Abstract: An electrostatographic process cartridge detachably mountable into a cavity defined by mated modules forming parts of an electrostatographic reproduction machine. The process cartridge includes an elongate plastic housing having a first side and a second side, as well as an inner surface defining a process chamber. It also includes a rotatable photoreceptive member mounted within the process chamber and to the housing and having an image bearing surface for holding a formed toner image; a rotatable developer member mounted to the housing, and forming a critical development gap with the photoreceptive member within the process chamber for enabling jumping toner image development on the image bearing surface; a drive assembly mounted at the second side of the housing for coupling to the photoreceptive member; and a gear train mounted at the second side of the housing, and coupled to the drive assembly and the developer member for transmitting drive to the developer member.

Abstract: A method and apparatus for framing an image portion in which a size attribute of the applicable frame is inputted with a user interface and dimensions of the image portion are stored in memory. A processor determines, by reference to the inputted size attribute and the stored dimensions, whether a preselected relationship exists between the image portion and the applicable frame. When the preselected relationship does not exist, the image portion is scaled with an image processing subsystem.

Abstract: An index-guided semiconductor laser diode made by impurity-induced layer disordering (IILD) of GaInP and AlGaInP heterostructures. In some embodiments, prior to the IILD, wing regions flanking an active mesa region are etched down close to the active layer so that the selective IILD involves a shallow diffusion only. High-performance, index-guided (AlGa).sub.0.5 In.sub.0.5 P lasers may be fabricated with this technique, analogous to those made in the AlGaAs material system. Also described are several techniques for reducing parasitic leakage current via the IILD regions, which include methods for providing p-n junctions or high band gap materials to reduce the parasitic leakage. In other embodiments, a planar structure is produced but with an ultra-thin upper cladding layer. Only a shallow IILD step is necessary to penetrate below the active region.

Abstract: A method of ejecting copy sheets from the compiler in a printing apparatus that includes a processing section for transferring a developed image onto a copy sheet and a finishing section with a compiler and a stapler for receiving plural copy sheets to generate a print set. In particular, the level of copy sheets in a compiler tray is sensed, a tag in non-volatile memory indicating a number of allowable extra copy sheets in the compiler is monitored, and a capacity count for sheets to be stapled is referenced. In response, a set of copy sheets may be ejected from the compiler in an unscheduled manner as a function of the level of copy sheets in the compiler tray, the tag in non-volatile memory, and the capacity count for sheets to be stapled. This enables the finisher to complete a set that might have been prematurely ejected or enables the finisher to eject a set before reaching a jam condition.

Abstract: An image processing method for mitigating the effects of show-through in scanning a duplexed document in a duplex scanning system, including: deriving a scanned first side image P from a first side image A of a duplexed document and a scanned second side image Q from a second side image B of the duplexed document, at least the first side image P including a component thereof attributable to show-through from the second side of the document, and storing images P and Q; from second side image Q, generating a representation thereof corresponding to the show-through contribution to first side image P; processing image P to remove show-through as a function of the representation Q, thereby deriving correct image A.

Abstract: A device and method for measuring the thickness of liquid on an adjustable metering roll. The device comprising a transfer roll that mates with a back-up roll to form a nip through which a sheet passes for wetting a side of the sheet. An adjustable metering roll mates with the transfer roll and has a portion thereof positioned in a liquid filled sump for liquid to be added to an outside surface thereof. An optical sensor is positioned to detect the type of reflected light from the liquid on the outside surface of the metering roll and give off a Go/No Go signal when indicating contact between the metering roll and the transfer roll. The correct liquid thickness is obtained on the surface of the metering roll by further adjsutment of the metering roll.

Abstract: A copy media registration module for positioning paper in a feed path is disclosed. More specifically, the present invention is directed to a method and apparatus for detecting pre-drilled holes in copy media. A sensor detects the presence and absence of copy media in the feed path. Once a transition from paper to no-paper, or from no-paper to paper occurs, subsequent signals from the sensor are ignored for a designated period of time. At the leading edge of the sheet, this designated time period is chosen such that any possible holes will have moved past the sensor. At the trailing edge of the sheet, the designated time period is chosen based upon the maximum size of any holes that may be present.

Abstract: A user operates a user interface to select a rule for executing the process of a work flow, which is stored in a personal data base or a shared data base, and sends the conditional part of the selected rule as the goal to a query portion. Then, the query portion successively executes the process of the work flow through the computation by the SLD contradiction. When the goal fails in the execution by the computation, the failure goal is transferred as a tapple to the tapple space. The tapple is solved by another query portion, and the result of executing the tapple is returned to the tapple space. If a rule for executing the tapple is not found, the task is processed by man or a user and the result of the processing is entered into the system. In answer to this, the system interprets that the task has been proved to be true, and continues the execution of the work flow process.

Abstract: There is disclosed a chuck assembly for internally holding a hollow substrate having an open end including: (a) a body including an end section having a width narrower than that of the inner width of the substrate to permit insertion of the end section through the substrate open end into the substrate interior; and (b) a compressible spring coiled around a portion of the end section, wherein prior to compression the spring has an outer width larger than that of the inner width of the substrate, wherein upon insertion of the end section of the body into the substrate the spring is compressed by contact with the substrate inner surface resulting in the chuck assembly holding the substrate by the force generated against the substrate inner surface by the spring in opposition to the compression.

Abstract: An ink jet printing system includes an ink jet printhead which has an n-bit code representing a unique characteristic of the printhead formed on a substrate forming a part of the printhead. An n-bit data code is sent from a remote source to the printhead. If the data code matches the code on the printhead, printing operation is initiated. If the code is not matched, the print operation is inhibited.

Abstract: This invention relates to a charge transport dual layer for use in a multilayer photoreceptor comprising a support layer, a charge generating layer and a charge transport dual layer including a first transport layer containing a charge-transporting polymer, and a second transport layer containing a charge-transporting polymer having a lower weight percent of charge transporting segments than the charge-transporting polymer in the first transport layer. This structure has greater resistance to corona effects and provides for a longer service life. The charge-transporting polymers preferably comprise polymeric arylamine compounds.

Abstract: Noise that is hard for human vision to perceive and corresponds to the kind of an original document is superimposed on an input image signal by an amount corresponding to the kind of the original document. More specifically, a noise selection circuit selects a spatial frequency characteristic and an amplification value table that conform to the kind of an original document. Based on the selected characteristic and table, a noise amount calculation circuit calculates a noise amount corresponding to the image signal. A noise superimposing circuit superimposes the noise thus generated on the image signal.

Abstract: A method and apparatus for improving the quality of an image that has been developed by a liquid carrier is disclosed. Generally speaking, the invention includes conditioning an image that has been developed using a liquid carrier material to increase its strength. Thermal control is used to heat and cool the image in rapid succession, thereby increasing the cohesiveness of the solid particles contained in the liquid carrier.

Abstract: A non-magnetic one-component developer comprising a binder resin, a colorant and a charge controlling agent, the binder resin being a polyester resin which has a number average molecular weight of from 2,500 to 3,500, a weight average molecular weight of from 8,000 to 15,000 and a softening point of from 110.degree. C. to 130.degree. C., and which is substantially free from an ingredient insoluble in tetrahydrofuran, and the charge controlling agent comprising a metal complex salt compound represented by the following formula (1): ##STR1## wherein M represents a metal element selected from the group consisting of zinc, iron, nickel and cobalt, and R.sup.1 and R.sup.2 each represents a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms.

Abstract: A work environment is expressed as an information unit set (Snap), a data object or the like to be used in the work environment is expressed as an information unit (Mediator), a plurality of information unit sets are collected into a Place and are stored in Places into an information unit set hold history storage part 3, and an information unit set to be used in a current work environment is held by an information unit set hold part 14. If a given condition such as the change of a work or the like is prepared, then the information unit set held by the information unit set hold part 14 is stored into the information unit set hold history storage part 3 by a storage instruct part 7, and selection information such as the name of a work and the like is applied to the thus stored information unit set.

Abstract: An image processor for improving the quality of a picture, in which block noise arises as a result of a block encoding operation, by rendering gradations between blocks contiguous. A control point determination section reads references pixels from a decoded image storage section in accordance with a block address output from a block address generating section. The control point determination section then outputs control point information. A boundary condition determination section determines vector information on the basis of the control point information. An interpolating section interpolates a pixel block using a bicubic interpolated surface, and the thus interpolated pixel block is held in a buffer. A control point comparison section determines whether the pixel block can be interpolated and outputs prohibition information. On the other hand, a pixel block output from an 8 by 8 pixel block reading section is held in another buffer.

Abstract: A process for the preparation of toner comprising(i) preparing, or providing an aqueous colorant dispersion, which dispersion is comprised of a colorant and an ionic surfactant in water;(ii) blending said colorant dispersion with a latex emulsion comprised of resin particles, a nonionic surfactant, and an ionic surfactant of opposite charge polarity to that of the ionic surfactant in said colorant dispersion;(iii) heating the resulting mixture below about the glass transition temperature (Tg) of the latex resin to form toner sized aggregates;(iv) heating the resulting aggregate suspension of (iii) above about the Tg of the latex resin; and(v) retaining the temperature in the range of from about 30.degree. C. to about 95.degree. C.

Abstract: A substantially vertical contact scanning assembly records both sides of a document in a memory. In one embodiment, the vertical contact imaging assembly is a pair of two-dimensional sensor arrays. The document is fed between the pair of two-dimensional sensor arrays when they are space apart from each other using gravity. A registration stop positioned under the vertical contact imaging assembly aligns one edge of the document with an edge of the pair of two-dimensional sensor arrays. Once properly registered, the pair of two-dimensional sensor arrays are brought into contact with the document. After recording an electronic representation of both sides of the document, the two-dimensional sensor arrays are spaced apart from each other. Subsequently, the document is released into an output tray using gravity by lowering one edge of the registration stop.

Abstract: To reduce process time by simplifying the cache status and to improve the execution efficiency of the application program in the separate region conversion system that is capable of maintaining the hit rate of the cache at high level. When an access request is made to the object and if the object is not stored in the object cache, the page containing the object is read from the database and is stored in the page cache, and the object is read from the page and stored in the cache. The status of the page cache describing the status of the page stored in the page cache is stored in the page status storage device and at the same time the status of the object cache describing the status of the object stored in the object cache is stored in the object status storage device.

Abstract: In a coding system, when any of the prediction results of pixel value prediction sections 20 and 21 matches an object pixel, a coding section 50 codes an identifier of the pixel value prediction section whose prediction result matches the object pixel. When none of the results match the object pixel, the coding section 50 codes a prediction error of a prediction error calculation section 30. A decoding system decodes code to an identifier or prediction error and outputs pixel data from the corresponding pixel value prediction section based on the identifier or takes out pixel data from a prediction error addition section 31 based on the predication error.