Abstract: Raster output scanner assemblies, and systems which use such assemblies, having mirrors mounted on the outside of an outer frame. Slits in the outer frame enable light to reflect from the mirrors. Beneficially, the outside mirror or mirrors are protected from contamination by mounting the primary surface of the mirrors (the surface which reflects light) against the outer frame and by mounting a cover over the mirrors.

Abstract: A process for controlling A.sub.t transience comprising: providing in a developer housing, a two component developer composition comprising toner particles comprised of a resin, a pigment, a mixture of at least two charge additives, and unpreconditioned coated carrier core particles, wherein the developer is prepared by combining and thereafter blending a mixture of from 1 to about 10 parts by weight of toner particles with from about 100 parts by weight of carrier particles for about 10 minutes to about 30 minutes until an A.sub.t value of from about 60 to about 100 is attained; and forming and thereafter developing electrostatographic latent images on a photoconductive member in a two component development electrostatographic imaging apparatus with the developer composition; wherein the developer composition has an A.sub.t transient of less than about 20 relative units.

Abstract: A color image reading device for reading a document image imaged on a line image sensor, wherein the line image sensor is a CCD including a first pixel line consisting of pixels having a first reading spectral characteristic and a second pixel line consisting of pixels having the second and third reading spectral characteristics arranged alternately; a two-layer dichroic mirror is provided on the CCD, said optical element for generating double images of an optical image corresponding to said first reading spectral characteristic and another optical image corresponding to the total of said first and second reading spectral characteristics; and the separation distance between the double images generated and imaged on the CCD by the dichroic mirror is approximately equal to the distance between said two lines of pixels on the CCD.

Abstract: An electroluminescent (EL) device includes a polymeric tetraaryl substituted biphenyldiamine.

Abstract: A carrier for an electrostatic latent-image developer, comprising a core material having thereon a coating layer comprising a resin and fine electroconductive particles, the resin having a work function of 4.5 eV or lower. An electrostatic latent-image developer comprising the carrier and a toner and an image forming process are also disclosed. The carrier is capable of maintaining a high build-up speed of electrification and a proper electrification level even when a charge control agent is omitted or used in a slight amount or when the addition amount of an additive such as silica and titanium oxide is reduced so as to prevent carrier fouling with a charge control agent or an external additive and to inhibit a decrease in developer life.

Abstract: In a printer, a controller keeps track of the imager's operation. The original image is transferred into a continuous tone image by using a tone reproduction curve. That signal is encoded into gray pixel data by a halftoner. The pixel data contains the pixel location and the desired darkness of gray, i.e., amount of toner deposited. An imager uses the pixel data to generate the final halftoned image in a printer. A controller generates a feedback signal based on the printer's operation and the quality of the final halftoned image. The imager uses the feedback signal to modify the encoded gray pixel data in order to adjust the final halftoned image. The original coding of the image into gray pixel data is generic and does not depend on the characteristics of the printer being used. This invention reduces the computation of gray pixel data and allows the imager to be separate from the apparatus generating the gray pixel data.

Abstract: An idealized stochastic screen is characterized by all of the predominant color dots (black or white) uniformly distributed. The present invention seeks to approach this optimization by iteratively selecting pairs of threshold levels in the screen matrix, and measuring the approach to the idealized stochastic screen. The threshold values are then swapped in position to determine whether the swap improves the measurement or not. If it does, the swap is maintained. The process is iterated until the desired result is obtained.

Abstract: Disclosed is a migration imaging member which comprises (a) a substrate, (b) a conductive layer comprising indium tin oxide dispersed in a polymeric binder, (c) a siloxane film charge blocking layer comprising a hydrolysis reaction product of a silane of the formula ##STR1## wherein R.sub.1 is an alkylidene group, R.sub.2 and R.sub.3 are each, independent of the other, a hydrogen atom, an alkyl group, a phenyl group, or a poly(ethyleneamino) group, and R.sub.4, R.sub.5, and R.sub.6 are each, independent of the others, alkyl groups, said siloxane having reactive hydroxyl and ammonium groups attached to silicon atoms, and (d) a softenable layer comprising a softenable material and a photosensitive migration marking material. Optionally an antistatic layer comprising indium tin oxide dispersed in a polymeric binder is situated on the surface of the substrate spaced from the softenable layer.

Abstract: A preparatory head drive method for an ink jet printer having heads each including a plural number of nozzles. In the method, a discharging, preparatory drive method for effecting the head temperature rise by driving the nozzles so as to discharge ink and a heating, preparatory drive method for effecting the same by driving the nozzles to such an extent as not to discharge ink are alternately executed.

Abstract: A sputtering device for coating a substrate which enters the device downstream and exits the device upstream. The device includes a vacuum container having a gas exhausting portion; a gas providing portion for providing inactive gas and reactive gas into the vacuum container upstream of the gas exhausting portion; a target provided in the vacuum container between a gas inlet and the gas exhausting portion; a diffusion interval from the target to the gas inlet, the diffusion interval having a length at least as great as the shortest distance between the target and the substrate to be coated; substrate supporting structure for supporting the substrate so that the substrate faces the target; and a plasma producing portion to produce gas plasma near the substrate. The reactive gas uniformly diffuses with the inactive gas within the diffusion interval, is made to be a plasma state, and reacts with sputtering particles scattered from the target to form a uniform film on a surface of the substrate.

Abstract: A positively charged liquid developer comprised of a nonpolar liquid, thermoplastic resin, a cyclodextrin charge control additive, pigment, and a charge director comprised of a nonpolar liquid soluble organic aluminum complex, or mixtures thereof of the formulas ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen and alkyl, and n represents the number of R substituents.

Abstract: A mixed resin liquid developer and a process for the preparation of liquid developers comprised of a nonpolar liquid, a mixture of thermoplastic resin particles, a charge director, and a charge control agent, the process characterized by the addition of a first thermoplastic resin and a charge control agent, followed by adding to the product obtained a second thermoplastic resin.

Abstract: A sheet stacking and registration system particularly suited for high speed sequentially stacking of the flimsy printed sheets output of a high speed reproduction apparatus in a sheet stacking area, with a stacking registration position; with a vacuum belt sheet transport system acquiring only a limited lead edge area of the sheets and transporting them over the stacking area with non-slip sheet feeding towards the registration position; and an integral system peeling the lead edges of the sheets off of the vacuum transport and guiding them downwardly and towards the lead edge registration position while reducing but partially maintaining the sheet's vacuum acquisition, and applying a normal force, preferably with a roller pressing down the lead edges of the peeled off sheet against the previously stacked sheets adjacent the registration position, to frictionally slow the sheet as it approaches the registration position, and also holding down the sheet after it reaches the stacking position.

Abstract: A transparency comprised of a supporting substrate, thereover a first coating layer comprised of an anionic layer that binds well with the substrate; and a second cationic layer situated on the top of the first anionic layer that binds with the anionic layer and comprised of cationic quaternary monomers and polymers thereof and a lightfastness inducing agent; and a third ink receiving layer situated on the top of the second cationic layer and comprised of block copolymers and graft polymers, a biocide and a filler; which transparency possesses a haze value of from about 0.5 to about 10 and a lightfastness value of from about 95 to about 98.

Abstract: A process for fabricating an electrophotographic imaging member includingproviding a substrate coated with at least one photoconductive layer,applying a coating composition to the photoconductive layer by dip coating to form a wet layer, the coating composition comprising finely divided amorphous silica particles, a dihydroxy amine charge transport material, an aryl charge transport material that is different from the dihydroxy amine charge transport material, a crosslinkable polyamide containing methoxy groups attached to amide nitrogen atoms and a crosslinking catalyst, at least one solvent for the hydroxy amine charge transport material, aryl charge transport material that is different from the dihydroxy amine charge transport material and the crosslinkable polyamide, andheating the wet layer to crosslink the polyamide and remove the solvent to form a dry layer in which the dihydroxy amine charge transport material and the aryl charge transport material are molecularly dispersed in a crosslinked polyamide

Abstract: A data recording medium having a well-recognizable recording layer which reversibly changes in degree of light scattering when externally stimulated. One embodiment of the data recording medium of the present invention comprises (a) a visible data recording layer, the degree of light scattering of which reversibly changes when externally stimulated, (b) a transparent substrate layer, (c) a low refractive layer having a lower refractive index than the transparent substrate layer, (d) a colored substrate layer and (e) a magnetic recording layer, laminated in this order. Another embodiment of the data recording medium comprises (a) a visible data recording layer, (b) a first transparent substrate layer, (c) a low refractive layer, (d) a second transparent substrate layer and (e) a colored magnetic recording layer, laminated in this order.

Abstract: A document processing system which, in response to a simple instruction given by a user, is able to change and modify automatically the design of an input document. The document processing system includes target area instructor for instructing an area serving as an edit target to a document image stored in document image holding unit, target area extraction unit for extracting the instructed edit target area out of the document image, design instruction unit for instructing a desired document design to an output document, design parameter decision unit, responsive to the instruction from the design instruction unit, for deciding a parameter value relating to the document design of the target area, and output image generation unit for processing the document image of the edit target area on the basis of the decided parameter value to thereby generate an output image.

Abstract: A method of imaging which comprises formulating an electrostatic latent image on an imaging member, affecting development thereof with a toner composition comprised of resin particles, and pigment particles, and which composition includes thereon a surface additive mixture of silica, or titanium dioxide, metal salts of fatty acids, and an aluminum complex, and thereafter transferring the developed image to a suitable substrate.