Abstract: Disclosed is a recording sheet which comprises a substrate and a material selected from the group consisting of oxazole compounds, isooxazole compounds, oxazolidinone compounds, oxazoline salt compounds, morpholine compounds, thiazole compounds, thiazolidine compounds, thiadiazole compounds, phenothiazine compounds, and mixtures thereof. Also disclosed is a recording sheet which consists essentially of a substrate, at least one material selected from the group consisting of oxazole compounds, isooxazole compounds, oxazolidinone compounds, oxazoline salt compounds, morpholine compounds, thiazole compounds, thiazolidine compounds, thiadiazole compounds, phenothiazine compounds, and mixtures thereof, an optional binder, an optional antistatic agent, an optional biocide, and an optional filler.

Abstract: A transfer sheet detect sensor for detecting the presence or absence of a transfer sheet is disposed between a point of contact where a developing device for developing an electrostatic latent image formed on an image carrier to form a toner image is contacted with a transfer roller in a transfer portion and a point of tucking provided just upstream of the contact point where the transfer sheet is tucked into the image carrier just upstream of the contact point, the transfer roller is disposed such that it can be contacted with and retreated (separated) from the image carrier, and a cleaning roller is provided such that it can be contacted with the transfer roller while the transfer roller is retreated to its separated position, whereby a given cleaning voltage is applied to the transfer roller when the transfer roller is cleaned by the cleaning roller.

Abstract: A color image processing system for generating recorder image signals of four colors containing India ink from three color signals, the color image processing system includes a converter for converting three color signals into separated brightness and chromaticity signals; a range converter for converting the brightness signal into a range converted brightness signal which is within a record color reproduction range; an edge detector for obtaining an edge amount signal from the range converted brightness signal; a chroma detector for detecting chroma of an image signal from the chromaticity signal; an edge enhancer for enhancing an edge part of an image represented by the range converted brightness signal; a smoothing circuit for smoothing the range converted brightness signal; a brightness and chromaticity converter which includes a converter for executing brightness conversion by mixing an output of the edge enhancer and an output of the smoothing circuit according to the edge amount signal detected by the

Abstract: An information input/output system is made up of an information processing device and a wireless coordinate indicator. The information processing device provided with a display for displaying an object to be processed at a desired position, a position detector for detecting positional information based on indication information from the wireless coordinate indicator, a code extractor for extracting coded information from the indication information, an information controller for storing detected positional information and the extracted coded information by associating the information items with each other, and an information processing device for carrying out predetermined processing. The wireless coordinate indicator provided with a storage device for storing the coded information, and a signal transmission device for transmitting the coded information and the positional information to the information processing device.

Abstract: The present invention is a method and apparatus for generating N-bit per pixel output signals in response to M-bit per pixel image input signals, where M is greater than N. The invention employs a halftone cell threshold memory that stores a single threshold for each cell element. During real-time processing of the video image signals, multiple thresholds are calculated based upon the stored thresholds, and the image signals are compared to the thresholds. The threshold calculation process is simplified by using equally spaced constants and any desired variation from the resulting equally spaced thresholds is accomplished through a remapping of the video image signals using a look-up table. The output of the plurality of comparisons carried out for each halftone cell element is then encoded to produce a digital gray-scale output signal.

Abstract: A flexible electrophotographic imaging member including a supporting substrate coated with at least one imaging layer comprising hole transporting material containing at least two long chain alkyl carboxylate groups dissolved or molecularly dispersed in a film forming binder.

Abstract: A paper feeder capable of preventing a sheet of paper from breaking when a paper jam is developed within an image forming apparatus over the boundary between a paper conveying unit and the image forming apparatus and simply removing the jammed paper outside from the paper feeder. An entrance roller pair for feeding the paper is provided in the neighborhood of an entrance of a paper conveying path. A lower fixed guide member and a rotatable guide member opposed to each other so as to interpose the paper conveying path therebetween, are provided on the downstream side as seen in a paper feeding direction. Further, a jump portion which projects in convex form at a position opposed to the rotatable guide member and a paper sensor for detecting a rear end of the paper in the neighborhood of the entrance roller pair are provided.

Abstract: In a scheduling system which optimizes a sequence of operations for carrying out, for example, digital printing of simplex and duplex documents, a "schedule tree" is created and updated in real time. The schedule tree is a running list of all possible schedules or sequences of operations within a future time frame, given a desired output of documents. Various techniques are used to manage the size of the tree and select schedules from the schedule tree to be proposed to the printing apparatus over time.

Abstract: An image forming apparatus of such a type as is provided with a photosensitive member having a semi-conductive intermediate transfer member disposed opposite the photosensitive member. A charger electrically charges the photosensitive member. An exposure device forms an electrostatic latent image on the photosensitive member and developer visualizes the electrostatic latent image using toner identical in polarity to the photosensitive member. A primary transfer device transfers the toner image to the intermediate transfer member by applying a bias opposite in polarity to the photosensitive member, and a secondary transfer apparatus transfers the toner image on the intermediate transfer member to a transfer material. An optical charge-eliminator optically removes the electrical charge from the photosensitive member.

Abstract: Solid and highlight developed image patches are formed, and their densities are measured with a development density sensor and stored into a control case memory as data constituting a control case. Two additional control cases are similarly stored into the control case memory while a scorotron set value and a laser set value are varied. Receiving these control cases through a status quantity comparator and a cluster memory, a control rule calculation unit determines a control rule. By properly combining the control rules, new operation quantities, i.e., a scorotron set value and a laser set value, are determined.

Abstract: An apparatus which transfers a developed image from a charge retentive surface to a copy sheet. The apparatus includes a transfer roller that is overcoated with an insulator and charged by either a brush, roller or a blade. The biased transfer roller is brought into contact with the back of a copy sheet thereby transferring charges that migrate through the copy sheet to enable toner transfer from the photoconductive surface to the copy sheet. A metal blade can be used to simultaneously charge and clean the transfer roller.

Abstract: A data management system for managing data stored in a storage device is equipped with a behavioral storage unit for storing behavioral objects in which processing procedures on data management are defined, an entity storage unit for storing entity objects each of which refers to each of the behavioral objects, an object link management unit for setting reference relationship between the entity objects and the behavioral objects on the basis of a setting instruction and managing the set reference relationship, and a system executing unit for executing a processing procedure defined in a behavioral object to be referred to by an entity object which is instructed to be executed.

Abstract: During a first period of a conversion clock signal DL, a 3-dimensional DLUT color convertor 10 converts an RGB input color image signal of one pixel that is outputted from a input register 42, into an output color image data of yellow on the basis of conversion data from a conversion table 20. During the next period, the 3-dimensional DLUT color convertor 10 converts the RGB color image signal of one pixel into an output color image data of magenta on the basis of another conversion data. The 3-dimensional DLUT color convertor 10 likewise converts the RGB color image signal into output color image data of cyan and black in a time divisional manner. Accordingly, it is possible to convert an input color image signal of a color space into an output color image signal of another color space in real time, by one color converting means.

Abstract: A hard, long wearing, thermally conductive fuser member comprising a base member and a surface layer wherein said surface layer includes a fluoroelastomer and an alumina filler having an average particle size of from about 0.5 to about 15 micrometers, said alumina being present in an amount to provide a thermal conductivity of at least about 0.24 watts/meter .degree.Kelvin in said surface layer.

Abstract: Compact raster scanner assemblies, and systems which use such assemblies, having a laser source generating laser light; a photoreceptor moving in a process direction; and a raster scanner raster sweeping the photoreceptor. The raster scanner includes a rotating polygon, an F-.theta. scan lens in the sweep plane, and a first folding mirror positioned along a first axis for reflecting laser light passing through the F-.theta. scan lens toward the photoreceptor. The first folding mirror being aligned along an axis which is at an angle with both the process direction and the resulting fast scan direction. The raster scanner assembly further including a second folding mirror for receiving laser light reflected by the first folding mirror and for directing that laser light toward the photoreceptor such that the laser light sweeps across the photoreceptor in a direction perpendicular to the process direction.

Abstract: A non-interactive or scavengeless development system for use in color imaging. To control the developability of lines and the degree of interaction between the toner and receiver, an AC voltage is applied between a donor roll and two sets of interdigitated electrodes embedded in the surface of the donor roll to enable efficient detachment of toner from the donor to form a toner cloud. An optical switching arrangement effects an electrical connection between a slip ring and one set of interdigitated electrodes. The optical switch uses photoconductor elements, each having a geometry that results in an optical switching device having a larger capacitance and therefore capable of effecting switching at lower current densities.

Abstract: An electrophotographic imaging member including a substrate, a charge generating layer and a charge transport layer, the charge generating layer includes photoconductive particles selected from the group consisting of hydroxygallium phthalocyanine particles and titanyl phthalocyanine particles dispersed in a polymer matrix, the matrix comprising a uniform mixture of a film forming terpolymer reaction product of vinyl chloride, vinyl acetate and maleic acid and a film forming copolymer reaction product of vinyl chloride and vinyl acetate.

Abstract: An electrophotographic imaging member includinga supporting substrate having an electrically conductive layer,a hole blocking layer, an optional adhesive layer,a charge generating layer,a charge transport layer,an anticurl back coating,a ground strip layer andan optional overcoating layer,at least one of the charge transport layer, anticurl back coating, ground strip layer and the overcoating layer comprising a blend of inorganic and organic particles homogeneously distributed in a film forming matrix in a weight ratio of between about 3:7 and about 7:3, the inorganic particles and organic particles having a particle diameter less than about 4.5 micrometers. These electrophotographic imaging members may have a flexible belt form or rigid drum configuration. These imaging members may be utilized in an electrophotographic imaging process.

Abstract: An imaging process including providing an electrophotographic imaging member including a substrate, a charge generating layer and a charge transport layer including a small molecule hole transporting diarylamine, a small molecule hole transporting tritolyl amine and a film forming binder, depositing a uniform electrostatic charge on the imaging member with a corona generating device to which power is being supplied, the corona generating device comprising at least one bare metal wire adjacent to and spaced from the imaging member, exposing the imaging member with activating radiation in image configuration to form an electrostatic latent image, developing the latent image with marking particles to form a toner image, transfering the toner image to a receiving member, repeating the depositing, exposing, developing, transfering steps, resting the imaging member for at least 15 minutes under the corona generating device while the power to the corona generating device is removed and while the corona generating de