| Patent Number |
Title Of Patent |
Date Issued |
| D334565 |
Image plotter |
April 6, 1993 |
|
| 5346796 |
Electrically stabilized liquid toners |
September 13, 1994 |
| A homogeneous liquid composition, for use in the preparation of liquid toners containing at least one charge director and in which the electrical properties of the charge director(s) is/are stabilized, comprises: (1) insulating non-polar carrier liquid compatible with liquid toners for |
| 5335054 |
Image transfer apparatus including intermediate transfer blanket |
August 2, 1994 |
| Imaging apparatus includes a drum having an image bearing surface, apparatus for forming an electrostatic image on the image bearing surface, apparatus for developing the electrostatic image using a toner comprising charged toner particles to form a toner image, and an intermediate t |
| 5315321 |
Laser scanning apparatus with a positionable relay mirror |
May 24, 1994 |
| Apparatus for optical imaging onto a moving surface including a movable surface for receiving an optical image, apparatus for measuring the movement of the surface and providing an surface movement reference signal, optical image producing apparatus operative to produce at least one |
| 5300390 |
Liquid toner composition |
April 5, 1994 |
| An improved liquid toner composition for developing latent electrostatic images comprising toner particles, a release agent and a nonpolar dispersant liquid. An agent causing an apparent increase in the cohesivity of the toner particles may be included in the toner composition, or such |
| 5289238 |
Liquid toner developing apparatus having metal blade with insulating coating in contact with dev |
February 22, 1994 |
| Imaging apparatus including an imaging surface having a latent image with image areas at a first electrical potential and background areas at a second electrical potential and a developer. The developer includes a moving developer electrode electrified to a third electrical potential |
| 5286948 |
Fusing apparatus and method |
February 15, 1994 |
| Apparatus for fusing a thermoplastic image onto a substrate including a fuser element having a thin fusing member and apparatus for tensioning the thin fusing member. |
| 5286593 |
Liquid developer containing stabilized charge director composition |
February 15, 1994 |
| A method for stabilizing a charge director solution, and a charge director composition made by this method, whereby a charge director is mixed with a solvent and a polar monomer species and a polymerization reaction is initiated and allowed to progress to completion. |
| 5280326 |
Imaging system |
January 18, 1994 |
| Imaging apparatus including an image forming surface, image forming apparatus for defining an electrostatic latent image on the image forming surface, the latent image having image portions and background portions, development apparatus for developing the electrostatic latent image in a |
| 5278615 |
Liquid toner imaging system |
January 11, 1994 |
| A multi-color liquid toner electrophotographic apparatus includes an image bearing surface, a developing apparatus for developing an image on the image bearing surface using a plurality of liquid toners of different colors and a transferring apparatus for transferring the developed image |
| 5276492 |
Imaging method and apparatus |
January 4, 1994 |
| A method and apparatus for transferring liquid toner images from an image forming surface (10) to an intermediate transfer member (40) for subsequent transfer to a final substrate (42). the liquid toner images include carrier liquid and pigmented polymeric toner particles which are e |
| 5270776 |
Method for fusing developed image |
December 14, 1993 |
| An imaging process which includes the steps of developing an image with liquid toner including a liquid carrier and toner particles, transferring the image to a substrate and fusing and fixing the image to the substrate by the application of energy and pressure, such that at least about |
| 5268687 |
Laser scanning apparatus |
December 7, 1993 |
| Apparatus for optical imaging onto a moving surface including a movable surface for receiving an optical image, apparatus for measuring the movement of the surface and providing an surface movement reference signal, optical image producing apparatus operative to produce at least one |
| 5266435 |
Liquid toners containing charge directors and components for stabilizing their electrical proper |
November 30, 1993 |
| The invention relates to a homogeneous liquid composition which comprises: (1) liquid hydrocarbon compatible with liquid toners for electrostatic imaging, (2) at least one charge director, and (3) at least one stabilizing component in an amount effective to stabilize the electrical p |
| 5264313 |
Charge director composition |
November 23, 1993 |
| A method for stabilizing a charge director solution, and a charge director composition made by this method, whereby a charge director is mixed with a solvent and a polar monomer species and a polymerization reaction is initiated and allowed to progress to completion. |
| 5262829 |
Composition of matter useful for fusing of developed images and method and apparatus using same |
November 16, 1993 |
| A composition of matter including: (A) a release coating silicone polymer; (B) a cross-linker for (A) in an amount insufficient to substantially cross-link (A); and (C) a soft silicone rubber formulation, the weight ratio of (A) to (C) being in the range of from about 1:1.5 to 1:20. The |
| 5255058 |
Liquid developer imaging system using a spaced developing roller and a toner background removal |
October 19, 1993 |
| Imaging apparatus having an image forming surface arranged for movement in a first direction and an image forming apparatus for forming electrostatic latent image and background areas at respective first and second electrical potentials on the image forming surface, a development app |
| 5231454 |
Charge director replenishment system and method for a liquid toner developing apparatus |
July 27, 1993 |
| A system for imaging with liquid developer, the developer including carrier liquid, toner particles and charge director, the system including an electrostatic imaging surface apparatus for forming an electrostatic image on the electrostatic imaging surface, a reservoir for the liquid |
| 5225306 |
Charge priming agents for liquid toners |
July 6, 1993 |
| Liquid toner compositions for electrostatic imaging comprise carrier liquid, colorant particles and charge director(s), as well as charge priming agent(s) selected from alkoxides of aluminum and zirconium. |
| 5220384 |
Liquid developer based imaging machine using a developing electrode |
June 15, 1993 |
| A liquid toner based imaging machine includes a movable photoconductive member carrying an electrostatic latent image. A developing station contains a source of toner liquid that includes charged toner particles. The station is operatively associated with the carrier for contacting the |
| 5208637 |
Liquid toner replenishment system |
May 4, 1993 |
| Liquid toner imaging apparatus for producing an image on a substrate and having carrier liquid and toner particle carryout on the average in a first ratio, the apparatus including an image bearing surface, apparatus for developing an image on the image bearing surface using a liquid tone |
| 5208130 |
Charge director compositions for liquid developer |
May 4, 1993 |
| A liquid developer system for use in electrostatic imaging processes of the positive toner type comprises toner particles micro-dispersed in a carrier liquid and at least one charge director compound soluble in the carrier liquid, wherein the total amount of charge director compound is a |
| 5192638 |
Toner for use in compositions for developing latent electrostatic images, method of making the s |
March 9, 1993 |
| A liquid composition for developing latent electrostatic images comprising toner particles associated with a pigment dispersed in a nonpolar liquid. The salient feature of the invention is that the toner particles are formed with a plurality of fibers or tendrils from a thermoplastic pol |
| 5166734 |
Imaging system including pre-transfer discharge |
November 24, 1992 |
| Imaging apparatus including an image forming surface, image forming apparatus for defining an electrostatic latent image on the image forming surface, the latent image having image portions and background portions, development apparatus for developing the electrostatic latent image in a |
| 5157238 |
Fusing apparatus and method |
October 20, 1992 |
| Apparatus for fusing a thermoplastic image onto a substrate including a fuser element having a thin fusing member and apparatus for tensioning the thin fusing member. |
| 5155001 |
Liquid developer method with replenishment of charge director |
October 13, 1992 |
| A liquid developer system contains electrically charged toner particles that are applied to a surface having a latent electrostatic image thereon for developing the image. The liquid developer system includes an insulating non-polar carrier liquid, toner particles dispersed in the ca |
| 5148222 |
Liquid developer system |
September 15, 1992 |
| Liquid toner imaging apparatus including an image bearing surface, apparatus for developing an image on the image bearing surface using a liquid toner including carrier liquid and pigmented particles, and apparatus for transferring a developed image from the image bearing surface to |
| 5146276 |
Rotatable focusing means and variable magnification electrophotocopier |
September 8, 1992 |
| A variable magnification electrophotographic copier wherein the ratio of object and image distances is changed by rotating a focusing device about an axis orthogonal to its optical axis. In a preferred embodiment, the focusing device is a refractive lens having a shape factor different f |
| 5121164 |
Method for maintaining a liquid composition |
June 9, 1992 |
| A method for maintaining a preselected concentrations of first and second charge directors in a toner composition, where such composition is being subjected to a use in which initial concentrations of the first and second charge directors are being depleted. |
| 5117263 |
Liquid toner developer |
May 26, 1992 |
| Imaging apparatus including an electrostatic imaging surface, latent image forming apparatus for forming an electrostatic latent image on said electrostatic imaging surface and development apparatus for developing said electrostatic latent image which includes supply apparatus for su |
| 5108866 |
Process for preparing liquid toner composition |
April 28, 1992 |
| A process for preparing a liquid toner compsition which includes the steps of combining first and second types of pigmented particles and mixing them together whereby the first type of pigmented particles acquire charges of a first polarity and the second type of pigmented particles acqu |
| 5104717 |
Ink and multistrike ribbons incorporating the same |
April 14, 1992 |
| A ribbon ink has a viscosity that increases with increasing rate of shear for rates of shear greater then a predetermined value. A printer ribbon for use with an impact printer comprises a substrate containing ink having a viscosity that increases with increasing rate of shear for rates |
| 5089856 |
Image transfer apparatus incorporating an internal heater |
February 18, 1992 |
| An imaging system including an image bearing surface and an intermediate transfer member having an image transfer surface and being operative for transfer of toner images from the image bearing surface to the image transfer surface and for subsequent transfer to a substrate. The inte |
| 5078504 |
Dispersion apparatus |
January 7, 1992 |
| Dispersion apparatus for dispersing a first material in a second material comprising an enclosure having disposed therein an apertured divider defining first and second sub-enclosures within said enclosure on opposite sides of said divider, a first inlet for said first material communica |
| 5048762 |
Dispersion apparatus |
September 17, 1991 |
| Apparatus for dispersion of solids in liquids including two relatively movable elements arranged so as to define a dispersing volume therebetween, a multiplicity of separate generally cylindrical dispersing elements disposed within the dispersing volume, and apparatus for supplying a |
| 5047808 |
Image transfer apparatus including a compliant transfer member |
September 10, 1991 |
| An image system including an image bearing surface and an intermediate transfer member operative for transfer of liquid toner images from the image bearing surface to a substrate provides for first transfer engagement between the intermediate transfer member and the image bearing sur |
| 5047306 |
Humidity tolerant charge director compositions |
September 10, 1991 |
| A humidity tolerant charge director composition comprises a fine dispersion in a non-polar solvent of a charge direction material comprising a molecular charge director compound and an ionic charge director compound, each being conjugated to a polymer which is insoluble in non-polar orga |
| 5034778 |
Background cleaning system for liquid developer imaging apparatus |
July 23, 1991 |
| Dual color imaging process and system providing formation of an image having adjacent first and second areas respectively containing first and second types of pigmented particles undesirably separated by third areas relatively free of particles of the first and second types and causing t |
| 5028964 |
Imaging system with rigidizer and intermediate transfer member |
July 2, 1991 |
| Apparatus for image transfer including an image bearing surface arranged to support a liquid toner image thereon, including image regions and background regions, means for removing pigmented toner particles from the vicinity of background regions defined on the image bearing surface, mea |
| 5012300 |
Two-color imaging system and process |
April 30, 1991 |
| Dual color imaging process and system providing formation of an image having adjacent first and second areas respectively containing first and second types of pigmented particles undesirably separated by third areas relatively free of particles of the first and second types and causing t |
| 5004165 |
Dispersion apparatus |
April 2, 1991 |
| Apparatus for dispersion of solids in liquids including two relatively movable elements arranged so as to define a dispersing volume therebetween, a multiplicity of separate generally cylindrical dispersing elements disposed within the dispersing volume, and apparatus for supplying a |
| 4999677 |
Imaging system with rigidizer |
March 12, 1991 |
| Apparatus for enhancement of image transfer including an image bearing surface and a second surface arranged for relative movement along a pathway whereby portions of the image bearing surface and the second surface sequentially come into propinquity and subsequently move out of prop |
| 4985732 |
Electrostatic separator |
January 15, 1991 |
| Apparatus including a drum having a drum surface, apparatus for supplying a particle dispersion comprising particles to the drum surface, electrostatic apparatus for causing at least some of the particles to adhere to the drum surface and resilient blade apparatus downstream of the e |
| 4984025 |
Imaging system with intermediate transfer member |
January 8, 1991 |
| Apparatus for image transfer including an image bearing surface and an image receiving surface arranged for relative movement along a pathway whereby portions of the image bearing surface and the image receiving surface sequentially come into propinquity for image transfer therebetween |
| 4974027 |
Imaging system with compactor and squeegee |
November 27, 1990 |
| Apparatus for image transfer including an image bearing surface arranged to support a liquid toner image thereon, including image regions and background regions ,rigidizing means for rigidizing the toner image at the image regions, and squeegee means separate from the rigidizing means fo |
| 4945387 |
Image transfer apparatus and method using tension transfer member |
July 31, 1990 |
| Imaging apparatus including a flexible substrate, apparatus for tensioning the flexible substrate in at least two directions and apparatus for bringing the tensioned flexible substrate into image transfer engagement with an image bearing surface. A method of imaging using the apparatus i |
| 4912562 |
Method of and means for printing a multilevel representation of an image |
March 27, 1990 |
| A half-tone reproduction of an object on a recording medium is produced using gray level values contained in the cells of an object matrix representative of the object. An actuatable marking device is operatively associated with and displaceable relative to the recording medium for p |
