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Document Title |
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7070893 |
Thick intermediate and undercoating layers for electrophotographic imaging members, and method for making the same
An electrographic or electrostatographic imaging member comprises a supporting substrate, an undercoating layer, a charge generating layer, and a charge transport layer. Thick undercoating layers...
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6737667 |
Image recording medium, image retrieving method and image retrieving apparatus
In an image recording medium, in which a size of a first electrode layer is smaller than a recording photoconductive layer, image quality is enhanced by preventing an influence of corona discharge...
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5882831 |
Acid doping latitude enlargement for photoreceptors
An electrophotographic imaging member comprising a charge generating layer comprising trigonal selenium particles and a charge transport layer, the charge transport layer including a protonic acid...
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5849445 |
Multilayer photoconductive elements having low dark decay
A photoconductive element comprising an electrically conductive base; two or more charge generation layers; at least one charge transport layer; and a protective layer comprising diamond-like...
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RE35246 |
Layed photosensitive material and electrophotography comprising selenium, arsenic and tellurium
A photosensitive material for electrophotography is provided, which comprises in sequence an electroconductive substrate, a carrier transport layer composed of a selenium-arsenic alloy, a carrier...
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5330863 |
Photosensitive material for electronic photography use
A photosensitive material for use in electric photography, which comprises in sequence a conductive substrate; a carrier transport layer consisting of a selenium/arsenic alloy; a carrier generation...
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5206103 |
Photoconductive imaging member with a charge transport layer comprising a biphenyl diamine and a polysilylane
A photoresponsive imaging member comprised of a photogenerating layer, and a charge transport layer comprised of a mixture of a biphenyl diamine and a polysilylene.
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5166021 |
Photoconductive imaging members with polycarbonate fluorosiloxane polymer overcoatings
Polycarbonatefluorosiloxane polymers of the following formula ##STR1## wherein R1, R2, and R3 are independently selected from the group consisting of hydrogen, alkyl and aryl; k,j,m and n represent...
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5162182 |
Photosensitive member for electrophotography with interference control layer
A photosensitive member for electrophotography has a conductive substrate provided thereon with, in order, a charge transport layer, a charge generation layer, an interference control layer and an...
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5139906 |
Photosensitive medium with a protective layer of amorphous hydrocarbon having an absorption coefficient greater than 10,000 cm-1
A photosensitive medium which comprises an electroconductive substrate, an organic photosensitive layer formed on the substrate and a surface protective layer formed on the photosensitive layer and...
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5075188 |
Selenium electrophotographic photoreceptor
The present invention provides a seleniumn electrophotographic photoreceptor comprising a laminate of a conductive base, a carrier transportaion layer consisting of amorphous selenium or an...
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5039584 |
Charge transport layers containing purified polycarbonates
A process for the purification of polycarbonates or copolymers thereof containing titanium catalyst residues, which comprises mixing a polycarbonate or copolymers thereof with a solvent; adding to...
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5021310 |
Electrophotographic photoreceptor
An electrophotographic photoreceptor is provided comprising, in sequence: a) a conductive base; b) a carrier transport layer; c) a carrier generation layer comprising a selenium alloy; d) a carrier...
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4990420 |
Electrophotographic photoreceptor with doped Se or Se alloy interlayer
In an electrophotographic photoreceptor, a layer is interposed between the electroconductive substrate and the surface photosensitive layer or between the carrier transport layer and the carrier...
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4990419 |
Function separation type electrophotographic photoreceptor comprising arsenic, selenium and tellurium
An improved electrophotographic photoreceptor of a function separation type for long wavelength light is provided which comprises an As2 Se3 carrier transport layer, a 30 to 50 wt % Te-Se alloy...
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4959287 |
Xeroradiographic imaging member
A xeroradiographic imaging member containing a substrate having an electrically conductive surface, an electroradiographic insulating layer selected from the group consisting of selenium and...
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4939056 |
Photosensitive member
This invention provides a photosensitive member with a surface protector layer. The surface protective layer comprises a resin layer and an amorphous carbon layer. The surface protective layer of...
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4933244 |
Phenolic epoxy polymer or polyester and charge transporting small molecule at interface between a charge generator layer and a charge transport layer
An imaging member comprising an electrophotographic imaging member comprising a substrate having an electrically conductive surface, a charge generator layer, a charge transport layer comprising a...
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4917980 |
Photoresponsive imaging members with hole transporting polysilylene ceramers
A charge transporting polysilylene-ceramer for use in layered imaging members comprised of ##STR1## wherein R1 l and R2 are independently selected from the group consisting of alkyl, aryl,...
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4891290 |
Photosensitive material for electrophotography
A photosensitive material for electrophotography is provided, which comprises in sequence an aluminum substrate, a charge transport layer, a hole injection layer, a charge generation layer, and a...
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4880717 |
Photosensitive body for electrophotography with protective and intermediate layers
The present invention provides a photosensitive body of Se-based function separation type to be used in electrophotographic equipment which employs long wavelength light for writing. Such a body...
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4877700 |
Layered electrophotographic recording material containing selenium, arsenic and bismuth or tellurium
An electrophotographic recording material comprises a dual photoconductive layer applied to an electrically conductive substrate. The lower layer disposed on the substrate is made of an amorphous...
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4868077 |
Layered photosensitive material for electrophotography comprising selenium, arsenic and tellurium
A photosensitive material for electrophotography is provided, which comprises in sequence an electroconductive substrate, a carrier transport layer composed of a selenium-arsenic alloy, a carrier...
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4837099 |
Multilayer photoconductor for electrophotography
A photoconductor for electrophotography has a unique electron injection-limiting layer of either pure selenium or a selenium-arsenic alloy containing less than 10 weight % arsenic formed between...
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4822703 |
Photoresponsive imaging members with polygermanes
A layered photoresponsive imaging member comprised of a supporting substrate, a photogenerating layer, and a hole transport layer in contact therewith, which layer is comprised of polygermane...
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4801515 |
Photosensitive member having an overcoat layer
A photosensitive member of the present invention comprises an electrically conductive substrate, a photoconductive layer and an overcoat layer.The photoconductive layer comprises selenium-arsenic...
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4786570 |
Layered, flexible electrophotographic imaging member having hole blocking and adhesive layers
A flexible electrophotographic imaging member is disclosed which comprises a flexible substrate having an electrically conductive surface, a hole blocking layer comprising an aminosilane reaction...
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4780386 |
Selenium alloy treatment
A process for preparing an electrophotographic imaging member comprising providing large particles of an alloy comprising selenium, tellurium and arsenic, the large particles having an average...
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4780385 |
Electrophotographic imaging member containing zirconium in base layer
An electrophotographic imaging member is disclosed having an imaging surface adapted to accept a negative electrical charge, the electrophotographic imaging member comprising a metal ground plane...
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4772525 |
Photoresponsive imaging members with high molecular weight polysilylene hole transporting compositions
Photoresponsive imaging members comprised of hole transporting polysilylene compounds with a single peak molecular weight distribution, and wherein the polysilylenes selected have excluded...
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4717635 |
Electrophotographic recording material
An electrophotographic recording material, composed of an electrically conductive substrate; a first layer provided on the electrically conductive substrate and composed of an amorphous...
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4661428 |
Composite photosensitive elements for use in electrophotography and process of forming images using same
A composite photosensitive element for use in electrophotography which comprises an electrically conductive substrate and a first photoconductive layer and second photoconductive layer laminated on...
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4639402 |
Photoreceptor containing selenium particles coated with a reaction product of a hydrolyzed silane
An electrostatographic imaging member comprising a photoconductive layer comprising an organic resin binder and photoconductive particles comprising selenium coated with thin layer of a reaction...
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4619880 |
Electrophotographic light sensitive material contains hydrazone compound
The integrated type electrophotographic light-sensitive material is disclosed, the material comprising two layers comprising (1) an electric charge generating layer containing an electric charge...
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4618551 |
Photoresponsive imaging members with polysilylenes hole transporting compositions
Disclosed is a polysilylene hole transporting compound for use in layered imaging members comprised of ##STR1## wherein R1,R 2, R3, R4, R5, and R6 are independently selected from the group...
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4617248 |
Doped photoconductive film including selenium and tellurium
A structure of a photoconductive film related to a target of an image pickup tube of the photo conductivity type is disclosed. This photoconductive film is formed from mainly Se and Te is added in...
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4582772 |
Layered photoconductive imaging devices
This invention is directed to an improved photoresponsive device comprised in the order stated of (1) a substrate, (2) a transmissive semi-conductive layer selected from the group consisting of...
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4572883 |
Electrophotographic imaging member with charge injection layer
An electrophotographic imaging member is described comprising a substrate, a layer comprising an amorphous hole injecting material selected from the group consisting of halogen doped selenium,...
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4569891 |
Photoconductive material
A multi-layered photoconductive material which comprises first layers containing at least one VIb chalcogen element chosen from S, Se and Te and second layers containing at least one IIb element...
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4559286 |
Mixed squaraine photoconductive compositions
An improved process for the preparation of mixed squaraine compositions which comprises reacting squaric acid, an aromatic amine, and a fluoroaniline, in the presence of an aliphatic alcohol, and...
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4552822 |
Photoconductive devices with hydroxy containing squaraine compositions
Photoresponsive devices, including layered photoresponsive devices comprised of a photoconductive layer of squaraine compositions of the following formula: ##STR1## wherein R1, R2, and R3 are...
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4535468 |
Image converted for X-ray equipment and the like
The invention relates to a photographic apparatus useable, for example, in medical radiodiagnostics, with a three-layer system lying between two electrodes, to which a d-c voltage is applied. The...
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4518671 |
Electrophotographic photosensitive Se or Se alloy doped with oxygen
An electrophotographic photosensitive member has a selenium type photoconductive layer containing 8000 ppm or less oxygen based on selenium. The member is free from a fatigue due to repeated use.
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4457994 |
Photoresponsive device containing arylmethanes
An improved layered photoresponsive device comprised of a substrate, a photogenerating layer, comprised of inorganic photoconductive composition, or an organic photoconductive composition, a charge...
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4442192 |
Photoresponsive device containing an electron donating layer
This invention relates to an improved layered overcoated photoresponsive imaging device useful in a xerographic imaging process employing a single charging step, which device is comprised in the...
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4418136 |
Electrophotographic element comprises arsenic selenide doped with Bi
An electrophotographic element comprising a photoconductive layer consisting essentially of a Bi-containing As2 Se3 layer on an electrically conductive substrate.
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4410616 |
Multi-layered ambipolar photoresponsive devices for electrophotography
This invention is directed to an improved ambipolar photoresponsive device useful in imaging systems for the production of positive images, from either positive or negative originals, which device...
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4407918 |
Electrophotographic process and apparatus for making plural copies from a single image
A photosensitive member is formed by applying on an electrically conductive substrate, a first photoconductive layer sensitive to a visible light, an insulating charge retentive layer, and a second...
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4385105 |
Electrophotographic image carrier structure
An electrophotographic image carrier structure comprises an electrically conductive substrate, a selenium-containing photoconductive layer including more than 35% by weight arsenic, a polyvinyl...
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4384033 |
Process of synthesizing and recording images
A photographic member includes an electrically conductive substrate which carries a pair of photoconductive layers thereon, which are charged to opposite polarities from each other, as will be...
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