Abstract: A system for conditioning liquid ink made up of toner particles immersed in a liquid carrier medium being delivered to or on an image bearing surface in a multicolor electrostatographic printing machine of the type utilizing liquid developing material, particularly an image-on-image type liquid ink multicolor system. The liquid ink conditioning system includes a first member for electrostatically compressing or compacting the toner particles towards or on the image bearing surface. A second member is provided downstream from the first member for removing excess liquid from the compressed liquid ink layer.

Abstract: A projective display system includes a light source, a display surface, and a two dimensional light modulator array in an optical path between the light source and the display surface. The two dimensional light modulator array has a plurality of light modulators arranged in rows to modulate light from the light source, with at least one row being susceptible to failure. To compensate for any failed rows, a redundant light modulator array is provided, with modulated light output of the redundant light modulator array being directed by an optical element positioned to selectively substitute for at least one failed row of light modulators.

Abstract: A method and apparatus for delivering toner in sealed containers to a developing system in an electrophotographic machine. Toner is sealed in flexible containers which are connected in a belt-like manner so that toner can be supplied continuously in discrete amounts to the developing system. The belt of sealed toner containers travel from a toner supply housing to an extractor unit where the containers are opened, allowing the toner contained therein to fall to the developing system. The depleted toner containers continue to travel to a take-up member where they are stored. Generally, the depleted toner containers are removed from the take-up member and discarded when a new supply of toner is added to the toner supply housing. This sealed container system allows for a large supply of toner to be stored anywhere in the electrophotographic machine and for the toner supply to be replaced very cleanly.

Abstract: A negative-electrification type electrophotographic photoreceptor which has an undercoat layer slightly soluble or insoluble in solvents and retains stable properties, and to provide a contact electrification type electrophotographic apparatus employing the photoreceptor and less apt to suffer dielectric breakdown. The electrophotographic photoreceptor comprises an electrically conductive support having thereon an undercoat layer and a photosensitive layer, in which the undercoat layer comprises an electron-transporting pigment and a reactive organometallic compound. This electrophotographic photoreceptor is suitable for use in an electrophotographic apparatus in which the photoreceptor is charged by applying a voltage to a charging member disposed so as to be in contact with the photoreceptor, in particular, an erase-less electrophotographic apparatus.

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: A gyricon or rotating-particle display having an "eggcrate" substrate. The display includes a substrate having a cavity-containing matrix whose cavities are disposed substantially in a single layer and are arranged within the matrix substantially in a geometrically regular pattern, and a plurality of optically anisotropic particles disposed in the cavities in the substrate, with each cavity containing at most one of the optically anistropic particles. A rotatable disposition of each particle is achievable while the particle is thus disposed in the substrate; the particle, when in its rotatable disposition, is not attached to the substrate.

Abstract: Disclosed is an imaging member which comprises a conductive substrate, a photogenerating material, and a binder which comprises a polymer of the formulae I, II, III, IV, V, VI, VII, VIII, IX, or X as further defined herein.

Abstract: A microwave dryable thermal ink jet ink including an aqueous liquid vehicle, a co-solvent of formylethanolamine, acetylethanolamine, triethanolamine, trimethylolpropane, thiodiethanol, sulfolane and 1,3-dimethylimidazolidinone, a colorant, and ammonium bromide is described. Ammonium chloride may also be included in the microwave dryable ink so long as the ink also contains ethylene glycol as a second co-solvent. A method of forming an image on an image receiving substrate with a microwave dryable thermal ink jet ink of applying in imagewise fashion to the image receiving substrate by thermal ink jetting a microwave dryable thermal ink jet ink comprising formylethanolamine, acetylethanolamine, triethanolamine, trimethylolpropane, thiodiethanol and 1,3-dimethylimidazolidinone, a colorant, and ammonium bromide, and thereafter exposing the image receiving substrate to microwave radiation to dry the image on the substrate is also described.

Abstract: Apparatus and method for separating and recovering separately toner particles of one matchable characteristic different color toner contained in a mixture of a plurality of such different color toners. The apparatus and method include a holder for holding a quantity of the mixture of a plurality of such different color toners, and a selected particular type of carrier beads characteristically matching, and being more likely to charge, attract and triboelectrically bind with, toner particles of a matching color toner in the mixture of the different color toners than with toner particles of any other color toner therein.

Abstract: Each signal line connected to one light receiving element array is placed between switching transistors of the switching transistor array corresponding to another light receiving element array over the entire light receiving element arrays, so that the wiring capacity values occurring in the signal lines can be made uniform. High-quality image signals excellent in half tone reproducibility with few variations in dark output and a wide dynamic range of sensor output can be provided.

Abstract: A sheet stacking and lifting cassette tray assembly for reliably and effectively feeding sheets of different basis weight for use in a reproduction machine. The sheet stacking and lifting cassette tray assembly includes a cassette frame including a frame floor, and frame side walls; a plurality of sheet stacking and lifting subassemblies mounted within, and to, the frame side walls for applying selectable values of sheet lifting normal forces against a sheet feedhead. Each sheet stacking and lifting subassembly of the plurality of sheet stacking and lifting subassemblies includes a pivotable stacking and supporting plate, and a set of springs having a spring rate for providing a normal force having a particular value for lifting a stack of sheets.

Abstract: A method for making a fresnel lens on a substrate by forming a plurality of annular rings. Each ring has a plurality of steps, with each step having an inner wall and an outer wall, and an upper surface.

Abstract: A method and apparatus is provided for transverse registration of image exposures on photoreceptive belts subject to lateral deviation from linear travel in which targets, corresponding in location to the image areas to be exposed, are used for the detection of lateral belt displacement and to control the transverse location of exposure scan. The targets each comprise a group of three slots formed in the belt, each slot inclined by some angle .theta. with respect to the transverse process direction of belt travel so that the duration of time between passage of the slots with respect to a spatially fixed sensing axis will vary with lateral displacement of the belt.

Abstract: A writing head suitable for use in an electrostatic marking device includes a head member composed of multiple joined head member sections. The ability to join sections enables the writing head to be built in a wide variety of lengths. The writing head also includes a set of first surface conductive pads permanently fixed to a first surface of the first head member and disposed in a lengthwise row, and a set of second surface conductive pads permanently fixed to the second surface of the first head member. Each second surface conductive pad is paired with one of the first surface conductive pads, and the pair of pads is electrically connected by way of a conductive via extending through the first head member. A plurality of conductors is disposed on the first head member in a substantially equally spaced and parallel relationship, with one end of each conductor being permanently connected to a respective one of the first surface conductive pads.

Abstract: A system for routing a document job in a printing system with a print engine. The routing system includes a controller providing a set of information including an indication to a user of the printing system that the print engine is busy producing a first set of prints from a first set of image data. The set of information is received at a user interface and the user, in response to receiving the set of information, directs the controller, by way of the user interface, to cause a second set of prints, representative of a second set of image data developed at the printing system while the first set of prints is being produced by the print engine, to be (i) produced subsequent to the producing of the first set of prints and (ii) delivered to one of one or more mailbox bins.

Abstract: An end flange capable of translating a rotational force from an outside source to a hollow cylindrical member is disclosed. The end flange is made from a composition which includes polycarbonate, polytetrafluorethylene, and glass. The end flange may be used to rotate an electrophotographic imaging member past a charging station, for generation of a uniform electrical potential thereon, and subsequent selective discharging of the imaging member and development of an electrostatic latent image. Most notably, mounting of the end flange to the imaging member does not require the use of an adhesive material. This enables successful recycling of the imaging member, and results in significant cost savings.

Abstract: An automatic apparatus and method for controlling and enabling clean and convenient clearance of a stalled copy sheet from a copy sheet handling system of an electrostatographic reproduction machine. The automatic apparatus and method include a programmable controller for declaring detection of an error in copy sheet movement; position determiner for determining a first actual position of the copy sheet at a moment of detection of an error. The position determiner means includes a first sensing device mounted upstream of an image transfer station of the machine relative to a direction of sheet movement, and a second sensing device, mounted downstream of the first sensing device relative to the direction of sheet movement.

Abstract: In producing a sensor device with a sensing element and a thin film transistor, a semiconductor layer with microcrystalline silicon (.mu.c-Si) is produced in which semiconductor channel leads are formed. The .mu.c-Si has a structure that prevents formation of bubbles at the sides of the semiconductor layer during subsequent production of a sensing element in a silicon-based layer. The semiconductor layer can be a deposited doped layer of .mu.c-Si, or a layer of intrinsic .mu.c-Si can be doped. The .mu.c-Si layer can be deposited with a sufficiently small amount of hydrogen to prevent formation of bubbles; it can be deposited with crystalline grain structures permitting hydrogen to dissipate at a sufficient rate to prevent formation of bubbles; or its interfaces can be formed with sufficiently stability to prevent formation of bubbles.

Abstract: The method reduces vibrations generated in a contactor due to movement of the moving body by which the contactor contacts with a moving body. When a stroke of vibration of the contactor is halved at an intermediate point of an amplitude thereof, the vibrations are made different from each other in frequency between the reciprocation stroke in the forward side which corresponds to one of the halved stroke portions and the reciprocation stroke in the backward side which corresponds to the other halved stroke portion.

Abstract: In an optical fiber comprising a core, and a clad which has a smaller refractive index than that of the core and with which the core is covered, an tip portion of the core has the most pointed portion which is in a conical form and has the top of an acute angle of .theta.1. Furthermore, the tip portion of the core has a core tip peripheral portion which is contiguous to the most pointed portion and has a slant of a gentler incline than the acute angle .theta.1. The optical fiber is used for, e.g., a probe.