Abstract: A toner having a good chargeability stable against an environmental change is formed of toner particles each comprising at least a binder resin, a colorant, a release agent and a sulfur-containing polymer, and an external additive. The toner particles contain 100 to 30,000 ppm by weight thereof of at least one stabilizer element selected from the group consisting of magnesium, calcium, barium, zinc, aluminum and phosphorus. The toner particles may preferably be produced by suspension polymerization of a monomer composition containing the sulfur-containing polymer in an aqueous medium containing a dispersion stabilizer having the stabilizer element.

Abstract: A scanning device is provided which includes a casing for a chassis to be slidably installed therein. The chassis is mounted with a circuit board having a photoelectric transforming element for performing image scanning and a plurality of switching elements for activating the photoelectric transforming element. The switching elements are capable of being cooperative with a plurality of push-keys installed on the casing, at the time the chassis is positioned at a position where the switching elements are in contact with the push-keys, allowing the switching elements to be pressed by the push-keys when the push-keys are pressed by an external force.

Abstract: The image forming apparatus and method subject image data to predetermined image processing to obtain processed image data and execute both of outputting a print according to the processed image data and outputting the processed image data to an image file. The apparatus and method create information for identifying an original before an image of the original is read to input the image data and storing the original identifying information in a data base in relation to the image file, read out, when a reprint is requested by designating the original identifying information, predetermined processed image data from the image file of the data base based on the original identifying information and output the print according to the predetermined processed image data. As a result, the apparatus and method are capable of easily designating a corresponding image file when a reprint is requested and capable of easily outputting the reprint from the image file without the need of an original film.

Abstract: A multi-column electron beam inspection system is disclosed herein. The system is designed for electron beam inspection of semiconductor wafers with throughput high enough for in-line use. The system includes field emission electron sources, electrostatic electron optical columns, a wafer stage with six degrees of freedom of movement, and image storage and processing systems capable of handling multiple simultaneous image data streams. Each electron optical column is enhanced with an electron gun with redundant field emission sources, a voltage contrast plate to allow voltage contrast imaging of wafers, and an electron optical design for high efficiency secondary electron collection.

Abstract: A device manufacturing apparatus includes data acquiring means for acquiring two or more types of fluctuation information on fluctuation in optical characteristics of a projection optical system in the device manufacturing apparatus, adjusting means for adjusting the optical characteristics of the projection optical system, and arithmetic operation means for calculating an adjustment amount, to be instructed to the adjusting means, on the basis of a change characteristic model formula of the optical characteristics and data obtained by the data acquiring means. Only a small part of two or more types of fluctuation information is actually measured, and the other fluctuation information is obtained by arithmetic operation using the actual measurement value, or by looking up a table.

Abstract: Mirror substrate of crystal, especially silicon crystal, on which an amorphous layer, especially a quartz glass layer, is applied.

Abstract: A sheet postprocessing apparatus includes a magazine unit and a clincher unit. The magazine unit has a driver which is vertically movable relative to a magazine for storing staple sheets. The clincher unit has a clincher holder, a driving mechanism for vertically moving the clincher holder, and a driving source of the driving mechanism. The magazine unit and the clincher unit are disposed vertically opposite to each other. In the sheet postprocessing apparatus, a material to be stapled is inserted between the magazine unit and the clincher unit. The clincher holder of the clincher unit is moved closer to the magazine unit by using the driving source so that a staple may be passed through the material and bent.

Abstract: A silicone copolymer for use in an electrophotographic process is disclosed. This composition includes a specifically-defined heat-stable silicone oil-silicone wax copolymer. The copolymer has a melting point such that it is liquid on the hot fuser roll, but solidifies at room temperature on the printed page. A random silicone copolymer, in the form of a paste or pliable caulk, which is useful for sealing leaks in toner cartridges is also disclosed. Finally, the method for preparing these copolymers is disclosed.

Abstract: A system for producing non-copyable prints. In a xerographic printer, text is printed using clear toner. Thus, the only optical difference between toner and non-toner portions of the page is in the reflectivity. The plastic toner will reflect more light than the paper. A human reader can now read the image by holding the page at such an angle that the eye will intercept the reflected light from the toner, producing a contrast between the lighter appearing toner and the darker appearing paper. However, a copier scanner is always set up to avoid reflected light, by supplying light at an oblique angle and reading at a right angle. In this case the diffused light is approximately equal for both toned and untoned surfaces, the scanner will detect no difference and the copier will not be able to copy the original.

Abstract: An object of the present invention is to provide an image processing apparatus and an image processing method both offering a high-precision and general-purpose capability of identifying an image and performing appropriate processing depending on whether identification is effected. In the image processing apparatus and image processing method, image data is detected in visible and invisible light reflected from each of a target pixel and surrounding pixels. Based on the image data detected in visible and invisible light, a specific pattern is identified. The specific pattern appears substantially the same in color as a surrounding area under visible light but different in characteristic therefrom under invisible light, which is identified using the image data of the target pixel and surrounding pixels provided by a detector. The image processing apparatus is controlled depending on whether the identification is effected.

Abstract: A photocopy count system and method which records usage information for accounting and billing purposes. The photocopy tracking system comprises a plurality of remote mini-terminals, a multiport serial board, and a central control computer. Billing identifier information entered at a remote mini-terminal is received at the central control computer where it is processed for verification of validity. If the billing information is valid, the central control computer generates a copier enable signal which is received at the remote mini-terminal to enable the associated photocopier. As each photocopy event occurs, the copy signal is detected by the central control computer. When copying is completed, the copy count and associated billing information is stored at the control computer for later accounting and billing use. The control and processing functions are centralized so as to reduce the cost to install and maintain the system.

Abstract: Apparatus for franking mail items is disclosed. The apparatus includes a display constructed for co-operation with a photocopier in which the display is controlled to display a franking pattern to be printed, the display being located as an original image in the photocopier, and the photocopier is operated to copy the displayed pattern and to print the pattern as a franking impression on a mail item. A sensor detects scanning of the display by the photocopier and the output of the sensor is utilised to control the display to ensure that only a number of mails items are franked with postage which has been accounted for.

Abstract: A film sheet holder handling apparatus 100 takes up a film sheet holder 4 in which photographic film strips 5 cut by the unit of one consumer's order amount are inserted into independent rows of pockets of the holder. The apparatus includes a film detecting sensor 19 for detecting presence/absence of the transported film sheet holder 4, a take-up member 30 for taking up the holder 4 by a predetermined amount corresponding to certain number of rows of the holder, and a push-out bar 41 for pushing out the holder 4 from the take-up member 30 after completion of the take-up operation by the take-up member 30 in a direction normal to the direction of transporting the holder 4.

Abstract: There is disclosed a belt assembly including: (a) an endless belt capable of repeated cycling over rollers having a first side edge and a second side edge and defining a center region between two side regions, wherein a low friction composition comprised of a fluoropolymer covers a portion of the length of the first side edge; and (b) a belt guide apparatus which contacts the first side edge during cycling of the belt to position the belt on the rollers, wherein the low friction composition reduces the wear of the belt at the first side edge.

Abstract: The temperature of a heated roller (1) is monitored by a heat sensor (19) which rests on metal rectangle (25) on polyimide strip (5). The top end of the strip is attached directly to the frame (3). the bottom end of the strip has a hole (7), which receives an arm (9a) of pivoted member (9). A coil spring (13) pivots member 9 to cause arm 9a to pull the strip into contact with the heated roller. Because of the wide contact and low force between the strip and the roller, wear is reduced and smooth operation is realized.

Abstract: A multi-function machine for combining and routing image data is disclosed. The multi-function machine includes a number of functional units, for instance, a digital copier which produces scanned image data, a printer which prints image data from a computer, and a facsimile device which receives and sends facsimile image data. Image data from one or a number of sources may be combined to form merged image data, corresponding to a merger of the individual images. The merged image data may then be conveyed to any of a number of user selectable destinations, including a printer, a host computer, or a facsimile device.

Abstract: Photofinishing method and apparatus of the type for handling film in a cartridge of the type capable of thrusting film from inside to outside the cartridge in response to rotation of a film bearing spool inside the cartridge, includes a turret having a nest for receiving a cartridge and transporting the cartridge to a succession of work stations where operations are performed on the film in the cartridge.

Abstract: A discriminating circuit discriminates the degree of similarity between an image represented by an input image signal and a predetermined specific image. A CPU outputs a pattern-level selecting signal based upon the results of discrimination performed by the discriminating circuit. A pattern adding circuit modulates an internally stored specific pattern in accordance with an added-color designating signal and pattern-level selecting signal produced by the CPU, and adds the modulated specific pattern to the image signal. As a result, a pattern specific to the apparatus is added in a reliably identifiable manner to an image output having a high probability of containing the specific original. In the case of an image output having a low probability of containing the specific original, the specific pattern is added to this image output in such a manner that the picture quality thereof is not diminished by the added pattern.

Abstract: A technique for improving the tone and color reproduction of print and slide images which are photographed onto color negative film, scanned by a Photo CD negative scanner and transferred onto Photo CD discs is disclosed. The technique incorporates a calibration method for (1) producing color negatives (or slides) using normal scanner calibration targets, (2) producing controlled prints from the negatives, (3) re-photographing the prints (or slides) onto a second color negative film, and (4) performing the normal scanner calibration using this second "cascaded" film. The calibration step not only "compensates for" the second color negative film (as is the case when calibrating for "normal" film exposed from the original scenes) but also "compensates for" the first negative film "print through" (or slide) characteristics.

Abstract: A control area is imaged on photo-sensitive graphic arts material to be evaluated for the sharpness of images printed on the material through the various stages of the reproduction process. The control area includes a light transmitting image divided into a plurality of segments where the image is a sharp-edged line element of a fixed preselected width. The line element is repeated from segment to segment in a preselected pattern of line elements separated a preselected distance apart by a space. The first segment of a control area has a solid optical density. At the opposite end of the control area is positioned a second segment having a substrate optical density. An intermediate segment includes a plurality of sections in which the line elements in each section are spaced apart the same distance, and the spacing between line elements varies from one section to the next. Thus, a range of spatial frequencies of repeating line elements is provided in the control area.

Abstract: An apparatus and method for transferring xerographically printed information on a piece of paper (102) to an ultraviolet sensitive medium (101). The paper (102) can be optionally treated with a chemical (207) to enhance ultraviolet light transmission through the paper (102). The paper (102)/medium (101) assembly may be advanced via nip rollers (432, 433) at a predetermined rate so as to optimize time of exposure to the ultraviolet light source (410).

Abstract: A first film cassette for containing a photographic filmstrip has a first data recording portion formed thereon. Data as to the recording of a plurality of image frames are recorded on the first data recording portion when exposing the filmstrip. The filmstrip is separated from the first film cassette before development. The filmstrip is subjected to a motion-picture-film type developing process constituted by splicing, development and separation of a plurality of filmstrips. The separated filmstrip is wound up in a second film cassette, and thus is preserved in a convenient state. The image recording data stored in the first data recording portion are transferred to a second data recording portion formed on the second film cassette, and are utilized in a printing operation. In a preferred embodiment, the filmstrip has a data recording area formed thereon. The image recording data stored in the data recording area are transferred to a preservative film cassette on a data recording portion.

Abstract: A method of predictably producing accurate photoprocessing reference image tool photographs to be used for adjusting the parameters of photographic devices, in which a first-generation camera-original image of a scene containing preselected background and subject content is photographed onto a first photographic recording medium. A second first-generation camera-original image of charts containing photoprocessing parameter control information is photographed under the same conditions as the first exposure, onto a second photographic recording medium. The first image is photodigitized into a first digitized image which is stored in a primary digital image data metric in a digital image data base. One or more parameters of the first digitized image are selectively adjusted. Photoprocessing control element(s) (e.g.

Abstract: A process for the authentication of documents which comprises generating developed documents in an electophotographic apparatus, or in a laser printer, with an encapsulated toner comprised of a core comprised of polymer, pigment, and an infrared absorbing component, and thereover a polymeric shell; and subjecting the document to an infrared reader whereby the near infrared absorbing component is detected spectroscopically.

Abstract: An electrical apparatus (e.g., copying apparatus) equipped with a counter for counting the number of specific cycles. Allowance or prevention of an operation cycle is controlled in accordance with voltage changes at a predetermined position of the controlling circuitry supplying a driving voltage to the counter. A specific operation of the electrical apparatus is enabled by connection of counter.

Abstract: A method and apparatus for fitting a replacement corona wire onto a corona wire cartridge is disclosed wherein the assembly includes a pair of hook type terminals, rivets to mount those terminals onto a cartridge frame, a replacement corona wire having a loop at each end, with one loop through one hook terminal and the opposing loop through one end of a double hook ended coil spring. The opposing coil spring hook end is mounted on the opposing hook end terminal.

Abstract: A method and apparatus for fitting a replacement corona wire onto a corona wire cartridge is disclosed wherein the assembly includes a pair of hook type terminals, rivets to mount those terminals onto a cartridge frame, a replacement corona wire having a loop at each end, with one loop through one hook terminal and the opposing loop through one end of a double hook ended coil spring. The opposing coil spring hook end is mounted on the opposing hook end terminal.

Abstract: A device for flattening curled or crumpled documents for copying on a photocopier is disclosed. The device includes a flat surface with lifting tabs and magnets attached thereto. The device is placed on top of the document which has been positioned face down on the transparent surface of the copier. The device straightens curled documents. For crumpled or wrinkled documents, when the hinged cover is closed, the device presses down on the document straightening out the curled or crumpled document so that it may be copied easily and cleanly. When the device is not in use, the magnets attached to the device enable the device to be stored by attaching it to the sides of the copier, or a file cabinet or stand.

Abstract: A copying apparatus has a receiving station, an exposure unit, a developing unit, an inspection station and a pricing unit with a memory. A master to be reproduced arrives at the receiving station together with an order for the reproduction thereof. The order has a coded order number which is read by a scanner at the receiving station and entered in the memory to establish a data set. The exposure unit is inoperative upon arrival of the master at the receiving station and is activated only upon entry of the order number. The master is then drawn into the exposure unit where copy material is exposed to light which has illuminated the master. The copy material is developed in the developing unit and the resulting copies are delivered to the inspection station where they are inspected for quality. The number of copies made is entered in the memory and incorporated in the data set with the order number.

Abstract: The picture image processing system disclosed in the present invention comprises a control number assigning means, a job reservation means, a control information storing means, and an output means, which yields the output of paper with at least some part of the control information printed thereon together with the control number, and this system may further comprise a reservation result recognizing means and an output means constructed in such a manner as to be capable of producing the output of the status of the reserved jobs printed thereon together with the control number, the information thus printed out being at least either one of the two types, characters and geometrical patterns, which may be made selectable by either a difference in the input equipment or the result of a processing job or both of these, with the possible addition of the capability of controlling the printing position for the characters or geometrical patterns.

Abstract: The invention is an improved removable film transport for photographic equipment. A roll of film is transported through the drive by a drive reel, a take-up reel, and a supply reel. The drive allows the presentation of a selected frame from the roll of film in precise relationship to photographic equipment on which it may be mounted, such as a printer or color analyzer. Incremental adjustment of the X-axis and Y-axis of the film in relation to the photographic equipment is easily located through the use of a stepper motor and a pair of nested, sliding and interconnected frames. The drive also includes a reading device for sensing and decoding machine readable marks placed on the roll of film, and includes the necessary interface between the drive and a computer or computer network. A special drive roller mechanism minimizes risk of damage to the surface of the film during operation of the drive.

Abstract: A processed film is wound again into the film cassette that contained the film therein before processing. The film is subjected to development and/or printing with one end fixed to a spool of the film cassette. Using a film cassette constituted by a rotatable spool having on its peripheral surface capture members for engaging in perforations of the film, a film guide member for guiding the film from a film gate of the cassette to the spool, and an urging device for pressing the film guide member onto the spool and enabling the guided film to be engaged with the capture members, it is possible to separate the film from the film cassette for development and printing and thereafter to wind up the film into the film cassette.

Abstract: In a transfer-type image recording device utilizing a recording medium comprising a continuous-form recording sheet and a cut-form developing sheet, the former is arranged to be fed in a predetermined speed, coated with a plurality of photo and pressure sensitive microcapsules each containing a dye-precursor and a component to change the strength thereof when exposed to light. And the latter is designed to be coated with a developer material which is reactable with the dye-precursor. In the image recording device, a visible image is obtained by transferring an image having been formed on the recording sheet onto a surface of the developing sheet. A roller member for peeling off the microcapsules from a surface of the recording sheet after a transfer operation of an image is executed. Thus, any recognizable image on the recording sheet, for example, a visible negative image formed by the remained microcapsules, is erased after the visible image is obtained on the developing sheet.

Abstract: A motorized sheet film cartridge comprises a light proof housing which defines an opening in its top wall. A refillable tray containing stacked sheet films is slidable in the housing. The housing includes a slidable door which displaces in a longitudinal direction horizontally over the tray and its content of sheet films between open and closed positions thereof. In its closed position, the door closes the housing opening, whereas in its open position, sheet films contained in the housing can be removed therefrom through the opening. The door is operated by a reversible DC motor which drives a pair of endless chains provided on each longitudinal side of the door for displacing the door between its open and closed positions. The motor is actuated by an external computer to appropriately open or close the door. The computer also verifies that the door is closed except when film is being loaded in the cartridge or unloaded therefrom through the opening. The cartridge is removable and portable.

Abstract: A disconnectable, remountable, extension for a document track in a table-top, document processing machine. The extension has first and second fingers which fit into first and second openings in a coupling member which is resiliently biased towards the document track. The extension also has members which cooperate with the document track to keep the extension aligned in a vertical direction relative to the document track. When the extension contacts another member when the machine is moved on the table top, the extension "break away" or is uncoupled from the document track without damage to either of the members. The extension can then be remounted on the document track.

Abstract: The present invention provides a new process for recording an image by using the above mentioned phenomenon. The process comprises (i) inserting an anisotropic molecular oriented film between two polarizing film of which polarization directions are parallel or perpendicular to each other, so that the anisotropy of said anisotropic molecular oriented film forms an angle of 45.degree. to the polarization directions of said polarizing film, and (ii) completely or incompletely degrading the anisotropy of an image portion in said anisotropic molecular oriented film.

Abstract: A printer for printing copy sheets includes a copy sheet path. The printer has an upper surface with at least one access panel vertically opening on the upper surface of the printer for sheet path access. The printer also has an operator control panel for controlling its functions. The operator control panel extends out over a portion of the upper surface of the printer overlying a copy sheet path access panel and extending towards the front of the printer for improved operator access to the operator control panel, with the operator control panel being laterally slidably mounted to the printer to be movable by the operator to a position not overlying the sheet path access panel for which opening is desired by the operator or indicated by the operator control panel.

Abstract: The number of copied sheets of paper accommodated in a staple tray for stapling process are counted by a counter. A transport path changeover member is switched over from a guide position to convey copy paper to the staple tray to a guide position to convey the copy paper to another discharge tray where stapling process is not performed corresponding to the counter value reaching the limit of stapling process. The copied sheets are, thereafter, guided to the discharge tray to continue on copying operation.

Abstract: A method of providing a prominent time of completion display and percentage of completion display for a given job requirement and providing an indication of the amount of paper stock required from several sources of paper stock in a printing system including the steps of responding to entered job requirements to calculate a total time of completion for the given job and the paper stock required from each of the paper stock sources, displaying the total time of completion at the operator interface, displaying the amount of paper stock required from each of the paper stock sources, and initiating the job run and during the job run periodically determining the time to completion of the remaining portion of the job and displaying the time to completion in a prominent bar graph.

Abstract: An image forming apparatus has a main body and an optical device provided in the main body for producing an exposure light of an image signal. The image forming apparatus also has a media cartridge detachably mounted to the main body. The media cartridge includes a supplying shaft on which unused photosensitive and pressure sensitive sheet is rolled for continuously supplying the unused sheet, an exposure section where the supplied unused sheet is exposed by the exposure light for forming a latent image on the supplied unused sheet, a pressure developing section to which an image receiver sheet is supplied and at which the receiver sheet is superposed and pressed onto the exposed sheet for pressure-developing an image onto the receiver sheet from the latent image, and a winding-up shaft for winding up the used sensitive sheet.

Abstract: An image forming apparatus includes a memory having stored code data, code data input keys and a preheat changeover key for selectively switching the fixing device to a preheat mode or an operation ready mode, whereby the apparatus is permitted to operate when code data manually entered by the code data input keys are identical with code data previously stored in the memory. The image forming apparatus further includes entered code data release means responsive to operation of the preheat changeover key for switching the fixing device to the preheat mode, release entered code data whereby the apparatus is inhibited from operating. When the preheat key is pressed, the apparatus is switched to the preheat mode and, at the same time, the entered code data is released. Accordingly, the apparatus requires no dedicated button or key for releasing the entered code data, and may put, to practice use, the preheat changeover means which has been conventionally disposed.

Abstract: A reproduction method and apparatus provides for the secure reproduction of confidential documents that include image portions formed with magnetic or metallic toners. The method and apparatus of the invention also provides for the production of documents such as statements with checks having bank clearing data formed with magnetic toner, documents containing magnetically bar coded data, and documents recorded with either or both magnetic or nonmagnetic toner that may be distinguished when copied in accordance with a copying criterion established for reproducing secure documents.

Abstract: A highly productive copier for use in a secure area or building is described. The copier includes a transparent electrical coil mounted either upon or within the copier's exposure platen and accompanying circuitry coupled thereto for detecting the proximity of metal such as those having magnetic or ferromagnetic properties. A document sheet fed to the platen for copying is sensed for the presence of the metal. Metal is present in confidential documents that have been made with metal containing toners and which are to be copied only by those authorized for copying same. A user identification system is provided for allowing users to identify themselves to the machine for allowing copying of confidential documents. Nonconfidential documents may be copied without requirement of identification. The copier is highly productive because it may be used with known high speed document feeders such as recirculating feeders without requiring a waiting period for the coil to be moved relative to the document.

Abstract: An image recording apparatus includes a medium supporting device for supporting a roll of a photosensitive recording medium in the form of a web, such that an active length of the web supplied from the roll extends along an exposing path. The apparatus further includes an exposing device for imagewise exposing the active length of the web of the photosensitive recording medium to an image radiation representative of an original image to be reproduced, while the active length is placed in the exposing path. The apparatus has an upper section disposed above the exposing path and including the medium supporting device, and a lower section disposed below the exposing path and including the exposing device. The upper and lower sections are separable from each other at the exposing path.

Abstract: In an image recording apparatus, a pair of support plates are provided in spaced-apart relation and in parallel to each other for rotatably supporting guide rollers for conveying a recording sheet, and a cartridge shaft around which the recording sheet in elongated, web-like form is wound. An outer casing is further provided which accommodates the support plates together with all components necessary for image recording. The casing has one wall arranged in the direction orthogonal to the surfaces of the support plate. A window is provided in that wall to facilitate maintenance of the apparatus.

Abstract: A printed background pattern for a document is described, wherein the pattern masks a copy indicator which is revealed upon making a copy of the pattern using a digital optical scanning means. The background pattern comprises an area of microprinting with a type size having a line resolution of about 20% to about 80% of the resolving power of the scanning means. Preferably, the type size is less than 100 .mu.m. An area of solid line printing is provided within the microprinting which defines the copy indicator. The solid lines have a visual value approximating that of the microprinting so as to be masked therein, and the solid lines are capable of resolution by the digital scanning means.

Abstract: A reproduction camera comprising an original plane, an objective plane, and a picture plane, a raster, a film, and a preferably transparent recording sheet being situated on a glass plate in the picture plane, and a rubber cover optionally being situated on the recording sheet during a reproduction. The recording sheet is preferably adhered along one side to the glass plate therebelow. Static electricity may, however, occur when a rubber cover in a pivotably mounted lid has been pressed towards the adhered recording sheet and is subsequently opened. The attractive force between the cover and the recording sheet caused by the charge may become so strong that the recording sheet follows the lid when said lid is opened. In addition the operator can be subjected to electric shocks.

Abstract: A device for cleaning a corona wire of a corona discharger which is installed in an electrophotographic copier, electrostatic printer or similar electrostatic recorder to play the role of a charger or a discharger. Cleaning members each being provided with a cleaner pad for rubbing against the corona wire are driven by a feed screw and not by a wire and pulley mechanism. The cleaning members brought to a home position are fully spaced apart from the corona wire. When cleaner support members are brought close to any of members which journal the feed screw at opposite ends of the feed screw, they are caused into resilient contact with the journalling member through a coil spring.

Abstract: A packaging arrangement and method for the user thereof to protect an electrophotographic photosensitive member which includes a packaging material for covering and protecting the electrophotographic photosensitive member from physical damage and is capable of generating a frictional electrostatic charge of the same polarity as the electrophotographic photosensitive material, whereby the packaging material has a stronger electron acceptor characteristic than the electrophotographic photosensitive material where the electrophotographic photosensitive material possesses a positive charge, and the packaging material has a stronger electron donor characteristic than the electrophotographic photosensitive material where the electrophotographic photosensitive material possesses a negative charge.

Abstract: A solar reactive device is set forth for imparting images on light sensitive paper. Light sensitive paper is positioned within an open container whereupon a positive transparency is positioned thereover and finally a plastic-like cover encloses the contents. The container is positioned to receive solar light for a time period, whereupon the plastic-like cover is removed along with the positive transparency. Further utilization of solar light effects clarification of an image imparted via the removed positive transparency.