-
公开(公告)号：US3653891A
公开(公告)日：1972-04-04
申请号：US3653891D
申请日：1969-12-31
Applicant: XEROX CORP
Inventor： THOURSON THOMAS L , HAUSER OSCAR G
CPC classification number: G03G15/04018 , G03G15/05
Abstract: A method of forming composite electrostatic latent images in one mode from both positive and negative optical information is disclosed. The techniques employed to form positive electrostatic images from optically positive information and optically negative information involve the use of principles relating to breakdown of air in a gap under the influence of a field. By properly controlling the polarity of the applied field any optical input may be used to deposit a positive electrostatic latent image on a suitable receiver to provide a composite image. This method of forming a composite image from optically positive and negative information may be used in a forms overlay fashion where it is desired to have ready access to certain forms for printout with information complimentary thereto or in any other electrophotographic image application where it is desired to employ one developer to develop composite images prepared from such information.
Abstract translation: 公开了从正的和负的光学信息两种形成复合静电潜像的方法。 用于从光学阳性信息和光学阴性信息形成正静电图像的技术涉及使用在场的影响下在间隙中空气破坏的原理。 通过适当地控制所施加的场的极性，可以使用任何光学输入来将正静电潜像沉积在合适的接收器上以提供合成图像。 从光学正和负信息形成合成图像的这种方法可以以形式重叠的方式使用，其中期望能够准确地访问特定的形式以打印出与信息互补的信息或其它希望的其它电子照相图像应用 聘请一名开发人员开发从这些信息准备的合成图像。
-
公开(公告)号：CA1166881A
公开(公告)日：1984-05-08
申请号：CA380304
申请日：1981-06-22
Applicant: XEROX CORP
Inventor： HAUSER OSCAR G , RUCKDESCHEL FREDERICK R
Abstract: This invention relates to an improved color developing composition, the composition being comprised of toner resin particles, with each of said particles containing therein up to four pigments, and a single carrier. Suitable pigments include magenta, cyan, yellow or white, and/or mixtures thereof. The pigments are present in an amount of from about 1 percent (part) to about 20 percent by weight. Such compositions are useful in obtaining color images utilizing a single pass xerographic imaging system.
-
公开(公告)号：CA1205124A
公开(公告)日：1986-05-27
申请号：CA428627
申请日：1983-05-20
Applicant: XEROX CORP
Inventor： HAUSER OSCAR G
Abstract: Apparatus and method for reducing toner contamination in an electrostatographic reproducing machine are described wherein at at least one housing which performs an operation on an imaging surface bearing an electrostatic latent image involving charged toner particles has at least one electrode extending across the width of and spaced from the imaging surface at at least one exit portion through which air normally flows from the housing to other portions of the machine, the electrode being electrically biased to a polarity and magnitude selected relative to the charge on the imaging surface to create an electric field barrier in the exit portion sufficient to repel the charged particles in the exiting air back into the principal portion of the housing substantially without restricting the air flow from the exit portion. In a preferred embodiment the electrode is positioned substantially parallel to the imaging surface. This electrostatic seal arrangement may be used in development or cleaning housings and a preferred mode is used in a magnetic brush development housing at the imaging surface entrance portion where the magnetic brush moves in a direction counter to the direction of the imaging surface.
-
公开(公告)号：BR8302879A
公开(公告)日：1984-04-17
申请号：BR8302879
申请日：1983-05-30
Applicant: XEROX CORP
Inventor： HAUSER OSCAR G
Abstract: @ Apparatus and method for reducing toner contamination in an electrostatographic reproducing machine are described wherein at at least one housing (34) which performs an operation on an imaging surface (12) bearing an electrostatic latent image involving charged toner particles has at least one electrode (50) extending across the width of and spaced from the imaging surface at at least one exit portion through which air normally flows from the housing to other portions of the machine, the electrode being electrically biased (56) to a polarity and magnitude selected relative to the charge on the imaging surface to create an electric field barrier in the exit portion sufficient to repel the charged particles in the exiting air back into the principal portion of the housing substantially without restricting the air flow from the exit portion. In a preferred embodiment the electrode is positioned substantially parallel to the imaging surface. This electrostatic seal arrangement may be used in development or cleaning housings and a preferred mode is used in a magnetic brush development housing at the imaging surface entrance portion where the magnetic brush moves in a direction counter to the direction of the imaging surface.
-
公开(公告)号：CA1048590A
公开(公告)日：1979-02-13
申请号：CA235480
申请日：1975-09-15
Applicant: XEROX CORP
Inventor： HAUSER OSCAR G , O'BRIEN JOHN F
IPC: G03G15/18 , G03G15/05 , G03G13/044
Abstract: IMPROVED ELECTROSTATOGRAPHIC METHOD AND APPARATUS An improved method for varying the Gamma in a TESI electrostatic imaging system is disclosed which provides for positioning a surface of a photoconductive body and a surface of a dielectric body in virtual contact whereby an air gap exists between a portion of the surfaces. The photoconductive body is imaged by exposure to electromagnetic radiation in image configuration while an electric potential difference is simultaneously established across the photoconductive and dielectric bodies. The resulting field in illuminated areas has a magnitude for causing ionization in the air gap and causing a charge pattern to transfer to the dielectric body. The process Gamma is controlled by employing a pulse imaging technique. Pulse imaging is provided by repeatedly interrupting the potential difference, the exposure or both.
-
Patent Agency Ranking
公开(公告)号：GB2246722A
公开(公告)日：1992-02-12
申请号：GB9111561
申请日：1991-05-30
Applicant: XEROX CORP
Inventor： MAMMINO JOSEPH , HAUSER OSCAR G , ABRAMSOHN DENNIS ALAN , NICHOL-LANDRY DEBORAH
Abstract: An ionographic imaging member, comprising an electroconductive layer and a charge accepting (dielectric imaging) layer, wherein at least one layer of a charge blocking material and an overcoat material are present, the charge blocking material being present as either a layer or incorporated in the charge accepting layer and the overcoat material which may also function as the charge blocking material is in a separate layer which is electrically compatable with the sub-systems of an ionographic imaging machine.
-
公开(公告)号：DE3374035D1
公开(公告)日：1987-11-12
申请号：DE3374035
申请日：1983-06-30
Applicant: XEROX CORP
Inventor： HAUSER OSCAR G
Abstract: @ Apparatus and method for reducing toner contamination in an electrostatographic reproducing machine are described wherein at at least one housing (34) which performs an operation on an imaging surface (12) bearing an electrostatic latent image involving charged toner particles has at least one electrode (50) extending across the width of and spaced from the imaging surface at at least one exit portion through which air normally flows from the housing to other portions of the machine, the electrode being electrically biased (56) to a polarity and magnitude selected relative to the charge on the imaging surface to create an electric field barrier in the exit portion sufficient to repel the charged particles in the exiting air back into the principal portion of the housing substantially without restricting the air flow from the exit portion. In a preferred embodiment the electrode is positioned substantially parallel to the imaging surface. This electrostatic seal arrangement may be used in development or cleaning housings and a preferred mode is used in a magnetic brush development housing at the imaging surface entrance portion where the magnetic brush moves in a direction counter to the direction of the imaging surface.
-
公开(公告)号：DE2542830A1
公开(公告)日：1976-04-29
申请号：DE2542830
申请日：1975-09-25
Applicant: XEROX CORP
Inventor： HAUSER OSCAR G , O'BRIEN JOHN F
-
公开(公告)号：GB2246722B
公开(公告)日：1994-01-12
申请号：GB9111561
申请日：1991-05-30
Applicant: XEROX CORP
Inventor： MAMMINO JOSEPH , HAUSER OSCAR G , ABRAMSOHN DENNIS ALAN , NICHOL-LANDRY DEBORAH
Abstract: An ionographic imaging member has a conductive layer overcoated by a charge accepting layer. Overcoating layers of acrylate, polycarbonate, polyester, polyurethane, acrylic homopolymer or copolymer and the like are provided. Blocking layers may be provided for preventing charge injection and reducing surface charge decay and bulk charge trapping. The charge accepting layer may be doped with a charge clocking material for preventing charge injection. The overcoating and blocking layers may be one and the same.
-
10.发明专利
公开(公告)号：CA1165163A
公开(公告)日：1984-04-10
申请号：CA360933
申请日：1980-09-24
Applicant: XEROX CORP
Inventor： HAUSER OSCAR G , RUCKDESCHEL FREDERICK R
Abstract: This invention is directed to a developer composition comprised of a resin, a colorant such as cyan, magenta, yellow, or mixtures thereof, and a single carrier. In one embodiment there is combined with a single carrier material, such as a steel carrier or a nickel berry carrier, a cyan toner, such as a styrene/n-butyl methacrylate resin, and copper tetra-4-(octadecylsulfon-mido) phthalocyanine, a magenta toner material comprised of styrene/n-butyl methacrylate copolymer resin and 2,9-dimethyl substituted quinacridone, and/or a yellow toner material comprised of styrene/n-butyl-methacrylate copolymer resin and a diarylide yellow 3,3-dichlorobenzidene aceto acetanilide. The developer composition is useful for developing color images in an electrophotographic imaging system. In this system a photoreceptor material contained therein is charged, imagewise exposed, followed by development, transfer of the developed image to a suitable substrate such as paper, and permanently fixing the developed image, by heat for example, to the substrate.
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.019 seconds)
