged for movement laterally coplanar with respect to the frame member, and means for rigidly securing the auxiliary support member in either of at least two positions to support oversize or bound materials with respect to the frame and to isolate the documents to be copied from fixed adjacent structure of the reproduction apparatus. The securing means for the auxiliary surface comprise rigid, laterally extending rod elements that move in rod guides in the frame member relative to the frame member.

Abstract: A cover arranged to hold an original document in the platen of an electrophotographic printing machine. The cover includes an outer member defining a chamber with an inner member being mounted therein. The outer member cooperates with the platen to form a light-tight seal while the inner member presses the original document thereagainst.

Abstract: The illumination station of a photocopier is arranged with a downwardly facing transparent platen to which the originals are presented for copying. There is an original support platen opposed to and beneath the transparent platen which can be raised and lowered to present to the transparent platen three-dimensional originals, such as books, of varying thicknesses. The upper surface of the original support platen incorporates a transport by means of which originals of the sheet type may be fed seriatim into the illumination station when the original support platen is in its uppermost position.