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JP2023118072A |
To provide an electrophotographic photoreceptor comprising a surface layer that suppresses electric potential variations associated with repetitive use.An electrophotographic photoreceptor is provided, comprising a surface layer containi...
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JP2023117805A |
To provide a good electrophotographic photoreceptor which offers superior wear resistance and is free from photomemory, and an electrophotographic device having the same.An electrophotographic photoreceptor provided herein offers improve...
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JP2023117813A |
To provide an electrophotographic photoreceptor comprising a surface layer that offers superior wear resistance, suppresses image defects due to poor dispersibility of fluorine atom-containing resin particles, and suppresses electric pot...
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JP2023117819A |
To provide an electrophotographic photoreceptor which comprises a surface layer that features superior dispersibility of fluorine atom-containing resin particles and suppresses electric potential variations associated with repetitive use...
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JP7331630B2 |
To provide an electrophotographic photoreceptor that is excellent in wear resistance and prevents random lateral stripes in a formed image.A photosensitive layer included in an electrophotographic photoreceptor includes a charge generati...
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JP7331434B2 |
To provide an electrophotographic photoreceptor that is excellent in wear resistance and crack resistance.An electrophotographic photoreceptor comprises: a conductive substrate; and a photosensitive layer. The photosensitive layer includ...
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JP7330836B2 |
To provide an electro-photographic photoreceptor excellent in wear resistance and satisfactory electrical characteristics, a process cartridge having the electro-photographic photoreceptor, and electrophotographic equipment.The electro-p...
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JP7330807B2 |
Provided is an electrophotographic photosensitive member that can achieve both of the suppression of a fluctuation in potential of the photosensitive member at the time of its repeated use, and the prevention of the occurrence of a black...
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JP2023115641A |
To provide an electrophotographic photoreceptor that is excellent in electrification maintainability and has a reduced residual potential.An electrophotographic photoreceptor comprises: a conductive substrate; an undercoat layer arranged...
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JP2023115642A |
To provide an electrophotographic photoreceptor that is excellent in electrification characteristics and prevents the occurrence of ghost during continuous printing.An electrophotographic photoreceptor has a conductive support, an underc...
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JP2023114308A |
To provide an image forming apparatus comprising an electrophotographic photoreceptor that can prevent the occurrence of stress cracks and obtain stable image characteristics for a long period.An image forming apparatus comprises at leas...
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JP7327028B2 |
To provide an electronic device with excellent heat resistance.In an electronic device, an organic compound layer includes a cured product obtained by at least curing an amine compound represented by the formula (1-1).SELECTED DRAWING: F...
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JP7328027B2 |
To prevent the occurrence of image deletion by maintaining the amount of metallic soap on a surface of a photoreceptor.In an image forming apparatus that executes an image forming operation for forming a toner image on a recording materi...
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JP7328026B2 |
To prevent the occurrence of image deletion by performing current detection to maintain the amount of metallic soap on a surface of a photoreceptor.An image forming apparatus has a current detection unit that detects a curent flowing fro...
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JP7325084B2 |
To provide an electrode-organic semiconductor structure for causing charge carrier injection from an electrode at an extremely low voltage and to provide an organic semiconductor element having the same and operable at a low voltage.The ...
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JP7322397B2 |
To provide an optical article having a highly water-repellent inorganic surface layer.An optical article 100A is provided, comprising a substrate 101, and an inorganic surface layer 103 provided on the substrate 101, the inorganic surfac...
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JP2023109504A |
To provide an electrophotographic photoreceptor that can reduce image unevenness and an image forming apparatus including the same, and a method for manufacturing an electrophotographic photoreceptor and a coating liquid for an undercoat...
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JP7323026B2 |
To provide an organic electronic device which has a charge transporting film with low visible light absorptivity.An organic electronic device has a charge transporting film containing at least one of a first charge transporting resin whi...
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JP7321696B2 |
To provide a process cartridge that achieves low torque in a long-term use and can reduce power consumption.A process cartridge used for an image forming apparatus comprises: a rotatable photoreceptor that has a peripheral surface on whi...
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JP2023108094A |
To suppress the occurrence of a printing failure such as fogging.This charging device comprises an image carrier which carries an electrostatic latent image and is capable of rotating, and a charging member for charging the surface of th...
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JP7319858B2 |
To provide an electrophotographic photoreceptor which offers both sufficiently high initial sensitivity as an electrophotographic photoreceptor and suppressed fluctuation in bright section potential during repetitive use.An electrophotog...
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JP7318260B2 |
To provide an electrophotographic photoreceptor that prevents the generation of cracks in a photosensitive layer due to an oil attached to a surface of the electrophotographic photoreceptor.An electrophotographic photoreceptor comprises:...
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JP7314520B2 |
To provide an electrophotographic photoreceptor capable of minimizing local deterioration of cleanability.An electrophotographic photoreceptor 7A comprises a conductive base 4 and a photosensitive layer 5 provided on the conductive base ...
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JP7314519B2 |
An electrophotographic photoreceptor includes a conductive substrate and a photosensitive layer disposed on the conductive substrate. An outermost surface layer of the electrophotographic photoreceptor contains fluorine-containing resin ...
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JP7314610B2 |
To provide an electrophotographic image formation device which can reduce a lubricant memory while suppressing generation of filming or image deletion in a durability condition.The electrophotographic image formation device of the presen...
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JP7314550B2 |
An electrophotographic photoreceptor includes a conductive substrate; an undercoat layer that is disposed on the conductive substrate and contains metal titanate compound particles, an electron transporting compound, and a binder resin; ...
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JP7314549B2 |
To provide an electrophotographic photoreceptor that is excellent in charge maintainability, prevents the occurrence of leakage current caused by sticking of foreign substances, and prevents an increase in residual potential generated wh...
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JP7310329B2 |
To provide an electrophotographic photoreceptor that is excellent in crack resistance and can prevent crystallization.An electrophotographic photoreceptor 1 comprises a conductive substrate 2 and a photosensitive layer 3. The photosensit...
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JP7305458B2 |
The electrophotographic photosensitive member has: a cylindrical support; a charge generating layer formed on the cylindrical support; and a charge transport layer formed on the charge generating layer, the charge generating layer contai...
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JP2023095256A |
To provide metal oxide particles capable of easily forming a tough metal oxide layer when coating metal oxide on the surface of a base material including an organic material to form a metal oxide layer.Metal oxide particles satisfy the r...
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JP2023092760A |
To provide a cylindrical body supporter capable of preventing a cleaning liquid from remaining when drying a cylindrical body and inexpensively manufactured, a method for manufacturing the same, and a method for manufacturing a photocond...
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JP7302320B2 |
In formula (1), Q represents a charge amount of the circumferential surface of the image bearing member. S represents a charge area of the circumferential surface of the image bearing member. d represents a film thickness of the photosen...
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JP7302266B2 |
To provide an electrophotographic photoreceptor that is excellent in wear resistance, prevents the occurrence of a difference in image density (image memory) due to the period of a photoreceptor, and is excellent in stability of wear res...
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JP7301613B2 |
The present disclosure provides an electrophotographic photosensitive member that can simultaneously achieve the suppression of the occurrence of the black spot in a charged portion and the suppression of the deterioration in sensitivity...
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JP7300332B2 |
To provide an evaluation device and an evaluation method for a photoreceptor that can evaluate a film thickness etc., of a multilayer film formed on the photoreceptor (multilayer forming body) simultaneously with high precision through a...
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JP2023089922A |
To provide an electrophotographic photoreceptor in which burn-in ghost is less likely to occur.An electrophotographic photoreceptor comprises: a conductive substrate; and a laminated photosensitive layer that is arranged on the conductiv...
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JP7298271B2 |
To provide an electrophotographic photoreceptor that is excellent in wear resistance and can prevent the occurrence of turn-up of a blade.An electrophotographic photoreceptor 1 comprises: a conductive substrate 2; and a photosensitive la...
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JP2023088097A |
To provide a pallet for a cylindrical body capable of reliably holding even a small-diameter cylindrical body in a substantially standing state, and a manufacturing method of a photosensitive drum substrate using the pallet.A pallet 1 ha...
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JP2023087717A |
To provide an electrophotographic image forming system that prevents an aggregate derived from an external additive from being fastened in a streak shape while ensuring the charge transport property of a photoreceptor, and achieve both e...
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JP7293850B2 |
An electrophotographic photosensitive member (1) includes a conductive substrate (2) and a photosensitive layer (3) of a single layer. The photosensitive layer (3) contains a charge generating material, a binder resin, a hole transport m...
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JP7293851B2 |
An electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer of a single layer. The photosensitive layer contains a charge generating material, a binder resin, a hole transport material, and an ...
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JP7293894B2 |
An image forming apparatus includes an image bearing member, a charger, a static eliminating section, and a determination section. The image bearing member includes a photosensitive layer. The charger charges a circumferential surface of...
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JP2023079591A |
To provide an electrophotographic photoreceptor which has a charge generating layer having little foreign matters and can suppress a transfer memory.An electrophotographic photoreceptor includes a conductive substrate, and a photosensiti...
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JP7286976B2 |
To provide an electrophotographic photoreceptor that can improve charge stability and prevent crystallization of a photosensitive layer.An electrophotographic photoreceptor comprises a conductive substrate and a single-layer photosensiti...
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JP7287108B2 |
To provide an electrophotographic photoreceptor that can form an image with excellent dot reproducibility even when the intensity of exposure is low, and can prevent the generation of transfer blur.An electrophotographic photoreceptor 1 ...
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JP7287105B2 |
An electrophotographic photoreceptor includes a cured outermost layer that includes a polymerized cured product including at least an inorganic filler and a phenol derivative. The inorganic filler is surface-modified with a surface modif...
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JP2023077256A |
To provide a highly durable electrophotographic photoreceptor in which residual potential and the occurrence of a photomemory phenomenon are suppressed.A surface layer and charge transport layer of an electrophotographic photoreceptor co...
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JP2023075973A |
To provide a method for manufacturing an electrophotographic photoreceptor that prevents a reduction in sensitivity when used repeatedly for a long period, and an electrophotographic photoreceptor.A method for manufacturing an electropho...
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JP7283131B2 |
To provide an image forming apparatus that maintains cleanability for a long period and prevents the occurrence of lubricant memory.An image forming apparatus comprises: a photoreceptor that has a protective layer as an outermost layer; ...
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JP2023074262A |
To provide a manufacturing method of an electro-photographic photoreceptor having high wear resistance, good electrical characteristics and achieving higher picture quality for a long time, and the electro-photographic photoreceptor.The ...
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