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WO/2014/092194A1 |
The photosensitive layer of an electrophotographic photosensitive member contains a phthalocyanine crystal in which a compound represented by the following formula (1) is contained:
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WO/2014/084149A1 |
The present invention relates to an electrophotographic photosensitive member including an undercoat layer containing metal oxide particles, a binder resin, and an organic acid metal salt having at least one metal element selected from t...
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WO/2014/084177A1 |
The purpose of the present invention is to provide an electrophotographic photoreceptor in which the surface layer does not easily become thinner even with use of the electrophotographic photoreceptor and which can prevent occurrences of...
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WO/2014/081046A1 |
An image forming device, which forms an electrostatic image on an electrophotographic photoreceptor by utilizing, as a means of expressing gradations, at least a pseudo-halftone process in which gradations are formed by dots, wherein: mu...
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WO/2014/034960A1 |
Provided are an electrophotographic photosensitive member in which a residual potential hardly increases at the time of image formation, a pattern memory hardly occurs, and the crack of an electro-conductive layer hardly occurs, and a pr...
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WO/2014/034961A1 |
An electrophotographic photosensitive member in which a leak hardly occurs, and a process cartridge and electrophotographic apparatus having the same are provided. The conductive layer in the electrophotographic photosensitive member inc...
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WO/2014/021341A1 |
The purpose of the present invention is to provide an electrophotographic photo-receptor that has excellent wear resistance, demonstrates electrical characteristics, and, in terms of mechanical properties, is less susceptible to filming ...
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WO/2014/021340A1 |
The purpose of the present invention is to provide an electrophotographic photoreceptor that is not liable to cause filming, insufficient cleaning, abnormal noise, and the like, that has excellent abrasion resistance and excellent adhesi...
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WO/2014/003711A1 |
The present disclosure is related to coated photoconductors. In an example, a coated photoconductor can comprise a photoconductor including a substrate having a charge generation layer and charge transport layer adhered thereto and a top...
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WO/2014/002915A1 |
A method for producing an electrophotographic photosensitive member in which leakage hardly occurs is provided. For this, in the method for producing an electrophotographic photosensitive member according to the present invention, a coat...
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WO/2013/191174A1 |
Provided is a polycarbonate copolymer comprising a repeating unit A represented by general formula (1) and a repeating unit B represented by general formula (2), which is characterized in that the abundance ratio represented by Ar1/(Ar1+...
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WO/2013/191209A1 |
The purpose of the present invention is to provide an electrophotographic photoreceptor in which adhesion of a photosensitive layer is very adequately maintained, and in which good electrical characteristics and image characteristics are...
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WO/2013/183526A1 |
The invention has a process of preparing a dispersion liquid by dispersing particles containing a charge transporting substance and a binder resin in liquid medium containing a specific liquid to prepare a dispersion liquid and a process...
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WO/2013/180716A1 |
A method of making a liquid electrophotographic (LEP) paste is disclosed herein. A base paste is made by forming a dispersion of a pigment and a non-polar carrier, adding a transparent resin dispersion to the pigment dispersion to form a...
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WO/2013/157145A1 |
[Problem] To provide a photoreceptor for electrophotography which has high light responsiveness, retains stable electrical properties even when repeatedly used, and has high durability. [Solution] A photoreceptor for electrophotography w...
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WO/2013/147864A1 |
An organic photoconductor includes: a conductive substrate; a charge generation layer formed on the conductive substrate; a charge transport layer formed on the charge generation layer; and a protective coating formed on the charge trans...
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WO/2013/141391A1 |
The present invention provides a method of producing an electrophotographic photosensitive member in which the amount of an organic solvent to be used for a coating solution for a charge transporting layer is reduced, and the stability o...
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WO/2013/137282A1 |
A method of producing an electrophotographic photosensitive member includes: preparing a solution including a charge transporting substance, and at least one compound selected from the group consisting of a fluorine-atom-containing polya...
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WO/2013/128575A1 |
Provided are: a photoreceptor for electrophotography that is capable of reducing the amount of wear on a photoreceptor drum surface, and also capable of reducing wear resistance from the initial stage until after printing, and of obtaini...
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WO/2013/125229A1 |
A polycarbonate copolymer having repeating units of formula (1), the copolymerization ratio represented by Ar2/(Ar1+Ar2) being 30-47 mol%. Ar1 is a group represented by formula (2a) or (2b), and Ar2 is a group represented by formula (3)....
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WO/2013/122671A1 |
A polycarbonate composition for an electrophotographic photoreceptor coating, wherein the polycarbonate includes 1 to 100 mole percent of first units of the formula (I) and 0 to 99 mole percent of one or more second units of the formula ...
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WO/2013/117919A1 |
A method of customising user interaction with a printing system comprising a computing system and a printer. Predetermined actions relating to a printing process initiated on the computing system for printing on the printer are detected....
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WO/2013/099965A1 |
Provided is a polycarbonate copolymer characterized by: having a repeating unit (A) indicated by general formula (1), a repeating unit (B) indicated by general formula (2), and a repeating unit (C) indicated by general formula (3); havin...
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WO/2013/101991A1 |
A method for producing toner according to one example embodiment includes combining and agglomerating a first polymer emulsion with a colorant dispersion and a release agent dispersion to form toner cores. A borax coupling agent is added...
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WO/2013/101995A1 |
A chemically prepared toner composition according to one example embodiment includes a core including a first polymer binder, a colorant and a release agent; a shell that is formed around the core and includes a second polymer binder; an...
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WO/2013/095398A1 |
An alcohol-soluble organic coating including a hole transport material formed on a surface of organic photoconductor is provided. The coating comprises a cationic alternate fluorene-based copolymer with phosphonium salt terminal groups e...
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WO/2013/094712A1 |
In a process for producing an electrophotographic photosensitive member, in particular, a process of forming a charge transporting layer, a production process is provided by which the stability of a charge transporting layer coating flui...
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WO/2013/094548A1 |
Provided are a method of producing an electrophotographic photosensitive member, particularly, a method of producing an electrophotographic photosensitive member and an organic device by which, in a method of forming a charge transportin...
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WO/2013/094497A1 |
A method for producing an electrophotographic photosensitive member has a charge transporting layer, including preparing a first solution containing a specified first liquid, a charge transporting substance and a binder resin, preparing ...
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WO/2013/081170A1 |
Provided are an electrophotographic photosensitive member in which a variation in the light-area potential is suppressed even when the electrophotographic photosensitive member is repeatedly used for a long time in a high-temperature, hi...
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WO/2013/081178A1 |
Provided is an electrophotographic photosensitive member, a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member that can output an image having less image defects due to a ghos...
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WO/2013/081171A1 |
An electrophotographic photosensitive member includes an undercoat layer containing a silane coupling agent having a divalent group represented by -NH- and an urethane resin. The modulus of elastic deformation (we/wt) of a surface of the...
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WO/2013/069417A1 |
Provided are: an electrophotographic photoconductor which exhibits high environmental feasibility (since a binder resin using a cellulose compound of plant origin is utilized as a material of the photosensitive layer), high photoelectric...
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WO/2013/051526A1 |
The present invention provides: an electrophotographic photoconductor which exhibits not only high environmental compatibility (because a binder resin using a plant-originating compound is used as a material for the photosensitive layer)...
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WO/2013/047662A1 |
An electron photosensitive conductor of the present invention is provided with a cylindrical base and a photosensitive layer formed on the cylindrical base. The photosensitive layer has at least a photoconductor layer provided on the cyl...
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WO/2013/042775A1 |
An aromatic amine derivative represented by general formula (1-1). In general formula (1-1), R2-R5 and R7-R10 are each independently a hydrogen atom or a substituent group. In general formula (1-1), R1 and R6 are represented by general f...
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WO/2013/038467A1 |
Provided is a method for manufacturing an electrophotographic receptor, in which both charge-up and a secondary reaction are suppressed at a high level. An electrophotographic receptor is manufactured in such a way that a rectangular wav...
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WO/2013/027654A1 |
A molded article produced by molding a coating solution containing a polycarbonate resin represented by general formula (1) has excellent transparency, good water-repellent properties and oil-repellent properties, a low friction coeffici...
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WO/2013/027616A1 |
A substrate (41) for a photosensitive drum is formed from an uncut metal pipe. In an observation visual field (52) in which an image-forming surface (41aa) of a surface (41a) of the substrate (41) is observed in a visual field having an ...
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WO/2013/021430A1 |
Provided are a high-sensitivity high-endurance digital photograph photoconductor which is applied to a high-resolution, rapid positive charge digital photography device, has superior operating stability, and whereby it is possible to obt...
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WO/2013/018446A1 |
The electrophotographic photosensitive member includes a surface layer containing (α) a polycarbonate or polyester resin not having a siloxane structure at the end, (β) a polycarbonate or polyester or acrylic resin having a siloxane st...
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WO/2013/018450A1 |
The present invention provides a method for producing an electrophotographic photosensitive member, wherein a surface-layer coating solution includes (α) a polycarbonate or polyester resin not having a siloxane moiety at the end, (β) a...
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WO/2013/012092A1 |
An electrophotographic photoconductor including: an electroconductive substrate; a photoconductive layer; and a surface layer, the photoconductive layer and the surface layer being laid over the electroconductive substrate, wherein the s...
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WO/2013/005599A1 |
This aluminum alloy has a composition which contains 0.03 to 0.6 mass% of Si, 0.1 to 0.7 mass% of Fe, 0.05 to 0.20 mass% of Cu, 1.0 to 1.5 mass% of Mn, 0.01 to 0.1 mass% of Mg, 0 to 0.1 mass% of Zn and 0 to 0.1 mass% of Ti with the balan...
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WO/2012/176617A1 |
There are provided an electrophotographic photosensitive member and an intermediate transfer member each having good lubricity and good cleaning property on its surface, a process cartridge and an electrophotographic apparatus each inclu...
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WO/2012/169502A1 |
A toner has a weight-average particle diameter (D4) of 3.0 μm or more and 8.0 μm or less, wherein the average circularity analyzed by dividing particles of the toner having an equivalent circle diameter of 1.98 μm or more and less tha...
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WO/2012/165642A1 |
An electrophotographic photosensitive member in which image deletion is hardly produced, and a process cartridge and electrophotographic apparatus having the electrophotographic photosensitive member are provided. For this, a surface of ...
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WO/2012/147982A1 |
The present invention relates to an electrophotographic photosensitive member including a support and a photosensitive layer formed on the support. The electrophotographic photosensitive member has a surface layer containing a polyarylat...
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WO/2012/140761A1 |
Disclosed is a superior electrophotographic photosensitive body that combines both continued mitigation of contact stress with a contact member or the like and potential stability under repeated use. A charge transport layer, which is th...
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WO/2012/141016A1 |
A charge-transporting layer, which is a surface layer of an electrophotographic photosensitive member, has a matrix-domain structure having a matrix containing constituent β (a polycarbonate resin having a predetermined repeating struct...
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