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JP2024049204A |
[Problem] To provide an electrophotographic photoreceptor that suppresses the occurrence of image quality unevenness. The present invention includes a conductive substrate, an organic photosensitive layer, and an inorganic protective lay...
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JP2024049289A |
An object of the present invention is to provide an electrophotographic photoreceptor that suppresses minute colored lines that occur when contact charging is applied with a DC voltage. The present invention includes a conductive substra...
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JP2024047678A |
An object of the present invention is to provide an electrophotographic photoreceptor that suppresses image density unevenness in the circumferential direction of the photoreceptor caused by uneven drying in a photosensitive layer. [Solu...
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JP2024047414A |
[Problem] To provide an electrophotographic photoreceptor that suppresses charging unevenness and has excellent charge maintenance properties. [Solution] A conductive substrate and an undercoat layer provided on the conductive substrate,...
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JP2024047412A |
An object of the present invention is to provide an electrophotographic photoreceptor that has excellent fine line reproducibility and suppresses positive ghosting and peeling of an undercoat layer. The present invention includes a condu...
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JP2024047413A |
An object of the present invention is to provide an image forming apparatus with excellent potential maintenance properties and image density maintenance properties of a photoreceptor. [Solution] The outermost layer contains a binder res...
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JP2024046538A |
An object of the present invention is to provide an image forming apparatus with excellent image quality. [Solution] An electrophotographic photoreceptor is provided with a conductive substrate, a photosensitive layer, and an inorganic s...
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JP2024044630A |
An object of the present invention is to provide an electrophotographic photoreceptor in which positive ghosts are suppressed, a process cartridge having the electrophotographic photoreceptor, and an electrophotographic apparatus. [Solut...
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JP2024044623A |
An object of the present invention is to provide an electrophotographic photoreceptor in which ghosts are suppressed in high-speed processes by using a hole charge transport material that has spatial expansion of HOMO orbits and uniformi...
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JP2024044123A |
An object of the present invention is to provide an electrophotographic photoreceptor in which peeling of an inorganic protective layer from the surface of a photosensitive layer on the interface side with the inorganic protective layer ...
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JP7459602B2 |
To provide an electrophotographic photoreceptor that can prevent a residual potential and the occurrence of a stripe-like image defect that are caused by rubbing of a photoreceptor and its contact member with each other due to vibration....
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JP2024044626A |
An object of the present invention is to provide an electrophotographic photoreceptor that suppresses potential fluctuations due to repeated use even in an electrophotographic apparatus with a high printing process speed. [Solution] An e...
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JP2024043372A |
An object of the present invention is to provide an electrophotographic photoreceptor that suppresses the occurrence of unintended image shading in formed images when images are continuously formed. The present invention includes a condu...
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JP7452356B2 |
To provide an image forming apparatus that can satisfactorily positively electrify an image carrier even when positive electrification and negative electrification of the image carrier are repeated.An image forming apparatus 110 comprise...
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JP7452167B2 |
An electrophotographic photoreceptor includes a conductive substrate and a photosensitive layer on the conductive substrate. The electrophotographic photoreceptor has an outermost surface layer that contains fluorine-containing resin par...
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JP2024037542A |
An object of the present invention is to provide an electrophotographic photoreceptor that suppresses the occurrence of image deletion. [Solution] The inorganic protective layer has a conductive substrate, a photosensitive layer, and an ...
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JP7449151B2 |
There is provided an electrophotographic photosensitive member having drum shape, the electrophotographic photosensitive member including a support and a photosensitive layer, wherein an outer surface of the electrophotographic photosens...
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JP2024030136A |
[Problem] Even when installed in an electrophotographic device with a high transfer voltage set for high-speed processes or cleaner-less processes, the surface An electrophotographic photoreceptor in which an increase in residual potenti...
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JP2024031819A |
An object of the present invention is to provide an electrophotographic photoreceptor that can reduce residual potential and further reduce bright area potential fluctuations during short-term use. [Solution] An electrophotographic photo...
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JP7443827B2 |
Provided are an electrophotographic photoconductor being resistant to abrasion even in long-term use, having highly sensitive electric characteristics, being capable of maintaining a high retention rate, and being capable of providing a ...
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JP7444691B2 |
A method for producing an electrophotographic photosensitive member including: forming a photosensitive layer; and forming a protective layer, wherein the step of forming the photosensitive layer forms a photosensitive layer having an am...
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JP7443810B2 |
To provide an image forming method and an image forming system that can prevent excessive electrification of a toner for electrostatic charge image development in a low temperature and low humidity environment and improve thin line repro...
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JP7443922B2 |
To provide an electronic device that can prevent unevenness in deposition of a metal oxide layer and has high uniformity in the thickness of the metal oxide layer.An electronic device has a support, a charge transport layer including a c...
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JP2024027443A |
The present invention is capable of suppressing wear of an electrophotographic photoreceptor and reducing external additive filming. [Solution] An electrophotographic photoreceptor having a photosensitive layer constituting a surface, a ...
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JP2024027003A |
An object of the present invention is to provide an image forming apparatus that is excellent in suppressing the occurrence of color streaks in an obtained image in the case of a contact charging method in which only a DC voltage is appl...
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JP2024027077A |
An object of the present invention is to provide an electrophotographic photoreceptor having a surface layer that has excellent dispersibility of fluorine atom-containing resin particles and suppresses potential fluctuations during repea...
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JP7439830B2 |
The present invention relates to an electrophotographic photoreceptor having a plurality of layers containing at least one outermost layer, wherein at least one of the outermost layer contains a polymer having a first structure where at ...
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JP2024025130A |
An object of the present invention is to provide an image forming apparatus that can maintain cleanability over a long period of time. An image forming apparatus includes an image carrier on which a toner image is placed, and an applicat...
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JP2024024508A |
An object of the present invention is to provide an electrophotographic photoreceptor with excellent image quality stability. [Solution] An electrophotographic photoreceptor includes a conductive substrate, a laminated photosensitive lay...
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JP7435839B2 |
Provided is a photoelectric conversion device including: a support; a charge-transporting layer including an organic charge-transporting material or a sensitizing dye electrode layer including an organic sensitizing dye, where the charge...
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JP2024023935A |
An object of the present invention is to provide an electrophotographic photoreceptor that can maintain charging ability during repeated use. [Solution] An electrophotographic photoreceptor having a support, a conductive layer, a photose...
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JP7434624B2 |
An image forming apparatus including: an image bearing member; a developing member to supply a developer to the image bearing member; and a cleaning member to clean a peripheral surface of the image bearing member in contact with the per...
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JP7433867B2 |
An image forming apparatus comprising an electrophotographic photosensitive member and a developing device for supplying a toner onto the electrophotographic photosensitive member, the developing device having the toner, wherein the elec...
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JP2024021867A |
An object of the present invention is to provide an electrophotographic photoreceptor that can obtain sufficient photosensitivity characteristics even when the speed of an image forming process is increased. The electrophotographic photo...
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JP2024021871A |
An object of the present invention is to provide an electrophotographic photoreceptor that suppresses the occurrence of cracks in an undercoat layer after being placed in a high-temperature, high-humidity environment. [Solution] An elect...
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JP2024019935A |
An object of the present invention is to provide an electrophotographic photoreceptor that has both wear resistance and suppression of filming. [Solution] An electrophotographic photoreceptor includes a conductive substrate, a laminated ...
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JP7430112B2 |
The present invention provides an electrophotographic photoreceptor including at least a laminated photoreceptive layer in which a charge generating layer containing a charge generating substance and a charge transporting layer containin...
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JP2024017241A |
The present invention provides an image forming apparatus that can both extend the life of a photoreceptor drum and maintain stable image characteristics over a long period of time. A photosensitive drum 10 contains inorganic compound pa...
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JP2024016632A |
An object of the present invention is to provide an electrophotographic photoreceptor that can suppress short-term fluctuations in bright area potential in a high temperature and high humidity environment. [Solution] An electrophotograph...
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JP2024016634A |
An object of the present invention is to provide an electrophotographic photoreceptor that suppresses image defects caused by a support and is less likely to cause pressure scratches. An electrophotographic photoreceptor comprising a cyl...
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JP2024016626A |
An object of the present invention is to provide an electrophotographic photoreceptor in which peeling between an undercoat layer and a support is suppressed after storage in environments with large temperature and humidity changes such ...
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JP2024016629A |
An object of the present invention is to provide an electrophotographic photoreceptor that can suppress short-term fluctuations in bright area potential. An electrophotographic photoreceptor comprising a cylindrical support, an undercoat...
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JP7427550B2 |
To provide a process cartridge and an electrophotographic device that reduces fogging to reduce toner consumption.A process cartridge is configured to be removably attached to a main body of an electrophotographic device, and has develop...
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JP2024013572A |
An object of the present invention is to provide an image forming apparatus having a contact type charging device that can suppress streak-like image defects that occur after being left unused for a long period of time, and an image form...
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JP2024013620A |
The present invention provides an electrophotographic photoreceptor that suppresses dot-like image defects. The present invention includes a conductive substrate, a subbing layer provided on the conductive substrate and containing a bind...
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JP2024014422A |
An object of the present invention is to provide an electrophotographic photoreceptor in which burn-in ghosts are less likely to occur and toner adhesion to the surface of the electrophotographic photoreceptor is suppressed. [Solution] A...
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JP7425669B2 |
To provide an electrophotographic photoreceptor that reduces the likelihood of the occurrence of a problem in thin line reproducibility in output of images at high resolution, while maintaining satisfactory electrical characteristics.An ...
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JP7425780B2 |
To provide an electrophotographic photoreceptor that can suppress blur of dots forming an output image.An electrophotographic photoreceptor has a cylindrical support and a photosensitive layer, and a surface of the support is formed of A...
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JP7425582B2 |
To provide an electrophotographic photoreceptor with good wear resistance and electrical properties.An electrophotographic photoreceptor comprising a support body and a single-layered photosensitive layer is provided, the single-layered ...
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JP7424905B2 |
To provide a coating liquid for an undercoat layer that can prevent an increase in viscosity during dispersion, is excellent in dispersibility and stability over time, has satisfactory coating properties on a surface of a conductive supp...
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