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WO/2010/098414A1 |
An electrophotographic photosensitive member for use in the image forming method is formed by sequentially stacking a lower photoconductive layer and an upper photoconductive layer formed of a-Si and a surface layer formed of a-SiC in th...
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WO/2010/092695A1 |
Provided is a photoreceptor for electrophotography in which the photoreceptor drum surface can have reduced frictional resistance throughout the period from the beginning to after printing. The photoreceptor is reduced in wear and can gi...
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WO/2010/087520A1 |
To provide an electrophotographic photosensitive member that can reproduce good images with less positive ghost and also has a good photosensitivity, the electrophotographic photosensitive member is incorporated in its photosensitive lay...
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WO/2010/079698A1 |
Disclosed is a urethane-type polycarbonate resin which utilizes strong hydrogen bonds between urethane groups and has high wear resistance. Specifically disclosed is a polycarbonate resin having a repeating unit represented by general f...
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WO/2010/074099A1 |
An image-forming method is provided which enable high-quality images to be formed over a long time period. In the image-forming method, an electrophotographic photosensitive member is used having a surface layer formed of a hydrogenated ...
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WO/2010/071118A1 |
Disclosed is an electrophotographic photosensitive body, which is free from image defects such as background fogging or black spots on the white background by having good coating liquid stability and good metal oxide dispersion, and has ...
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WO/2010/067832A1 |
An electrophotographic apparatus and a process cartridge include an electrophotographic photosensitive member; a developing unit; and a cleaning unit, wherein depressed portions separated from each other and satisfying conditions below a...
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WO/2010/064585A1 |
Disclosed is an electrophotographic photoreceptor which is equipped with an undercoating layer capable of attaining stable potential characteristics in all environments ranging from low temperature and low humidity environments to high t...
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WO/2010/064591A1 |
Disclosed is a pipe cutting machine (1) equipped with a notching device (10) having a rotary cutting blade (11) which forms on the exterior of a pipe (60) a notched portion (61) which is used for breaking, and a breaking device (20) whic...
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WO/2010/044475A1 |
A dip-coating process includes immersing a member to be coated in a coating solution in a coating vessel and lifting the member to be coated while covering a side surface of the member to be coated with a telescopic sliding hood to form ...
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WO/2010/035882A1 |
An electrophotographic photosensitive member having a surface layer which contains a silicon-containing compound in an amount of less than 0.6% by mass based on the whole solid content in the surface layer, where the silicon-containing c...
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WO/2010/035683A1 |
Disclosed is an electrophotographic photoreceptor that causes little or no abrasion-derived uneven image density and does not cause scratches and image defects attributable to the occurrence of scratches even after a large volume, for ex...
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WO/2010/028725A1 |
The invention relates to an electronic device, particulary photoreceptor or electrophotographic device, comprising an organic function material, which comprises an electron transport component and a hole trap component, to an organic mat...
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WO/2010/028726A1 |
The invention relates to the use of a copolymer comprising indenofluorene units as charge transport material in the charge transport layer of a non- electroluminescent electronic device, especially a photoreceptor or electrophotographic ...
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WO/2010/029877A1 |
Disclosed is an electrophotographic photosensitive body which does not cause image defects such as black spots and image unevenness when image exposure is performed using light having a wavelength of 350-500 nm, which is so-called short-...
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WO/2010/024060A1 |
Disclosed is an organic photoreceptor that exhibits a high level of thin line reproducibility in a small-diameter exposure spot, causes no significant variation in an exposure potential in the repetition of image formation at a high spee...
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WO/2010/018725A1 |
An organic photosensitive material has a photosensitive layer on a conductive support body, and the photosensitive layer has a protective layer. The protective layer is formed of alumina particles having a reactive organic group. It is...
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WO/2010/010971A1 |
Provided is an image-forming method, the method including: forming an electrostatic image on an electrostatic image bearing member which has been charged; developing the electrostatic image to form a toner image; transferring the toner i...
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WO/2010/011230A1 |
A digital-printing substrate and method 200 of improving adhesion of a substrate to an liquid electrophotographic (LEP) ink in LEP printing both employ a composite coating 100. The composite coating 100 includes from 4.5% to 9.5% by weig...
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WO/2010/007930A1 |
Disclosed is an ethylene compound that can suppress a photo-deterioration, causes no significant light-induced fatigue, can prevent a rise in residual potential caused by the light-induced fatigue, can stably maintain properties as a pho...
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WO/2010/008095A1 |
Disclosed is an electrophotographic photoreceptor that can continually exhibit the effect of relaxing stress of contact with a contact member or the like and, at the same time, has an excellent potential stability during repeated use. A...
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WO/2010/008094A1 |
Disclosed is an electrophotographic photoreceptor that can continually exhibit the effect of relaxing stress of contact with a contact member or the like and, at the same time, has an excellent potential stability during repeated use. A...
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WO/2010/005820A1 |
An endless belt for use in digital imaging systems is provided having edge to edge uniform flatness, and precise circumferential and edge to edge thickness. The layers comprising the belt may be tailored as desired for use in either imag...
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WO/2009/145262A1 |
Disclosed is a positive electrification laminate-type electrophotographic photoreceptor having excellent durability and cost effectiveness. Also disclosed is a process for producing the photoreceptor. The electrophotographic photorecept...
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WO/2009/142164A1 |
Disclosed is an electrophotographic photoreceptor for negative electrification that is free from a problem of an increase in residual potential and does not cause an insulation breakdown-derived pinhole even under two-component developme...
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WO/2009/133747A1 |
Disclosed is an electrophotographic photoreceptor that is less likely to cause cracking even when the photoreceptor drum and the peripheral members thereof are recycled or when used in a liquid development process, whereby good images ca...
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WO/2009/125856A1 |
An image formation device includes a charging device that charges an image carrier, an exposing device that exposes the image carrier to form an electrostatic image, a developing device that includes a developing agent carrier that carri...
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WO/2009/107299A1 |
[PROBLEMS] To provide an image forming apparatus which does not likely generate image defects and color slippages. [MEANS FOR SOLVING PROBLEMS] An image forming apparatus comprises a photoreceptor (10) on which an electrostatic latent im...
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WO/2009/104571A1 |
Provided are an electrophotographic-photosensitive element and an electrophotographic device, which are used in a high speed/resolution color machine of a positively charging type and which are excellent in dot-reproducibility and gradua...
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WO/2009/104466A1 |
Disclosed is an electrophotographic photosensitive body (2) comprising a conductive base (20) and a coating layer (21) covering the conductive base (20). The coating layer (21) comprises a photosensitive layer (22) and an amorphous sili...
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WO/2009/096552A1 |
An electrophotographic photoreceptor (2) is provided with a conductive substrate (20) and a coating layer (21) which coats the conductive substrate (20). The coating layer (21) includes a photosensitive layer (22), a pressure-resistant l...
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WO/2009/082583A2 |
An organic composition is provided which comprises a non-polymeric charge transport material being one of a hole transport material and an electron transport material; a polymeric charge transport material being one of a hole transport m...
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WO/2009/075543A2 |
Disclosed herein is a transfer belt for an image forming apparatus comprising (A) a base layer comprising a thermoplastic resin; and (B) a surface layer comprising a thermoplastic resin composite in which a carbon nanotube is dispersed, ...
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WO/2009/076633A1 |
A method for producing toner, and a toner composition, which includes polymer binder and a release agent composition that has relatively high viscosity and associated melting characteristics that improve filming resistance and/or fusing ...
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WO/2009/072637A1 |
This invention provides an electrophotographic photoreceptor, which can suppress both a long-term fluctuation in potential and a short-term fluctuation in potential, a process for producing the electrophotographic photoreceptor, a proces...
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WO/2009/072667A1 |
There is provided a temperature control unit for an electrophotographic photoconductor substrate, containing a stretchable membrane member which is detachably disposed in a hollow space of the cylindrical substrate, wherein the membrane ...
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WO/2009/073880A1 |
The present disclosure relates generally to chemically prepared toner (CPT) that employs a regulated cooling process subsequent to coalescence and fusing. The cooling process may influence the distribution of domain morphology of the com...
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WO/2009/070226A1 |
The present invention is directed to an electrophotographic element that comprises: an electrically conducting layer, a charge generating layer overlying the electrically conducting layer, and a charge transport layer overlying the elect...
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WO/2009/060844A1 |
Disclosed is a method for anodizing an aluminum pipe for a base of a photoconductor drum, characterized by bringing an electrolysis solution (6) into contact with the outer circumferential surface of an aluminum pipe (2) for a base of a ...
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WO/2009/038202A1 |
This invention provides a toner, which, while suppressing contamination of an image white ground part attributable to the proportion of presence of fines having a particle diameter of not more than a specific value, residual images (ghos...
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WO/2009/028448A1 |
[PROBLEMS] A negative charging electrophotographic photosensitive body enabling prevention of degradation of image quality attributed to the residual potential while adequately maintaining the contrast of the formed image. [MEANS FOR SOL...
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WO/2009/017207A1 |
Disclosed is an electrophotographic photoreceptor (10) which comprises a base material (18) and a photoconductive layer (19B). The photoconductive layer (19B) is formed on the base material (18), and comprises a non-single-crystal materi...
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WO/2009/014262A1 |
Provided are an electrophotographic photosensitive element which is suppressed, when used for a long time, in a recovery toner leakage from its end portion region and which is excellent in durability, and a process cartridge and an elect...
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WO/2009/011072A1 |
A process for producing an electrophotographic photoreceptor provided at its surface with a configuration of depressions stably in high productivity. The process is characterized in that providing a coating liquid for surface layer conta...
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WO/2009/005727A2 |
Photoconductor structure 10 processing methods and imaging device 20 photoconductor structures 10 are described. According to one embodiment, a photoconductor structure 10 processing method includes processing a photoconductor structure ...
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WO/2009/001925A1 |
This invention provides an electrophotographic photoreceptor, which has excellent electric characteristics and, even when repeatedly used for a long period of time, can stably form good images having a high resolution and a good quality,...
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WO/2008/153105A1 |
An image-forming apparatus and a cartridge which inhibit troubles attributable to toner particle size distribution or toner/photoreceptor matching, such as a white-background fouling, afterimage, scattering, streaks, blurring, and blind ...
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WO/2008/153084A1 |
An electrophotographic photoreceptor comprising a conductive support and a photosensitive layer formed thereon, wherein the photosensitive layer comprises a polyarylate resin having a repeating structure represented by the following form...
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WO/2008/140452A1 |
Conjugationally extended hydrazine compositions of the formula (RR2)N(H)n(NH2)n, fluorescent hydrazone compositions of the formula (RR2)NN=C (R1R2), methods of the formation of hydrazones from the reaction of conjugationally extended hyd...
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WO/2008/136521A1 |
Disclosed is a polycarbonate polymer containing a monomer unit represented by the formula (1A) below and a monomer unit represented by the formula (2) below. The haze value of a solution which is obtained by dissolving the polycarbonate ...
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