Abstract: A Document Card (DocuCard) for storing documents and which is content revealing. The DocuCard is a transportable unit having a nonvolatile storage means for storing information in a digital form, a control processor for processing user initiated functions; an I/O port for interfacing to external devices for reading and writing digital information, and a user interface for allowing a user to directly interact with the DocuCard. The user interface on the DocuCard includes a display for displaying lists of functions and documents and information responsive to user invoked functions and a user input portion for allowing a user to traverse the lists of functions and documents, as well as information generated responsive to an invoked function. The control processor of the present invention include features for controlling access to documents stored therein.

Abstract: An electrophotographic imaging member is characterized by a halogenindium phthalocyanine produced by dry milling and treating with an organic amine solvent.

Abstract: A modular charging device for use in a printing or imaging system includes a plurality of individual charging units and means for arranging the plurality of individual charging units together in a modular fashion. The modular charging device may be arc-shaped to uniformly charge a rotating drum or a circular belt, or may be linear to uniformly charge a linear imaging member.

Abstract: Printing machines which incorporate a transfusing station having a transfusing member with a resistive heater layer. The transfusing station is entrained between at least two electrically conductive contact members, such as rollers, which electrically contact the heater layer. An electrical source sends current through the conductive rollers and the heater layer, heating that layer. A backup roller adjacent the transfusing member and the conductive rollers induces pressure on substrates which pass between the backup roller and the transfusing member. The combination of heat from the heatier layer and pressure induced by the backup roller causes any toner image on the transfusing member to fuse onto the substrate.

Abstract: An apparatus for cleaning the imaging surface of an electrophotographic machine that includes a biased conductive foam roll. The biased conductive foam roll removes toner from the photoreceptor. The biased foam roll provides the electrostatic cleaning advantages of an electrostatic brush cleaner without the problem of toner accumulation in the brush. The cell structure of the foam roll limits toner accumulation to close to the cleaning surface to enable simple detoning of the foam roll cleaner by a biased detoning roll or air flow.

Abstract: A device for transcribing, into electronic form, markings drawn on a whiteboard or blackboard. An electronic camera such as an ordinary video camera is mounted on a computer-controlled pan/tilt head in the ceiling or to the side of the board. Images are captured by directing the camera successively at small regions of the board, then processing these snapshots electronically, leading to a complete, undistorted, high-resolution image of the entire board.

Abstract: A reprographic device providing means for increasing the amount of space between lines of text when copying a source medium. The present invention provides a means to obtain a copy of a document having room between lines of text for hand written annotations e.g. it is double spaced.

Abstract: A feature in a thin-film structure such as an AMLCD array has an edge with a tapered sidewall profile, reducing step coverage problems. The feature can be produced by producing a layer in which local etch rates vary in the thickness direction of the layer. The layer can then be etched to produce the feature with the tapered sidewall profile. The layer can be produced by physical vapor deposition. The layer can, for example, includes sublayers with different etch rates, either due to different atomic proportions of constituents or due to different etchants. Or local etch rates can vary continuously as a result of changing deposition conditions. Differences in etch rates or differences in etchant mixtures can be used to obtain a desired angle of elevation.

Abstract: A xerographic copier is constructed to include a xerographic subsystem control which will cycle-out and deactivate the elements used for xerographic copying, including bias on the photoreceptor, and a machine subsystem control which cycles-down and produces machine shutdown. Also included in the copier is an adaptive time controller provided to adjust the time periods at which the xerographic and machine subsystem controls cycle-down and/or shutdown.

Abstract: An image processing apparatus in a reproduction system includes an image input terminal having a device resolution of K pixels per unit length by L pixels per unit length (K x L). Each pixel is defined at a depth b representing one of b optical densities. The image input terminal emits an input image at the device resolution and depth (KxLxb). A memory is provided for receiving and storing as electrical signals the input image emitted from the image input terminal. A first processing means converts the resolution of the input image to a plurality of output images at a second resolution of M pixels per unit length by N pixels per unit length (M x N). Each pixel is defined at depth d representing one of d optical densities. The first processing means converts the input image to the plurality of output images by spatially offsetting a periodically repeating mapping defining the conversion between the input image and the output image.

Abstract: A system electronically registers an image on an input document. The system includes a scanner for generating an image data stream representing an electronic image of the image on the input document and an edge detecting circuit for detecting edge data within the image data stream. A circuit calculates a skew angle of the input document based on the detected edge data and rotates the electronic image based on the calculated skew angle to register the electronic image with an output medium. The system also includes a non-image area generating circuit for generating areas in the electronic image which correspond to non-image areas based on the calculated skew and detected edge data. The skew calculation, rotation operation and the non-image area generation is based the electronic detection of the corners and center of the leading edge of the document being scanned.

Abstract: A full width read and/or write assemblies, such as a full width thermal ink jet printbar, is disclosed, having materials with both a high thermal coefficient of expansion and a low thermal coefficient of expansion. A suitable adhesive which provides lateral give while firmly holding the respective components together provides dimensional stability to the printbar element having a low thermal coefficient of expansion when components having high thermal coefficient of expansion are assembled thereto. The flexible or floating mounting enabled by lateral give of the adhesive allows for the application of cost effective materials with a high thermal coefficient of expansion to be used for support functions such as, for example, circuit boards and ink manifolds. The flexible or floating mounting relieves shear stress cased by a differential in the expansion or contraction of materials having a different thermal coefficient of expansion.

Abstract: A method and system implements a high addressability characteristic into an error diffusion process. A grey level value representing a pixel is received. The grey level value is interpolated to generate subpixel grey level values which correspond to a second resolution. A threshold circuit thresholds the interpolated grey level value. In parallel to the interpolation circuit and threshold circuit is an error circuit which generates a plurality of possible error values. One of the plurality of possible error values is selected based on the number of subpixels exceeding a threshold value. A portion of the selected error value is then diffused to adjacent pixels on a next scanline.

Abstract: The present invention provides a facsimile apparatus having a file transfer function which transmits file data to a receiving side utilizing one of a plurality of standardized file transfer modes which comprises first determining means for determining a specified file transfer mode, file description providing means for providing a file description unique to the specified file transfer mode if transmitting of a file description is necessary before a file is transmitted in the specified file transfer mode, file description storing means for storing the file description provided, second determining means for determining what file transfer modes can be set in the receiving side, selecting means for selecting a file transfer mode based on a determination result by the second determining means and the specified file transfer mode, converting means for converting the provided and stored file description into a file description unique to the selected file transfer mode if the selected file transfer mode is different

Abstract: A method is provided for printing a job in a printing system including a printer communicating with a memory section, wherein images, in the form of image data, are transmitted to the memory section, from an input source, for use in printing the job and the printing of the job is facilitated by a print processor. The method includes the steps of building a scheduling list, indicating an order in which images of the job are to be printed, and storing the scheduling list in a location that is accessible to the print processor. The method further includes the steps of retrieving an image from the input source, with the print processor, by referring to information in the stored scheduling list and providing an indication, in the scheduling list, when the image is resident in the memory section. Upon determining that the indication has been provided, a print is produced with a copy of the image.

Abstract: A method of changing the reference timing of a sheet transport control in an imaging forming device for determining the validity of the timing of a sheet by comparing the actual timing of a sheet with a a given reference timing. Actual timings for a plurality of copy sheets in relation to a predetermined sensor are stored in memory. A typical time period from the plurality of copy sheets is then determined in relation to the sensor and the reference timing for the sensor is adjusted based upon the typical time period for the sensor.

Abstract: A process for the preparation of toner comprising:(i) preparing a pigment dispersion comprised of pigment, an ionic surfactant, and optionally a charge control agent;(ii) shearing said pigment dispersion with a latex comprised of resin, a counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant, and a nonionic surfactant;(iii) heating the above sheared blend of (ii) about below the glass transition temperature (Tg) of the resin, to form electrostatically bound toner size aggregates with a volume average diameter of from between about 2 and about 15 microns and with a narrow particle size distribution as reflected in the particle diameter GSD of between about 1.15 and about 1.30, followed by the addition of a water insoluble transition metal containing powder ionic surfactant in an amount of from between about 0.05 and about 5 weight percent based on the weight of the aggregates; and(iv) heating said bound aggregates about above the Tg of the resin to form toner.

Abstract: A system for scanning a room to find the location of target devices, and then locking onto them with stationary directed beams for two-way communication. In one embodiment, a base system in each room comprises an IR source/receiver combination plus an LCD display panel which covers the source/receiver and is addressed in such a way as to open up dynamic apertures through which IR radiation in a scanning mode can be directed toward any particular location in the room. When a device at that location senses that it is being irradiated by the base station, the targeted device responds by emitting a coded packet of IR pulses. This system takes advantage of the higher bandwidth communication that can be obtained with point-to-point communications, while still allowing for multiple devices at arbitrary locations in the same room.

Abstract: An output sheets collection, separation and distribution system for printed sheets outputted from a shared centralized printer to which plural remote users electronically send respective print jobs from a plurality of separate user sites remote from said centralized printer location. A mobile vehicular mailboxing module is docked with the printer to collect the print jobs stacked in plural user-assigned mailbox bins by an internal sheet feeding and distribution system. The mobile mailbox module is then undocked and automatically sequentially driven to the separate remote user sites and distributes the respective print jobs to the respective users at those sites, or other designated sites, stopping only at those sites for which the moving mailboxing module contains designated print jobs in one or more bins.

Abstract: Disclosed is an oriented multi-layer ferrodielectric substance thin film which comprises: a first ferrodielectric substance layer of oriented crystals formed on a monocrystal substrate, the first ferrodielectric substance layer having a surface which is high in density and which is high in refractive index equivalently to that of a monocrystal but which is not smooth optically; and a second ferrodielectric substance layer of oriented crystals formed on the first ferrodielectric substance layer, the second ferrodielectric substance layer having a surface which is lower in density than the first ferrodielectric substance layer and which is lower in refractive index than a monocrystal but which is smooth optically.