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JP2022158293A |
To provide an electrophotographic photoreceptor that has good adhesion between an undercoat layer and a photosensitive layer and good dispersion of metal oxide particles in the undercoat layer; a process cartridge; and an electrophotogra...
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JP2022159223A |
To provide a resin which is capable of polymer reaction and has an anthracene structure to be a reactive group.The resin is at least one resin selected from the group consisting of aromatic polycarbonates and polyarylates, and comprises ...
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JP2022155779A |
To provide an electrophotographic photoreceptor with which memory (charge accumulation) is suppressed, and a process cartridge and an electrophotographic device including the electrophotographic photoreceptor.Provided is an electrophotog...
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JP2022154942A |
To provide a novel electrophotographic photoreceptor which offers enhanced wear resistance without increasing the thickness of a protective layer and, in particular, prevents wear of ends of the photosensitive photoreceptor when used in ...
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JP7151434B2 |
To provide an electrophotographic photoreceptor that, when a protective layer is increased in thickness, is excellent in thin line reproducibility and transfer memory, prevents the occurrence of cleaning failure and image deletion in the...
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JP7151492B2 |
To provide a long-life and highly reliable electrophotographic photoreceptor in which uneven shrinkage thereof due to a deviation of film thickness in the longitudinal direction of the photoreceptor is suppressed and which therefore allo...
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JP7150485B2 |
An electrophotographic photosensitive member suppressing potential variation due to repeated use is provided. The electrophotographic photosensitive member is an electrophotographic photosensitive member including a support, a photosensi...
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JP2022150036A |
To provide an electrophotographic photoreceptor that can prevent a reduction in the uniformity of image density when image formation is continuously performed and then suspended, and image formation is performed again.An electrophotograp...
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JP2022151285A |
To provide an electrophotographic photoreceptor that prevents the generation of color points while reducing wear of a photosensitive layer.An electrophotographic photoreceptor has a conductive substrate, and a single-layer photosensitive...
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JP2022151293A |
To provide an electrophotographic photoreceptor that can prevent a variation in charge transport ability caused by a discharge product and can prevent an increase in potential after exposure when used for a long period.An electrophotogra...
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JP2022148136A |
To provide a polyarylate resin which is excellent in dissolubility in a solvent, and improves repeated sensitivity characteristics and abrasion resistance of a photoreceptor when contained in a photosensitive layer.A polyarylate resin ha...
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JP2022148911A |
To suppress generation of a defect in a coating film on a substrate surface as compared to a configuration in which a lower opening of a substrate is blocked by an insertion part.A coating film wiping jig 62 of a coating film wiping devi...
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JP2022147571A |
To obtain a coating device capable of preventing occurrence of defect resulting from bubbles in a coating film on the surface of a substrate comparing to the device in which the inside R or C chamfer and outside R or C chamfer in the top...
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JP2022148912A |
To provide a coating device and a coating method for suppressing unevenness in coating of a surface of a substrate, compared with a configuration in which only a vaporization suppression member is arranged.A coating device 10 comprises: ...
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JP2022147570A |
To reduce variation in the degree of dispersion of fine particles contained in ingredients of an electronic device coating material compared to the case where a tank body has only one rotatable impeller.An apparatus 10 for producing an e...
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JP7146459B2 |
To provide an electrophotographic photoreceptor in which generation of a charging lateral stripe and generation of a black spot are suppressed in repetitively using for a long period under a low temperature and low humidity environment.A...
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JP2022140388A |
To provide a process cartridge that achieves both low torque and cleanability.A process cartridge comprises: a drum-shaped electrophotographic photoreceptor that has a support and a photosensitive layer; developing means for developing a...
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JP2022140250A |
To provide an electrophotographic photoreceptor that achieves suppression of both toner slipping and toner fusion in a high temperature and high humidity environment.On a photoreceptor having wrinkles in an outer surface, square observat...
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JP7140101B2 |
The object of the present invention is to provide a positive charging electrophotographic photoreceptor having high sensitivity, low residual potential, and excellent chargeability, and relates to a positive charging electrophotographic ...
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JP7135619B2 |
To provide an electrophotographic photoreceptor excellent in sensitivity characteristics.An electrophotographic photoreceptor 1 comprises: a conductive substrate 2; and a single-layer photosensitive layer 3. The photosensitive layer cont...
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JP2022133187A |
To provide an electrophotographic image forming apparatus that suppresses occurrence of stripe-like banding formed in a same direction as a major axis direction of an electrophotographic photoreceptor.An electrophotographic photoreceptor...
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JP2022133186A |
To provide an electrophotographic photoreceptor that is excellent in image deletion resistance and low torque while maintaining electrophotographic characteristics.An electrophotographic photoreceptor has a photosensitive layer and a pro...
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JP7135652B2 |
To provide an electrophotographic photoreceptor which minimizes optical sensitivity deterioration that tends to occur after repetitively forming images thereon.An electrophotographic photoreceptor disclosed herein comprises a conductive ...
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JP7135347B2 |
To provide an electrophotographic photoreceptor that prevents a reduction in electrostatic property and an increase in residual potential occurring when repeated images are formed.An electrophotographic photoreceptor 7A comprises: a cond...
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JP2022131948A |
To provide an electrophotographic photoreceptor that suppresses an image defect resulting from a support and has a small long-term potential variation.In an electrophotographic photoreceptor having a cylindrical support and a photosensit...
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JP2022132142A |
To provide an electrophotographic photoreceptor that can prevent unevenness in a surface direction of an output image through repeated image formation.In an electrophotographic photoreceptor having a cylindrical support and a photosensit...
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JP7129225B2 |
A method for producing an electrophotographic photosensitive member having a photosensitive layer and a protective layer above a support in this order includes: forming a coating film for a protective layer by coating a coating liquid fo...
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JP7129238B2 |
Provided are an electrophotographic photosensitive member including a support and a photosensitive layer above the support, in which a surface layer of the electrophotographic photosensitive member includes a polymerization product of a ...
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JP2022124375A |
To provide an electrophotographic photoreceptor which is less susceptible to transfer ghosts even when installed in an electrophotographic device with transfer voltage set to a high level for high-speed processing or cleanerless processi...
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JP7124560B2 |
To provide a new charge transporting resin.A charge transporting resin has a structure represented by general formula (1) and has a weight average molecular weight of 2,000 or more and 500,000 or less. In general formula (1), A represent...
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JP7118793B2 |
An electrophotographic photosensitive member includes, in sequence, a support, a conductive layer, an undercoat layer, a charge generation layer, and a charge transport layer. The conductive layer is a cured film, and the cured film cont...
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JP7118762B2 |
To provide an inspection method that identifies a concave-convex defect of an intermediate layer of an electrophotographic photoreceptor.In an inspection mechanism that comprises: supporting means that rotates a cylindrical electrophotog...
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JP2022117569A |
To provide an image forming method with which, when using an ink having high thixotropy and discharging the ink circulating it in the vicinity of a nozzle, it is possible to suppress a change in ink viscosity at discharge time and unifor...
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JP2022117736A |
To reduce variations in a surface potential in the axial direction during the electrification of a photoreceptor drum.An electrophotographic photoreceptor 10 includes, in order from the outermost surface side, a surface protective layer ...
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JP7115116B2 |
An electrophotographic photoconductor is provided. The electrophotographic photoconductor includes a conductive substrate, a photosensitive layer, and a surface layer containing fluororesin particles, non-fluororesin particles, and a cur...
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JP7115320B2 |
An object of the present invention is to provide an electrophotographic photoreceptor which can prevent an increase in potential even using a fluorine resin in a charge transport layer, and can achieve both electrical properties and abra...
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JP7115002B2 |
To provide an electrophotographic photoreceptor that prevents the occurrence of a dot defect when repeated images are formed under a high-temperature and high-humidity environment.An electrophotographic photoreceptor comprises: a conduct...
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JP7114403B2 |
To provide a manufacturing method for an electrophotographic photoreceptor with which it is possible to achieve both potential stability and leak resistance.Provided is a manufacturing method for an electrophotographic photoreceptor comp...
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JP7114408B2 |
To provide a simple manufacturing method of xerographic photoreceptor superior in abrasion resistance and lubricity, which contains either one of acrylic resin particles and melamine resin particles in the surface layer.The manufacturing...
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JP7114390B2 |
To provide an electrophotographic photoreceptor that attains an excellent durability and a resistance to scratches at the same time.An electrophotographic photoreceptor includes a surface layer having a charge transporting substance; a p...
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JP2022112543A |
To provide an electrophotographic photoreceptor for contact electrification that is excellent in wear resistance and crack resistance and suppresses occurrence of filming, and an image forming method using the same, which is the problem ...
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JP2022112265A |
To provide an electrophotographic photoreceptor that is excellent in print resistance, has high mechanical strength, and prevents the occurrence of an image defect associated with chipping of an edge part of a cleaning blade and uneven l...
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JP7111594B2 |
To reduce unevenness in density of a toner image.An image forming apparatus 1 comprises: a corona charger 20 that applies a voltage to a stretched wire electrode to perform discharging; and a photoreceptor drum 10 that is arranged below ...
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JP7110844B2 |
The electrophotographic photoreceptor includes a conductive support, a photosensitive layer disposed on the conductive support, and an outermost layer disposed on the photosensitive layer, in which the outermost layer includes a cured pr...
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JP2022106478A |
To provide an image forming system that can obtain a satisfactory image for a long period without causing toner filming on a surface of a photoreceptor.An electrophotographic image forming system includes the steps of: forming an electro...
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JP7098468B2 |
To provide an inspection method that can highly accurately detect a substance (a substance equal to or less in a band gap than 1.2 eV) high in electrical conductivity.An inspection method identifies a substance equal to or less in a band...
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JP2022103887A |
To provide an image forming method with which an image with high design properties can be formed with photoluminescent toner without causing filming and poor cleaning on an electrophotographic photoreceptor.An image forming method includ...
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JP2022102967A |
To increase an ability to move a foreign substance to an upstream-side image carrier to reduce the amount of foreign substance moving to a downstream-side image carrier, thereby preventing an image defect caused by the foreign substance ...
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JP7094781B2 |
To sufficiently improve wear resistance to prevent an increase in torque and an increase in temperature caused by rubbing between a cleaning blade and a photoreceptor associated with an increase in speed/elongation of a life.In a process...
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JP2022098420A |
To provide: an electrophotographic photoreceptor that has sufficiently high sensitivity and excellent potential stability during repeated printing in various environments, and does not cause problems, such as deterioration of gradation o...
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