Abstract: Disclosed is an ink composition which comprises water, an oil-soluble or alcohol-soluble dye, and a surfactant, said ink exhibiting a liquid microemulsion phase at a first temperature and, at a second temperature higher than the first temperature, separating into a mixture of an aqueous liquid phase and a liquid crystalline gel phase.

Abstract: A process for the preparation of toner compositions which comprises the mixing of a wax and silica particles, and thereafter adding the mixture to a mixture of toner resin, and pigment.

Abstract: A light modulation device with high density, high sensitivity, and excellent stability while having a simple construction and a non-destructive memory reading method using the same are disclosed. The light modulation device comprises a high polymeric liquid crystal film comprising a uniaxially orientated side chain type high polymeric liquid crystal containing a photochromic compound, and it modulates light in the wavelength region in which the photochromic compound has no absorption by making use of a change in refractive index anisotropy of the high polymeric liquid crystal film which has been caused by photoisomerization of the photochromic compound. The device is useful as a stable and high-density optical computing device or an erasable optical memory material.

Abstract: A light deflector wherein a polygon mirror rotating at a predetermined speed is used to deflect a beam of light irradiated from a laser light source to scan a photosensitive member or an original image with the deflected beam of light is improved in that the polygon mirror can be fixed firmly to the rotary member without disturbing smooth rotation of the polygon mirror. A screw member on which a male thread is formed is fitted on an outer periphery of the rotary member, and the polygon mirror is pressed against and secured to an annular mirror flange provided on the rotary member by a mirror cap screwed on the screw member.

Abstract: A reprographic device having means for eliminating undesired spacings between lines of text in copies of a source medium. Such means will often have the desired effect of reducing the number of pages in a multi-page document. The present invention accomplishes this by scanning the multiple pages to create bit-mapped images, segmenting the images to identify lines of text and graphics, identifying a distance X between segments, identifying a segment spacing factor which will cause reduction in the spacing between lines of text, laying out the segments in a print page memory so that the segments are separated by a distance based on the distance X and the segment spacing factor and printing out the contents of the page memory.

Abstract: Patterns of intelligence detected in a digital image representation are correlated with pattern classes according to a predetermined set of rules for improved pattern identification. Identified patterns are subsequently mapped to classes for continued use of classification.

Abstract: A magnetic process comprising: subjecting a magnetically susceptible media to a magnetic field wherein the fluid is magnetized and the magnetized media absorbs the heat of magnetization; transferring the absorbed heat from the magnetized fluid or solid to a heat sink; removing the magnetized magnetic media from the magnetic field, wherein the magnetic media undergoes spontaneous cooling to produce a cooled magnetic media; and providing heat to the cooled magnetic media from a heat source, and wherein said process is accomplished at above about 275 degrees Kelvin.

Abstract: A digital color scanner capable of high color quality includes a light source, a photosensor, a first color filter, a second color filter, a third color filter, and a fourth color filter. The first, second, and third color filters are positioned in an optical path between the light source and the photosensor so as to enable the photosensor to produce a first, second, and third set of color image data during a first calibration scan. The fourth color filter is moved into and out of the optical path between the light source and the photosensor so as to enable the photosensor to produce a fourth, fifth, and sixth set of color image data during a second calibration scan. A circuit produces a set of color correction values from the first, second, third, fourth, fifth, and sixth sets of color image data.

Abstract: A system and method for calibrating a printing system includes a printer and a master test image document printed by the printer. The master test image has three locator symbols and a plurality of test objects, each symbol having a distinct apex. The apexes are non-colinear. A memory prestores image data corresponding to the test objects printed on the master test image document and positional data corresponding to a desired coordinate value for each non-colinear apex. The system also includes a scanner for scanning the master test image document and detects the locator symbols printed on master test image document to generate transition data therefrom. The calibration process determines a coordinate value for each non-colinear apex based on the transition data and generates a transformation matrix based on a difference between the determined coordinate value for each non-colinear apex and the desired coordinate value for each non-colinear apex.

Abstract: A full color electronic display device using two liquid crystal light valve image forming sources and having two optical paths is suitable for use in projection or direct view display applications. The two-path LCLV device generates two separate, spatially coherent color images which are combined by additive spatial superposition to produce a single, full-spectrum, composite color image. One image is composed from a spectral band of light from the long (red) and medium (green) wavelength regions of the visible light spectrum, and is formed by a liquid crystal image forming source having a high resolution which determines the effective spatial resolution of the final image. The second image is composed from a spectral band of light from the short (blue) wavelength region of the visible light spectrum, and is formed by a liquid crystal image forming source having a resolution less than that of the red and green image, thereby producing a brighter blue light image.

Abstract: A method and system for printing a transmitted document having a cover page. The system determines if a present state of operation is a duplex mode and if a cover page has been transmitted. The system then prints, when the present state of operation is determined to be duplex and a cover page has been transmitted, the cover page as a simplex document and the remaining portion as a duplex document. On the other hand, the system prints the cover page and remaining portion of the transmitted document as a simplex document when it is determined that the present state of operation is a simplex mode.

Abstract: An ink jet ink includes a colorant and a liquid component containing at least one of an epoxy and a vinyl ether. Water may also be dissolved in the liquid component. Preferably, the vinyl ether is ethylene glycol monovinyl ether. An ink jet recording process includes the steps of ejecting an ink jet ink, such as the inks of the present invention, from an orifice to form an image on a recording medium.

Abstract: A technique of using an electronic dictionary in conjunction with electronically-encoded running text that gives the user the most relevant information rather than belaboring the user with all possible information about a selected word. The technique maps the selected word from its inflected form to its citation form, analyzes the selected word in the context of neighboring and surrounding words to resolve ambiguities, and displays the information that is determined to be the most likely to be relevant. The dictionary preferably has information about multi-word combinations that include the selected word, and the context determination typically entails checking whether the selected word is part of a predefined multi-word combination.

Abstract: An electrophotographic imaging member including a substrate, a hole blocking layer, an optional interface adhesive layer, a charge generating layer, and a charge transport layer, the blocking layer comprising solid finely divided organic electron transporting pigment particles having a short hole range, dispersed in a film forming polymer matrix.

Abstract: A power supply for a magnetron generating a DC output having a low voltage ripple content at the power supply output for energizing the magnetron. The power supply includes a voltage and current controlled regulator circuit transmitting an output signal having a voltage level and current level established according to the voltage across the magnetron and the current flowing through the magnetron. The ripple content of the power supply output is less than approximately 5-7% and causes the magnetron to operate in a relatively narrow bandwidth of approximately .+-.5 Megahertz. In one embodiment, an output of an induced sawtooth waveform is generated by turning on and turning off an AC supply to the power supply circuit to induce a ripple voltage for causing the magnetron to enter the correct operating frequency. In another embodiment, a regulator circuit generates a square wave signal having a period of oscillation based on the current flowing through the magnetron.

Abstract: A liquid removing device for removing carrier liquid from an image carrying member on which a toner image containing toner particles is formed. The liquid removing device is useful for image reproducing apparatus such as a color image copier. The liquid removing device comprises a base member, an elastic perforated material formed on the base member and having a continuous porosity sufficient to absorb excess liquid therein and an outermost layer formed on the elastic perforated material which has low surface energy sufficient to prevent an offset phenomenon of the toner image and small apertures defined thereby allowing passage the carrier liquid but the toner image therethrough.

Abstract: The present invention is a multiple spot laser assembly, comprising a plurality of laser diodes, and a plurality of mounts, which include a support surface, upon which the laser diode are permanently affixed. The mounts, including the base plate and/or heat sink, further include a mating feature along an edge thereof for aligning a first mount with an adjacent mount, the two mounts abutting along at least one common edge. The mating features assure the accurate alignment of the laser diodes on the adjacent mounts when the mounts are assembled into a multispot laser light source.

Abstract: Printing systems with a printing apparatus outputting plural regular print job set sheets in a process direction typically have a control system and an output system with a stacking tray in which the print job set sheets are stacked. The printing apparatus may also occasionally output, into the same stacking tray, purge sheets for removal, as determined by the control system. Here the output system includes process direction sheet offsetting apparatus controlled by the control system for automatically substantially offsetting the purge sheets in the process direction in the stacking tray relative to the regular print job set sheets, so that the purge sheets are readily visible and graspable for removal from the regular print job set sheets even from within a regular print job set, and are not stapled. The printing apparatus can thus continue to print and output more regular print job set sheets on top of the purge sheets.

Abstract: The resistors of heater elements are formed by chemical vapor deposition of polycrystalline silicon at at least one of a flat temperature profile of 620.degree. C. and a ramped temperature profile of 620.degree. C. to 640.degree. C. in a first embodiment. Such method of forming the polysilicon result in a predominantly uniform grain size of approximately 1000 .ANG., where grain size can vary between 200 .ANG. to 1000 .ANG.. Alternatively, the resistors are formed by chemical vapor deposition of amorphous polysilicon at at least one of a flat temperature profile at a temperature below 580.degree. C. and a ramped temperature profile of 565.degree. C. to 575.degree. C. In the alternative embodiment, the polysilicon has a grain size of at least 1000 .ANG.. During the ion implantation of either p-type or n-type dopants into the polysilicon, a flood gun located in an ion implanter emits low energy electrons to neutralize the build-up of positive charges on the polysilicon surface.