photoconductor (Total 2210 Patents Found)

Azine derivatives or their combinations with hindered phenol antioxidant in the charge transport layer containing one or more triarylamines or a combination of one triarylamine and one hydrazone improve light fatigue of a photoreceptor, which results in stabilized print quality. The robust performance against light dam...
An electrophotographic photoconductor including: an electroconductive substrate; an intermediate layer; and a photoconductive layer, the intermediate layer and the photoconductive layer being on the electroconductive substrate, wherein the intermediate layer includes an inorganic pigment and a binder resin, wherein a v...
A spatial light modulator includes: a modulating layer having optical properties changeable depending on the strength of an applied electric field; a pair of transparent electrode layers sandwiching the modulating layer for generating the electric field; and a photoconductor layer disposed between one of the pair of tr...
An electrophotographic photoconductor is disclosed, which comprises an electroconductive layer, on which are formed in order, a photoconductive layer, a charge retention layer and a protective layer, optionally an adhesive layer between the charge retention layer and the protective layer, the charge retention layer com...
A replaceable OPC-containing canister is provided for a drum in an EP apparatus, the drum including a canister-receiving receptacle. The OPC-containing canister comprises a housing which includes an elongated slot. An OPC web is wound around a spring-loaded mandrel within the interior of the housing and includes a dist...
A photodetector for detecting megavoltage (MV) radiation comprises a semiconductor conversion layer having a first surface and a second surface disposed opposite the first surface, a first electrode coupled to the first surface, a second electrode coupled to the second surface, and a low density substrate including a d...
An image forming device has a full-color image formation mode to form a color image using color photoconductor drums and a monochrome image formation mode to form a monochrome image using a photoconductor drum. In the image forming device, a driving unit drives rotation of an intermediate transfer belt or a transfer tr...
It is an object of the present invention to provide a wet-developing electrophotographic photoconductor which can be manufactured stably by making use of particular physical property indexes of an electron transport agent and a binding resin and possesses the excellent durability and the excellent solvent resistance an...
An electrophotographic photoconductor including: an outermost layer, wherein the outermost layer comprises an amino group-containing acryl-modified polyorganosiloxane, wherein the amino group-containing acryl-modified polyorganosiloxane is a copolymer in which a polyorganosiloxane represented by the following structura...
A photoconductor drum cleaning apparatus in an electrophotographic printer is disclosed which is simple in makeup, which allows a wiping roll to be rotated to follow rotation of the photoconductor drum is rotated and to be serviced for a prolonged life and is capable of performing an improved cleaning operation. To thi...
Embodiments of a photoconductor for use in a printer or printer cartridge comprise an electrically conductive substrate, a charge generation layer disposed over the electrically conductive substrate, and a charge transport layer disposed over the charge generation layer, wherein the charge transport layer comprises cha...
Selon cette invention, des couches génératrices de charge pour photoconducteurs comprennent un liant et un composé de génération de charge, ledit liant comprenant un mélange de polymère à base de polyvinylbutyral et d'au moins une résine qui améliore au moins une caractéristique électrique d'un phot...
A test method for a coating liquid for an electrophotographic photoconductor includes calculating a peak area ratio of a component to be analyzed in a coating liquid by pyrolysis gas chromatography, and comparing the peak area ratio with a pre-obtained peak area ratio of the component in a reference coating liquid havi...
Disclosed is an electrophotographic photoconductor including at least a photoconductive layer on a conductive substrate, wherein the surface layer of the photoconductive layer contains at least a surface crosslinked layer formed by curing a tri- or more-functional radical polymerizable monomer without having a charge t...
An electrophotographic photoconductor system for use in an electrophotographic device and method of using the same. The electrophotoconductor system comprises an electroconductive support, a charge generation layer disposed on the electroconductive support, and a charge transport layer disposed on the charge generation...
A shaft member holding mechanism comprising: a shaft member arranged rotatably about a rotation axis; a bearing that supports the shaft member rotatably, including an outer ring portion, and an inner ring portion that holds the shaft member and is arranged at an inside of the outer ring portion so that the inner ring p...
Embodiments of photoconductors and methods of making photoconductors for electophotography are described, each embodiment comprising a complex between metal oxide phthalocyanine compound(s) and hydroxy compound(s). A metal oxide phthalocyanine pigment exhibits extended photoresponse between 850 nm and 1000 nm when it i...
An electrophotographic photoconductor is composed of an electroconductive support, and a photoconductive layer formed on the electroconductive support, which contains a charge generating material and a charge transporting material consisting of an α-cyanostilbene compound of formula (I): ##STR1## wherein R 1 and R 2 ...
A repeatedly usable electrophotographic photoconductor comprising (a) an electroconductive support, (b) an undercoat layer containing therein at least one salt selected from the group consisting of carboxylates, amino carboxylates, phosphates, polyphosphates, phosphites, phosphate derivatives, borates, sulfates and sul...
A method of producing an aromatic polycarbonate resin includes the step of carrying out solution polymerization of a diphenol compound having a triarylamine structure with a diol compound of formula (I): wherein R 1 and R 2 are each independently a substituted or unsubstituted alkyl g...
An electrophotographic photoconductor includes an electroconductive substrate, a photoconductive layer arranged over the electroconductive layer with or without the interposition of an undercoat layer, and a surface top layer containing a crosslinkable resin arranged over the photoconductive layer, the photoconductive ...
A layered electrophotographic photoconductor whose charge generation layer comprises a bisazo pigment selected from the group consisting of the bisazo pigments represented by formula (1) and whose charge transport layer contains a charge transport material selected from the group consisting of anthrancene compounds rep...
The present invention provides a single layer type electrophotographic photoconductor which exhibits the small number of generated black spots in a formed image and exhibits the excellent sensitivity characteristic even when the photoconductor is used for a long time or a photoconductor drum is rotated at a high speed ...
A photoconductor coupled liquid crystal light valve comprising a photoconductor layer, a liquid crystal layer and electrodes for applying voltage to the layers. The photoconductive layer is made of amorphous silicon containing hydrogen and/or halogen at more than 40 at%. The photoconductive layer preferably has a resis...
A clamping and tensioning system for securing a sheet of photoconductor film to an outer circumferential surface of a carrier drum includes a clamp rod mounted to the carrier drum by first and second mounting blocks. The first and second mounting blocks include elongated slots that allow the clamp rod to rotate about i...
An electrophotographic photoconductor having at least a photoconductive layer on an electrically conductive support, in which a surface layer of the photoconductive layer can be obtained by curing at least a free-radical-polymerizable monomer having no charge transporting structure, represented by general formula (A) ...
The present invention provides a diphenyl amine derivative having the excellent solubility to a solvent and compatibility to a binding resin, an efficient production method therefor, and an electrophotographic photoconductor having the excellent sensitivity, capable of effectively preventing generation of the black dot...
(57)【要約】 【課題】 安定した特性を有する電荷輸送性高分子 材料の精製法、並びにそれを用いて電子写真特性の安定 した電子写真感光体を提供する。 【解決手段】 水と混合しない有機溶媒に溶解させた電 荷輸送性高分子材料を、...
A positively-chargeable single-layered type organic electrophotographic photoconductor composed of an electroconductive support and an organic single-layered photoconductive layer containing a charge generating material, an organic positive hole transporting material and an organic acceptor compound which are dispersed...
An electrophotographic photoconductor includes an electroconductive support, and a photoconductive layer formed thereon containing as an effective component an aromatic polycarbonate resin having a repeat unit of formula (I), or two repeat units of formula (II) and formula (III): ##STR1## wherein n, Ar 1 , Ar 2 , Ar 3 ...
A photoconductor is provided. The photoconductor includes a support, an undercoat layer overlying the support, and a photosensitive layer overlying the undercoat layer. The undercoat layer includes a binder resin and a zinc oxide particle. The photosensitive layer includes a compound represented by the following formul...