Abstract: A sensing system is disclosed for detecting a full condition within a waste developer system, the sensing system including: a developer waste bottle for receiving and holding waste developer material including toner and carrier deposited therein from the developer system, the developer waste bottle having a translucent, removable viewing window for optical viewing the level of developer material therein, the viewing window comprises a sensing portion in fluid communication with the developer waste bottle, the sensing portion adapted to have developer material flow therein when the magnetic material in the toner waste bottle reaches the predetermined level.

Abstract: An apparatus for reducing electrostatic charge of particles in a waste container. In one embodiment the waste container is coated with a liquid having a viscosity sufficient to prevent tribocharging between the waste container and the waster toner particles, and to collect toner particles deposited from the cyclone separator into the waste container. Another embodiment describes the use of a flange extending into the waste container to prevent tribocharging that can cause explosions in the waste toner bottle.

Abstract: The present invention is a method and apparatus for the fast rotation of binary images represented as a run length encoded data stream. The system employs a cache memory for efficiently representing parsed RLE data in a rotated orientation, where only the white-black transition points are recorded. Subsequently, the cache memory is further processed using a logic operation to fill in the runs between the recorded transition points during concurrent transfer of the image data to a band of page buffer memory. The process is repeated for a plurality of bands to complete the rotation/decoding process for an entire bitmap image.

Abstract: A charging module for applying a uniform electrostatic charge to a charge retentive surface is provided. The charging module is operably electrically connectable to a power supply for supplying an electrical bias to the charging apparatus. The charging module is mountable into a process cartridge. The process cartridge includes a cartridge mounting surface for cooperation with the charging apparatus. The apparatus includes a housing including a housing mounting feature and an electrode. The electrode is mounted to the housing and is positioned adjacent the surface in a non-contact relationship therewith. The housing mounting feature is adapted to be cooperable with the cartridge mounting surface to secure the placement of the charging module into the cartridge without the need for any installation tools.

Abstract: A deskewing and registering device for an electrophotographic printing machine. A single sensor determines the position and skew of a sheet in a paper path and generate signals indicative thereof. A pair of independently driven nips forward the sheet to a registration position in skew and at the proper time based on signals from a controller which interprets the position signals and generates the motor control signals. An additional single sensor can be used at the registration position to provide feedback for updating the control signals as rolls wear or different substrates having different coefficients of friction are used.

Abstract: A printing system including a moving intermediate transfer member for transporting a developed image from a moving image bearing member to a moving copy substrate. The moving intermediate member includes an elastic belt adapted to receive the developed image from the moving image bearing member at a first nip formed between the moving image bearing member and the moving intermediate member, and further adapted to transfer the developed image from the moving intermediate member to the moving copy substrate at a second nip formed between the moving intermediate member and the moving copy substrate, wherein the moving image bearing member and the moving intermediate member are transported at a substantiality equivalent first velocity in the first nip and a second velocity, substantially different from the first velocity, in the second nip.

Abstract: A combination belt and roll fuser has a pair of pressure engageable rolls with a belt looped or wrapped around one of the pressure engageable rolls such that the belt is sandwiched therebetween. The belt is deformed due to the force exerted by the pressure rolls such that it forms a single fusing nip. Substrates carrying toner images pass through the single fusing nip with the toner images contacting the outer surface of the belt. An internally heated, thermally conductive roll contacts a portion of the belt externally at a pre-nip location for elevating its temperature. The pressure engageable roll about which the belt is entrained is internally heated during warm-up for minimizing droop. This belt and roll fuser configuration exhibits the characteristics of a Nip Forming Fuser Roll (NFFR) fuser.

Abstract: A different code string copying apparatus allows a converted output string to be converted into a code set that is reusable as an original input string.

Abstract: Disclosed is an ink composition which comprises water, a colorant, a bisquaternary ammonium compound, and a material of the formula ?(F.sub.3 C(F.sub.2 C).sub.n CH.dbd.CHCH.sub.2 OCH(OH)CH.sub.2).sub.2 NCH.sub.2 COO.sup.- !?X.sup.+ !, wherein X is a cation and n is an integer of from about 3 to about 20. Also disclosed are ink jet printing processes employing the aforementioned ink.

Abstract: A magnetic composition comprising nanocomposite particles comprising from about 0.001 to about 60 weight percent of magnetic nanocrystalline particles dispersed in from about 40 to about 99.999 weight percent of a discrete phase matrix, and a continuous phase matrix, wherein the discrete phase resides in interstices within the continuous phase matrix.

Abstract: An image recording paper has a recording surface comprised of a film obtained by the steps of coating or impregnating a substrate comprised primarily of a pulp fiber with a liquid composition comprising a silicone compound and a finely divided material, which silicone compound is capable of combining with the substrate and with the finely divided material by a chemical reaction, and drying the coated or impregnated liquid composition. The liquid composition preferably contains besides the silicone compound a modified-silicone oil having in a molecule thereof a reactive group. This image recording paper eliminates a conflict between fixability and releasablilty of an image forming material and is easily reusable without altering the appearance of plain paper.

Abstract: When dynamically grouping a plurality of graphic objects, such as displayed on a graphic input display apparatus, a cluster tree is formed for the plurality of graphic objects. The cluster tree is based on a plurality of different types of distance measures. These include a time distance and a spatial distance. These distances are combined to form a distance metric indicting a distance between a pair of the graphic objects. Each level of the cluster tree defines a new cluster of the graphic objects. At least one of the graphic objects is selected. The different cluster levels of the cluster tree containing the selected graphic object are displayable. The displayed cluster of the graphic objects can be modified to increase or decrease the cluster level of the cluster containing the selected graphic object.

Abstract: A single pass ROS system provides a plurality of latent images which may subsequently be developed in different colors. The ROS units are initially aligned so that each color image is precisely registered at the same relative position along the exposed area of a photoreceptor belt. The alignment is accomplished by forming a pair of opposed alignment apertures in the surface of the belt and detecting coincidence or lack of coincidence of signals generated by the beginning and end of each scan line. The correction is enabled by rotating the output window in the ROS system, a transmissive optical component with no optical power, subsequent to the ROS, to create the required rotation of the projected scan line. Once the initial X and Y-axis alignments are complete, subsequent alignment is maintained through subsequent passes by checking the positions of the previously identified pixels as they advance past additional lead edge apertures formed in the process direction along the belt surface.

Abstract: Developer material, in a machine that has been idle in a cold, high relative humidity environment, is moved into an acceptable operating temperature/RH realm by warming the developer as it comes into contact with heated mixing augers. The augers are heated internally with a plurality of resistors.

Abstract: A development system for developing an image with developer material including a housing containing developer material; and a magnetic roll for transporting the developer material from the housing to the image, the magnetic roll including an magnetic core and a cylindrical sleeve enclosing and rotating about the magnetic core, the sleeve having a thickness between 0.001 to 0.006 inches.

Abstract: An image forming apparatus such as a printer and a copying machine, employs a simultaneous transfer and fixing method to obtain a highly lustrous image of high image quality, free of uneven lusterand disordered pixels over the entire density area. Assuming the outside diameter of the convex side roll to be R (mm), the hardness of hardness test of durometer type A and the thickness of the surface layer of the concave side roll to be HR (degree) and dR (mm) respectively, the hardness of hardness test of durometer type A and the thickness of the surface layer of the toner image carrier in contact with the recording medium to be Hb (degree) and db (.mu.m) respectively, and the nip width to be N (mm), the material and thickness of each surface layer for these two rolls and the intermediate transfer belt are selected so as to satisfy the following relationship:(Hb/HR)>0.8566 Ln{(N.sup.2 /R).multidot.(db/dR)}-0.5077where Ln<X> represents natural logarithm of X.

Abstract: An image forming apparatus and an image forming method for transferring and fixing is capable of securely transferring and fixing a toner image onto a recording medium after transferring the toner image formed on an image carrier onto an image transfer member with small energy consumption for high-speed printing. In this apparatus an endless belt-like intermediate transfer member facing to four image forming units is tensioned by a heating roll and the like, and a pressing member for pressing the recording medium against the intermediate transfer member in the most downstream portion of a contact area with the heating roll in the rotational direction of the intermediate transfer member. The toner image on the intermediate transfer member is heated by the heating roll at specified temperatures, and the toner melted is brought into tight contact with the recording medium at normal temperatures for transferring and fixing.

Abstract: The present invention is a method and apparatus for analyzing image data, and more particularly for analyzing image data representing images containing text to partition the image into running and non-running text regions therein. The present invention utilizes characteristics of running text regions to identify such regions and to subsequently group all non-running text regions into related groups.

Abstract: A toner jet printer and method of use for printing images by manipulating individual toner particles using two-dimensional print cell arrays built by micro electro mechanical systems (MEMS) technologies. Toner particles are positioned by electrostatic forces within each print cell by either selective or non-selective filling. If selectively filled, each cell is then subjected to a mechanical force to eject the toner particles onto a paper substrate. If non-selectively filled, only those print cells corresponding to an intended image are addressed electronically to eject a toner particle from an addressed cell by mechanical forces controlled by micro actuator actuation. Single color or multiple color printing can be achieved using the same cell array.

Abstract: An apparatus for moving a sheet bi-directionally. The apparatus includes a first roller and a second roller. A drive system is associated with the rollers to drive the first roller in a first direction. The drive system is adapted to rotate the second roller simultaneously with the first roller in the same direction as the first roller or in the opposite direction thereto. In addition, the drive system is capable of idling the second roller so as to adjust the timing of the sheet as it moves to subsequent processing stations within a printing machine.