Abstract: A dual purpose cassette is disclosed that allows the feeding of sheets in either a short edge or long edge direction. The cassette has openings on the short edge and long edge of its base and side portions so that depending on which direction the cassette is inserted into the machine sheets can be fed in the longitudinal or lateral directions.

Abstract: A compact, inexpensive paper detack device has a detack claw mounted to the bottom of a cleaning assembly has a rotatably mounted shaft supporting the detack claw, a pair of shaft support members extending downward from the cleaning housing each having a recess in its lower corner adjacent the imaging member for supporting the shaft and at least one elastic support member extending downward from the cleaning assembly in cooperative association with the pair of shaft support members pressing the shaft into the recess. The elastic support member has a tip bent forward toward the shaft forming a bearing space between the recess and the tip smaller than the diameter of the shaft to provide a snap fit for the shaft on insertion into the bearing between the recess and the elastic support member. The detack claw has an elastomeric tip and the angle between the bottom of the claw and the tangent at the contact point between the detack claw and the drum is between 120.degree. and about 140.degree..

Abstract: A toner fill sensor for a toner recovery device with a recovery box into which residual toner is scraped from the latent image carrying member with a cleaning means, has a window comprising a transparent or translucent housing projecting upwardly through said recovery box; an optical sensor having a light emitting and receiving elements arranged across said projected housing; a flat float member vertically movable on top of the toner recovered in the recovery box; and a light shielding flag erected on said float member at the position corresponding to the projected housing so that as the level of toner recovered rises, the light shield of the float member blocks the light path of the optical sensor, providing a toner fill signal.

Abstract: A sheet sorter apparatus is disclosed as having a basic sorter unit comprising a horizontal transport, a vertical transport, and a plurality of sorter bins wherein the vertical transport has a pair of bin indexing guide elements, one of which is arranged to index sheets into the bins sequentially, while the other element is arranged to index sheets to a second sorter unit containing only a plurality of bins thereby allowing the use of additional bins without added transport structure.

Abstract: An electrophotographic light-sensitive member comprising a conductive support, a photoconductive layer and a protective outer layer, the protective outer layer comprising at least one particulate metal oxide having a mean particle size below about 0.3 .mu.m dispersed in an organic resin binder material. The electrophotographic light-sensitive member may be prepared by initially forming the protective outer layer and thereafter applying the photoconductive layer and conductive support thereto.

Abstract: A cleaning device on an electrophotographic copier uses a toner transport device having a housing with a toner transport device inside and electrode means integral with the periphery of the housing to generate electrostatic waves which affect the toner particles to preclude accumulation in the housing.

Abstract: A sheet feed mechanism is disclosed which will permit manual feed as well as automatic seriatim feeding. The mechanism includes a main feed roller movable into and out of contact with the top sheet of a stack, another feed roll above and in contact with the main roller and a pinch roller above and in contact with the other roller to form a nip through which a sheet may be manually guided for feeding.

Abstract: An electrophotographic photosensitive member comprising a conductive support, a charge generating layer overlying the conductive support and a charge transport layer overlying the generating layer, the charge transporting layer comprising an electrically inactive organic resin binder having dispersed therein inorganic n-type semiconductive particles having a mean particle size below about 0.1 .mu.m.

Abstract: An electrophotographic copying method and apparatus in which a powder image of an original document is transferred from the photoconductor to a receiving member. Thereafter, an electrostatic latent image of this transferred powder image is formed back onto the same photoconductor. The latent image is then developed and transferred to a copy sheet and fixed to produce a finished print. In a preferred embodiment, the transferred powder image is repeatedly utilized to form successive electrostatic latent images on the photoconductor. These electrostatic latent images are then developed to produce powder images which are subsequently transferred and fused to copy sheets forming a multiplicity of copies from the same original document.

Abstract: Heat and pressure fuser apparatus for fixing toner images to substrates passing through a nip formed between two pressure engaged roll structures, at least one of the roll structures being heated and contacting the toner images as the substrates pass through the nip. The apparatus being characterized by a heated fuser roll structure having a thin circumferential wall wherein reinforcing structure is provided internally thereof for rendering the thin circumferential wall sufficiently rigid to withstand the pressures to which it is subjected during fusing.

Abstract: A coated paper suitable for use in an electrophotographic process for receiving an image formed by a magnetic brush device with a single component developer is disclosed. The paper is coated with a composition made of a styrene/butadiene latex and a crosslinking agent for the latex, together with any desired pigment and nonionic emulsifier. The composition may be economically coated onto paper at an amount about 1 to 5 grams per square meter.

Abstract: An electrophotographic photosensitive body comprising a conductive support, a photoconductive layer thereon and a protective layer. The protective layer comprises a binder resin, an aromatic diamine and an organic halogen capable of producing a free halogen atom, such as iodoform, carbon tetraiodide, pentabromoethane, p-nitrotribromoacetophenone, trichloroacetophenone, tribromomethylphenylsulfone, bis(tribromomethyl)-sulfoxide, and p-bromobenzenedichlorosulfonamide.

Abstract: An electrostatic printing apparatus having a transfer medium with a charge retentive surface for forming an electrostatic latent image, and a developer to develop the electrostatic latent image on the transfer medium for transfer to a support material. An array of printing electrodes supported by a flexible insulator abutting the transfer medium are uniformly spaced from the transfer medium.

Abstract: A transfer sheet drying device for an electrophotographic copying machine which comprises a heating plate 2 having a plurality of narrow grooves 5 cut in a parallel direction with the copy sheet direction of movement, said heating plate 2 being provided as a transfer sheet transporting device disposed prior to a transferring station. A copy sheet keep member 6 rotatably provided on said heating plate 2 cooperates therewith to form an area through which the transfer sheet passes.

Abstract: A low cost original document handling apparatus for a copying machine for automatically discharging the original document from the platen after it has been copied. It is automatically driven for an electrically controlled time period by a helical spring drive system which automatically stores and subsequently utilizes the platen cover opening or closing force to eject documents and eliminate the cost and power consumption of a conventional electrically driven document drive system. It includes automatic over-winding protection. A dual function electromechanical release system automatically unlatches the platen cover after connecting the spring drive to eject the document.

Abstract: A selector circuit for use with a paper tray in a copy machine to determine the sizes of paper stored in the paper trays, compare the available sizes with the operator-selected size and enable the proper paper tray feed mechanisms to assure feeding the desired size paper.

Abstract: An apparatus for positioning an original in a reproducing machine characterized in that an original positioning member (registration edge) provided to one side of an original mounting table (i.e. transparent platen) is adapted for moving adjustment in the direction of scanning of an original. The adjustability of the registration edge provides a simple means for obtaining synchronization between copy paper feed and the scanning of the original.

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: Apparatus for selectively color marking successive copies produced in a copy machine to provide color-coded copies for routing or other identification purposes.

Abstract: A reproducing apparatus includes a blade cleaning system for removing residual material from an imaging surface. The blade is arranged for movement between a first position wherein an edge thereof engages the imaging surface to remove the residual material, and a second position wherein the edge is spaced from the imaging surface. Responsive to a movement of the blade to the second position a device is provided for removing residual material from the blade edge. A supply of lubricating agent is stored in a suitable container arranged above the device for cleaning the blade edge. A dispensing system is responsive to engagement between the blade and the blade edge cleaning device for dispensing a desired amount of lubricating agent onto the blade edge.